Merge branch '1.20.5-multiloader' into 1.20.3-multiloader

# Conflicts:
#	gradle.properties

.editorconfig

@@ -0,0 +1,262 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = crlf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+tab_width = 4
+trim_trailing_whitespace = false
+ij_continuation_indent_size = 8
+
+[*.properties]
+ij_any_keep_blank_lines_in_code = unset
+
+[*.java]
+ij_java_align_consecutive_assignments = false
+ij_java_align_consecutive_variable_declarations = false
+ij_java_align_group_field_declarations = false
+ij_java_align_multiline_annotation_parameters = true
+ij_java_align_multiline_array_initializer_expression = false
+ij_java_align_multiline_assignment = false
+ij_java_align_multiline_binary_operation = true
+ij_java_align_multiline_chained_methods = false
+ij_java_align_multiline_extends_list = false
+ij_java_align_multiline_for = true
+ij_java_align_multiline_method_parentheses = false
+ij_java_align_multiline_parameters = false
+ij_java_align_multiline_parameters_in_calls = false
+ij_java_align_multiline_parenthesized_expression = false
+ij_java_align_multiline_records = true
+ij_java_align_multiline_resources = true
+ij_java_align_multiline_ternary_operation = false
+ij_java_align_multiline_text_blocks = false
+ij_java_align_multiline_throws_list = false
+ij_java_align_subsequent_simple_methods = false
+ij_java_align_throws_keyword = false
+ij_java_annotation_parameter_wrap = normal
+ij_java_array_initializer_new_line_after_left_brace = false
+ij_java_array_initializer_right_brace_on_new_line = false
+ij_java_array_initializer_wrap = off
+ij_java_assert_statement_colon_on_next_line = false
+ij_java_assert_statement_wrap = off
+ij_java_assignment_wrap = off
+ij_java_binary_operation_sign_on_next_line = false
+ij_java_binary_operation_wrap = off
+ij_java_blank_lines_after_anonymous_class_header = 0
+ij_java_blank_lines_after_class_header = 0
+ij_java_blank_lines_after_imports = 1
+ij_java_blank_lines_after_package = 1
+ij_java_blank_lines_around_class = 1
+ij_java_blank_lines_around_field = 0
+ij_java_blank_lines_around_field_in_interface = 0
+ij_java_blank_lines_around_initializer = 1
+ij_java_blank_lines_around_method = 1
+ij_java_blank_lines_around_method_in_interface = 1
+ij_java_blank_lines_before_class_end = 0
+ij_java_blank_lines_before_imports = 1
+ij_java_blank_lines_before_method_body = 0
+ij_java_blank_lines_before_package = 0
+ij_java_block_brace_style = end_of_line
+ij_java_block_comment_at_first_column = true
+ij_java_call_parameters_new_line_after_left_paren = false
+ij_java_call_parameters_right_paren_on_new_line = false
+ij_java_call_parameters_wrap = off
+ij_java_case_statement_on_separate_line = true
+ij_java_catch_on_new_line = false
+ij_java_class_annotation_wrap = split_into_lines
+ij_java_class_brace_style = end_of_line
+ij_java_class_count_to_use_import_on_demand = 5
+ij_java_class_names_in_javadoc = 1
+ij_java_do_not_indent_top_level_class_members = false
+ij_java_do_not_wrap_after_single_annotation = false
+ij_java_do_while_brace_force = never
+ij_java_doc_add_blank_line_after_description = true
+ij_java_doc_add_blank_line_after_param_comments = false
+ij_java_doc_add_blank_line_after_return = false
+ij_java_doc_add_p_tag_on_empty_lines = true
+ij_java_doc_align_exception_comments = true
+ij_java_doc_align_param_comments = true
+ij_java_doc_do_not_wrap_if_one_line = false
+ij_java_doc_enable_formatting = true
+ij_java_doc_enable_leading_asterisks = true
+ij_java_doc_indent_on_continuation = false
+ij_java_doc_keep_empty_lines = true
+ij_java_doc_keep_empty_parameter_tag = true
+ij_java_doc_keep_empty_return_tag = true
+ij_java_doc_keep_empty_throws_tag = true
+ij_java_doc_keep_invalid_tags = true
+ij_java_doc_param_description_on_new_line = false
+ij_java_doc_preserve_line_breaks = false
+ij_java_doc_use_throws_not_exception_tag = true
+ij_java_else_on_new_line = false
+ij_java_entity_dd_suffix = EJB
+ij_java_entity_eb_suffix = Bean
+ij_java_entity_hi_suffix = Home
+ij_java_entity_lhi_prefix = Local
+ij_java_entity_lhi_suffix = Home
+ij_java_entity_li_prefix = Local
+ij_java_entity_pk_class = java.lang.String
+ij_java_entity_vo_suffix = VO
+ij_java_enum_constants_wrap = split_into_lines
+ij_java_extends_keyword_wrap = off
+ij_java_extends_list_wrap = off
+ij_java_field_annotation_wrap = on_every_item
+ij_java_finally_on_new_line = false
+ij_java_for_brace_force = never
+ij_java_for_statement_new_line_after_left_paren = false
+ij_java_for_statement_right_paren_on_new_line = false
+ij_java_for_statement_wrap = off
+ij_java_generate_final_locals = false
+ij_java_generate_final_parameters = false
+ij_java_if_brace_force = never
+ij_java_imports_layout = *, |, javax.**, java.**, |, $*
+ij_java_indent_case_from_switch = true
+ij_java_insert_inner_class_imports = false
+ij_java_insert_override_annotation = true
+ij_java_keep_blank_lines_before_right_brace = 2
+ij_java_keep_blank_lines_between_package_declaration_and_header = 2
+ij_java_keep_blank_lines_in_code = 2
+ij_java_keep_blank_lines_in_declarations = 2
+ij_java_keep_control_statement_in_one_line = true
+ij_java_keep_first_column_comment = true
+ij_java_keep_indents_on_empty_lines = true
+ij_java_keep_line_breaks = true
+ij_java_keep_multiple_expressions_in_one_line = false
+ij_java_keep_simple_blocks_in_one_line = false
+ij_java_keep_simple_classes_in_one_line = true
+ij_java_keep_simple_lambdas_in_one_line = true
+ij_java_keep_simple_methods_in_one_line = true
+ij_java_label_indent_absolute = false
+ij_java_label_indent_size = 0
+ij_java_lambda_brace_style = end_of_line
+ij_java_layout_static_imports_separately = true
+ij_java_line_comment_add_space = false
+ij_java_line_comment_at_first_column = true
+ij_java_message_dd_suffix = EJB
+ij_java_message_eb_suffix = Bean
+ij_java_method_annotation_wrap = split_into_lines
+ij_java_method_brace_style = end_of_line
+ij_java_method_call_chain_wrap = off
+ij_java_method_parameters_new_line_after_left_paren = false
+ij_java_method_parameters_right_paren_on_new_line = false
+ij_java_method_parameters_wrap = off
+ij_java_modifier_list_wrap = false
+ij_java_names_count_to_use_import_on_demand = 3
+ij_java_new_line_after_lparen_in_record_header = false
+ij_java_parameter_annotation_wrap = normal
+ij_java_parentheses_expression_new_line_after_left_paren = false
+ij_java_parentheses_expression_right_paren_on_new_line = false
+ij_java_place_assignment_sign_on_next_line = false
+ij_java_prefer_longer_names = true
+ij_java_prefer_parameters_wrap = false
+ij_java_record_components_wrap = normal
+ij_java_repeat_synchronized = true
+ij_java_replace_instanceof_and_cast = false
+ij_java_replace_null_check = true
+ij_java_replace_sum_lambda_with_method_ref = true
+ij_java_resource_list_new_line_after_left_paren = false
+ij_java_resource_list_right_paren_on_new_line = false
+ij_java_resource_list_wrap = off
+ij_java_rparen_on_new_line_in_record_header = false
+ij_java_session_dd_suffix = EJB
+ij_java_session_eb_suffix = Bean
+ij_java_session_hi_suffix = Home
+ij_java_session_lhi_prefix = Local
+ij_java_session_lhi_suffix = Home
+ij_java_session_li_prefix = Local
+ij_java_session_si_suffix = Service
+ij_java_space_after_closing_angle_bracket_in_type_argument = false
+ij_java_space_after_colon = true
+ij_java_space_after_comma = true
+ij_java_space_after_comma_in_type_arguments = true
+ij_java_space_after_for_semicolon = true
+ij_java_space_after_quest = true
+ij_java_space_after_type_cast = true
+ij_java_space_before_annotation_array_initializer_left_brace = false
+ij_java_space_before_annotation_parameter_list = false
+ij_java_space_before_array_initializer_left_brace = false
+ij_java_space_before_catch_keyword = true
+ij_java_space_before_catch_left_brace = true
+ij_java_space_before_catch_parentheses = true
+ij_java_space_before_class_left_brace = true
+ij_java_space_before_colon = true
+ij_java_space_before_colon_in_foreach = true
+ij_java_space_before_comma = false
+ij_java_space_before_do_left_brace = true
+ij_java_space_before_else_keyword = true
+ij_java_space_before_else_left_brace = true
+ij_java_space_before_finally_keyword = true
+ij_java_space_before_finally_left_brace = true
+ij_java_space_before_for_left_brace = true
+ij_java_space_before_for_parentheses = true
+ij_java_space_before_for_semicolon = false
+ij_java_space_before_if_left_brace = true
+ij_java_space_before_if_parentheses = true
+ij_java_space_before_method_call_parentheses = false
+ij_java_space_before_method_left_brace = true
+ij_java_space_before_method_parentheses = false
+ij_java_space_before_opening_angle_bracket_in_type_parameter = false
+ij_java_space_before_quest = true
+ij_java_space_before_switch_left_brace = true
+ij_java_space_before_switch_parentheses = true
+ij_java_space_before_synchronized_left_brace = true
+ij_java_space_before_synchronized_parentheses = true
+ij_java_space_before_try_left_brace = true
+ij_java_space_before_try_parentheses = true
+ij_java_space_before_type_parameter_list = false
+ij_java_space_before_while_keyword = true
+ij_java_space_before_while_left_brace = true
+ij_java_space_before_while_parentheses = true
+ij_java_space_inside_one_line_enum_braces = false
+ij_java_space_within_empty_array_initializer_braces = false
+ij_java_space_within_empty_method_call_parentheses = false
+ij_java_space_within_empty_method_parentheses = false
+ij_java_spaces_around_additive_operators = true
+ij_java_spaces_around_assignment_operators = true
+ij_java_spaces_around_bitwise_operators = true
+ij_java_spaces_around_equality_operators = true
+ij_java_spaces_around_lambda_arrow = true
+ij_java_spaces_around_logical_operators = true
+ij_java_spaces_around_method_ref_dbl_colon = false
+ij_java_spaces_around_multiplicative_operators = true
+ij_java_spaces_around_relational_operators = true
+ij_java_spaces_around_shift_operators = true
+ij_java_spaces_around_type_bounds_in_type_parameters = true
+ij_java_spaces_around_unary_operator = false
+ij_java_spaces_within_angle_brackets = false
+ij_java_spaces_within_annotation_parentheses = false
+ij_java_spaces_within_array_initializer_braces = false
+ij_java_spaces_within_braces = false
+ij_java_spaces_within_brackets = false
+ij_java_spaces_within_cast_parentheses = false
+ij_java_spaces_within_catch_parentheses = false
+ij_java_spaces_within_for_parentheses = false
+ij_java_spaces_within_if_parentheses = false
+ij_java_spaces_within_method_call_parentheses = false
+ij_java_spaces_within_method_parentheses = false
+ij_java_spaces_within_parentheses = false
+ij_java_spaces_within_record_header = false
+ij_java_spaces_within_switch_parentheses = false
+ij_java_spaces_within_synchronized_parentheses = false
+ij_java_spaces_within_try_parentheses = false
+ij_java_spaces_within_while_parentheses = false
+ij_java_special_else_if_treatment = true
+ij_java_subclass_name_suffix = Impl
+ij_java_ternary_operation_signs_on_next_line = false
+ij_java_ternary_operation_wrap = off
+ij_java_test_name_suffix = Test
+ij_java_throws_keyword_wrap = normal
+ij_java_throws_list_wrap = off
+ij_java_use_external_annotations = false
+ij_java_use_fq_class_names = false
+ij_java_use_relative_indents = false
+ij_java_use_single_class_imports = true
+ij_java_variable_annotation_wrap = normal
+ij_java_visibility = public
+ij_java_while_brace_force = never
+ij_java_while_on_new_line = false
+ij_java_wrap_comments = false
+ij_java_wrap_first_method_in_call_chain = false
+ij_java_wrap_long_lines = false

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -0,0 +1,90 @@
+name: Bug Report
+description: Report a bug encountered with SkinRestorer
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        🐛 **Before submitting:**
+        - Ensure you're using the latest mod version
+        - Ensure this bug is reproducible consistently
+        - Check existing issues for duplicates
+
+  - type: input
+    id: mod-version
+    attributes:
+      label: SkinRestorer Version
+      description: Exact version of the mod
+      placeholder: e.g., 2.2.1
+    validations:
+      required: true
+
+  - type: input
+    id: minecraft-version
+    attributes:
+      label: Minecraft Version
+      description: Full Minecraft version
+      placeholder: e.g., 1.21.4
+    validations:
+      required: true
+
+  - type: input
+    id: loader-version
+    attributes:
+      label: Mod Loader & Version
+      description: Fabric/Quilt/Forge/NeoForge version
+      placeholder: e.g., Fabric 0.15.7
+    validations:
+      required: true
+
+  - type: input
+    id: java-version
+    attributes:
+      label: Java Version
+      placeholder: e.g. 17, 21
+    validations:
+      required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Bug Description
+      description: What happened vs what you expected to happen
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps
+    attributes:
+      label: Reproduction Steps
+      description: Provide step-by-step instructions or a video showing how to reproduce the issue.
+      placeholder: |
+        1. 
+        2. 
+        3. 
+        Or a video demonstrating the issue.
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant Logs
+      description: |
+        Please provide any relevant logs, especially error logs from your server console or `latest.log` file.
+        **Important**: Paste the FULL log content. Use a service like [mclo.gs](https://mclo.gs/).
+      render: shell
+    validations:
+      required: true
+
+  - type: checkboxes
+    id: confirmations
+    attributes:
+      label: Confirmations
+      options:
+        - label: I've checked for existing issues
+          required: true
+        - label: This bug is reproducible consistently
+          required: true
+        - label: I've tested without other mods

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -0,0 +1,52 @@
+name: Feature Request
+description: Suggest a new feature for SkinRestorer
+title: "[Feature Request]: "
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        💡 **Before submitting:**
+        - Check existing feature requests for duplicates
+        - Be clear and concise
+        - Explain the *why* and the *how*
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Feature Description
+      description: Detailed description of the feature
+    validations:
+      required: true
+
+  - type: textarea
+    id: motivation
+    attributes:
+      label: Motivation
+      description: Why is this feature needed? What problem does it solve?
+    validations:
+      required: true
+
+  - type: textarea
+    id: use-cases
+    attributes:
+      label: Use Cases
+      description: How would this feature be used and who would benefit?
+    validations:
+      required: true
+
+  - type: textarea
+    id: implementation-ideas
+    attributes:
+      label: Implementation Ideas (Optional)
+      description: Any thoughts on how it could be implemented?
+    validations:
+      required: false
+
+  - type: checkboxes
+    id: confirmations
+    attributes:
+      label: Confirmations
+      options:
+        - label: I've checked for existing feature requests
+          required: true

.github/workflows/build.yml

@@ -1,33 +1,39 @@
 name: build
-on: [pull_request, push]
+on:
+    push:
+        paths-ignore:
+            - '.github/**'
+            - '*.md'
+    pull_request:
+        paths-ignore:
+            - '.github/**'
+            - '*.md'
 
 jobs:
-  build:
-    strategy:
-      matrix:
-        java: [
-          21,
-        ]
-        os: [ubuntu-22.04]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - name: checkout repository
-        uses: actions/checkout@v3
-      - name: validate gradle wrapper
-        uses: gradle/wrapper-validation-action@v1
-      - name: setup jdk ${{ matrix.java }}
-        uses: actions/setup-java@v3
-        with:
-          java-version: ${{ matrix.java }}
-          distribution: 'microsoft'
-      - name: make gradle wrapper executable
-        if: ${{ runner.os != 'Windows' }}
-        run: chmod +x ./gradlew
-      - name: build
-        run: ./gradlew build
-      - name: capture build artifacts
-        if: ${{ runner.os == 'Linux' && matrix.java == '21' }}
-        uses: actions/upload-artifact@v3
-        with:
-          name: Artifacts
-          path: build/libs/
+    build:
+        runs-on: ubuntu-latest
+        
+        steps:
+            -   uses: actions/checkout@v4
+
+            -   uses: actions/setup-java@v4
+                with:
+                    distribution: temurin
+                    java-version: 21
+
+            -   name: Setup Gradle
+                uses: gradle/actions/setup-gradle@v3
+                with:
+                    cache-read-only: false
+
+            -   name: Change wrapper permissions
+                run: chmod +x ./gradlew
+
+            -   name: Run build with Gradle Wrapper
+                run: ./gradlew build
+
+            -   name: Upload built JARs
+                uses: actions/upload-artifact@v4
+                with:
+                    name: skin-restorer-artifacts
+                    path: ./*/build/libs/*.jar

.github/workflows/release.yml

@@ -0,0 +1,36 @@
+name: release
+on:
+    workflow_dispatch:
+
+jobs:
+    release:
+        environment: release
+        runs-on: ubuntu-latest
+        
+        steps:
+            -   uses: actions/checkout@v4
+
+            -   uses: actions/setup-java@v4
+                with:
+                    distribution: temurin
+                    java-version: 21
+
+            -   name: Setup Gradle
+                uses: gradle/actions/setup-gradle@v3
+                with:
+                    cache-read-only: false
+
+            -   name: Change wrapper permissions
+                run: chmod +x ./gradlew
+
+            -   name: Publish to CurseForge, Modrinth
+                run: ./gradlew build publishMods
+                env:
+                    CURSEFORGE_API_KEY: ${{ secrets.CURSEFORGE_API_KEY }}
+                    MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}
+
+            -   name: Upload built JARs
+                uses: actions/upload-artifact@v4
+                with:
+                    name: skin-restorer-artifacts
+                    path: ./*/build/libs/*.jar

.gitignore

@@ -28,6 +28,6 @@ bin/
 
 *.DS_Store
 
-# fabric
-
+.architectury-transformer/
 run/
+scripts/

CHANGELOG.md

@@ -0,0 +1,159 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [2.5.0] - 2026-01-14
+### Added
+- Added collection skin provider (allows assigning random skins from a predefined set)
+- Added `forceFirstJoinSkinFetch` config option to force skin fetch on first join even if player already has a skin
+
+## [2.4.3] - 2025-07-25
+### Fixed
+- Fixed crash on client when loading player head skin (fixes [#63](https://github.com/Suiranoil/SkinRestorer/issues/63) and [#64](https://github.com/Suiranoil/SkinRestorer/issues/64))
+- Fixed server freeze when loading player head skin
+
+## [2.4.2] - 2025-07-13
+### Fixed
+- Fix crash when head profile name is null (fixes [#60](https://github.com/Suiranoil/SkinRestorer/issues/60) and [#61](https://github.com/Suiranoil/SkinRestorer/issues/61))
+
+## [2.4.1] - 2025-07-09
+### Changed
+- Log full exception and argument when unable to fetch/set skin
+### Fixed
+- Fixed mojang provider using offline uuids when unable to fetch actual uuid resulting in `no profile with uuid` error
+
+## [2.4.0] - 2025-07-05
+### Fixed
+- Added support for player heads
+
+## [2.3.5] - 2025-06-21
+### Fixed
+- Fix mod not loading on client
+
+## [2.3.4] - 2025-06-19
+### Added
+- Added support for minecraft 1.21.6
+
+## [2.3.3] - 2025-06-01
+### Fixed
+- Fixed forge mixin crash (closes [#54](https://github.com/Suiranoil/SkinRestorer/issues/53))
+### Removed
+- Removed minecraft 1.19 support
+
+## [2.3.2] - 2025-05-24
+### Fixed
+- Fixed mixin incompatibility with ModernFix (closes [#42](https://github.com/Suiranoil/SkinRestorer/issues/52))
+
+## [2.3.1] - 2025-05-03
+### Added
+- Added support for minecraft 1.19-1.19.4
+### Changed
+- Use services and session server urls from environment
+
+## [2.3.0] - 2025-03-27
+### Added
+- Added `skinApplyDelayOnJoin` config option (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#skinapplydelayonjoin))
+### Changed
+- Updated to 1.21.5
+### Removed
+- [NeoForge] Dropped support for NeoForge on Minecraft 1.20.5-1.20.6
+
+## [2.2.1] - 2024-12-23
+### Fixed
+- Fixed game not closing because of mineskin working threads (closes [#41](https://github.com/Suiranoil/SkinRestorer/issues/41))
+
+## [2.2.0] - 2024-12-02
+### Added
+- Added support for [SkinShuffle](https://modrinth.com/mod/skinshuffle) clients (requires FabricAPI on Fabric)
+  (closes [#34](https://github.com/Suiranoil/SkinRestorer/issues/34))
+- Added `providers.mineskin.apiKey` config option (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#providersmineskin))
+### Changed
+- Migrated to MineSkin's new API V2
+### Fixed
+- Fixed `providers` config validation
+### Removed
+- Dropped support for NeoForge on Minecraft 1.20.2-1.20.4
+
+## [2.1.0] - 2024-09-26
+### Added
+- Added `config reload` command for dynamic configuration updates
+- Added `refreshSkinOnJoin` config option (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#refreshskinonjoin))
+- Implemented caching for skin providers
+- Added provider configurations (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#providers))
+- Added username and url validation for requests
+### Fixed
+- Fixed old skin directory migration not working
+- Prevented overwriting existing skin files during migration
+
+## [2.0.3] - 2024-08-20
+### Added
+- Added `firstJoinSkinProvider` config option (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Config#firstjoinskinprovider))
+### Fixed
+- Fixed ability to set config values to `null`
+
+## [2.0.2] - 2024-08-04
+### Added
+- Backported to minecraft 1.20-1.20.2
+- [Forge] Added support for Forge
+### Changed
+- Changed minimum java version to 17 for minecraft 1.20-1.20.4
+
+## [2.0.1] - 2024-07-16
+### Added
+- Added Traditional Chinese translation ([#24](https://github.com/Suiranoil/SkinRestorer/pull/24)) - *yichifauzi*, *notlin4*
+### Fixed
+- Fixed concurrent modification exception
+
+## [2.0.0] - 2024-07-03
+### Added
+- Added support for NeoForge
+- Added support for singleplayer
+- Added ely.by skin provider
+- Added `/skin refresh` command to get up-to-date skin
+- Added `/skin reset` command to remove skin data
+- Added proper support for secure servers
+- Added support for permissions api
+- Added translations
+### Changed
+- Changed to save skin data per world
+### Fixed
+- Fixed entity flickering on skin reload
+- Fixed player being left in invalid state on skin reload if on death screen
+
+## [1.2.6] - 2024-06-25
+### Added
+- Added support for command blocks
+### Changed
+- Changed to better skin refresh logic
+### Fixed
+- Fixed no permission level for /skin clear targets
+- Fixed loading world screen on skin change
+
+## [1.2.4] - 2023-09-30
+### Fixed
+- Fixed player stops riding entity with skin change
+- Fixed armor and hand items not displaying with skin change
+
+## [1.2.3] - 2023-06-10
+### Changed
+- Updated to 1.20-1.20.1
+
+## [1.2.2] - 2022-12-21
+### Changed
+- Updated to 1.19.3
+
+## [1.2.1] - 2022-11-24
+### Fixed
+- Fixed incorrect filepath resolvement on linux systems
+
+## [1.2.0] - 2022-11-18
+### Added
+- Added support for fake players ([#4](https://github.com/Suiranoil/SkinRestorer/pull/4)) - *CaveNightingale*
+### Changed
+- Allow player to apply their skin changes immediately ([#4](https://github.com/Suiranoil/SkinRestorer/pull/4)) - _CaveNightingale_
+
+## [1.0.4] - 2021-08-28
+### Fixed
+- Fixed "invalid player data" exception

CHANGELOG_LATEST.md

@@ -0,0 +1,3 @@
+### Added
+- Added collection skin provider (allows assigning random skins from a predefined set) (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#providerscollection))
+- Added `forceFirstJoinSkinFetch` config option to force skin fetch on first join even if player already has a skin (see [wiki](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration#forcefirstjoinskinfetch))

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021 LionariusPy
+Copyright (c) 2021-2024 Lionarius
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,49 +1,44 @@
 # SkinRestorer
-![GitHub License](https://img.shields.io/github/license/Suiranoil/SkinRestorer)
-![Build](https://github.com/Suiranoil/SkinRestorer/actions/workflows/build.yml/badge.svg)
-![Enviroment](https://img.shields.io/badge/enviroment-server-orangered)
-[![CurseForge Downloads](https://cf.way2muchnoise.eu/skinrestorer.svg)](https://www.curseforge.com/minecraft/mc-mods/skinrestorer)
-[![Modrinth Downloads](https://img.shields.io/modrinth/dt/skinrestorer?logo=modrinth)](https://modrinth.com/mod/skinrestorer)
 
+<a href="https://modrinth.com/mod/skinrestorer"><img src="https://raw.githubusercontent.com/Suiranoil/badges/main/assets/minecraft/platform/modrinth/mini/badge.svg" alt="Modrinth"></a>
+<a href="https://www.curseforge.com/minecraft/mc-mods/skinrestorer"><img src="https://raw.githubusercontent.com/Suiranoil/badges/main/assets/minecraft/platform/curseforge/mini/badge.svg" alt="CurseForge"></a>
 
-SkinRestorer is a **server-side** only mod for Fabric that allows players to use and change skins on servers running in offline/insecure mode.
+A server-side mod for managing and restoring player skins.
 
-## Features
-- **Set Skins from Mojang Account**: Fetch and apply skins using a valid Minecraft account name.
-- **Set Skins from URL**: Apply skins from any image URL, supporting both classic (Steve) and slim (Alex) skin models.
+## ✨ Features
 
-## Command Usage Guide
+- **Set skins from Mojang Account**: Fetch and apply skins using a valid Minecraft username.
+- **Set skins from Ely.by**: Fetch and apply skins using a valid [Ely.by](https://ely.by/) username.
+- **Set skins from URL**: Fetch and apply skins from any image URL, supporting both classic (Steve) and slim (Alex) skin
+  models.
+- **Automatic skin fetching**: Automatically fetch skin from Mojang/Ely.by when a player joins the server running in
+  offline/insecure mode ([configurable](https://github.com/Suiranoil/SkinRestorer/wiki/Configuration)).
+- **Singleplayer support**: Apply skins individually for each world.
+- **Permissions API support**
+- **SkinShuffle support**: Allow players with [SkinShuffle](https://modrinth.com/mod/skinshuffle) installed to apply skins using GUI.
 
-### Set Mojang Skin
-```
-/skin set mojang <skin_name> [<targets>]
-```
-- **Parameters:**
-  - `<skin_name>`: Minecraft account name to fetch the skin from.
-  - `[<targets>]`: (Optional, server operators only) Player(s) to apply the skin to.
+## 📜 Command Usage Guide
 
-### Set Web Skin
-```
-/skin set web (classic|slim) "<url>" [<targets>]
-```
-- **Parameters:**
-  - `(classic|slim)`: Type of the skin model (`classic` for Steve model, `slim` for Alex model).
-  - `"<url>"`: URL pointing to the skin image file (ensure it follows Minecraft's skin size and format requirements).
-  - `[<targets>]`: (Optional, server operators only) Player(s) to apply the skin to.
+For a detailed list of available commands and their usage, please visit
+the [commands wiki page](https://github.com/Suiranoil/SkinRestorer/wiki/Commands).
 
-### Clear Skin
-```
-/skin clear [<targets>]
-```
-- **Parameters:**
-  - `[<targets>]`: (Optional, server operators only) Player(s) to clear the skin for.
+## ❌ Known Incompatibilities
 
-### Notes:
-- If `targets` is not specified, the command will apply to the player executing the command.
+- **[Arclight](https://github.com/IzzelAliz/Arclight) (<=1.20.1)**: Trials or older versions are not compatible due to
+  mixin conflicts.
+  As an alternative, consider using the [SkinsRestorer](https://www.spigotmc.org/resources/skinsrestorer.2124/) plugin.
 
-### Examples:
-```
-/skin set mojang Notch
-/skin set web classic "http://example.com/skin.png"
-/skin clear @a
-```
+## 🪙 Donation
+
+If you enjoy using **SkinRestorer** and would like to support its development, you can contribute through the following
+platforms:
+
+<a href="https://ko-fi.com/lionarius"><img src="https://raw.githubusercontent.com/Suiranoil/badges/main/assets/donation/kofi/mini/badge.svg" alt="Ko-fi" height="32"></a>
+
+<a href="https://boosty.to/lionarius"><img src="https://raw.githubusercontent.com/Suiranoil/badges/main/assets/donation/boosty/mini/badge.svg" alt="Boosty" height="32"></a>
+
+Bitcoin (BTC): `1Ndbwny8pxdnWXFgadp95fp97y5JqMJKTX`  
+USDT (TRC20): `TGXn8wrqku5KLzwPWQAeH7wgnV4UzwHEae`  
+USDT (TON): `UQAQF18Xlmx-V1oZ90C2YOju5qI7q1LgrCP5QaIUhqIELmDS`
+
+Thank you for your generosity!

build.gradle

@@ -1,41 +1,29 @@
 plugins {
-	id 'fabric-loom' version '1.7-SNAPSHOT'
+    // see https://fabricmc.net/develop/ for new versions
+    id 'fabric-loom' version '1.10-SNAPSHOT' apply false
+    // see https://projects.neoforged.net/neoforged/moddevgradle for new versions
+    id 'net.neoforged.moddev' version '2.0.+' apply false
+    // see https://files.minecraftforge.net/net/minecraftforge/gradle/ForgeGradle/ for new versions
+    id 'net.minecraftforge.gradle' version '6.0.+' apply false
+    id 'org.parchmentmc.librarian.forgegradle' version '1.+' apply false
+
+    id 'org.spongepowered.mixin' version '0.7-SNAPSHOT' apply false
+
+    id 'me.modmuss50.mod-publish-plugin' version '0.8.+' apply false
 }
 
-archivesBaseName = project.archives_base_name
-version = "${project.mod_version}+${project.minecraft_version}"
-group = project.maven_group
-
-repositories {
-	maven { url = "https://masa.dy.fi/maven" }
-}
-
-dependencies {
-	minecraft "com.mojang:minecraft:${project.minecraft_version}"
-	mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
-	modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
-}
-
-processResources {
-	inputs.property "version", project.version
-
-	filesMatching("fabric.mod.json") {
-		expand "version": project.version
-	}
-}
-
-tasks.withType(JavaCompile).configureEach {
-	it.options.encoding = "UTF-8"
-
-	it.options.release.set(21)
-}
-
-java {
-	withSourcesJar()
-}
-
-jar {
-	from("LICENSE") {
-		rename { "${it}_${project.archivesBaseName}"}
-	}
+allprojects {
+    repositories {
+        exclusiveContent {
+            forRepository {
+                maven {
+                    name = 'lionarius-repository'
+                    url = 'https://reposilite.lionarius.ru/releases'
+                }
+            }
+            filter {
+                includeGroupAndSubgroups('org.mineskin')
+            }
+        }
+    }
 }

buildSrc/build.gradle

@@ -0,0 +1,3 @@
+plugins {
+    id 'groovy-gradle-plugin'
+}

buildSrc/src/main/groovy/multiloader-common.gradle

@@ -0,0 +1,110 @@
+plugins {
+    id 'java-library'
+}
+
+base {
+    archivesName = "${mod_id}"
+    version = "${mod_version}+${minecraft_version}-${project.name}"
+}
+
+java {
+    toolchain.languageVersion = JavaLanguageVersion.of(java_version)
+    withSourcesJar()
+}
+
+repositories {
+    mavenCentral()
+    maven {
+        name = 'ParchmentMC'
+        url = 'https://maven.parchmentmc.org'
+    }
+    maven {
+        name = 'Fabric'
+        url = 'https://maven.fabricmc.net'
+    }
+    maven {
+        name = 'Forge'
+        url = 'https://maven.minecraftforge.net'
+    }
+    maven {
+        name = 'NeoForge'
+        url = 'https://maven.neoforged.net/releases'
+    }
+    exclusiveContent {
+        forRepository {
+            maven {
+                name = 'Sponge'
+                url = 'https://repo.spongepowered.org/repository/maven-public'
+            }
+        }
+        filter {
+            includeGroupAndSubgroups('org.spongepowered')
+        }
+    }
+}
+
+// Declare capabilities on the outgoing configurations.
+// Read more about capabilities here: https://docs.gradle.org/current/userguide/component_capabilities.html#sec:declaring-additional-capabilities-for-a-local-component
+['apiElements', 'runtimeElements', 'sourcesElements'].each { variant ->
+    configurations."$variant".outgoing {
+        capability("$group:${base.archivesName.get()}:$version")
+        capability("$group:$mod_id-${project.name}:$version")
+        capability("$group:$mod_id:$version")
+    }
+}
+
+sourcesJar {
+    from(rootProject.file('LICENSE')) {
+        rename { "${it}_${mod_name}" }
+    }
+}
+
+jar {
+    from(rootProject.file('LICENSE')) {
+        rename { "${it}_${mod_name}" }
+    }
+
+    manifest {
+        attributes([
+                'Specification-Title'   : mod_name,
+                'Specification-Vendor'  : mod_author,
+                'Specification-Version' : project.jar.archiveVersion,
+                'Implementation-Title'  : project.name,
+                'Implementation-Version': project.jar.archiveVersion,
+                'Implementation-Vendor' : mod_author,
+                'Built-On-Minecraft'    : minecraft_version
+        ])
+    }
+}
+
+processResources {
+    def expandProps = [
+            'version'                      : version,
+            'group'                        : project.group, //Else we target the task's group.
+            'minecraft_version'            : minecraft_version,
+            'minecraft_version_range'      : minecraft_version_range,
+            'mod_name'                     : mod_name,
+            'mod_author'                   : mod_author,
+            'mod_id'                       : mod_id,
+            'mod_homepage'                 : mod_homepage,
+            'mod_sources'                  : mod_sources,
+            'mod_issues'                   : mod_issues,
+            'license'                      : license,
+            'description'                  : project.description,
+            'credits'                      : credits,
+            'java_version'                 : java_version,
+            
+            // Loader specific properties
+            'fabric_loader_version'        : project.hasProperty('fabric_loader_version') ? fabric_loader_version : '',
+            'forge_version'                : project.hasProperty('forge_version') ? forge_version : '',
+            'forge_loader_version_range'   : project.hasProperty('forge_loader_version_range') ? forge_loader_version_range : '',
+            'neoforge_version'             : project.hasProperty('neoforge_version') ? neoforge_version : '',
+            'neoforge_loader_version_range': project.hasProperty('neoforge_loader_version_range') ? neoforge_loader_version_range : ''
+    ]
+
+    filesMatching(['pack.mcmeta', 'fabric.mod.json', 'META-INF/mods.toml', 'META-INF/neoforge.mods.toml', '*.mixins.json']) {
+        expand expandProps
+    }
+
+    inputs.properties(expandProps)
+}

buildSrc/src/main/groovy/multiloader-loader.gradle

@@ -0,0 +1,39 @@
+plugins {
+    id 'multiloader-common'
+}
+
+configurations {
+    commonJava {
+        canBeResolved = true
+    }
+    commonResources {
+        canBeResolved = true
+    }
+}
+
+dependencies {
+    compileOnly(project(':common')) {
+        capabilities {
+            requireCapability "$group:$mod_id"
+        }
+    }
+    commonJava project(path: ':common', configuration: 'commonJava')
+    commonResources project(path: ':common', configuration: 'commonResources')
+}
+
+tasks.named('compileJava', JavaCompile) {
+    dependsOn(configurations.commonJava)
+    source(configurations.commonJava)
+}
+
+processResources {
+    dependsOn(configurations.commonResources)
+    from(configurations.commonResources)
+}
+
+tasks.named('sourcesJar', Jar) {
+    dependsOn(configurations.commonJava)
+    from(configurations.commonJava)
+    dependsOn(configurations.commonResources)
+    from(configurations.commonResources)
+}

buildSrc/src/main/groovy/multiloader-publish.gradle

@@ -0,0 +1,46 @@
+plugins {
+    id "me.modmuss50.mod-publish-plugin"
+}
+
+publishMods {
+    file = project.layout.buildDirectory.file("libs/${project.archivesBaseName}-${project.version}.jar").map { it.asFile }.getOrNull()
+
+    modLoaders.add(project.name)
+
+    if (project.hasProperty('additional_modloaders') && !additional_modloaders.isEmpty())
+    {
+        def loaders = additional_modloaders.split(',')
+        for (loader in loaders)
+            modLoaders.add(loader)
+    }
+    
+    type = STABLE
+    version = project.version
+    displayName = "[${project.name.capitalize()}] ${mod_name} ${mod_version}"
+    changelog = rootProject.file('CHANGELOG_LATEST.md').text
+
+    curseforge {
+        projectId = curseforge_id
+
+        dryRun = providers.environmentVariable("CURSEFORGE_API_KEY").getOrNull() == null
+        accessToken = providers.environmentVariable("CURSEFORGE_API_KEY")
+
+        minecraftVersions.addAll(minecraft_version_list.split(','))
+        serverRequired = true
+
+        if (project.hasProperty('optional_dependencies') && !optional_dependencies.isEmpty())
+            optional(optional_dependencies.split(','))
+    }
+
+    modrinth {
+        projectId = modrinth_id
+
+        dryRun = providers.environmentVariable("MODRINTH_TOKEN").getOrNull() == null
+        accessToken = providers.environmentVariable("MODRINTH_TOKEN")
+
+        minecraftVersions.addAll(minecraft_version_list.split(','))
+
+        if (project.hasProperty('optional_dependencies') && !optional_dependencies.isEmpty())
+            optional(optional_dependencies.split(','))
+    }
+}

common/build.gradle

@@ -0,0 +1,43 @@
+plugins {
+    id 'multiloader-common'
+
+    id 'fabric-loom'
+}
+
+dependencies {
+    minecraft "com.mojang:minecraft:${minecraft_version}"
+    mappings loom.layered {
+        officialMojangMappings()
+        parchment("org.parchmentmc.data:parchment-${parchment_minecraft}:${parchment_version}@zip")
+    }
+    compileOnly group: 'org.spongepowered', name: 'mixin', version: '0.8.5'
+
+    implementation("org.mineskin:java-client:${mineskin_client_version}")
+}
+
+loom {
+    def aw = project.file("src/main/resources/${mod_id}.accesswidener")
+    if (aw.exists()) {
+        accessWidenerPath.set(aw)
+    }
+
+    mixin {
+        useLegacyMixinAp = false
+    }
+}
+
+configurations {
+    commonJava {
+        canBeResolved = false
+        canBeConsumed = true
+    }
+    commonResources {
+        canBeResolved = false
+        canBeConsumed = true
+    }
+}
+
+artifacts {
+    commonJava sourceSets.main.java.sourceDirectories.singleFile
+    commonResources sourceSets.main.resources.sourceDirectories.singleFile
+}

common/gradle.properties

@@ -0,0 +1 @@
+fabric.loom.dontRemap=true

common/src/main/java/net/lionarius/skinrestorer/SkinRestorer.java

@@ -0,0 +1,202 @@
+package net.lionarius.skinrestorer;
+
+import com.google.common.base.Throwables;
+import com.mojang.authlib.GameProfile;
+import com.mojang.brigadier.CommandDispatcher;
+import net.lionarius.skinrestorer.command.SkinCommand;
+import net.lionarius.skinrestorer.config.Config;
+import net.lionarius.skinrestorer.config.provider.BuiltInProviderConfig;
+import net.lionarius.skinrestorer.exception.TransparentException;
+import net.lionarius.skinrestorer.platform.Services;
+import net.lionarius.skinrestorer.skin.SkinIO;
+import net.lionarius.skinrestorer.skin.SkinStorage;
+import net.lionarius.skinrestorer.skin.SkinValue;
+import net.lionarius.skinrestorer.skin.provider.*;
+import net.lionarius.skinrestorer.translation.Translation;
+import net.lionarius.skinrestorer.util.*;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.storage.LevelResource;
+import org.jetbrains.annotations.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.nio.file.Path;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
+
+public final class SkinRestorer {
+    public static final String MOD_ID = "skinrestorer";
+    public static final Logger LOGGER = LoggerFactory.getLogger("SkinRestorer");
+    
+    private static final SkinProviderRegistry providersRegistry = new SkinProviderRegistry();
+    private static SkinStorage skinStorage;
+    private static Path configDir;
+    private static Config config;
+    private static TickedScheduler tickedScheduler;
+    private static MinecraftServer minecraftServer;
+    
+    private SkinRestorer() {}
+    
+    public static SkinStorage getSkinStorage() {
+        return SkinRestorer.skinStorage;
+    }
+    
+    public static Path getConfigDir() {
+        return SkinRestorer.configDir;
+    }
+    
+    public static Config getConfig() {
+        return SkinRestorer.config;
+    }
+    
+    public static SkinProviderRegistry getProvidersRegistry() {
+        return SkinRestorer.providersRegistry;
+    }
+    
+    public static TickedScheduler getTickedScheduler() {
+        return SkinRestorer.tickedScheduler;
+    }
+    
+    public static @Nullable MinecraftServer getMinecraftServer() {
+        return SkinRestorer.minecraftServer;
+    }
+    
+    public static Optional<SkinProvider> getProvider(String name) {
+        return Optional.ofNullable(SkinRestorer.providersRegistry.get(name));
+    }
+    
+    public static ResourceLocation resourceLocation(String name) {
+        return new ResourceLocation(SkinRestorer.MOD_ID, name);
+    }
+    
+    public static String assetPath(String name) {
+        return String.format("/assets/%s/%s", SkinRestorer.MOD_ID, name);
+    }
+    
+    public static void onInitialize() {
+        SkinRestorer.configDir = Services.PLATFORM.getConfigDirectory().resolve(SkinRestorer.MOD_ID);
+        SkinRestorer.reloadConfig();
+        
+        SkinRestorer.providersRegistry.register(EmptySkinProvider.PROVIDER_NAME, SkinProvider.EMPTY, false);
+        SkinRestorer.providersRegistry.register(SkinShuffleSkinProvider.PROVIDER_NAME, SkinProvider.SKIN_SHUFFLE, false);
+        
+        SkinRestorer.registerDefaultSkinProvider(MojangSkinProvider.PROVIDER_NAME, SkinProvider.MOJANG, SkinRestorer.getConfig().providersConfig().mojang());
+        SkinRestorer.registerDefaultSkinProvider(ElyBySkinProvider.PROVIDER_NAME, SkinProvider.ELY_BY, SkinRestorer.getConfig().providersConfig().ely_by());
+        SkinRestorer.registerDefaultSkinProvider(MineskinSkinProvider.PROVIDER_NAME, SkinProvider.MINESKIN, SkinRestorer.getConfig().providersConfig().mineskin());
+        SkinRestorer.registerDefaultSkinProvider(CollectionSkinProvider.PROVIDER_NAME, SkinProvider.COLLECTION, SkinRestorer.getConfig().providersConfig().collection());
+    }
+    
+    private static void registerDefaultSkinProvider(String defaultName, SkinProvider provider, BuiltInProviderConfig config) {
+        var isDefaultName = config.name().equals(defaultName);
+        SkinRestorer.providersRegistry.register(defaultName, provider, config.enabled() && isDefaultName);
+        
+        if (!isDefaultName && !SkinProvider.BUILTIN_PROVIDER_NAMES.contains(config.name()))
+            SkinRestorer.providersRegistry.register(config.name(), provider, config.enabled());
+    }
+    
+    public static void reloadConfig() {
+        SkinRestorer.config = Config.load(SkinRestorer.getConfigDir());
+        Translation.reloadTranslations();
+        WebUtils.recreateHttpClient();
+        
+        MojangSkinProvider.reload();
+        ElyBySkinProvider.reload();
+        MineskinSkinProvider.reload();
+        CollectionSkinProvider.reload();
+    }
+    
+    public static Collection<ServerPlayer> applySkin(MinecraftServer server, Iterable<GameProfile> targets, SkinValue value, boolean save) {
+        var acceptedPlayers = new HashSet<ServerPlayer>();
+        
+        for (var profile : targets) {
+            if (!SkinRestorer.getSkinStorage().hasSavedSkin(profile.getId()))
+                value = value.setOriginalValue(PlayerUtils.getPlayerSkin(profile));
+            
+            if (PlayerUtils.areSkinPropertiesEquals(value.value(), PlayerUtils.getPlayerSkin(profile)))
+                continue;
+            
+            if (save)
+                SkinRestorer.getSkinStorage().setSkin(profile.getId(), value);
+            
+            PlayerUtils.applyRestoredSkin(profile, value.value());
+            
+            var player = server.getPlayerList().getPlayer(profile.getId());
+            if (player == null)
+                continue;
+            
+            PlayerUtils.refreshPlayer(player);
+            acceptedPlayers.add(player);
+            
+            SkinRestorer.getTickedScheduler().cancel(player.getUUID());
+        }
+        
+        return acceptedPlayers;
+    }
+    
+    public static Collection<ServerPlayer> applySkin(MinecraftServer server, Iterable<GameProfile> targets, SkinValue value) {
+        return SkinRestorer.applySkin(server, targets, value, true);
+    }
+    
+    public static CompletableFuture<Result<Collection<ServerPlayer>, String>> setSkinAsync(
+            MinecraftServer server,
+            Collection<GameProfile> targets,
+            SkinProviderContext context,
+            boolean save
+    ) {
+        return CompletableFuture.supplyAsync(
+                        () -> SkinRestorer.getProvider(context.name()).map(provider -> provider.fetchSkin(context.argument(), context.variant()))
+                )
+                .thenApplyAsync(result -> {
+                    if (result.isEmpty())
+                        return Result.<Collection<ServerPlayer>, String>error("provider '" + context.name() + "' is not registered");
+                    
+                    var skinResult = result.get();
+                    if (skinResult.isError())
+                        throw new TransparentException(Throwables.getRootCause(skinResult.getErrorValue()));
+                    
+                    var skinValue = SkinValue.fromProviderContextWithValue(context, skinResult.getSuccessValue().orElse(null));
+                    
+                    var acceptedPlayers = SkinRestorer.applySkin(server, targets, skinValue, save);
+                    
+                    return Result.<Collection<ServerPlayer>, String>success(acceptedPlayers);
+                }, server)
+                .exceptionally(e -> {
+                    SkinRestorer.LOGGER.error("Failed to set skin '{}:{}'", context.name(), context.argument(), e);
+                    return Result.error(e.getMessage());
+                });
+    }
+    
+    public static class Events {
+        private Events() {}
+        
+        public static void onServerStarted(MinecraftServer server) {
+            Path worldSkinDirectory = server.getWorldPath(LevelResource.ROOT).resolve(SkinRestorer.MOD_ID);
+            FileUtils.tryMigrateOldSkinDirectory(SkinRestorer.getConfigDir(), worldSkinDirectory);
+            
+            SkinRestorer.skinStorage = new SkinStorage(new SkinIO(worldSkinDirectory));
+            SkinRestorer.tickedScheduler = new TickedScheduler(server);
+            server.addTickable(SkinRestorer.tickedScheduler);
+            
+            SkinRestorer.minecraftServer = server;
+        }
+        
+        public static void onServerStopped(MinecraftServer server) {
+            SkinRestorer.skinStorage = null;
+            SkinRestorer.tickedScheduler = null;
+            SkinRestorer.minecraftServer = null;
+        }
+        
+        public static void onCommandRegister(CommandDispatcher<CommandSourceStack> dispatcher) {
+            SkinCommand.register(dispatcher);
+        }
+        
+        public static void onPlayerDisconnect(ServerPlayer player) {
+            SkinRestorer.getSkinStorage().removeSkin(player.getUUID());
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/command/SkinCommand.java

@@ -0,0 +1,265 @@
+package net.lionarius.skinrestorer.command;
+
+import com.mojang.authlib.GameProfile;
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.arguments.StringArgumentType;
+import com.mojang.brigadier.builder.ArgumentBuilder;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import com.mojang.brigadier.builder.RequiredArgumentBuilder;
+import com.mojang.brigadier.context.CommandContext;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.SkinValue;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.skin.provider.MojangSkinProvider;
+import net.lionarius.skinrestorer.skin.provider.SkinProvider;
+import net.lionarius.skinrestorer.skin.provider.SkinProviderContext;
+import net.lionarius.skinrestorer.translation.Translation;
+import net.lionarius.skinrestorer.util.PlayerUtils;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.arguments.GameProfileArgument;
+import net.minecraft.server.level.ServerPlayer;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+import static net.minecraft.commands.Commands.argument;
+import static net.minecraft.commands.Commands.literal;
+
+public final class SkinCommand {
+    
+    private SkinCommand() {}
+    
+    public static void register(CommandDispatcher<CommandSourceStack> dispatcher) {
+        var base =
+                literal("skin")
+                        .then(buildSetSubcommand("clear", SkinValue.EMPTY::toProviderContext))
+                        .then(literal("reset")
+                                .executes(context -> resetSubcommand(context.getSource()))
+                                .then(makeTargetsArgument(
+                                        (context, profiles) -> resetSubcommand(context.getSource(), profiles, true)
+                                )))
+                        .then(literal("refresh").executes(context -> refreshSubcommand(context.getSource())));
+        
+        var set = literal("set");
+        
+        var providers = SkinRestorer.getProvidersRegistry().getPublicProviders();
+        for (var entry : providers)
+            set.then(buildSetSubcommand(entry.first(), entry.second()));
+        if (!providers.isEmpty())
+            base.then(set);
+        
+        base.then(
+                literal("config")
+                        .requires(commandSourceStack -> commandSourceStack.hasPermission(4))
+                        .then(literal("reload").executes(SkinCommand::configReloadSubcommand))
+        );
+        
+        dispatcher.register(base);
+    }
+    
+    private static int refreshSubcommand(
+            CommandSourceStack src
+    ) {
+        var player = src.getPlayer();
+        if (player == null)
+            return 0;
+        
+        var profile = player.getGameProfile();
+        
+        SkinProviderContext context = null;
+        var save = true;
+        if (!SkinRestorer.getSkinStorage().hasSavedSkin(profile.getId())) {
+            if (profile.getProperties().containsKey(PlayerUtils.TEXTURES_KEY)) {
+                save = false;
+                context = MojangSkinProvider.skinProviderContextFromProfile(profile);
+            }
+        } else {
+            context = SkinRestorer.getSkinStorage().getSkin(profile.getId()).toProviderContext();
+        }
+        
+        if (context == null)
+            return 0;
+        
+        return SkinCommand.setSubcommand(src, Collections.singleton(profile), context, save, false);
+    }
+    
+    private static int resetSubcommand(
+            CommandSourceStack src,
+            Collection<GameProfile> targets,
+            boolean setByOperator
+    ) {
+        var updatedPlayers = new HashSet<ServerPlayer>();
+        for (var profile : targets) {
+            SkinValue skin = null;
+            if (SkinRestorer.getSkinStorage().hasSavedSkin(profile.getId()))
+                skin = SkinRestorer.getSkinStorage().getSkin(profile.getId()).replaceValueWithOriginal();
+            
+            if (skin == null)
+                continue;
+            
+            var updatedPlayer = SkinRestorer.applySkin(src.getServer(), Collections.singleton(profile), skin, false);
+            SkinRestorer.getSkinStorage().deleteSkin(profile.getId());
+            
+            updatedPlayers.addAll(updatedPlayer);
+        }
+        
+        SkinCommand.sendResponse(src, updatedPlayers, setByOperator);
+        
+        return targets.size();
+    }
+    
+    private static int resetSubcommand(
+            CommandSourceStack src
+    ) {
+        if (src.getPlayer() == null)
+            return 0;
+        
+        return resetSubcommand(src, Collections.singleton(src.getPlayer().getGameProfile()), false);
+    }
+    
+    private static int setSubcommand(
+            CommandSourceStack src,
+            Collection<GameProfile> targets,
+            SkinProviderContext context,
+            boolean save,
+            boolean setByOperator
+    ) {
+        src.sendSystemMessage(Translation.translatableWithFallback(Translation.COMMAND_SKIN_LOADING_KEY));
+        
+        SkinRestorer.setSkinAsync(src.getServer(), targets, context, save).thenAccept(result -> {
+            if (result.isError()) {
+                src.sendFailure(Translation.translatableWithFallback(
+                        Translation.COMMAND_SKIN_FAILED_KEY,
+                        result.getErrorValue()
+                ));
+                return;
+            }
+            
+            var updatedPlayers = result.getSuccessValue();
+            
+            SkinCommand.sendResponse(src, updatedPlayers, setByOperator);
+        });
+        
+        return targets.size();
+    }
+    
+    private static int setSubcommand(
+            CommandSourceStack src,
+            Collection<GameProfile> targets,
+            SkinProviderContext context,
+            boolean setByOperator
+    ) {
+        return SkinCommand.setSubcommand(src, targets, context, true, setByOperator);
+    }
+    
+    private static int setSubcommand(
+            CommandSourceStack src,
+            SkinProviderContext context
+    ) {
+        if (src.getPlayer() == null)
+            return 0;
+        
+        return setSubcommand(src, Collections.singleton(src.getPlayer().getGameProfile()), context, false);
+    }
+    
+    private static int configReloadSubcommand(CommandContext<CommandSourceStack> context) {
+        SkinRestorer.reloadConfig();
+        
+        context.getSource().sendSuccess(() -> Translation.translatableWithFallback(
+                Translation.COMMAND_SKIN_CONFIG_RELOADED_KEY
+        ), true);
+        
+        return 0;
+    }
+    
+    private static void sendResponse(CommandSourceStack src, Collection<ServerPlayer> updatedPlayers, boolean setByOperator) {
+        if (updatedPlayers.isEmpty()) {
+            src.sendSuccess(() -> Translation.translatableWithFallback(
+                    Translation.COMMAND_SKIN_NO_CHANGES_KEY
+            ), true);
+            return;
+        }
+        
+        if (setByOperator) {
+            var playersComponent = PlayerUtils.createPlayerListComponent(updatedPlayers);
+            
+            src.sendSuccess(() -> Translation.translatableWithFallback(
+                    Translation.COMMAND_SKIN_AFFECTED_PLAYERS_KEY,
+                    playersComponent
+            ), true);
+        } else {
+            src.sendSuccess(() -> Translation.translatableWithFallback(
+                    Translation.COMMAND_SKIN_OK_KEY
+            ), true);
+        }
+    }
+    
+    private static LiteralArgumentBuilder<CommandSourceStack> buildSetSubcommand(String name, SkinProvider provider) {
+        var action = literal(name);
+        
+        if (provider.hasVariantSupport()) {
+            for (SkinVariant variant : SkinVariant.values()) {
+                action.then(
+                        literal(variant.toString())
+                                .then(buildSetSubcommandArgument(
+                                        argument(provider.getArgumentName(), StringArgumentType.string()),
+                                        context -> {
+                                            var argument = StringArgumentType.getString(context, provider.getArgumentName());
+                                            return new SkinProviderContext(name, argument, variant);
+                                        }
+                                ))
+                );
+            }
+        } else {
+            action.then(
+                    buildSetSubcommandArgument(
+                            argument(provider.getArgumentName(), StringArgumentType.string()),
+                            context -> {
+                                var argument = StringArgumentType.getString(context, provider.getArgumentName());
+                                return new SkinProviderContext(name, argument, null);
+                            }
+                    )
+            );
+        }
+        
+        return action;
+    }
+    
+    private static ArgumentBuilder<CommandSourceStack, LiteralArgumentBuilder<CommandSourceStack>> buildSetSubcommand(
+            String name,
+            Supplier<SkinProviderContext> supplier
+    ) {
+        return buildSetSubcommandArgument(literal(name), context -> supplier.get());
+    }
+    
+    private static <T extends ArgumentBuilder<CommandSourceStack, T>> ArgumentBuilder<CommandSourceStack, T> buildSetSubcommandArgument(
+            ArgumentBuilder<CommandSourceStack, T> argument,
+            Function<CommandContext<CommandSourceStack>, SkinProviderContext> provider
+    ) {
+        return argument
+                .executes(context -> setSubcommand(
+                        context.getSource(),
+                        provider.apply(context)
+                ))
+                .then(makeTargetsArgument(
+                        (context, targets) -> setSubcommand(
+                                context.getSource(),
+                                targets,
+                                provider.apply(context),
+                                true
+                        )
+                ));
+    }
+    
+    private static RequiredArgumentBuilder<CommandSourceStack, GameProfileArgument.Result> makeTargetsArgument(
+            BiFunction<CommandContext<CommandSourceStack>, Collection<GameProfile>, Integer> consumer
+    ) {
+        return argument("targets", GameProfileArgument.gameProfile())
+                .requires(source -> source.hasPermission(2))
+                .executes(context -> consumer.apply(context, GameProfileArgument.getGameProfiles(context, "targets")));
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/compat/skinshuffle/SkinShuffleCompatibility.java

@@ -0,0 +1,55 @@
+package net.lionarius.skinrestorer.compat.skinshuffle;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.platform.Services;
+import net.lionarius.skinrestorer.skin.SkinValue;
+import net.lionarius.skinrestorer.skin.provider.SkinShuffleSkinProvider;
+import net.lionarius.skinrestorer.util.PlayerUtils;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerPlayer;
+
+import java.util.Collections;
+
+public class SkinShuffleCompatibility {
+    
+    public static final String MOD_ID = "skinshuffle";
+    
+    private static final boolean SHOULD_APPLY = !Services.PLATFORM.isModLoaded(SkinShuffleCompatibility.MOD_ID);
+    
+    private SkinShuffleCompatibility() {}
+    
+    public static boolean shouldApply() {
+        return SkinShuffleCompatibility.SHOULD_APPLY;
+    }
+    
+    public static ResourceLocation resourceLocation(String name) {
+        return new ResourceLocation(SkinShuffleCompatibility.MOD_ID, name);
+    }
+    
+    public static void onPlayerJoin(ServerPlayer player) {
+        Services.COMPATIBILITY.skinShuffle_sendHandshake(player);
+    }
+    
+    public static void handleSkinRefresh(MinecraftServer server, ServerPlayer player, SkinShuffleSkinRefreshPayload payload) {
+        var property = payload.textureProperty();
+        
+        if (!property.name().equals(PlayerUtils.TEXTURES_KEY))
+            return;
+        
+        if (!property.hasSignature())
+            return;
+        
+        server.execute(() -> {
+            SkinRestorer.applySkin(
+                    server,
+                    Collections.singleton(player.getGameProfile()),
+                    new SkinValue(SkinShuffleSkinProvider.PROVIDER_NAME, null, null, property),
+                    !server.usesAuthentication()
+            );
+            
+            if (server.usesAuthentication() && SkinRestorer.getSkinStorage().hasSavedSkin(player.getUUID()))
+                SkinRestorer.getSkinStorage().deleteSkin(player.getUUID());
+        });
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/compat/skinshuffle/SkinShuffleHandshakePayload.java

@@ -0,0 +1,23 @@
+package net.lionarius.skinrestorer.compat.skinshuffle;
+
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+import org.jetbrains.annotations.NotNull;
+
+public record SkinShuffleHandshakePayload() implements CustomPacketPayload {
+
+    public static final SkinShuffleHandshakePayload INSTANCE = new SkinShuffleHandshakePayload();
+
+    public static final ResourceLocation PACKET_ID = SkinShuffleCompatibility.resourceLocation("handshake");
+
+    @Override
+    public void write(@NotNull FriendlyByteBuf buf) {
+        // NO-OP
+    }
+    
+    @Override
+    public @NotNull ResourceLocation id() {
+        return PACKET_ID;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/compat/skinshuffle/SkinShuffleSkinRefreshPayload.java

@@ -0,0 +1,7 @@
+package net.lionarius.skinrestorer.compat.skinshuffle;
+
+import com.mojang.authlib.properties.Property;
+
+public interface SkinShuffleSkinRefreshPayload {
+    Property textureProperty();
+}

common/src/main/java/net/lionarius/skinrestorer/compat/skinshuffle/SkinShuffleSkinRefreshV1Payload.java

@@ -0,0 +1,35 @@
+package net.lionarius.skinrestorer.compat.skinshuffle;
+
+import com.mojang.authlib.properties.Property;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+import org.jetbrains.annotations.NotNull;
+
+public record SkinShuffleSkinRefreshV1Payload(
+        Property textureProperty) implements CustomPacketPayload, SkinShuffleSkinRefreshPayload {
+    
+    public static final ResourceLocation PACKET_ID = SkinShuffleCompatibility.resourceLocation("refresh");
+    
+    public static void encode(FriendlyByteBuf buf, SkinShuffleSkinRefreshV1Payload value) {
+        var textureProperty = value.textureProperty();
+        
+        buf.writeUtf(textureProperty.name());
+        buf.writeUtf(textureProperty.value());
+        buf.writeNullable(textureProperty.signature(), FriendlyByteBuf::writeUtf);
+    }
+    
+    public static SkinShuffleSkinRefreshV1Payload decode(FriendlyByteBuf buf) {
+        return new SkinShuffleSkinRefreshV1Payload(new Property(buf.readUtf(), buf.readUtf(), buf.readNullable(FriendlyByteBuf::readUtf)));
+    }
+    
+    @Override
+    public void write(@NotNull FriendlyByteBuf buf) {
+        encode(buf, this);
+    }
+    
+    @Override
+    public @NotNull ResourceLocation id() {
+        return PACKET_ID;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/compat/skinshuffle/SkinShuffleSkinRefreshV2Payload.java

@@ -0,0 +1,43 @@
+package net.lionarius.skinrestorer.compat.skinshuffle;
+
+import com.mojang.authlib.properties.Property;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+import org.jetbrains.annotations.NotNull;
+
+public record SkinShuffleSkinRefreshV2Payload(
+        Property textureProperty) implements CustomPacketPayload, SkinShuffleSkinRefreshPayload {
+    
+    public static final ResourceLocation PACKET_ID = SkinShuffleCompatibility.resourceLocation("skin_refresh");
+
+    public static void encode(FriendlyByteBuf buf, SkinShuffleSkinRefreshV2Payload value) {
+        var textureProperty = value.textureProperty();
+        
+        buf.writeBoolean(textureProperty.hasSignature());
+        buf.writeUtf(textureProperty.name());
+        buf.writeUtf(textureProperty.value());
+        if (textureProperty.hasSignature()) {
+            assert textureProperty.signature() != null;
+            
+            buf.writeUtf(textureProperty.signature());
+        }
+    }
+
+    public static SkinShuffleSkinRefreshV2Payload decode(FriendlyByteBuf buf) {
+        if (buf.readBoolean()) {
+            return new SkinShuffleSkinRefreshV2Payload(new Property(buf.readUtf(), buf.readUtf(), buf.readUtf()));
+        }
+        return new SkinShuffleSkinRefreshV2Payload(new Property(buf.readUtf(), buf.readUtf(), null));
+    }
+    
+    @Override
+    public void write(@NotNull FriendlyByteBuf buf) {
+        encode(buf, this);
+    }
+    
+    @Override
+    public @NotNull ResourceLocation id() {
+        return PACKET_ID;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/Config.java

@@ -0,0 +1,131 @@
+package net.lionarius.skinrestorer.config;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.provider.ProvidersConfig;
+import net.lionarius.skinrestorer.util.FileUtils;
+import net.lionarius.skinrestorer.util.JsonUtils;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+
+import java.nio.file.Path;
+import java.util.Optional;
+
+public final class Config implements GsonPostProcessable {
+    
+    public static final String CONFIG_FILENAME = "config.json";
+    
+    
+    private String language = "en_us";
+    
+    private boolean refreshSkinOnJoin = true;
+    
+    private int skinApplyDelayOnJoin = 0;
+    
+    private boolean fetchSkinOnFirstJoin = true;
+    
+    private boolean forceFirstJoinSkinFetch = false;
+    
+    private FirstJoinSkinProvider firstJoinSkinProvider = FirstJoinSkinProvider.MOJANG;
+    
+    private String proxy = "";
+    private transient Proxy parsedProxy = null;
+    
+    private long requestTimeout = 10;
+    
+    private ProvidersConfig providers = ProvidersConfig.DEFAULT;
+    
+    public String language() {
+        return this.language;
+    }
+    
+    public boolean refreshSkinOnJoin() {
+        return this.refreshSkinOnJoin;
+    }
+    
+    public int skinApplyDelayOnJoin() {
+        return this.skinApplyDelayOnJoin;
+    }
+    
+    public boolean fetchSkinOnFirstJoin() {
+        return this.fetchSkinOnFirstJoin;
+    }
+    
+    public boolean forceFirstJoinSkinFetch() {
+        return this.forceFirstJoinSkinFetch;
+    }
+    
+    public FirstJoinSkinProvider firstJoinSkinProvider() {
+        return this.firstJoinSkinProvider;
+    }
+    
+    public Optional<Proxy> proxy() {
+        return Optional.ofNullable(this.parsedProxy);
+    }
+    
+    public long requestTimeout() {
+        return this.requestTimeout;
+    }
+    
+    public ProvidersConfig providersConfig() {
+        return this.providers;
+    }
+    
+    public static Config load(Path path) {
+        var configFile = path.resolve(Config.CONFIG_FILENAME);
+        
+        Config config = null;
+        try {
+            config = JsonUtils.fromJson(FileUtils.readFile(configFile), Config.class);
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.warn("Could not load config", e);
+        }
+        
+        if (config == null)
+            config = new Config();
+        
+        FileUtils.writeFile(path.resolve(Config.CONFIG_FILENAME), JsonUtils.toJson(config));
+        
+        return config;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.language == null || this.language.isEmpty()) {
+            SkinRestorer.LOGGER.warn("Language config is null or empty, defaulting to 'en_us'");
+            this.language = "en_us";
+        }
+        
+        if (this.skinApplyDelayOnJoin < 0) {
+            SkinRestorer.LOGGER.warn("SkinApplyDelayOnJoin config is less than 0, defaulting to 0");
+            this.skinApplyDelayOnJoin = 0;
+        }
+        
+        if (this.firstJoinSkinProvider == null) {
+            SkinRestorer.LOGGER.warn("FirstJoinSkinProvider config is null, defaulting to MOJANG");
+            this.firstJoinSkinProvider = FirstJoinSkinProvider.MOJANG;
+        }
+        
+        if (this.proxy == null) {
+            SkinRestorer.LOGGER.warn("Proxy config is null, defaulting to an empty string");
+            this.proxy = "";
+        }
+        
+        if (!this.proxy.isEmpty()) {
+            try {
+                this.parsedProxy = Proxy.parse(this.proxy);
+            } catch (Exception e) {
+                SkinRestorer.LOGGER.warn("Could not parse proxy config: {}", e.getMessage());
+                this.parsedProxy = null;
+            }
+        }
+        
+        if (this.requestTimeout <= 0) {
+            SkinRestorer.LOGGER.warn("Request timeout config is less than or equal to 0, defaulting to 10");
+            this.requestTimeout = 10;
+        }
+        
+        if (this.providers == null) {
+            SkinRestorer.LOGGER.warn("Providers config is null, using default");
+            this.providers = ProvidersConfig.DEFAULT;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/FirstJoinSkinProvider.java

@@ -0,0 +1,25 @@
+package net.lionarius.skinrestorer.config;
+
+import com.google.gson.annotations.SerializedName;
+import net.lionarius.skinrestorer.skin.provider.CollectionSkinProvider;
+import net.lionarius.skinrestorer.skin.provider.ElyBySkinProvider;
+import net.lionarius.skinrestorer.skin.provider.MojangSkinProvider;
+
+public enum FirstJoinSkinProvider {
+    @SerializedName(value = "MOJANG", alternate = {"mojang"})
+    MOJANG(MojangSkinProvider.PROVIDER_NAME),
+    @SerializedName(value = "ELY.BY", alternate = {"ely.by", "ELY_BY", "ely_by"})
+    ELY_BY(ElyBySkinProvider.PROVIDER_NAME),
+    @SerializedName(value = "COLLECTION", alternate = {"collection"})
+    COLLECTION(CollectionSkinProvider.PROVIDER_NAME);
+    
+    private final String name;
+    
+    FirstJoinSkinProvider(String name) {
+        this.name = name;
+    }
+    
+    public String getName() {
+        return this.name;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/Proxy.java

@@ -0,0 +1,21 @@
+package net.lionarius.skinrestorer.config;
+
+import org.jetbrains.annotations.NotNull;
+
+public record Proxy(@NotNull String host, int port) {
+    
+    public static Proxy parse(@NotNull String proxy) {
+        var colonIndex = proxy.lastIndexOf(':');
+        if (colonIndex == -1)
+            throw new IllegalArgumentException("no port in hostname");
+        
+        var port = Integer.parseInt(proxy.substring(colonIndex + 1));
+        
+        if (port < 0 || port > 0xFFFF)
+            throw new IllegalArgumentException("port out of range: " + port);
+        
+        var host = proxy.substring(0, colonIndex);
+        
+        return new Proxy(host, port);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/BuiltInProviderConfig.java

@@ -0,0 +1,47 @@
+package net.lionarius.skinrestorer.config.provider;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+
+public abstract class BuiltInProviderConfig implements GsonPostProcessable {
+    protected boolean enabled;
+    protected String name;
+    protected CacheConfig cache;
+    
+    
+    public BuiltInProviderConfig(String name, CacheConfig cache) {
+        this(name, cache, true);
+    }
+    
+    public BuiltInProviderConfig(String name, CacheConfig cache, boolean enabled) {
+        this.enabled = enabled;
+        this.name = name;
+        this.cache = cache;
+    }
+    
+    public boolean enabled() {
+        return enabled;
+    }
+    
+    public String name() {
+        return name;
+    }
+    
+    public CacheConfig cache() {
+        return cache;
+    }
+    
+    protected void validate(String defaultName, CacheConfig defaultCache) {
+        if (this.name == null || this.name.isEmpty()) {
+            SkinRestorer.LOGGER.warn("Provider name is null or empty, defaulting to '{}'", defaultName);
+            this.name = defaultName;
+        }
+        
+        if (this.cache == null) {
+            SkinRestorer.LOGGER.warn("Provider cache is null, using default");
+            this.cache = defaultCache;
+        } else {
+            this.cache.validate(defaultCache);
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/CacheConfig.java

@@ -0,0 +1,28 @@
+package net.lionarius.skinrestorer.config.provider;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+
+public final class CacheConfig {
+    private boolean enabled;
+    private long duration;
+    
+    public CacheConfig(boolean enabled, long duration) {
+        this.enabled = enabled;
+        this.duration = duration;
+    }
+    
+    public boolean enabled() {
+        return enabled;
+    }
+    
+    public long duration() {
+        return duration;
+    }
+    
+    void validate(CacheConfig defaultValue) {
+        if (this.duration <= 0) {
+            SkinRestorer.LOGGER.warn("Cache duration is less than or equal to zero, defaulting to {}", defaultValue.duration());
+            this.duration = defaultValue.duration();
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/ElyByProviderConfig.java

@@ -0,0 +1,16 @@
+package net.lionarius.skinrestorer.config.provider;
+
+import net.lionarius.skinrestorer.skin.provider.ElyBySkinProvider;
+
+public final class ElyByProviderConfig extends BuiltInProviderConfig {
+    private static final CacheConfig DEFAULT_CACHE_VALUE = new CacheConfig(true, 60);
+    
+    public ElyByProviderConfig() {
+        super(ElyBySkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE);
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        super.validate(ElyBySkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/MineskinProviderConfig.java

@@ -0,0 +1,30 @@
+package net.lionarius.skinrestorer.config.provider;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.provider.MineskinSkinProvider;
+
+public final class MineskinProviderConfig extends BuiltInProviderConfig {
+    private static final CacheConfig DEFAULT_CACHE_VALUE = new CacheConfig(true, 300);
+    
+    private String apiKey;
+    
+    public MineskinProviderConfig() {
+        super(MineskinSkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE);
+        
+        this.apiKey = "";
+    }
+    
+    public String apiKey() {
+        return apiKey;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        super.validate(MineskinSkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE);
+        
+        if (this.apiKey == null) {
+            SkinRestorer.LOGGER.warn("Mineskin API key is null, defaulting to an empty string");
+            this.apiKey = "";
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/MojangProviderConfig.java

@@ -0,0 +1,16 @@
+package net.lionarius.skinrestorer.config.provider;
+
+import net.lionarius.skinrestorer.skin.provider.MojangSkinProvider;
+
+public final class MojangProviderConfig extends BuiltInProviderConfig {
+    private static final CacheConfig DEFAULT_CACHE_VALUE = new CacheConfig(true, 60);
+    
+    public MojangProviderConfig() {
+        super(MojangSkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE);
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        super.validate(MojangSkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/ProvidersConfig.java

@@ -0,0 +1,65 @@
+package net.lionarius.skinrestorer.config.provider;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.provider.collection.CollectionProviderConfig;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+
+public final class ProvidersConfig implements GsonPostProcessable {
+    public static final ProvidersConfig DEFAULT = new ProvidersConfig(
+            new MojangProviderConfig(),
+            new ElyByProviderConfig(),
+            new MineskinProviderConfig(),
+            new CollectionProviderConfig()
+    );
+    
+    private MojangProviderConfig mojang;
+    private ElyByProviderConfig ely_by;
+    private MineskinProviderConfig mineskin;
+    private CollectionProviderConfig collection;
+    
+    public ProvidersConfig(MojangProviderConfig mojang, ElyByProviderConfig ely_by, MineskinProviderConfig mineskin, CollectionProviderConfig collection) {
+        this.mojang = mojang;
+        this.ely_by = ely_by;
+        this.mineskin = mineskin;
+        this.collection = collection;
+    }
+    
+    public MojangProviderConfig mojang() {
+        return this.mojang;
+    }
+    
+    public ElyByProviderConfig ely_by() {
+        return this.ely_by;
+    }
+    
+    public MineskinProviderConfig mineskin() {
+        return this.mineskin;
+    }
+    
+    public CollectionProviderConfig collection() {
+        return this.collection;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.mojang == null) {
+            SkinRestorer.LOGGER.warn("Mojang provider config is null, using default");
+            this.mojang = ProvidersConfig.DEFAULT.mojang();
+        }
+        
+        if (this.ely_by == null) {
+            SkinRestorer.LOGGER.warn("Ely.By provider config is null, using default");
+            this.ely_by = ProvidersConfig.DEFAULT.ely_by();
+        }
+        
+        if (this.mineskin == null) {
+            SkinRestorer.LOGGER.warn("Mineskin provider config is null, using default");
+            this.mineskin = ProvidersConfig.DEFAULT.mineskin();
+        }
+        
+        if (this.collection == null) {
+            SkinRestorer.LOGGER.warn("Collection provider config is null, using default");
+            this.collection = ProvidersConfig.DEFAULT.collection();
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionProviderConfig.java

@@ -0,0 +1,32 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import com.google.gson.annotations.JsonAdapter;
+import net.lionarius.skinrestorer.config.provider.BuiltInProviderConfig;
+import net.lionarius.skinrestorer.config.provider.CacheConfig;
+import net.lionarius.skinrestorer.skin.provider.CollectionSkinProvider;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public final class CollectionProviderConfig extends BuiltInProviderConfig implements GsonPostProcessable {
+    private static final CacheConfig DEFAULT_CACHE_VALUE = new CacheConfig(true, 604800);
+    
+    @JsonAdapter(CollectionSkinSourceListDeserializer.class)
+    private List<CollectionSkinSource> sources = new ArrayList<>();
+    
+    public CollectionProviderConfig() {
+        super(CollectionSkinProvider.PROVIDER_NAME, DEFAULT_CACHE_VALUE, false);
+    }
+    
+    public List<CollectionSkinSource> sources() {
+        return this.sources;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.sources == null) {
+            this.sources = new ArrayList<>();
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinFile.java

@@ -0,0 +1,60 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public final class CollectionSkinFile implements CollectionSkinSource, GsonPostProcessable {
+    private String path = "";
+    private SkinVariant variant = SkinVariant.CLASSIC;
+    
+    @Override
+    public @Nullable URI uri() {
+        if (this.path.isEmpty())
+            return null;
+        
+        try {
+            var filePath = SkinRestorer.getConfigDir().resolve(this.path);
+            
+            if (!Files.exists(filePath)) {
+                SkinRestorer.LOGGER.warn("Skin file does not exist: {}", this.path);
+                return null;
+            }
+            
+            if (!Files.isRegularFile(filePath)) {
+                SkinRestorer.LOGGER.warn("Skin path is not a file: {}", this.path);
+                return null;
+            }
+            
+            if (!this.path.toLowerCase().endsWith(".png")) {
+                SkinRestorer.LOGGER.warn("Skin file is not a PNG file: {}", this.path);
+                return null;
+            }
+            
+            return filePath.toUri();
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.warn("Invalid file path: {}", this.path, e);
+            return null;
+        }
+    }
+    
+    @Override
+    public SkinVariant variant() {
+        return this.variant;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.path == null) {
+            this.path = "";
+        }
+        if (this.variant == null) {
+            this.variant = SkinVariant.CLASSIC;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinSource.java

@@ -0,0 +1,12 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+
+public interface CollectionSkinSource {
+    @Nullable URI uri();
+    
+    SkinVariant variant();
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinSourceListDeserializer.java

@@ -0,0 +1,35 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import com.google.gson.*;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+
+public class CollectionSkinSourceListDeserializer implements JsonSerializer<List<CollectionSkinSource>>, JsonDeserializer<List<CollectionSkinSource>> {
+    @Override
+    public JsonElement serialize(List<CollectionSkinSource> src, Type typeOfT, JsonSerializationContext context) {
+        return context.serialize(src, List.class);
+    }
+    
+    @Override
+    public List<CollectionSkinSource> deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
+            throws JsonParseException {
+        List<CollectionSkinSource> sources = new ArrayList<>();
+        
+        if (json.isJsonArray()) {
+            for (JsonElement element : json.getAsJsonArray()) {
+                if (element.isJsonObject()) {
+                    JsonObject obj = element.getAsJsonObject();
+                    if (obj.has("url")) {
+                        sources.add(context.deserialize(obj, CollectionSkinUrl.class));
+                    } else if (obj.has("path")) {
+                        sources.add(context.deserialize(obj, CollectionSkinFile.class));
+                    }
+                }
+            }
+        }
+        
+        return sources;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/config/provider/collection/CollectionSkinUrl.java

@@ -0,0 +1,41 @@
+package net.lionarius.skinrestorer.config.provider.collection;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+
+public final class CollectionSkinUrl implements CollectionSkinSource, GsonPostProcessable {
+    private String url = "";
+    private SkinVariant variant = SkinVariant.CLASSIC;
+    
+    @Override
+    public @Nullable URI uri() {
+        try {
+            if (this.url.isEmpty())
+                return null;
+            
+            return new URI(this.url);
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.warn("Invalid URI: {}", this.url, e);
+            return null;
+        }
+    }
+    
+    @Override
+    public SkinVariant variant() {
+        return this.variant;
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        if (this.url == null) {
+            this.url = "";
+        }
+        if (this.variant == null) {
+            this.variant = SkinVariant.CLASSIC;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/exception/TransparentException.java

@@ -0,0 +1,19 @@
+package net.lionarius.skinrestorer.exception;
+
+import org.jetbrains.annotations.NotNull;
+
+public class TransparentException extends RuntimeException {
+    public TransparentException(@NotNull Throwable cause) {
+        super(cause);
+    }
+    
+    @Override
+    public String getMessage() {
+        return this.getCause().getMessage();
+    }
+    
+    @Override
+    public String toString() {
+        return this.getLocalizedMessage();
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/mineskin/Java11RequestHandler.java

@@ -0,0 +1,190 @@
+package net.lionarius.skinrestorer.mineskin;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParseException;
+import org.mineskin.MineSkinClientImpl;
+import org.mineskin.data.CodeAndMessage;
+import org.mineskin.exception.MineSkinRequestException;
+import org.mineskin.exception.MineskinException;
+import org.mineskin.request.RequestHandler;
+import org.mineskin.response.MineSkinResponse;
+import org.mineskin.response.ResponseConstructor;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.InetSocketAddress;
+import java.net.ProxySelector;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.net.http.HttpResponse;
+import java.net.http.HttpResponse.BodyHandlers;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.stream.Collectors;
+
+// copy-pasted from https://github.com/InventivetalentDev/MineskinClient/blob/master/java11/src/main/java/org/mineskin/Java11RequestHandler.java
+// with some modifications to support proxy
+public class Java11RequestHandler extends RequestHandler {
+    
+    private final Gson gson;
+    private final HttpClient httpClient;
+    
+    public Java11RequestHandler(String baseUrl, String userAgent, String apiKey, int timeout, Gson gson, InetSocketAddress proxy) {
+        super(baseUrl, userAgent, apiKey, timeout, gson);
+        this.gson = gson;
+        
+        HttpClient.Builder clientBuilder = HttpClient.newBuilder()
+                .connectTimeout(java.time.Duration.ofMillis(timeout));
+        
+        if (userAgent != null) {
+            clientBuilder.followRedirects(HttpClient.Redirect.NORMAL);
+        }
+        
+        if (proxy != null) {
+            clientBuilder.proxy(ProxySelector.of(proxy));
+        }
+        
+        this.httpClient = clientBuilder.build();
+    }
+    
+    private <T, R extends MineSkinResponse<T>> R wrapResponse(HttpResponse<String> response, Class<T> clazz, ResponseConstructor<T, R> constructor)
+            throws IOException {
+        String rawBody = response.body();
+        try {
+            JsonObject jsonBody = gson.fromJson(rawBody, JsonObject.class);
+            R wrapped = constructor.construct(
+                    response.statusCode(),
+                    lowercaseHeaders(response.headers().map()),
+                    jsonBody,
+                    gson, clazz
+            );
+            if (!wrapped.isSuccess()) {
+                throw new MineSkinRequestException(
+                        wrapped.getFirstError().map(CodeAndMessage::code).orElse("request_failed"),
+                        wrapped.getFirstError().map(CodeAndMessage::message).orElse("Request Failed"),
+                        wrapped
+                );
+            }
+            return wrapped;
+        } catch (JsonParseException e) {
+            MineSkinClientImpl.LOGGER.log(Level.WARNING, "Failed to parse response body: " + rawBody, e);
+            throw new MineskinException("Failed to parse response", e);
+        }
+    }
+    
+    private Map<String, String> lowercaseHeaders(Map<String, java.util.List<String>> headers) {
+        return headers.entrySet().stream()
+                .collect(Collectors.toMap(
+                        entry -> entry.getKey().toLowerCase(),
+                        entry -> String.join(", ", entry.getValue())
+                ));
+    }
+    
+    public <T, R extends MineSkinResponse<T>> R getJson(String url, Class<T> clazz, ResponseConstructor<T, R> constructor)
+            throws IOException {
+        url = this.baseUrl + url;
+        MineSkinClientImpl.LOGGER.fine("GET " + url);
+        
+        HttpRequest.Builder requestBuilder = HttpRequest.newBuilder()
+                .uri(URI.create(url))
+                .GET()
+                .header("User-Agent", this.userAgent);
+        HttpRequest request;
+        if (apiKey != null) {
+            request = requestBuilder
+                    .header("Authorization", "Bearer " + apiKey)
+                    .header("Accept", "application/json").build();
+        } else {
+            request = requestBuilder.build();
+        }
+        HttpResponse<String> response;
+        try {
+            response = this.httpClient.send(request, BodyHandlers.ofString());
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+        return wrapResponse(response, clazz, constructor);
+    }
+    
+    public <T, R extends MineSkinResponse<T>> R postJson(String url, JsonObject data, Class<T> clazz, ResponseConstructor<T, R> constructor)
+            throws IOException {
+        url = this.baseUrl + url;
+        MineSkinClientImpl.LOGGER.fine("POST " + url);
+        
+        HttpRequest.Builder requestBuilder = HttpRequest.newBuilder()
+                .uri(URI.create(url))
+                .POST(BodyPublishers.ofString(gson.toJson(data)))
+                .header("Content-Type", "application/json")
+                .header("User-Agent", this.userAgent);
+        HttpRequest request;
+        if (apiKey != null) {
+            request = requestBuilder
+                    .header("Authorization", "Bearer " + apiKey)
+                    .header("Accept", "application/json").build();
+        } else {
+            request = requestBuilder.build();
+        }
+        
+        HttpResponse<String> response;
+        try {
+            response = this.httpClient.send(request, BodyHandlers.ofString());
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+        return wrapResponse(response, clazz, constructor);
+    }
+    
+    public <T, R extends MineSkinResponse<T>> R postFormDataFile(String url, String key, String filename, InputStream in, Map<String, String> data, Class<T> clazz, ResponseConstructor<T, R> constructor)
+            throws IOException {
+        url = this.baseUrl + url;
+        MineSkinClientImpl.LOGGER.fine("POST " + url);
+        
+        String boundary = "mineskin-" + System.currentTimeMillis();
+        StringBuilder bodyBuilder = new StringBuilder();
+        
+        // add form fields
+        for (Map.Entry<String, String> entry : data.entrySet()) {
+            bodyBuilder.append("--").append(boundary).append("\r\n")
+                    .append("Content-Disposition: form-data; name=\"").append(entry.getKey()).append("\"\r\n\r\n")
+                    .append(entry.getValue()).append("\r\n");
+        }
+        
+        // add file
+        byte[] fileContent = in.readAllBytes();
+        bodyBuilder.append("--").append(boundary).append("\r\n")
+                .append("Content-Disposition: form-data; name=\"").append(key)
+                .append("\"; filename=\"").append(filename).append("\"\r\n")
+                .append("Content-Type: image/png\r\n\r\n");
+        byte[] bodyStart = bodyBuilder.toString().getBytes();
+        byte[] boundaryEnd = ("\r\n--" + boundary + "--\r\n").getBytes();
+        byte[] bodyString = new byte[bodyStart.length + fileContent.length + boundaryEnd.length];
+        System.arraycopy(bodyStart, 0, bodyString, 0, bodyStart.length);
+        System.arraycopy(fileContent, 0, bodyString, bodyStart.length, fileContent.length);
+        System.arraycopy(boundaryEnd, 0, bodyString, bodyStart.length + fileContent.length, boundaryEnd.length);
+        
+        HttpRequest.Builder requestBuilder = HttpRequest.newBuilder()
+                .uri(URI.create(url))
+                .POST(HttpRequest.BodyPublishers.ofByteArray(bodyString))
+                .header("Content-Type", "multipart/form-data; boundary=" + boundary)
+                .header("User-Agent", this.userAgent);
+        HttpRequest request;
+        if (apiKey != null) {
+            request = requestBuilder
+                    .header("Authorization", "Bearer " + apiKey)
+                    .header("Accept", "application/json").build();
+        } else {
+            request = requestBuilder.build();
+        }
+        
+        HttpResponse<String> response;
+        try {
+            response = this.httpClient.send(request, BodyHandlers.ofString());
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+        return wrapResponse(response, clazz, constructor);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/ChunkMapAccessor.java

@@ -0,0 +1,13 @@
+package net.lionarius.skinrestorer.mixin;
+
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import net.minecraft.server.level.ChunkMap;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(ChunkMap.class)
+public interface ChunkMapAccessor {
+    
+    @Accessor
+    Int2ObjectMap<TrackedEntityAccessorInvoker> getEntityMap();
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/GameProfileCacheAccessor.java

@@ -0,0 +1,14 @@
+package net.lionarius.skinrestorer.mixin;
+
+import net.minecraft.server.players.GameProfileCache;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.Map;
+
+@Mixin(GameProfileCache.class)
+public interface GameProfileCacheAccessor {
+    
+    @Accessor
+    Map<String, GameProfileCache.GameProfileInfo> getProfilesByName();
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/PlayerListMixin.java

@@ -0,0 +1,62 @@
+package net.lionarius.skinrestorer.mixin;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.minecraft.network.Connection;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.network.CommonListenerCookie;
+import net.minecraft.server.players.PlayerList;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.Collections;
+import java.util.List;
+
+@Mixin(PlayerList.class)
+public abstract class PlayerListMixin {
+    
+    @Shadow
+    public abstract List<ServerPlayer> getPlayers();
+    
+    @Shadow @Final
+    private MinecraftServer server;
+    
+    @Inject(method = "remove", at = @At("TAIL"))
+    private void remove(ServerPlayer player, CallbackInfo ci) {
+        SkinRestorer.Events.onPlayerDisconnect(player);
+    }
+    
+    @Inject(method = "removeAll", at = @At("HEAD"))
+    private void removeAll(CallbackInfo ci) {
+        for (var player : getPlayers()) {
+            SkinRestorer.Events.onPlayerDisconnect(player);
+        }
+    }
+    
+    @Inject(method = "placeNewPlayer", at = @At("HEAD"))
+    private void placeNewPlayer(Connection connection, ServerPlayer player, CommonListenerCookie cookie, CallbackInfo ci) {
+        var delay = SkinRestorer.getConfig().skinApplyDelayOnJoin();
+        
+        if (delay <= 0) {
+            skinrestorer$tryApplySkin(server, player);
+        } else {
+            var uuid = player.getUUID();
+            SkinRestorer.getTickedScheduler().schedule(() -> {
+                var actualPlayer = server.getPlayerList().getPlayer(uuid);
+                if (actualPlayer != null)
+                    skinrestorer$tryApplySkin(server, actualPlayer);
+            }, delay, uuid);
+        }
+    }
+    
+    @Unique
+    private static void skinrestorer$tryApplySkin(MinecraftServer server, ServerPlayer player) {
+        if (SkinRestorer.getSkinStorage().hasSavedSkin(player.getUUID()))
+            SkinRestorer.applySkin(server, Collections.singleton(player.getGameProfile()), SkinRestorer.getSkinStorage().getSkin(player.getUUID()));
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/ServerLoginPacketListenerImplMixin.java

@@ -0,0 +1,95 @@
+package net.lionarius.skinrestorer.mixin;
+
+import com.mojang.authlib.GameProfile;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.FirstJoinSkinProvider;
+import net.lionarius.skinrestorer.skin.SkinValue;
+import net.lionarius.skinrestorer.skin.provider.SkinProviderContext;
+import net.lionarius.skinrestorer.util.PlayerUtils;
+import net.lionarius.skinrestorer.util.Result;
+import net.minecraft.server.network.ServerLoginPacketListenerImpl;
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.concurrent.CompletableFuture;
+
+@Mixin(ServerLoginPacketListenerImpl.class)
+public abstract class ServerLoginPacketListenerImplMixin {
+    
+    @Shadow @Nullable
+    private GameProfile authenticatedProfile;
+    
+    @Unique
+    private CompletableFuture<Void> skinrestorer$pendingSkin;
+    
+    @Inject(method = "verifyLoginAndFinishConnectionSetup", at = @At(value = "INVOKE",
+                                                                     target = "Lnet/minecraft/server/players/PlayerList;canPlayerLogin(Ljava/net/SocketAddress;Lcom/mojang/authlib/GameProfile;)Lnet/minecraft/network/chat/Component;"),
+            cancellable = true)
+    public void waitForSkin(CallbackInfo ci) {
+        if (skinrestorer$pendingSkin == null) {
+            skinrestorer$pendingSkin = CompletableFuture.supplyAsync(() -> {
+                final var profile = authenticatedProfile;
+                
+                assert profile != null;
+                var originalSkin = PlayerUtils.getPlayerSkin(profile);
+                
+                if (SkinRestorer.getSkinStorage().hasSavedSkin(profile.getId())) {
+                    if (originalSkin != null) { // update to the latest official skin
+                        var value = SkinRestorer.getSkinStorage().getSkin(profile.getId());
+                        SkinRestorer.getSkinStorage().setSkin(profile.getId(), value.setOriginalValue(originalSkin));
+                    }
+                    
+                    if (SkinRestorer.getConfig().refreshSkinOnJoin()) {
+                        var currentSkin = SkinRestorer.getSkinStorage().getSkin(profile.getId());
+                        var context = currentSkin.toProviderContext();
+                        
+                        skinrestorer$fetchSkin(profile, context);
+                    }
+                    
+                    return null;
+                }
+                
+                var config = SkinRestorer.getConfig();
+                var provider = config.firstJoinSkinProvider();
+                
+                var shouldFetch = (originalSkin == null && config.fetchSkinOnFirstJoin()) ||
+                                      (originalSkin != null && config.forceFirstJoinSkinFetch() && provider != FirstJoinSkinProvider.MOJANG);
+                
+                if (shouldFetch) {
+                    var context = new SkinProviderContext(
+                            provider.getName(),
+                            profile.getName(),
+                            null
+                    );
+                    skinrestorer$fetchSkin(profile, context);
+                }
+                
+                return null;
+            });
+        }
+        
+        if (!skinrestorer$pendingSkin.isDone())
+            ci.cancel();
+    }
+    
+    @Unique
+    private static void skinrestorer$fetchSkin(GameProfile profile, SkinProviderContext context) {
+        SkinRestorer.LOGGER.debug("Fetching {}'s skin", profile.getName());
+        
+        var result = SkinRestorer.getProvider(context.name()).map(
+                provider -> provider.fetchSkin(context.argument(), context.variant())
+        ).orElseGet(() -> Result.error(new IllegalArgumentException("Skin provider is not registered: " + context.name())));
+        
+        if (!result.isError()) {
+            var value = SkinValue.fromProviderContextWithValue(context, result.getSuccessValue().orElse(null));
+            SkinRestorer.getSkinStorage().setSkin(profile.getId(), value);
+        } else {
+            SkinRestorer.LOGGER.warn("Failed to fetch skin '{}:{}'", context.name(), context.argument(), result.getErrorValue());
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/SkullBlockEntityMixin.java

@@ -0,0 +1,58 @@
+package net.lionarius.skinrestorer.mixin;
+
+import com.mojang.authlib.GameProfile;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.util.PlayerUtils;
+import net.minecraft.Util;
+import net.minecraft.server.Services;
+import net.minecraft.world.level.block.entity.SkullBlockEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.Locale;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.BooleanSupplier;
+
+@Mixin(SkullBlockEntity.class)
+public abstract class SkullBlockEntityMixin {
+    
+    @Inject(method = "loadProfile", at = @At("HEAD"),
+            cancellable = true)
+    private static void fetchProfileByName(String name, Services services, BooleanSupplier hasCache, CallbackInfoReturnable<CompletableFuture<Optional<GameProfile>>> cir) {
+        if (name == null)
+            return;
+        
+        var profileOpt = Optional.<GameProfile>empty();
+        var gameProfileInfo = ((GameProfileCacheAccessor) services.profileCache()).getProfilesByName().get(name.toLowerCase(Locale.ROOT));
+        
+        if (gameProfileInfo != null)
+            profileOpt = Optional.of(gameProfileInfo.getProfile());
+        
+        skinrestorer$replaceSkin(profileOpt, cir);
+    }
+    
+    @Unique
+    private static void skinrestorer$replaceSkin(Optional<GameProfile> profileOpt, CallbackInfoReturnable<CompletableFuture<Optional<GameProfile>>> cir) {
+        if (SkinRestorer.getMinecraftServer() == null)
+            return;
+        
+        if (profileOpt.isEmpty())
+            return;
+        
+        var profile = PlayerUtils.cloneGameProfile(profileOpt.get());
+        
+        if (SkinRestorer.getSkinStorage().hasSavedSkin(profile.getId())) {
+            cir.setReturnValue(CompletableFuture.supplyAsync(() -> {
+                var skin = SkinRestorer.getSkinStorage().getSkin(profile.getId(), false);
+                PlayerUtils.applyRestoredSkin(profile, skin.value());
+                
+                return Optional.of(profile);
+            }, Util.backgroundExecutor()));
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/mixin/TrackedEntityAccessorInvoker.java

@@ -0,0 +1,22 @@
+package net.lionarius.skinrestorer.mixin;
+
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.network.ServerPlayerConnection;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+import org.spongepowered.asm.mixin.gen.Invoker;
+
+import java.util.Set;
+
+@Mixin(targets = "net.minecraft.server.level.ChunkMap$TrackedEntity")
+public interface TrackedEntityAccessorInvoker {
+    
+    @Accessor
+    Set<ServerPlayerConnection> getSeenBy();
+    
+    @Invoker
+    void invokeRemovePlayer(ServerPlayer player);
+    
+    @Invoker
+    void invokeUpdatePlayer(ServerPlayer player);
+}

common/src/main/java/net/lionarius/skinrestorer/platform/Services.java

@@ -0,0 +1,23 @@
+package net.lionarius.skinrestorer.platform;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.platform.services.CompatibilityHelper;
+import net.lionarius.skinrestorer.platform.services.PlatformHelper;
+
+import java.util.ServiceLoader;
+
+public final class Services {
+    
+    public final static PlatformHelper PLATFORM = load(PlatformHelper.class);
+    public final static CompatibilityHelper COMPATIBILITY = load(CompatibilityHelper.class);
+    
+    private Services() {}
+    
+    private static <T> T load(Class<T> clazz) {
+        final T loadedService = ServiceLoader.load(clazz)
+                .findFirst()
+                .orElseThrow(() -> new NullPointerException("Failed to load service for " + clazz.getName()));
+        SkinRestorer.LOGGER.debug("Loaded {} for service {}", loadedService, clazz);
+        return loadedService;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/platform/services/CompatibilityHelper.java

@@ -0,0 +1,8 @@
+package net.lionarius.skinrestorer.platform.services;
+
+import net.minecraft.server.level.ServerPlayer;
+
+public interface CompatibilityHelper {
+    
+    void skinShuffle_sendHandshake(ServerPlayer player);
+}

common/src/main/java/net/lionarius/skinrestorer/platform/services/PlatformHelper.java

@@ -0,0 +1,12 @@
+package net.lionarius.skinrestorer.platform.services;
+
+import java.nio.file.Path;
+
+public interface PlatformHelper {
+    
+    String getPlatformName();
+    
+    boolean isModLoaded(String modId);
+    
+    Path getConfigDirectory();
+}

common/src/main/java/net/lionarius/skinrestorer/skin/SkinIO.java

@@ -0,0 +1,85 @@
+package net.lionarius.skinrestorer.skin;
+
+import com.mojang.authlib.properties.Property;
+import net.lionarius.skinrestorer.skin.provider.MineskinSkinProvider;
+import net.lionarius.skinrestorer.skin.provider.MojangSkinProvider;
+import net.lionarius.skinrestorer.util.FileUtils;
+import net.lionarius.skinrestorer.util.JsonUtils;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Objects;
+import java.util.UUID;
+
+public class SkinIO {
+    
+    public static final String FILE_EXTENSION = ".json";
+    
+    private final Path savePath;
+    
+    public SkinIO(Path savePath) {
+        this.savePath = savePath;
+    }
+    
+    public boolean skinExists(UUID uuid) {
+        return Files.exists(savePath.resolve(SkinIO.uuidToFilename(uuid)));
+    }
+    
+    public SkinValue loadSkin(UUID uuid) {
+        try {
+            return SkinIO.loadSkin(savePath.resolve(SkinIO.uuidToFilename(uuid)));
+        } catch (Exception e) {
+            return SkinValue.EMPTY;
+        }
+    }
+    
+    private static SkinValue loadSkin(Path file) {
+        var json = FileUtils.readFile(file);
+        try {
+            return JsonUtils.fromJson(json, SkinValue.class);
+        } catch (Exception e) {
+            var property = JsonUtils.fromJson(json, Property.class);
+            return SkinIO.convertFromOldFormat(property);
+        }
+    }
+    
+    public void saveSkin(UUID uuid, SkinValue skin) {
+        FileUtils.writeFile(savePath.resolve(SkinIO.uuidToFilename(uuid)), JsonUtils.toJson(skin));
+    }
+    
+    public void deleteSkin(UUID uuid) {
+        FileUtils.deleteFile(savePath.resolve(SkinIO.uuidToFilename(uuid)));
+    }
+    
+    private static String uuidToFilename(UUID uuid) {
+        return uuid + FILE_EXTENSION;
+    }
+    
+    private static SkinValue convertFromOldFormat(Property property) {
+        try {
+            var propertyJson = Objects.requireNonNull(JsonUtils.skinPropertyToJson(property));
+            var textures = propertyJson.getAsJsonObject("textures");
+            
+            var capeTexture = textures.getAsJsonObject("CAPE");
+            if (capeTexture != null) {
+                var profileName = propertyJson.get("profileName").getAsString();
+                return new SkinValue(MojangSkinProvider.PROVIDER_NAME, profileName, null, property);
+            }
+            
+            var skinTexture = textures.getAsJsonObject("SKIN");
+            var url = skinTexture.get("url").getAsString();
+            
+            var variant = SkinVariant.CLASSIC;
+            var metadata = skinTexture.getAsJsonObject("metadata");
+            if (metadata != null) {
+                var model = metadata.get("model");
+                if (model != null && "slim".equals(model.getAsString()))
+                    variant = SkinVariant.SLIM;
+            }
+            
+            return new SkinValue(MineskinSkinProvider.PROVIDER_NAME, url, variant, property);
+        } catch (Exception e) {
+            return SkinValue.EMPTY;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/SkinStorage.java

@@ -0,0 +1,60 @@
+package net.lionarius.skinrestorer.skin;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class SkinStorage {
+    
+    private final Map<UUID, SkinValue> skinMap = new ConcurrentHashMap<>();
+    private final SkinIO skinIO;
+    
+    public SkinStorage(SkinIO skinIO) {
+        this.skinIO = skinIO;
+    }
+    
+    public boolean hasSavedSkin(UUID uuid) {
+        return this.skinMap.containsKey(uuid) || this.skinIO.skinExists(uuid);
+    }
+    
+    public SkinValue getSkin(UUID uuid, boolean cache) {
+        if (!skinMap.containsKey(uuid)) {
+            var skin = skinIO.loadSkin(uuid);
+            if (!cache)
+                return skin;
+            
+            setSkin(uuid, skin);
+        }
+        
+        return skinMap.get(uuid);
+    }
+    
+    public SkinValue getSkin(UUID uuid) {
+        return this.getSkin(uuid, true);
+    }
+    
+    public void removeSkin(UUID uuid, boolean save) {
+        var skin = skinMap.remove(uuid);
+        if (skin != null && save)
+            skinIO.saveSkin(uuid, skin);
+    }
+    
+    public void removeSkin(UUID uuid) {
+        this.removeSkin(uuid, true);
+    }
+    
+    public void deleteSkin(UUID uuid) {
+        this.removeSkin(uuid, false);
+        this.skinIO.deleteSkin(uuid);
+    }
+    
+    public void setSkin(UUID uuid, SkinValue skin) {
+        if (skin == null)
+            skin = SkinValue.EMPTY;
+        
+        if (skinMap.containsKey(uuid) && skin.originalValue() == null)
+            skin = skin.setOriginalValue(skinMap.get(uuid).originalValue());
+        
+        skinMap.put(uuid, skin);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/SkinValue.java

@@ -0,0 +1,41 @@
+package net.lionarius.skinrestorer.skin;
+
+import com.mojang.authlib.properties.Property;
+import net.lionarius.skinrestorer.skin.provider.EmptySkinProvider;
+import net.lionarius.skinrestorer.skin.provider.SkinProviderContext;
+import net.lionarius.skinrestorer.util.gson.GsonPostProcessable;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Objects;
+
+public record SkinValue(@NotNull String provider, @Nullable String argument, @Nullable SkinVariant variant,
+                        @Nullable Property value, @Nullable Property originalValue) implements GsonPostProcessable {
+    
+    public static final SkinValue EMPTY = new SkinValue(EmptySkinProvider.PROVIDER_NAME, null, null, null);
+    
+    public SkinValue(String provider, String argument, SkinVariant variant, Property value) {
+        this(provider, argument, variant, value, null);
+    }
+    
+    public static SkinValue fromProviderContextWithValue(SkinProviderContext context, Property value) {
+        return new SkinValue(context.name(), context.argument(), context.variant(), value);
+    }
+    
+    public SkinProviderContext toProviderContext() {
+        return new SkinProviderContext(this.provider, this.argument, this.variant);
+    }
+    
+    public SkinValue replaceValueWithOriginal() {
+        return new SkinValue(this.provider, this.argument, this.variant, this.originalValue, this.originalValue);
+    }
+    
+    public SkinValue setOriginalValue(Property originalValue) {
+        return new SkinValue(this.provider, this.argument, this.variant, this.value, originalValue);
+    }
+    
+    @Override
+    public void gsonPostProcess() {
+        Objects.requireNonNull(this.provider);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/SkinVariant.java

@@ -1,16 +1,19 @@
-package net.lionarius.skinrestorer.enums;
+package net.lionarius.skinrestorer.skin;
+
+import com.google.gson.annotations.SerializedName;
 
 public enum SkinVariant {
-
+    @SerializedName(value = "classic", alternate = {"CLASSIC"})
     CLASSIC("classic"),
+    @SerializedName(value = "slim", alternate = {"SLIM"})
     SLIM("slim");
-
+    
     private final String name;
-
+    
     SkinVariant(String name) {
         this.name = name;
     }
-
+    
     @Override
     public String toString() {
         return name;

common/src/main/java/net/lionarius/skinrestorer/skin/provider/CollectionSkinProvider.java

@@ -0,0 +1,91 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import com.mojang.authlib.properties.Property;
+import it.unimi.dsi.fastutil.Pair;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.provider.collection.CollectionSkinSource;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.Result;
+import org.jetbrains.annotations.NotNull;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+public final class CollectionSkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "collection";
+    
+    private static LoadingCache<Integer, Optional<Property>> SKIN_CACHE;
+    
+    private static List<Pair<URI, SkinVariant>> COLLECTION_SKINS;
+    
+    public static void reload() {
+        COLLECTION_SKINS = loadCollectionSkins();
+        
+        createCache();
+    }
+    
+    private static List<Pair<URI, SkinVariant>> loadCollectionSkins() {
+        List<Pair<URI, SkinVariant>> skins = new ArrayList<>();
+        
+        var config = SkinRestorer.getConfig().providersConfig().collection();
+        
+        for (CollectionSkinSource source : config.sources()) {
+            var uri = source.uri();
+            if (uri != null) {
+                skins.add(Pair.of(uri, source.variant()));
+            }
+        }
+        
+        return skins;
+    }
+    
+    private static void createCache() {
+        var config = SkinRestorer.getConfig().providersConfig().collection();
+        var time = config.cache().enabled() ? config.cache().duration() : 0;
+        
+        SKIN_CACHE = CacheBuilder.newBuilder()
+                .expireAfterWrite(time, TimeUnit.SECONDS)
+                .build(new CacheLoader<>() {
+                    @Override
+                    public @NotNull Optional<Property> load(@NotNull Integer key) throws Exception {
+                        var skinEntry = COLLECTION_SKINS.get(key);
+                        return MineskinSkinProvider.loadSkin(skinEntry.first(), skinEntry.second());
+                    }
+                });
+    }
+    
+    @Override
+    public String getArgumentName() {
+        return "seed";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return false;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String argument, SkinVariant variant) {
+        if (COLLECTION_SKINS.isEmpty()) {
+            return Result.error(new IllegalStateException("No collection skins configured"));
+        }
+        
+        var skinIndex = Math.abs(argument.hashCode()) % COLLECTION_SKINS.size();
+        
+        try {
+            return Result.success(SKIN_CACHE.get(skinIndex));
+        } catch (UncheckedExecutionException e) {
+            return Result.error((Exception) e.getCause());
+        } catch (Exception e) {
+            return Result.error(e);
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/ElyBySkinProvider.java

@@ -0,0 +1,107 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.yggdrasil.response.MinecraftProfilePropertiesResponse;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.*;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.http.HttpRequest;
+import java.util.Locale;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+public final class ElyBySkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "ely.by";
+    
+    private static final URI API_URI;
+    
+    private static LoadingCache<String, Optional<Property>> SKIN_CACHE;
+    
+    static {
+        try {
+            API_URI = new URI("http://skinsystem.ely.by");
+        } catch (URISyntaxException e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+    
+    public static void reload() {
+        createCache();
+    }
+    
+    private static void createCache() {
+        var config = SkinRestorer.getConfig().providersConfig().ely_by();
+        var time = config.cache().enabled() ? config.cache().duration() : 0;
+        
+        SKIN_CACHE = CacheBuilder.newBuilder()
+                .expireAfterWrite(time, TimeUnit.SECONDS)
+                .build(new CacheLoader<>() {
+                    @Override
+                    public @NotNull Optional<Property> load(@NotNull String key) throws Exception {
+                        return ElyBySkinProvider.loadSkin(key);
+                    }
+                });
+    }
+    
+    @Override
+    public String getArgumentName() {
+        return "username";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return false;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String username, SkinVariant variant) {
+        try {
+            if (!StringUtils.isValidPlayerName(username))
+                throw new IllegalArgumentException("invalid username");
+            
+            var usernameLowerCase = username.toLowerCase(Locale.ROOT);
+            
+            return Result.success(SKIN_CACHE.get(usernameLowerCase));
+        } catch (UncheckedExecutionException e) {
+            return Result.error((Exception) e.getCause());
+        } catch (Exception e) {
+            return Result.error(e);
+        }
+    }
+    
+    private static Optional<Property> loadSkin(String username) throws Exception {
+        var profile = ElyBySkinProvider.getElyByProfile(username);
+        var textures = PlayerUtils.getPlayerSkin(profile);
+        
+        return Optional.ofNullable(textures);
+    }
+    
+    private static GameProfile getElyByProfile(String username) throws IOException {
+        var request = HttpRequest.newBuilder()
+                .uri(ElyBySkinProvider.API_URI
+                        .resolve("/textures/signed/")
+                        .resolve(username + "?unsigned=false")
+                )
+                .GET()
+                .build();
+        
+        var response = WebUtils.executeRequest(request);
+        WebUtils.throwOnClientErrors(response);
+        
+        if (response.statusCode() != 200)
+            throw new IllegalArgumentException("no profile with name " + username);
+        
+        return JsonUtils.fromJson(response.body(), MinecraftProfilePropertiesResponse.class).toProfile();
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/EmptySkinProvider.java

@@ -0,0 +1,31 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.mojang.authlib.properties.Property;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.Result;
+
+import java.util.Optional;
+
+public final class EmptySkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "empty";
+    
+    @Override
+    public String getArgumentName() {
+        return "placeholder";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return false;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String argument, SkinVariant variant) {
+        return this.fetchSkin();
+    }
+    
+    public Result<Optional<Property>, Exception> fetchSkin() {
+        return Result.ofNullable(null);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/MineskinSkinProvider.java

@@ -0,0 +1,127 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import com.mojang.authlib.properties.Property;
+import it.unimi.dsi.fastutil.Pair;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.mineskin.Java11RequestHandler;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.JsonUtils;
+import net.lionarius.skinrestorer.util.PlayerUtils;
+import net.lionarius.skinrestorer.util.Result;
+import net.lionarius.skinrestorer.util.WebUtils;
+import org.jetbrains.annotations.NotNull;
+import org.mineskin.MineSkinClient;
+import org.mineskin.data.Variant;
+import org.mineskin.data.Visibility;
+import org.mineskin.request.GenerateRequest;
+import org.mineskin.response.QueueResponse;
+
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.time.Duration;
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+public final class MineskinSkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "web";
+    
+    private static MineSkinClient MINESKIN_CLIENT;
+    
+    private static LoadingCache<Pair<URI, SkinVariant>, Optional<Property>> SKIN_CACHE;
+    
+    public static void reload() {
+        var config = SkinRestorer.getConfig();
+        var configApiKey = config.providersConfig().mineskin().apiKey();
+        
+        MINESKIN_CLIENT = MineSkinClient
+                .builder()
+                .userAgent(WebUtils.USER_AGENT)
+                .gson(JsonUtils.GSON)
+                .timeout((int) Duration.ofSeconds(config.requestTimeout()).toMillis())
+                .requestHandler((baseUrl, userAgent, apiKey, timeout, gson) -> new Java11RequestHandler(
+                        baseUrl,
+                        userAgent,
+                        apiKey,
+                        timeout,
+                        gson,
+                        SkinRestorer.getConfig().proxy().map(proxy -> new InetSocketAddress(proxy.host(), proxy.port())).orElse(null)
+                ))
+                .apiKey(configApiKey.isEmpty() ? null : configApiKey)
+                .build();
+        
+        createCache();
+    }
+    
+    private static void createCache() {
+        var config = SkinRestorer.getConfig().providersConfig().mineskin();
+        var time = config.cache().enabled() ? config.cache().duration() : 0;
+        
+        SKIN_CACHE = CacheBuilder.newBuilder()
+                .expireAfterWrite(time, TimeUnit.SECONDS)
+                .build(new CacheLoader<>() {
+                    @Override
+                    public @NotNull Optional<Property> load(@NotNull Pair<URI, SkinVariant> key) throws Exception {
+                        return MineskinSkinProvider.loadSkin(key.first(), key.second());
+                    }
+                });
+    }
+    
+    @Override
+    public String getArgumentName() {
+        return "url";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return true;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String url, SkinVariant variant) {
+        try {
+            var uri = new URI(url);
+            
+            return Result.success(SKIN_CACHE.get(Pair.of(uri, variant)));
+        } catch (UncheckedExecutionException e) {
+            return Result.error((Exception) e.getCause());
+        } catch (Exception e) {
+            return Result.error(e);
+        }
+    }
+    
+    static Optional<Property> loadSkin(URI uri, SkinVariant variant) throws Exception {
+        var mineskinVariant = switch (variant) {
+            case CLASSIC -> Variant.CLASSIC;
+            case SLIM -> Variant.SLIM;
+        };
+        
+        var request = "file".equals(uri.getScheme())
+                ? GenerateRequest.upload(Files.newInputStream(Path.of(uri)))
+                .variant(mineskinVariant)
+                .name("skinrestorer-skin")
+                .visibility(Visibility.UNLISTED)
+                : GenerateRequest.url(uri)
+                .variant(mineskinVariant)
+                .name("skinrestorer-skin")
+                .visibility(Visibility.UNLISTED);
+        
+        var skin = MINESKIN_CLIENT.queue().submit(request)
+                .thenApply(QueueResponse::getJob)
+                .thenCompose(jobInfo -> jobInfo.waitForCompletion(MINESKIN_CLIENT))
+                .thenCompose(jobReference -> jobReference.getOrLoadSkin(MINESKIN_CLIENT))
+                .join();
+        
+        return Optional.of(new Property(
+                PlayerUtils.TEXTURES_KEY,
+                skin.texture().data().value(),
+                skin.texture().data().signature()
+        ));
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/MojangSkinProvider.java

@@ -0,0 +1,154 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import com.mojang.authlib.*;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.yggdrasil.YggdrasilEnvironment;
+import com.mojang.authlib.yggdrasil.response.MinecraftProfilePropertiesResponse;
+import com.mojang.util.UndashedUuid;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.exception.TransparentException;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.*;
+import net.minecraft.server.players.GameProfileCache;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.http.HttpRequest;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+
+public final class MojangSkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "mojang";
+    
+    private static final Environment ENVIRONMENT;
+    private static final URI SERVICES_SERVER_URI;
+    private static final URI SESSION_SERVER_URI;
+    
+    public static final String PROFILE_CACHE_FILENAME = "mojang_profile_cache.json";
+    private static final GameProfileCache PROFILE_CACHE;
+    
+    private static LoadingCache<UUID, Optional<Property>> SKIN_CACHE;
+    
+    static {
+        try {
+            ENVIRONMENT = EnvironmentParser.getEnvironmentFromProperties().orElse(YggdrasilEnvironment.PROD.getEnvironment());
+            
+            SERVICES_SERVER_URI = new URI(ENVIRONMENT.servicesHost());
+            SESSION_SERVER_URI = new URI(ENVIRONMENT.sessionHost());
+        } catch (URISyntaxException e) {
+            throw new IllegalArgumentException(e);
+        }
+        
+        PROFILE_CACHE = new GameProfileCache((names, callback) -> {
+            for (var name : names) {
+                try {
+                    var profile = MojangSkinProvider.getProfile(name);
+                    callback.onProfileLookupSucceeded(profile);
+                } catch (IOException e) {
+                    throw new TransparentException(e);
+                }
+            }
+        }, SkinRestorer.getConfigDir().resolve(PROFILE_CACHE_FILENAME).toFile());
+    }
+    
+    public static void reload() {
+        createCache();
+    }
+    
+    private static void createCache() {
+        var config = SkinRestorer.getConfig().providersConfig().mojang();
+        var time = config.cache().enabled() ? config.cache().duration() : 0;
+        
+        SKIN_CACHE = CacheBuilder.newBuilder()
+                .expireAfterWrite(time, TimeUnit.SECONDS)
+                .build(new CacheLoader<>() {
+                    @Override
+                    public @NotNull Optional<Property> load(@NotNull UUID key) throws Exception {
+                        return MojangSkinProvider.loadSkin(key);
+                    }
+                });
+    }
+    
+    public static SkinProviderContext skinProviderContextFromProfile(GameProfile gameProfile) {
+        return new SkinProviderContext(MojangSkinProvider.PROVIDER_NAME, gameProfile.getName(), null);
+    }
+    
+    @Override
+    public String getArgumentName() {
+        return "username";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return false;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String username, SkinVariant variant) {
+        try {
+            if (!StringUtils.isValidPlayerName(username))
+                throw new IllegalArgumentException("invalid username");
+            
+            var cachedProfile = MojangSkinProvider.PROFILE_CACHE.get(username);
+            if (cachedProfile.isEmpty())
+                throw new IllegalArgumentException("no profile found for " + username);
+            
+            return Result.success(SKIN_CACHE.get(cachedProfile.get().getId()));
+        } catch (UncheckedExecutionException e) {
+            return Result.error((Exception) e.getCause());
+        } catch (Exception e) {
+            return Result.error(e);
+        }
+    }
+    
+    private static Optional<Property> loadSkin(UUID uuid) throws Exception {
+        var profile = MojangSkinProvider.getProfileWithProperties(uuid);
+        var textures = PlayerUtils.getPlayerSkin(profile);
+        
+        return Optional.ofNullable(textures);
+    }
+    
+    private static GameProfile getProfile(final String name) throws IOException {
+        var request = HttpRequest.newBuilder()
+                .uri(MojangSkinProvider.SERVICES_SERVER_URI
+                        .resolve("/minecraft/profile/lookup/name/")
+                        .resolve(name)
+                )
+                .GET()
+                .build();
+        
+        var response = WebUtils.executeRequest(request);
+        WebUtils.throwOnClientErrors(response);
+        
+        if (response.statusCode() != 200)
+            throw new IllegalArgumentException("no profile with name " + name);
+        
+        return JsonUtils.fromJson(response.body(), GameProfile.class);
+    }
+    
+    private static GameProfile getProfileWithProperties(UUID uuid) throws IOException {
+        var request = HttpRequest.newBuilder()
+                .uri(MojangSkinProvider.SESSION_SERVER_URI
+                        .resolve("/session/minecraft/profile/")
+                        .resolve(UndashedUuid.toString(uuid) + "?unsigned=false")
+                )
+                .GET()
+                .build();
+        
+        var response = WebUtils.executeRequest(request);
+        WebUtils.throwOnClientErrors(response);
+        
+        if (response.statusCode() != 200)
+            throw new IllegalArgumentException("no profile with uuid " + uuid);
+        
+        return JsonUtils.fromJson(response.body(), MinecraftProfilePropertiesResponse.class).toProfile();
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/SkinProvider.java

@@ -0,0 +1,33 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.google.common.collect.ImmutableSet;
+import com.mojang.authlib.properties.Property;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.Result;
+
+import java.util.Optional;
+import java.util.Set;
+
+public interface SkinProvider {
+    EmptySkinProvider EMPTY = new EmptySkinProvider();
+    MojangSkinProvider MOJANG = new MojangSkinProvider();
+    ElyBySkinProvider ELY_BY = new ElyBySkinProvider();
+    MineskinSkinProvider MINESKIN = new MineskinSkinProvider();
+    CollectionSkinProvider COLLECTION = new CollectionSkinProvider();
+    SkinShuffleSkinProvider SKIN_SHUFFLE = new SkinShuffleSkinProvider();
+    
+    Set<String> BUILTIN_PROVIDER_NAMES = ImmutableSet.of(
+            EmptySkinProvider.PROVIDER_NAME,
+            MojangSkinProvider.PROVIDER_NAME,
+            ElyBySkinProvider.PROVIDER_NAME,
+            MineskinSkinProvider.PROVIDER_NAME,
+            CollectionSkinProvider.PROVIDER_NAME,
+            SkinShuffleSkinProvider.PROVIDER_NAME
+    );
+    
+    String getArgumentName();
+    
+    boolean hasVariantSupport();
+    
+    Result<Optional<Property>, Exception> fetchSkin(String argument, SkinVariant variant);
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/SkinProviderContext.java

@@ -0,0 +1,6 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import net.lionarius.skinrestorer.skin.SkinVariant;
+
+public record SkinProviderContext(String name, String argument, SkinVariant variant) {
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/SkinProviderRegistry.java

@@ -0,0 +1,52 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import it.unimi.dsi.fastutil.Pair;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+public final class SkinProviderRegistry {
+    
+    private final Map<String, Entry> registry = new HashMap<>();
+    
+    public SkinProvider get(String name) {
+        var entry = this.registry.get(name);
+        if (entry == null)
+            return null;
+        
+        return entry.provider;
+    }
+    
+    public Collection<Pair<String, SkinProvider>> getProviders() {
+        return this.registry
+                .entrySet()
+                .stream()
+                .map(entry -> Pair.of(entry.getKey(), entry.getValue().provider))
+                .toList();
+    }
+    
+    public Collection<Pair<String, SkinProvider>> getPublicProviders() {
+        return this.registry
+                .entrySet()
+                .stream()
+                .filter(entry -> entry.getValue().isPublic)
+                .map(entry -> Pair.of(entry.getKey(), entry.getValue().provider))
+                .toList();
+    }
+    
+    public void register(@NotNull String name, @NotNull SkinProvider provider) {
+        this.register(name, provider, true);
+    }
+    
+    public void register(@NotNull String name, @NotNull SkinProvider provider, boolean isPublic) {
+        if (this.registry.containsKey(name))
+            return;
+        
+        this.registry.put(name, new Entry(provider, isPublic));
+    }
+    
+    private record Entry(SkinProvider provider, boolean isPublic) {
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/skin/provider/SkinShuffleSkinProvider.java

@@ -0,0 +1,27 @@
+package net.lionarius.skinrestorer.skin.provider;
+
+import com.mojang.authlib.properties.Property;
+import net.lionarius.skinrestorer.skin.SkinVariant;
+import net.lionarius.skinrestorer.util.Result;
+
+import java.util.Optional;
+
+public final class SkinShuffleSkinProvider implements SkinProvider {
+    
+    public static final String PROVIDER_NAME = "skinshuffle";
+    
+    @Override
+    public String getArgumentName() {
+        return "unsupported";
+    }
+    
+    @Override
+    public boolean hasVariantSupport() {
+        return false;
+    }
+    
+    @Override
+    public Result<Optional<Property>, Exception> fetchSkin(String argument, SkinVariant variant) {
+        return Result.error(new UnsupportedOperationException("SkinShuffle Provider does not support fetching skins"));
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/translation/Translation.java

@@ -0,0 +1,69 @@
+package net.lionarius.skinrestorer.translation;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.reflect.TypeToken;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.util.FileUtils;
+import net.lionarius.skinrestorer.util.JsonUtils;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.MutableComponent;
+
+import java.util.Map;
+import java.util.Objects;
+
+public final class Translation {
+    public static final String LEGACY_TRANSLATION_FILENAME = "translation";
+    
+    public static final String COMMAND_SKIN_AFFECTED_PLAYERS_KEY = "skinrestorer.command.skin.affected_players";
+    public static final String COMMAND_SKIN_NO_CHANGES_KEY = "skinrestorer.command.skin.no_changes";
+    public static final String COMMAND_SKIN_FAILED_KEY = "skinrestorer.command.skin.failed";
+    public static final String COMMAND_SKIN_OK_KEY = "skinrestorer.command.skin.ok";
+    public static final String COMMAND_SKIN_LOADING_KEY = "skinrestorer.command.skin.loading";
+    public static final String COMMAND_SKIN_CONFIG_RELOADED_KEY = "skinrestorer.command.skin.config_reloaded";
+    
+    private static Map<String, String> translations;
+    private static final Map<String, String> fallback;
+    
+    static {
+        fallback = Translation.loadTranslationMap("en_us");
+    }
+    
+    private Translation() {}
+    
+    public static String get(String key) {
+        var value = translations.get(key);
+        if (value == null)
+            value = fallback.get(key);
+        
+        return value;
+    }
+    
+    public static MutableComponent translatableWithFallback(String key) {
+        return Component.translatableWithFallback(key, Translation.get(key));
+    }
+    
+    public static MutableComponent translatableWithFallback(String key, Object... args) {
+        return Component.translatableWithFallback(key, Translation.get(key), args);
+    }
+    
+    public static void reloadTranslations() {
+        translations = Translation.loadTranslationMap(SkinRestorer.getConfig().language());
+    }
+    
+    private static ImmutableMap<String, String> loadTranslationMap(String lang) {
+        var json = FileUtils.readResource(SkinRestorer.assetPath(String.format("lang/%s.json", lang)));
+        
+        var type = new TypeToken<Map<String, String>>() {}.getType();
+        Map<String, String> map = null;
+        try {
+            map = JsonUtils.fromJson(Objects.requireNonNull(json), type);
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.error("Failed to load translation map", e);
+        }
+        
+        if (map == null)
+            return ImmutableMap.<String, String>builder().build();
+        
+        return ImmutableMap.copyOf(map);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/FileUtils.java

@@ -0,0 +1,98 @@
+package net.lionarius.skinrestorer.util;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.config.Config;
+import net.lionarius.skinrestorer.skin.SkinIO;
+import net.lionarius.skinrestorer.skin.provider.MojangSkinProvider;
+import net.lionarius.skinrestorer.translation.Translation;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+
+public final class FileUtils {
+    
+    private FileUtils() {}
+    
+    public static void tryMigrateOldSkinDirectory(Path oldDirectory, Path newDirectory) {
+        try {
+            try (var stream = Files.list(oldDirectory)) {
+                var files = stream.filter(file -> {
+                    var name = file.getFileName().toString();
+                    return Files.isRegularFile(file)
+                           && !name.startsWith(Translation.LEGACY_TRANSLATION_FILENAME)
+                           && !name.startsWith(Config.CONFIG_FILENAME)
+                           && !name.startsWith(MojangSkinProvider.PROFILE_CACHE_FILENAME)
+                           && name.endsWith(SkinIO.FILE_EXTENSION);
+                }).toList();
+                
+                if (!files.isEmpty() && !Files.exists(newDirectory))
+                    Files.createDirectories(newDirectory);
+                
+                for (var file : files) {
+                    var newFile = newDirectory.resolve(file.getFileName());
+                    if (!Files.exists(newFile))
+                        Files.move(file, newFile, StandardCopyOption.ATOMIC_MOVE);
+                    else
+                        Files.delete(file);
+                }
+            }
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.error("Could not migrate skin directory", e);
+        }
+    }
+    
+    public static String readResource(String name) {
+        try (var stream = SkinRestorer.class.getResourceAsStream(name)) {
+            if (stream == null)
+                return null;
+            
+            try (var reader = new BufferedReader(new InputStreamReader(stream, StandardCharsets.UTF_8))) {
+                return StringUtils.readString(reader);
+            }
+        } catch (IOException e) {
+            SkinRestorer.LOGGER.error("Failed to read resource", e);
+            return null;
+        }
+    }
+    
+    public static String readFile(Path file) {
+        try {
+            if (!Files.exists(file))
+                return null;
+            
+            return Files.readString(file);
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.error("Failed to read file", e);
+            return null;
+        }
+    }
+    
+    public static void writeFile(Path file, String content) {
+        try {
+            var parent = file.getParent();
+            if (parent != null)
+                Files.createDirectories(parent);
+            
+            if (!Files.exists(file))
+                Files.createFile(file);
+            
+            Files.writeString(file, content);
+        } catch (IOException e) {
+            SkinRestorer.LOGGER.error("Failed to write file", e);
+        }
+    }
+    
+    public static void deleteFile(Path file) {
+        try {
+            if (Files.exists(file))
+                Files.delete(file);
+        } catch (IOException e) {
+            SkinRestorer.LOGGER.error("Failed to delete file", e);
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/JsonUtils.java

@@ -0,0 +1,63 @@
+package net.lionarius.skinrestorer.util;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.properties.PropertyMap;
+import com.mojang.util.UUIDTypeAdapter;
+import net.lionarius.skinrestorer.SkinRestorer;
+import net.lionarius.skinrestorer.util.gson.PostProcessingEnabler;
+
+import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+import java.util.UUID;
+
+public final class JsonUtils {
+    
+    public static final Gson GSON = new GsonBuilder()
+            .registerTypeAdapterFactory(new PostProcessingEnabler())
+            .registerTypeAdapter(UUID.class, new UUIDTypeAdapter())
+            .registerTypeAdapter(PropertyMap.class, new PropertyMap.Serializer())
+            .registerTypeAdapter(GameProfile.class, new GameProfile.Serializer())
+            .setPrettyPrinting()
+            .create();
+    
+    private JsonUtils() {}
+    
+    public static <T> T fromJson(String json, Class<T> clazz) {
+        return GSON.fromJson(json, clazz);
+    }
+    
+    public static <T> T fromJson(JsonElement json, Class<T> clazz) {
+        return GSON.fromJson(json, clazz);
+    }
+    
+    public static <T> T fromJson(String json, Type type) {
+        return GSON.fromJson(json, type);
+    }
+    
+    public static <T> String toJson(T obj) {
+        return GSON.toJson(obj);
+    }
+    
+    public static JsonObject parseJson(String json) {
+        return GSON.fromJson(json, JsonObject.class);
+    }
+    
+    public static JsonObject skinPropertyToJson(Property property) {
+        try {
+            JsonObject json = GSON.fromJson(new String(Base64.getDecoder().decode(property.value()), StandardCharsets.UTF_8), JsonObject.class);
+            if (json != null)
+                json.remove("timestamp");
+            
+            return json;
+        } catch (Exception e) {
+            SkinRestorer.LOGGER.error("Could not parse skin property", e);
+            return null;
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/PlayerUtils.java

@@ -0,0 +1,140 @@
+package net.lionarius.skinrestorer.util;
+
+import com.google.common.collect.Iterables;
+import com.google.gson.JsonObject;
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.yggdrasil.response.MinecraftProfilePropertiesResponse;
+import net.lionarius.skinrestorer.mixin.ChunkMapAccessor;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.*;
+import net.minecraft.server.level.ChunkMap;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.players.PlayerList;
+
+import java.util.*;
+
+public final class PlayerUtils {
+    
+    public static final String TEXTURES_KEY = "textures";
+    
+    private PlayerUtils() {}
+    
+    public static Component createPlayerListComponent(Collection<ServerPlayer> players) {
+        var component = Component.empty();
+        int index = 0;
+        for (var player : players) {
+            component.append(Objects.requireNonNull(player.getDisplayName()));
+            index++;
+            if (index < players.size())
+                component.append(", ");
+        }
+        return component;
+    }
+    
+    public static boolean isFakePlayer(ServerPlayer player) {
+        return player.getClass() != ServerPlayer.class; // if the player isn't a server player entity, it must be someone's fake player
+    }
+    
+    public static void refreshPlayer(ServerPlayer player) {
+        ServerLevel serverLevel = player.serverLevel();
+        PlayerList playerList = serverLevel.getServer().getPlayerList();
+        ChunkMap chunkMap = serverLevel.getChunkSource().chunkMap;
+        
+        playerList.broadcastAll(new ClientboundBundlePacket(
+                List.of(
+                        new ClientboundPlayerInfoRemovePacket(List.of(player.getUUID())),
+                        ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(Collections.singleton(player))
+                )
+        ));
+        
+        var trackedEntity = ((ChunkMapAccessor) chunkMap).getEntityMap().get(player.getId());
+        if (trackedEntity != null) {
+            var seenBy = Set.copyOf(trackedEntity.getSeenBy());
+            for (var observerConnection : seenBy) {
+                var observer = observerConnection.getPlayer();
+                trackedEntity.invokeRemovePlayer(observer);
+                
+                var trackedObserverEntity = ((ChunkMapAccessor) chunkMap).getEntityMap().get(observer.getId());
+                if (trackedObserverEntity != null) {
+                    trackedObserverEntity.invokeRemovePlayer(player);
+                    trackedObserverEntity.invokeUpdatePlayer(player);
+                }
+                trackedEntity.invokeUpdatePlayer(observer);
+            }
+        }
+        
+        if (!player.isDeadOrDying()) {
+            player.connection.send(new ClientboundBundlePacket(
+                    List.of(
+                            new ClientboundRespawnPacket(player.createCommonSpawnInfo(serverLevel), ClientboundRespawnPacket.KEEP_ALL_DATA),
+                            new ClientboundGameEventPacket(ClientboundGameEventPacket.LEVEL_CHUNKS_LOAD_START, 0)
+                    )
+            ));
+            player.connection.teleport(player.getX(), player.getY(), player.getZ(), player.getYRot(), player.getXRot());
+            player.connection.send(new ClientboundSetEntityMotionPacket(player));
+            var vehicle = player.getVehicle();
+            if (vehicle != null)
+                player.connection.send(new ClientboundSetPassengersPacket(vehicle));
+            if (!player.getPassengers().isEmpty())
+                player.connection.send(new ClientboundSetPassengersPacket(player));
+            
+            player.onUpdateAbilities();
+            player.giveExperiencePoints(0);
+            playerList.sendPlayerPermissionLevel(player);
+            playerList.sendLevelInfo(player, serverLevel);
+            playerList.sendAllPlayerInfo(player);
+            PlayerUtils.sendActivePlayerEffects(player);
+        }
+    }
+    
+    private static void sendActivePlayerEffects(ServerPlayer player) {
+        for (var effect : player.getActiveEffects()) {
+            player.connection.send(new ClientboundUpdateMobEffectPacket(player.getId(), effect));
+        }
+    }
+    
+    public static GameProfile cloneGameProfile(GameProfile profile) {
+        var newProfile = new GameProfile(profile.getId(), profile.getName());
+        newProfile.getProperties().putAll(profile.getProperties());
+        
+        return newProfile;
+    }
+    
+    public static Property getPlayerSkin(GameProfile profile) {
+        return Iterables.getFirst(profile.getProperties().get(TEXTURES_KEY), null);
+    }
+    
+    public static void applyRestoredSkin(GameProfile profile, Property skin) {
+        profile.getProperties().removeAll(TEXTURES_KEY);
+        
+        if (skin != null)
+            profile.getProperties().put(TEXTURES_KEY, skin);
+    }
+    
+    public static boolean areSkinPropertiesEquals(Property x, Property y) {
+        if (x == y)
+            return true;
+        
+        if (x == null || y == null)
+            return false;
+        
+        if (x.equals(y))
+            return true;
+        
+        JsonObject xJson = JsonUtils.skinPropertyToJson(x);
+        JsonObject yJson = JsonUtils.skinPropertyToJson(y);
+        
+        if (xJson == null || yJson == null)
+            return false;
+        
+        return xJson.equals(yJson);
+    }
+    
+    public static GameProfile toProfile(MinecraftProfilePropertiesResponse response) {
+        final GameProfile profile = new GameProfile(response.id(), response.name());
+        profile.getProperties().putAll(response.properties());
+        return profile;
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/Result.java

@@ -0,0 +1,84 @@
+package net.lionarius.skinrestorer.util;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Objects;
+import java.util.Optional;
+import java.util.function.Function;
+
+public class Result<S, E> {
+    
+    private final S successValue;
+    private final E errorValue;
+    
+    private Result(S successValue, E errorValue) {
+        if (successValue == null && errorValue == null)
+            throw new IllegalArgumentException("Cannot create result of null values");
+        
+        this.successValue = successValue;
+        this.errorValue = errorValue;
+    }
+    
+    public static <S, E> Result<S, E> success(@NotNull S successValue) {
+        return new Result<>(successValue, null);
+    }
+    
+    public static <S, E> Result<S, E> error(@NotNull E errorValue) {
+        return new Result<>(null, errorValue);
+    }
+    
+    public static <S, E> Result<Optional<S>, E> ofNullable(S successValue) {
+        return Result.success(Optional.ofNullable(successValue));
+    }
+    
+    public S getSuccessValue() {
+        return successValue;
+    }
+    
+    public E getErrorValue() {
+        return errorValue;
+    }
+    
+    public boolean isSuccess() {
+        return successValue != null;
+    }
+    
+    public boolean isError() {
+        return errorValue != null;
+    }
+    
+    public <N> Result<N, E> map(Function<S, N> mapper) {
+        if (successValue == null)
+            return new Result<>(null, errorValue);
+        
+        return new Result<>(mapper.apply(successValue), errorValue);
+    }
+    
+    public <N> Result<S, N> mapError(Function<E, N> mapper) {
+        if (errorValue == null)
+            return new Result<>(successValue, null);
+        
+        return new Result<>(successValue, mapper.apply(errorValue));
+    }
+    
+    public Optional<S> toOptional() {
+        return Optional.ofNullable(successValue);
+    }
+    
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        
+        if (o == null || getClass() != o.getClass())
+            return false;
+        
+        Result<?, ?> result = (Result<?, ?>) o;
+        return Objects.equals(successValue, result.successValue) && Objects.equals(errorValue, result.errorValue);
+    }
+    
+    @Override
+    public int hashCode() {
+        return Objects.hash(successValue, errorValue);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/StringUtils.java

@@ -3,15 +3,22 @@ package net.lionarius.skinrestorer.util;
 import java.io.BufferedReader;
 import java.io.IOException;
 
-public class StringUtils {
-
+public final class StringUtils {
+    
+    private StringUtils() {}
+    
     public static String readString(BufferedReader reader) throws IOException {
         String inputLine;
         StringBuilder response = new StringBuilder();
-
+        
         while ((inputLine = reader.readLine()) != null) {
             response.append(inputLine);
         }
+        
         return response.toString();
     }
+    
+    public static boolean isValidPlayerName(String playerName) {
+        return playerName.length() <= 16 && playerName.chars().filter(i -> i <= 32 || i >= 127).findAny().isEmpty();
+    }
 }

common/src/main/java/net/lionarius/skinrestorer/util/TickedScheduler.java

@@ -0,0 +1,60 @@
+package net.lionarius.skinrestorer.util;
+
+import net.minecraft.server.MinecraftServer;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Map;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.PriorityBlockingQueue;
+
+public class TickedScheduler implements Runnable {
+    private final MinecraftServer server;
+    private final Queue<TickTask> queue = new PriorityBlockingQueue<>();
+    private final Map<Integer, Integer> idMap = new ConcurrentHashMap<>();
+    
+    public TickedScheduler(MinecraftServer server) {
+        this.server = server;
+    }
+    
+    public void schedule(Runnable task, int delay) {
+        this.schedule(task, delay, task);
+    }
+    
+    public void schedule(Runnable task, int delay, Object id) {
+        var taskId = id.hashCode();
+        var serverTick = this.server.getTickCount();
+        this.idMap.merge(taskId, serverTick, Integer::max);
+        this.queue.add(new TickTask(serverTick, serverTick + delay, taskId, task));
+    }
+    
+    public void cancel(Object id) {
+        var taskId = id.hashCode();
+        this.idMap.remove(taskId);
+    }
+    
+    @Override
+    public void run() {
+        TickTask nextTask;
+        while ((nextTask = this.queue.peek()) != null) {
+            if (nextTask.runOnTick() > this.server.getTickCount())
+                break;
+            
+            var tickTask = this.queue.remove();
+            var lastTaskScheduledOnTick = this.idMap.get(tickTask.id());
+            
+            if (lastTaskScheduledOnTick != null && lastTaskScheduledOnTick <= tickTask.scheduledOnTick()) {
+                this.idMap.remove(tickTask.id());
+                if (tickTask.task() != null)
+                    tickTask.task().run();
+            }
+        }
+    }
+    
+    private record TickTask(int scheduledOnTick, int runOnTick, int id, Runnable task) implements Comparable<TickTask> {
+        @Override
+        public int compareTo(@NotNull TickedScheduler.TickTask other) {
+            return Integer.compare(this.runOnTick, other.runOnTick);
+        }
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/WebUtils.java

@@ -0,0 +1,79 @@
+package net.lionarius.skinrestorer.util;
+
+import net.lionarius.skinrestorer.SkinRestorer;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ProxySelector;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.time.Duration;
+import java.time.temporal.ChronoUnit;
+
+public final class WebUtils {
+    
+    public static final String USER_AGENT;
+    
+    private static HttpClient HTTP_CLIENT = null;
+    
+    static {
+        USER_AGENT = String.format("SkinRestorer/%d", System.currentTimeMillis() % 65535);
+    }
+    
+    private WebUtils() {}
+    
+    public static void recreateHttpClient() {
+        HTTP_CLIENT = WebUtils.buildClient();
+    }
+    
+    private static HttpClient buildClient() {
+        var builder = HttpClient.newBuilder();
+        
+        var proxy = SkinRestorer.getConfig().proxy();
+        proxy.ifPresent(value -> builder.proxy(ProxySelector.of(InetSocketAddress.createUnresolved(value.host(), value.port()))));
+        
+        try {
+            builder.connectTimeout(Duration.of(SkinRestorer.getConfig().requestTimeout(), ChronoUnit.SECONDS));
+        } catch (IllegalArgumentException e) {
+            SkinRestorer.LOGGER.error("Failed to set request timeout", e);
+            builder.connectTimeout(Duration.of(10, ChronoUnit.SECONDS));
+        }
+        
+        return builder.build();
+    }
+    
+    public static HttpResponse<String> executeRequest(HttpRequest request) throws IOException {
+        try {
+            var modifiedRequest = HttpRequest.newBuilder(request, (name, value) -> true)
+                    .header("User-Agent", WebUtils.USER_AGENT)
+                    .build();
+            
+            final var response = WebUtils.HTTP_CLIENT.send(modifiedRequest, HttpResponse.BodyHandlers.ofString());
+            
+            if (response.statusCode() >= 500)
+                throw new IOException("server error " + response.statusCode());
+            
+            return response;
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+            throw new IOException(e);
+        }
+    }
+    
+    public static void throwOnClientErrors(HttpResponse<?> response) {
+        String message = switch (response.statusCode()) {
+            case 400 -> "bad request";
+            case 401 -> "unauthorized";
+            case 403 -> "forbidden";
+            case 404 -> "not found";
+            case 405 -> "method not allowed";
+            case 408 -> "request timeout";
+            case 429 -> "too many requests";
+            default -> null;
+        };
+        
+        if (message != null)
+            throw new IllegalStateException(message);
+    }
+}

common/src/main/java/net/lionarius/skinrestorer/util/gson/GsonPostProcessable.java

@@ -0,0 +1,5 @@
+package net.lionarius.skinrestorer.util.gson;
+
+public interface GsonPostProcessable {
+    void gsonPostProcess();
+}

common/src/main/java/net/lionarius/skinrestorer/util/gson/PostProcessingEnabler.java

@@ -0,0 +1,34 @@
+package net.lionarius.skinrestorer.util.gson;
+
+import com.google.gson.Gson;
+import com.google.gson.TypeAdapter;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+
+import java.io.IOException;
+
+public class PostProcessingEnabler implements TypeAdapterFactory {
+    @Override
+    public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
+        var adapter = gson.getDelegateAdapter(this, type);
+        
+        return new TypeAdapter<>() {
+            @Override
+            public void write(JsonWriter out, T value) throws IOException {
+                adapter.write(out, value);
+            }
+            
+            @Override
+            public T read(JsonReader in) throws IOException {
+                var value = adapter.read(in);
+                
+                if (value instanceof GsonPostProcessable postProcessable)
+                    postProcessable.gsonPostProcess();
+                
+                return value;
+            }
+        };
+    }
+}

common/src/main/resources/META-INF/accesstransformer.cfg

@@ -0,0 +1 @@
+public net.minecraft.server.players.GameProfileCache$GameProfileInfo

common/src/main/resources/assets/skinrestorer/lang/cs_cz.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Změny skinu použity pro %s",
+    "skinrestorer.command.skin.no_changes": "Žádné změny skinu",
+    "skinrestorer.command.skin.failed": "Nepodařilo se změnit skin: %s",
+    "skinrestorer.command.skin.ok": "Skin změněn",
+    "skinrestorer.command.skin.loading": "Načítání skinu...",
+    "skinrestorer.command.skin.config_reloaded": "Konfigurace byla znovu načtena"
+}

common/src/main/resources/assets/skinrestorer/lang/de_de.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Skin änderungen für %s angewendet",
+    "skinrestorer.command.skin.no_changes": "Keine Skinänderungen",
+    "skinrestorer.command.skin.failed": "Skin konnte nicht geändert werden: %s",
+    "skinrestorer.command.skin.ok": "Skin geändert",
+    "skinrestorer.command.skin.loading": "Skin wird geladen...",
+    "skinrestorer.command.skin.config_reloaded": "Konfiguration wurde neu geladen"
+}

common/src/main/resources/assets/skinrestorer/lang/en_us.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Applied skin changes for %s",
+    "skinrestorer.command.skin.no_changes": "No skin changes",
+    "skinrestorer.command.skin.failed": "Failed to change skin: %s",
+    "skinrestorer.command.skin.ok": "Skin changed",
+    "skinrestorer.command.skin.loading": "Loading skin...",
+    "skinrestorer.command.skin.config_reloaded": "Config has been reloaded"
+}

common/src/main/resources/assets/skinrestorer/lang/es_ar.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Cambios de skin aplicados para %s",
+    "skinrestorer.command.skin.no_changes": "No hay cambios de skin",
+    "skinrestorer.command.skin.failed": "Error al cambiar el skin: %s",
+    "skinrestorer.command.skin.ok": "Skin cambiado",
+    "skinrestorer.command.skin.loading": "Cargando skin...",
+    "skinrestorer.command.skin.config_reloaded": "La configuración se ha recargado"
+}

common/src/main/resources/assets/skinrestorer/lang/es_es.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Cambios de skin aplicados para %s",
+    "skinrestorer.command.skin.no_changes": "No hay cambios de skin",
+    "skinrestorer.command.skin.failed": "Error al cambiar el skin: %s",
+    "skinrestorer.command.skin.ok": "Skin cambiado",
+    "skinrestorer.command.skin.loading": "Cargando skin...",
+    "skinrestorer.command.skin.config_reloaded": "La configuración se ha recargado"
+}

common/src/main/resources/assets/skinrestorer/lang/es_mx.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Cambios de skin aplicados para %s",
+    "skinrestorer.command.skin.no_changes": "No hay cambios de skin",
+    "skinrestorer.command.skin.failed": "Error al cambiar el skin: %s",
+    "skinrestorer.command.skin.ok": "Skin cambiado",
+    "skinrestorer.command.skin.loading": "Cargando skin...",
+    "skinrestorer.command.skin.config_reloaded": "La configuración se ha recargado"
+}

common/src/main/resources/assets/skinrestorer/lang/fil_ph.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Na-apply ang pagbabago ng skin para kay %s",
+    "skinrestorer.command.skin.no_changes": "Walang pagbabago sa skin",
+    "skinrestorer.command.skin.failed": "Nabigo sa pagbabago ng skin: %s",
+    "skinrestorer.command.skin.ok": "Nabago ang skin",
+    "skinrestorer.command.skin.loading": "Naglo-load ng skin...",
+    "skinrestorer.command.skin.config_reloaded": "Na-reload ang config"
+}

common/src/main/resources/assets/skinrestorer/lang/fr_ca.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Modifications de skin appliquées pour %s",
+    "skinrestorer.command.skin.no_changes": "Aucun changement de skin",
+    "skinrestorer.command.skin.failed": "Échec du changement de skin : %s",
+    "skinrestorer.command.skin.ok": "Skin changé",
+    "skinrestorer.command.skin.loading": "Chargement du skin...",
+    "skinrestorer.command.skin.config_reloaded": "La configuration a été rechargée"
+}

common/src/main/resources/assets/skinrestorer/lang/fr_fr.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Modifications de skin appliquées pour %s",
+    "skinrestorer.command.skin.no_changes": "Aucun changement de skin",
+    "skinrestorer.command.skin.failed": "Échec du changement de skin : %s",
+    "skinrestorer.command.skin.ok": "Skin changé",
+    "skinrestorer.command.skin.loading": "Chargement du skin...",
+    "skinrestorer.command.skin.config_reloaded": "La configuration a été rechargée"
+}

common/src/main/resources/assets/skinrestorer/lang/hi_in.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "त्वचा परिवर्तन %s के लिए लागू किए गए",
+    "skinrestorer.command.skin.no_changes": "कोई त्वचा परिवर्तन नहीं",
+    "skinrestorer.command.skin.failed": "त्वचा बदलने में विफल: %s",
+    "skinrestorer.command.skin.ok": "त्वचा बदल दी गई",
+    "skinrestorer.command.skin.loading": "त्वचा लोड हो रही है...",
+    "skinrestorer.command.skin.config_reloaded": "कॉन्फ़िगरेशन फिर से लोड किया गया है"
+}

common/src/main/resources/assets/skinrestorer/lang/hu_hu.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Skin változások alkalmazva: %s",
+    "skinrestorer.command.skin.no_changes": "Nincsenek skin változások",
+    "skinrestorer.command.skin.failed": "Skin változtatás sikertelen: %s",
+    "skinrestorer.command.skin.ok": "Skin megváltoztatva",
+    "skinrestorer.command.skin.loading": "Skin betöltése...",
+    "skinrestorer.command.skin.config_reloaded": "A konfiguráció újratöltve"
+}

common/src/main/resources/assets/skinrestorer/lang/id_id.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Perubahan skin diterapkan untuk %s",
+    "skinrestorer.command.skin.no_changes": "Tidak ada perubahan skin",
+    "skinrestorer.command.skin.failed": "Gagal mengubah skin: %s",
+    "skinrestorer.command.skin.ok": "Skin diubah",
+    "skinrestorer.command.skin.loading": "Memuat skin...",
+    "skinrestorer.command.skin.config_reloaded": "Konfigurasi telah dimuat ulang"
+}

common/src/main/resources/assets/skinrestorer/lang/it_it.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Modifiche della skin applicate per %s",
+    "skinrestorer.command.skin.no_changes": "Nessuna modifica alla skin",
+    "skinrestorer.command.skin.failed": "Impossibile cambiare la skin: %s",
+    "skinrestorer.command.skin.ok": "Skin cambiata",
+    "skinrestorer.command.skin.loading": "Caricamento della skin...",
+    "skinrestorer.command.skin.config_reloaded": "La configurazione è stata ricaricata"
+}

common/src/main/resources/assets/skinrestorer/lang/pl_pl.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Zastosowano zmiany skina dla %s",
+    "skinrestorer.command.skin.no_changes": "Brak zmian skina",
+    "skinrestorer.command.skin.failed": "Nie udało się zmienić skina: %s",
+    "skinrestorer.command.skin.ok": "Skin zmieniony",
+    "skinrestorer.command.skin.loading": "Ładowanie skina...",
+    "skinrestorer.command.skin.config_reloaded": "Konfiguracja została przeładowana"
+}

common/src/main/resources/assets/skinrestorer/lang/pt_br.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Alterações de skin aplicadas para %s",
+    "skinrestorer.command.skin.no_changes": "Nenhuma alteração de skin",
+    "skinrestorer.command.skin.failed": "Falha ao alterar a skin: %s",
+    "skinrestorer.command.skin.ok": "Skin alterada",
+    "skinrestorer.command.skin.loading": "Carregando skin...",
+    "skinrestorer.command.skin.config_reloaded": "Configuração recarregada"
+}

common/src/main/resources/assets/skinrestorer/lang/pt_pt.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Alterações de skin aplicadas para %s",
+    "skinrestorer.command.skin.no_changes": "Nenhuma alteração de skin",
+    "skinrestorer.command.skin.failed": "Falha ao alterar a skin: %s",
+    "skinrestorer.command.skin.ok": "Skin alterada",
+    "skinrestorer.command.skin.loading": "Carregando skin...",
+    "skinrestorer.command.skin.config_reloaded": "Configuração recarregada"
+}

common/src/main/resources/assets/skinrestorer/lang/ru_ru.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Применены изменения скина для %s",
+    "skinrestorer.command.skin.no_changes": "Изменений скина нет",
+    "skinrestorer.command.skin.failed": "Не удалось изменить скин: %s",
+    "skinrestorer.command.skin.ok": "Скин изменён",
+    "skinrestorer.command.skin.loading": "Загрузка скина...",
+    "skinrestorer.command.skin.config_reloaded": "Конфигурация была перезагружена"
+}

common/src/main/resources/assets/skinrestorer/lang/tr_tr.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "%s için skin değişiklikleri uygulandı",
+    "skinrestorer.command.skin.no_changes": "Skin değişikliği yok",
+    "skinrestorer.command.skin.failed": "Skin değiştirme başarısız: %s",
+    "skinrestorer.command.skin.ok": "Skin değiştirildi",
+    "skinrestorer.command.skin.loading": "Skin yükleniyor...",
+    "skinrestorer.command.skin.config_reloaded": "Yapılandırma yeniden yüklendi"
+}

common/src/main/resources/assets/skinrestorer/lang/uk_ua.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Зміни скіна застосовані для %s",
+    "skinrestorer.command.skin.no_changes": "Змін скіна немає",
+    "skinrestorer.command.skin.failed": "Не вдалося змінити скіна: %s",
+    "skinrestorer.command.skin.ok": "Скін змінено",
+    "skinrestorer.command.skin.loading": "Завантаження скіна...",
+    "skinrestorer.command.skin.config_reloaded": "Конфігурацію перезавантажено"
+}

common/src/main/resources/assets/skinrestorer/lang/vi_vn.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "Áp dụng thay đổi skin cho %s",
+    "skinrestorer.command.skin.no_changes": "Không có thay đổi skin",
+    "skinrestorer.command.skin.failed": "Thay đổi skin thất bại: %s",
+    "skinrestorer.command.skin.ok": "Đã thay đổi skin",
+    "skinrestorer.command.skin.loading": "Đang tải skin...",
+    "skinrestorer.command.skin.config_reloaded": "Cấu hình đã được tải lại"
+}

common/src/main/resources/assets/skinrestorer/lang/zh_cn.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "应用的皮肤更改 %s",
+    "skinrestorer.command.skin.no_changes": "没有皮肤更改",
+    "skinrestorer.command.skin.failed": "更改皮肤失败：%s",
+    "skinrestorer.command.skin.ok": "皮肤已更改",
+    "skinrestorer.command.skin.loading": "正在加载皮肤...",
+    "skinrestorer.command.skin.config_reloaded": "配置已重新加载"
+}

common/src/main/resources/assets/skinrestorer/lang/zh_tw.json

@@ -0,0 +1,8 @@
+{
+    "skinrestorer.command.skin.affected_players": "已變更 %s 的外觀",
+    "skinrestorer.command.skin.no_changes": "沒有外觀變更",
+    "skinrestorer.command.skin.failed": "變更外觀失敗：%s",
+    "skinrestorer.command.skin.ok": "已變更外觀",
+    "skinrestorer.command.skin.loading": "正在載入外觀...",
+    "skinrestorer.command.skin.config_reloaded": "配置已重新載入"
+}

common/src/main/resources/pack.mcmeta

@@ -0,0 +1,6 @@
+{
+    "pack": {
+        "description": "${mod_id}",
+        "pack_format": 8
+    }
+}

common/src/main/resources/skinrestorer.accesswidener

@@ -0,0 +1,3 @@
+accessWidener v2 named
+
+accessible class net/minecraft/server/players/GameProfileCache$GameProfileInfo

common/src/main/resources/skinrestorer.mixins.json

@@ -0,0 +1,19 @@
+{
+    "required": true,
+    "minVersion": "0.8",
+    "package": "net.lionarius.skinrestorer.mixin",
+    "compatibilityLevel": "JAVA_17",
+    "priority": 1100,
+    "refmap": "${mod_id}.refmap.json",
+    "mixins": [
+        "ChunkMapAccessor",
+        "PlayerListMixin",
+        "ServerLoginPacketListenerImplMixin",
+        "TrackedEntityAccessorInvoker",
+        "SkullBlockEntityMixin",
+        "GameProfileCacheAccessor"
+    ],
+    "injectors": {
+        "defaultRequire": 1
+    }
+}