Hello

.dockerignore

@@ -0,0 +1,47 @@
+.git/
+
+# 依存関係
+node_modules/
+bun.lock
+
+# ログファイル
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# ランタイムファイル
+pids/
+*.pid
+*.seed
+*.pid.lock
+
+# カバレッジディレクトリ
+coverage/
+.nyc_output
+
+# ビルド出力
+dist/
+build/
+
+# 環境変数ファイル
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# IDEファイル
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OSファイル
+.DS_Store
+Thumbs.db
+
+# テストファイル
+__tests__/

.editorconfig

@@ -0,0 +1,8 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+insert_final_newline = true

.gitattributes

@@ -1,35 +0,0 @@
-*.7z filter=lfs diff=lfs merge=lfs -text
-*.arrow filter=lfs diff=lfs merge=lfs -text
-*.bin filter=lfs diff=lfs merge=lfs -text
-*.bz2 filter=lfs diff=lfs merge=lfs -text
-*.ckpt filter=lfs diff=lfs merge=lfs -text
-*.ftz filter=lfs diff=lfs merge=lfs -text
-*.gz filter=lfs diff=lfs merge=lfs -text
-*.h5 filter=lfs diff=lfs merge=lfs -text
-*.joblib filter=lfs diff=lfs merge=lfs -text
-*.lfs.* filter=lfs diff=lfs merge=lfs -text
-*.mlmodel filter=lfs diff=lfs merge=lfs -text
-*.model filter=lfs diff=lfs merge=lfs -text
-*.msgpack filter=lfs diff=lfs merge=lfs -text
-*.npy filter=lfs diff=lfs merge=lfs -text
-*.npz filter=lfs diff=lfs merge=lfs -text
-*.onnx filter=lfs diff=lfs merge=lfs -text
-*.ot filter=lfs diff=lfs merge=lfs -text
-*.parquet filter=lfs diff=lfs merge=lfs -text
-*.pb filter=lfs diff=lfs merge=lfs -text
-*.pickle filter=lfs diff=lfs merge=lfs -text
-*.pkl filter=lfs diff=lfs merge=lfs -text
-*.pt filter=lfs diff=lfs merge=lfs -text
-*.pth filter=lfs diff=lfs merge=lfs -text
-*.rar filter=lfs diff=lfs merge=lfs -text
-*.safetensors filter=lfs diff=lfs merge=lfs -text
-saved_model/**/* filter=lfs diff=lfs merge=lfs -text
-*.tar.* filter=lfs diff=lfs merge=lfs -text
-*.tar filter=lfs diff=lfs merge=lfs -text
-*.tflite filter=lfs diff=lfs merge=lfs -text
-*.tgz filter=lfs diff=lfs merge=lfs -text
-*.wasm filter=lfs diff=lfs merge=lfs -text
-*.xz filter=lfs diff=lfs merge=lfs -text
-*.zip filter=lfs diff=lfs merge=lfs -text
-*.zst filter=lfs diff=lfs merge=lfs -text
-*tfevents* filter=lfs diff=lfs merge=lfs -text

.gitignore

@@ -0,0 +1,34 @@
+# dependencies (bun install)
+node_modules
+
+# output
+out
+dist
+*.tgz
+
+# code coverage
+coverage
+*.lcov
+
+# logs
+logs
+_.log
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# caches
+.eslintcache
+.cache
+*.tsbuildinfo
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store

.prettierrc

@@ -0,0 +1,9 @@
+{
+  "printWidth": 120,
+  "semi": true,
+  "singleQuote": true,
+  "quoteProps": "as-needed",
+  "trailingComma": "all",
+  "bracketSpacing": true,
+  "arrowParens": "always"
+}

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "editor.formatOnSave": true
+}

Dockerfile

@@ -0,0 +1,31 @@
+# Bunベースイメージを使用
+# FROM oven/bun:alpine AS base
+FROM oven/bun:alpine
+
+# ユーザー設定（Hugging Faceの要件に従ってUID 1000）
+# RUN adduser -D -u 1000 user
+
+# 作業ディレクトリを設定
+WORKDIR /app
+
+# パッケージマネージャのキャッシュを利用するためにpackage.jsonを先にコピー
+# COPY --chown=user:user package.json bun.lock ./
+
+# 依存関係をインストール
+# RUN bun install --frozen-lockfile
+
+# ソースコードをコピー
+COPY . .
+
+# ユーザーを切り替え
+# USER user
+
+# ポートを公開（Hugging Face Spacesではapp_port設定と合わせる）
+EXPOSE 3000
+
+RUN  bun install --production \
+  && bun pm cache rm \
+  && chmod -R 777 /app
+
+# アプリケーションを起動
+CMD ["bun", "run", "start"]

LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+  A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate.  Many developers of free software are heartened and
+encouraged by the resulting cooperation.  However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+  The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community.  It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server.  Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
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+
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+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
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+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
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+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -1,10 +1,14 @@
 ---
-title: Line Stamp Api Proxy
-emoji: 🔥
-colorFrom: green
-colorTo: red
+title: Proxy Server for LINE Store API and CDN
+emoji: 🐧
+colorFrom: blue
+colorTo: purple
 sdk: docker
-pinned: false
+app_port: 3000
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# line-stamp-api-proxy
+
+Proxy server for LINE store API and CDN.
+
+For educational and research purposes only.

biome.json

@@ -0,0 +1,31 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": { "enabled": true, "clientKind": "git", "useIgnoreFile": true },
+  "files": { "ignoreUnknown": false, "ignore": [] },
+  "formatter": {
+    "enabled": true,
+    "useEditorconfig": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 120,
+    "attributePosition": "auto",
+    "bracketSpacing": true
+  },
+  "organizeImports": { "enabled": true },
+  "linter": { "enabled": false, "rules": { "recommended": true } },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "double",
+      "quoteProperties": "asNeeded",
+      "trailingCommas": "all",
+      "semicolons": "always",
+      "arrowParentheses": "always",
+      "bracketSameLine": false,
+      "quoteStyle": "single",
+      "attributePosition": "auto",
+      "bracketSpacing": true
+    }
+  }
+}

bun.lock

@@ -0,0 +1,63 @@
+{
+  "lockfileVersion": 1,
+  "workspaces": {
+    "": {
+      "name": "line-stamp-api-proxy",
+      "dependencies": {
+        "hono": "^4.9.6",
+        "ky": "^1.9.1",
+        "log4js": "^6.9.1",
+        "yaml": "^2.8.1",
+      },
+      "devDependencies": {
+        "@types/bun": "latest",
+      },
+      "peerDependencies": {
+        "typescript": "^5",
+      },
+    },
+  },
+  "packages": {
+    "@types/bun": ["@types/bun@1.2.21", "", { "dependencies": { "bun-types": "1.2.21" } }, "sha512-NiDnvEqmbfQ6dmZ3EeUO577s4P5bf4HCTXtI6trMc6f6RzirY5IrF3aIookuSpyslFzrnvv2lmEWv5HyC1X79A=="],
+
+    "@types/node": ["@types/node@24.3.0", "", { "dependencies": { "undici-types": "~7.10.0" } }, "sha512-aPTXCrfwnDLj4VvXrm+UUCQjNEvJgNA8s5F1cvwQU+3KNltTOkBm1j30uNLyqqPNe7gE3KFzImYoZEfLhp4Yow=="],
+
+    "@types/react": ["@types/react@19.1.12", "", { "dependencies": { "csstype": "^3.0.2" } }, "sha512-cMoR+FoAf/Jyq6+Df2/Z41jISvGZZ2eTlnsaJRptmZ76Caldwy1odD4xTr/gNV9VLj0AWgg/nmkevIyUfIIq5w=="],
+
+    "bun-types": ["bun-types@1.2.21", "", { "dependencies": { "@types/node": "*" }, "peerDependencies": { "@types/react": "^19" } }, "sha512-sa2Tj77Ijc/NTLS0/Odjq/qngmEPZfbfnOERi0KRUYhT9R8M4VBioWVmMWE5GrYbKMc+5lVybXygLdibHaqVqw=="],
+
+    "csstype": ["csstype@3.1.3", "", {}, "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw=="],
+
+    "date-format": ["date-format@4.0.14", "", {}, "sha512-39BOQLs9ZjKh0/patS9nrT8wc3ioX3/eA/zgbKNopnF2wCqJEoxywwwElATYvRsXdnOxA/OQeQoFZ3rFjVajhg=="],
+
+    "debug": ["debug@4.4.1", "", { "dependencies": { "ms": "^2.1.3" } }, "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ=="],
+
+    "flatted": ["flatted@3.3.3", "", {}, "sha512-GX+ysw4PBCz0PzosHDepZGANEuFCMLrnRTiEy9McGjmkCQYwRq4A/X786G/fjM/+OjsWSU1ZrY5qyARZmO/uwg=="],
+
+    "fs-extra": ["fs-extra@8.1.0", "", { "dependencies": { "graceful-fs": "^4.2.0", "jsonfile": "^4.0.0", "universalify": "^0.1.0" } }, "sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g=="],
+
+    "graceful-fs": ["graceful-fs@4.2.11", "", {}, "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ=="],
+
+    "hono": ["hono@4.9.6", "", {}, "sha512-doVjXhSFvYZ7y0dNokjwwSahcrAfdz+/BCLvAMa/vHLzjj8+CFyV5xteThGUsKdkaasgN+gF2mUxao+SGLpUeA=="],
+
+    "jsonfile": ["jsonfile@4.0.0", "", { "optionalDependencies": { "graceful-fs": "^4.1.6" } }, "sha512-m6F1R3z8jjlf2imQHS2Qez5sjKWQzbuuhuJ/FKYFRZvPE3PuHcSMVZzfsLhGVOkfd20obL5SWEBew5ShlquNxg=="],
+
+    "ky": ["ky@1.9.1", "", {}, "sha512-WGzpBn57klhxsqRTEABAqF4tqTtqCuxoTIv9m6nIZtMMFTVcrHp7bRDWblzFIfqkb47+OhTztOgHn6A4xItmqg=="],
+
+    "log4js": ["log4js@6.9.1", "", { "dependencies": { "date-format": "^4.0.14", "debug": "^4.3.4", "flatted": "^3.2.7", "rfdc": "^1.3.0", "streamroller": "^3.1.5" } }, "sha512-1somDdy9sChrr9/f4UlzhdaGfDR2c/SaD2a4T7qEkG4jTS57/B3qmnjLYePwQ8cqWnUHZI0iAKxMBpCZICiZ2g=="],
+
+    "ms": ["ms@2.1.3", "", {}, "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="],
+
+    "rfdc": ["rfdc@1.4.1", "", {}, "sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA=="],
+
+    "streamroller": ["streamroller@3.1.5", "", { "dependencies": { "date-format": "^4.0.14", "debug": "^4.3.4", "fs-extra": "^8.1.0" } }, "sha512-KFxaM7XT+irxvdqSP1LGLgNWbYN7ay5owZ3r/8t77p+EtSUAfUgtl7be3xtqtOmGUl9K9YPO2ca8133RlTjvKw=="],
+
+    "typescript": ["typescript@5.9.2", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A=="],
+
+    "undici-types": ["undici-types@7.10.0", "", {}, "sha512-t5Fy/nfn+14LuOc2KNYg75vZqClpAiqscVvMygNnlsHBFpSXdJaYtXMcdNLpl/Qvc3P2cB3s6lOV51nqsFq4ag=="],
+
+    "universalify": ["universalify@0.1.2", "", {}, "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="],
+
+    "yaml": ["yaml@2.8.1", "", { "bin": { "yaml": "bin.mjs" } }, "sha512-lcYcMxX2PO9XMGvAJkJ3OsNMw+/7FKes7/hgerGUYWIoWu5j/+YQqcZr5JnPZWzOsEBgMbSbiSTn/dv/69Mkpw=="],
+  }
+}

config/config.yaml

@@ -0,0 +1,15 @@
+request_timeout: 30000
+log4js:
+  appenders:
+    console:
+      type: console
+      layout:
+        type: pattern
+        pattern: "%[%d{hh:mm:ss.SSS} %-5.0p >%] %m"
+  categories:
+    default:
+      appenders: ["console"]
+      level: trace
+userAgent:
+  chromeWindows: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36"
+  lineIos: "LINE/2025.729.2024 CFNetwork/3859.100.1 Darwin/25.0.0"

docs/LINE_API_SPEC.md

@@ -0,0 +1,219 @@
+# LINE Store Web API
+
+Base URL: `https://store.line.me`
+
+## Search product
+
+`GET /api/search/:category`
+
+Request Headers
+
+- `Accept-Language`: ISO country code
+  - Used to determine the language of search results
+
+Path Parameters
+
+- `category`: 'sticker' | 'emoji' | 'theme' | 'family'
+  - 'sticker'='スタンプ', 'emoji'='絵文字', 'theme'='着せ替え', 'family'='その他'
+
+Query Parameters
+
+- `query`: string
+- `category`: 'sticker' | 'emoji' | 'theme' | 'family'
+  - Must match the path parameters exactly
+- `type`: 'ALL' | 'OFFICIAL' | 'CREATORS' | 'SUBSCRIPTION'
+  - 'ALL'='すべて', 'OFFICIAL'='公式', 'CREATORS'='クリエイターズ', 'SUBSCRIPTION'='LINE スタンプ プレミアム'
+- `offset`: number
+- `limit`: number
+
+---
+
+# LINE Product CDN Spec
+
+Base URL: `https://stickershop.line-scdn.net`
+
+## Stickers
+
+Path Parameters
+
+- `productId`: number
+  - Sticker product ID (integer)
+
+### Metadata JSON
+
+`GET /stickershop/v1/product/:productId/:deviceType/productInfo.meta`
+
+Path Parameters
+
+- `deviceType`: 'ios' | 'android' | 'LINEStorePC'
+
+```typescript
+const stickerResourceTypes = ['STATIC', 'ANIMATION', 'SOUND', 'ANIMATION_SOUND'] as const;
+type productInfo_meta = {
+  packageId: number; // productId
+  onSale: boolean;
+  validDays: number;
+  title: { [lang: string]: string }; // Example: {ja: 'タイトル', en: 'Title'}
+  author: { [lang: string]: string }; // Example: {ja: '名前', en: 'Author'}
+  price: {
+    country: string;
+    currency: string;
+    symbol: string;
+    price: number;
+  }[];
+  stickers: {
+    id: number; // stickerId
+    width: number; // image width
+    height: number; // image height
+  }[];
+  hasAnimation: boolean;
+  hasSound: boolean;
+  stickerResourceType: (typeof stickerResourceTypes)[number];
+};
+```
+
+### Product packed zip
+
+`GET /stickershop/v1/product/:productId/:deviceType/:file`
+
+Path Parameters
+
+- `deviceType`: 'ios' | 'android'
+- `file`: 'stickerpack@2x.zip' | 'stickerpack.zip' | 'stickers.zip'
+  - 'stickerpack@2x.zip' = png (2x) + apng (2x) + m4a
+  - 'stickerpack.zip' = png (1x) + apng (1x) + m4a
+  - 'stickers.zip' = png (1x) STATIC
+  - android stickerpack@2x.zip is not available
+
+### Independent sticker
+
+`GET /stickershop/v1/sticker/:stickerId/:deviceType/:file`
+
+Path Parameters
+
+- `stickerId`: number
+- `deviceType`: 'ios' | 'android'
+- `file`: 'sticker@2x.png' | 'sticker.png'
+  - android sticker@2x.png is not available
+
+### Product thumbnail
+
+`GET /stickershop/v1/product/:productId/LINEStorePC/main.png`
+
+### Independent sticker sound
+
+`GET /stickershop/v1/sticker/:stickerId/:deviceType/sticker_sound.m4a`
+
+Path Parameters
+
+- `stickerId`: number
+- `deviceType`: 'ios' | 'android' | 'LINEStorePC'
+
+### Product thumbnail sound
+
+`GET /stickershop/v1/product/:productId/:deviceType/main_sound.m4a`
+
+Path Parameters
+
+- `deviceType`: 'ios' | 'android' | 'LINEStorePC'
+
+---
+
+## Sticons (emoji)
+
+Path Parameters
+
+- `productId`: string
+  - Sticons product ID (integer) 96 bit hex (deliver func is unknown)
+
+### Metadata JSON
+
+`GET /sticonshop/v1/sticon/:productId/:deviceType/meta.json`
+
+Path Parameters
+
+- `deviceType`: 'iPhone' | 'android'
+
+```typescript
+type meta_json = {
+  productId: string;
+  altTexts: { [iconIndex: string]: string };
+  orders: string[]; // array of iconIndex
+  sticonResourceType?: 'STATIC' | 'ANIMATION'; // STATIC if key does not exist
+};
+```
+
+### Product packed zip
+
+`GET /sticonshop/v1/sticon/:productId/:deviceType/:file`
+
+Path Parameters
+
+- `deviceType`: 'iPhone' | 'android'
+- `file`: 'package_animation.zip' | 'package.zip'
+  - 'package_animation.zip' = APNG
+  - 'package.zip' = PNG
+
+### Independent sticon
+
+`GET /sticonshop/v1/sticon/:productId/:deviceType/:file`
+
+Path Parameters
+
+- `deviceType`: 'iPhone' | 'android'
+- `file`: `${iconIndex}_animation.png` | `${iconIndex}.png`
+  - `iconIndex`: 3-digit icon index string (001-999)
+  - `${iconIndex}_animation.png` = APNG
+  - `${iconIndex}.png` = PNG
+
+### Product thumbnail
+
+`GET /sticonshop/v1/product/:productId/iPhone/main.png`
+
+---
+
+## Themes
+
+?
+
+---
+
+## Family
+
+?
+
+---
+
+## Product packed zip structure
+
+### Stickers
+
+- stickerpack@2x.zip | stickerpack.zip
+  - productInfo.meta (JSON)
+  - `${stickerId}@2x.png` | `${stickerId}.png` (PNG STATIC)
+  - `${stickerId}_key@2x.png` | `${stickerId}_key.png` (PNG STATIC low quality)
+  - tab_on@2x.png | tab_on.png (small thumbnail)
+  - tab_off@2x.png | tab_off.png (small thumbnail grayscale)
+  - sound
+    - `${stickerId}.m4a` (M4A SOUND)
+  - animation | animation@2x
+    - `${stickerId}@2x.png` | `${stickerId}.png` (APNG ANIMATION)
+- stickers@2x.zip | stickers.zip
+  - productInfo.meta
+  - `${stickerId}@2x.png` | `${stickerId}.png` (PNG STATIC)
+  - `${stickerId}_key@2x.png` | `${stickerId}_key.png` (PNG STATIC low quality)
+  - tab_on@2x.png | tab_on.png (small thumbnail)
+  - tab_off@2x.png | tab_off.png (small thumbnail grayscale)
+
+`sound` and `animation` folder may not exist depending on the resource type. (example: STATIC)
+
+### Sticons (emoji)
+
+- package_animation.zip
+  - meta.json
+  - `${iconIndex}_animation.png` (APNG)
+  - `${iconIndex}_key_animation.png` (APNG)
+- package.zip
+  - meta.json
+  - `${iconIndex}.png` (PNG)
+  - `${iconIndex}_key.png` (PNG)

package.json

@@ -0,0 +1,23 @@
+{
+  "name": "line-stamp-api-proxy",
+  "version": "0.1.0",
+  "module": "src/main.ts",
+  "type": "module",
+  "private": true,
+  "license": "AGPL-3.0-or-later",
+  "scripts": {
+    "start": "bun run src/main.ts"
+  },
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5"
+  },
+  "dependencies": {
+    "hono": "^4.9.6",
+    "ky": "^1.9.1",
+    "log4js": "^6.9.1",
+    "yaml": "^2.8.1"
+  }
+}

src/main.ts

@@ -0,0 +1,90 @@
+import { Hono } from 'hono';
+import { cors } from 'hono/cors';
+import { logger } from './utils/logger';
+import { loadConfig } from './utils/config';
+
+const config = loadConfig();
+const requestTimeout = config.request_timeout || 30000;
+
+const app = new Hono();
+
+// CORSミドルウェア: すべての制限を無効化
+app.use(
+  '*',
+  cors({
+    origin: '*',
+    allowMethods: ['*'],
+    allowHeaders: ['*'],
+    exposeHeaders: ['*'],
+    maxAge: 86400,
+  }),
+);
+
+// リクエストログミドルウェア
+app.use('*', async (c, next) => {
+  const start = Date.now();
+  await next();
+  const end = Date.now();
+  const responseTime = end - start;
+
+  if (c.req.path.includes('.well-known/appspecific/com.chrome.devtools.json')) return;
+
+  const decodedQuery = Object.entries(c.req.query())
+    .map(([key, value]) => `${key}=${decodeURIComponent(value)}`)
+    .join('&');
+
+  const fullPath = decodedQuery ? `${c.req.path}?${decodedQuery}` : c.req.path;
+
+  logger.debug(`[${c.req.method}] [${c.res.status}] ${fullPath} - ${responseTime}ms`);
+});
+
+app.use('*', async (c, next) => {
+  await next();
+  c.header('Server', 'THIS SERVER IS POWERED BY PENGUINS');
+});
+
+// ベースルート
+app.get('/', (c) => {
+  return c.text(
+    `Proxy Server for LINE Store API and CDN
+by daydreamer-json
+
+This server is powered by penguins uwu (and Hono)
+
+---
+
+Example:
+- /api/search?category=sticker&type=ALL&query=koupen&offset=0&limit=1
+- /api/download/sticker/zip/18537?device_type=ios&is_static=false&size=2
+- /api/download/sticker/single/23214968?device_type=android&is_static=false&size=1
+- /api/download/sticker/thumb/18537?device_type=ios
+- /api/download/sticker/sound/single/350279022?device_type=ios
+- /api/download/sticker/sound/thumb/18537?device_type=ios`,
+    200,
+    {
+      'Content-Type': 'text/plain',
+    },
+  );
+});
+
+// APIルートグループ
+const apiRoutes = app.basePath('/api');
+
+// ルートを登録
+import searchRoutes from './routes/search';
+import metaRoutes from './routes/meta';
+import stickerRoutes from './routes/download/sticker';
+import emojiRoutes from './routes/download/emoji';
+
+apiRoutes.route('/search', searchRoutes);
+apiRoutes.route('/meta', metaRoutes);
+apiRoutes.route('/download/sticker', stickerRoutes);
+apiRoutes.route('/download/emoji', emojiRoutes);
+
+// サーバー起動
+const port = process.env.PORT || 3000;
+logger.info(`Server running on port ${port}`);
+Bun.serve({
+  port,
+  fetch: app.fetch,
+});

src/routes/download/emoji.ts

@@ -0,0 +1,157 @@
+import { Hono } from 'hono';
+import ky from 'ky';
+import { logger } from '../../utils/logger';
+import { loadConfig } from '../../utils/config';
+
+const config = loadConfig();
+const requestTimeout = config.request_timeout || 30000;
+
+const app = new Hono();
+
+// ZIPダウンロードエンドポイント
+app.get('/zip/:productId', async (c) => {
+  const validDeviceTypes = ['ios', 'android'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+  const transformedValidDeviceTypes = { ios: 'iPhone', android: 'android' } as const satisfies Record<
+    DeviceType,
+    string
+  >;
+  type DeviceTypeTransformed = (typeof transformedValidDeviceTypes)[DeviceType];
+
+  const productId: string = c.req.param('productId') || 'null';
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+  const isStaticFlag: boolean = c.req.query('is_static') === 'true' || false;
+
+  if (!/^[0-9a-f]+$/.test(productId)) return c.text('Invalid productId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/sticonshop/v1/sticon/${productId}/${
+        transformedValidDeviceTypes[deviceType]
+      }/package${isStaticFlag ? '' : '_animation'}.zip`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    filteredHeaders.set(
+      'Content-Disposition',
+      `attachment; filename="${productId}_${deviceType}_${isStaticFlag ? '_static' : ''}.zip"`,
+    );
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticon ZIP download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+// 個別絵文字ダウンロードエンドポイント
+app.get('/single/:productId/:iconIndex', async (c) => {
+  const validDeviceTypes = ['ios', 'android'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+  const transformedValidDeviceTypes = { ios: 'iPhone', android: 'android' } as const satisfies Record<
+    DeviceType,
+    string
+  >;
+  type DeviceTypeTransformed = (typeof transformedValidDeviceTypes)[DeviceType];
+
+  const productId: string = c.req.param('productId') || 'null';
+  const iconIndex: number = parseInt(c.req.param('iconIndex') || '-1');
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+  const isStaticFlag: boolean = c.req.query('is_static') === 'true' || false;
+  // const variantSize: number = parseInt(c.req.query('size') || '2');
+
+  if (!/^[0-9a-f]+$/.test(productId)) return c.text('Invalid productId', 400);
+  if (iconIndex === -1) return c.text('Invalid iconIndex', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+  // if (variantSize > 2 || variantSize < 1) return c.text('Invalid size', 400);
+  // if (deviceType === 'android' && variantSize === 2) return c.text('Invalid device_type or size', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/sticonshop/v1/sticon/${productId}/${
+        transformedValidDeviceTypes[deviceType]
+      }/${String(iconIndex).padStart(3, '0')}${isStaticFlag ? '' : '_animation'}.png`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    // filteredHeaders.set(
+    //   'Content-Disposition',
+    //   `attachment; filename="${productId}_${String(iconIndex).padStart(3, '0')}_${deviceType}_${
+    //     isStaticFlag ? '_static' : ''
+    //   }.png"`,
+    // );
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticon image download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+// 絵文字サムネイルダウンロードエンドポイント
+app.get('/thumb/:productId', async (c) => {
+  const productId: string = c.req.param('productId') || 'null';
+  if (!/^[0-9a-f]+$/.test(productId)) return c.text('Invalid productId', 400);
+
+  try {
+    const response = await ky(`https://stickershop.line-scdn.net/sticonshop/v1/product/${productId}/iPhone/main.png`, {
+      headers: { 'User-Agent': config.userAgent.lineIos },
+      timeout: requestTimeout,
+    });
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    // filteredHeaders.set('Content-Disposition', `attachment; filename="${productId}_thumb.png"`);
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    logger.error('Sticon thumbnail download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+export default app;

src/routes/download/sticker.ts

@@ -0,0 +1,251 @@
+import { Hono } from 'hono';
+import ky from 'ky';
+import { logger } from '../../utils/logger';
+import { loadConfig } from '../../utils/config';
+
+const config = loadConfig();
+const requestTimeout = config.request_timeout || 30000;
+
+const app = new Hono();
+
+// ZIPダウンロードエンドポイント
+app.get('/zip/:productId', async (c) => {
+  const validDeviceTypes = ['ios', 'android'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+
+  const productId: number = parseInt(c.req.param('productId') || '-1');
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+  const isStaticFlag: boolean = c.req.query('is_static') === 'true' || false;
+  const variantSize: number = parseInt(c.req.query('size') || '2');
+
+  if (productId === -1) return c.text('Invalid productId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+  if (variantSize > 2 || variantSize < 1) return c.text('Invalid size', 400);
+  if (deviceType === 'android' && variantSize === 2) return c.text('Invalid device_type or size', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/stickershop/v1/product/${productId}/${deviceType}/${
+        isStaticFlag ? 'stickers' : 'stickerpack'
+      }${variantSize === 2 ? '@2x' : ''}.zip`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    filteredHeaders.set(
+      'Content-Disposition',
+      `attachment; filename="${productId}_${deviceType}_${variantSize}x${isStaticFlag ? '_static' : ''}.zip"`,
+    );
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticker ZIP download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+// 個別ステッカーダウンロードエンドポイント
+app.get('/single/:stickerId', async (c) => {
+  const validDeviceTypes = ['ios', 'android'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+
+  const stickerId: number = parseInt(c.req.param('stickerId') || '-1');
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+  const isStaticFlag: boolean = c.req.query('is_static') === 'true' || false;
+  const variantSize: number = parseInt(c.req.query('size') || '2');
+
+  if (stickerId === -1) return c.text('Invalid stickerId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+  if (variantSize > 2 || variantSize < 1) return c.text('Invalid size', 400);
+  if (deviceType === 'android' && variantSize === 2) return c.text('Invalid device_type or size', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/stickershop/v1/sticker/${stickerId}/${deviceType}/sticker${
+        isStaticFlag ? '' : '_animation'
+      }${variantSize === 2 ? '@2x' : ''}.png`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    // filteredHeaders.set(
+    //   'Content-Disposition',
+    //   `attachment; filename="${stickerId}_${deviceType}_${variantSize}x${isStaticFlag ? '_static' : ''}.png"`,
+    // );
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticker download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+// サムネイルダウンロードエンドポイント
+app.get('/thumb/:productId', async (c) => {
+  const productId: number = parseInt(c.req.param('productId') || '-1');
+  if (productId === -1) return c.text('Invalid productId', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/stickershop/v1/product/${productId}/LINEStorePC/main.png`,
+      {
+        headers: { 'User-Agent': config.userAgent.chromeWindows },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    // filteredHeaders.set('Content-Disposition', `attachment; filename="${productId}_thumb.png"`);
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Thumbnail download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+// 個別ステッカーサウンドダウンロードエンドポイント
+app.get('/sound/single/:stickerId', async (c) => {
+  const validDeviceTypes = ['ios', 'android', 'pc'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+  const transformedValidDeviceTypes = { ios: 'ios', android: 'android', pc: 'LINEStorePC' } as const satisfies Record<
+    DeviceType,
+    string
+  >;
+  type DeviceTypeTransformed = (typeof transformedValidDeviceTypes)[DeviceType];
+
+  const stickerId: number = parseInt(c.req.param('stickerId') || '-1');
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+
+  if (stickerId === -1) return c.text('Invalid stickerId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/stickershop/v1/sticker/${stickerId}/${transformedValidDeviceTypes[deviceType]}/sticker_sound.m4a`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    // filteredHeaders.set(
+    //   'Content-Disposition',
+    //   `attachment; filename="${stickerId}_${deviceType}_${variantSize}x${isStaticFlag ? '_static' : ''}.png"`,
+    // );
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticker sound download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+// サムネイルサウンドダウンロードエンドポイント
+app.get('/sound/thumb/:productId', async (c) => {
+  const validDeviceTypes = ['ios', 'android', 'pc'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+  const transformedValidDeviceTypes = { ios: 'ios', android: 'android', pc: 'LINEStorePC' } as const satisfies Record<
+    DeviceType,
+    string
+  >;
+  type DeviceTypeTransformed = (typeof transformedValidDeviceTypes)[DeviceType];
+
+  const productId: number = parseInt(c.req.param('productId') || '-1');
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+
+  if (productId === -1) return c.text('Invalid productId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/stickershop/v1/product/${productId}/${transformedValidDeviceTypes[deviceType]}/main_sound.m4a`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    // filteredHeaders.set('Content-Disposition', `attachment; filename="${productId}_thumb.png"`);
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Thumbnail sound download failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+export default app;

src/routes/meta.ts

@@ -0,0 +1,99 @@
+import { Hono } from 'hono';
+import ky from 'ky';
+import { logger } from '../utils/logger';
+import { loadConfig } from '../utils/config';
+
+const config = loadConfig();
+const requestTimeout = config.request_timeout || 30000;
+
+const app = new Hono();
+
+app.get('/sticker/:productId', async (c) => {
+  const validDeviceTypes = ['ios', 'android', 'pc'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+  const transformedValidDeviceTypes = { ios: 'ios', android: 'android', pc: 'LINEStorePC' } as const satisfies Record<
+    DeviceType,
+    string
+  >;
+
+  const productId: number = parseInt(c.req.param('productId') || '-1');
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+  if (productId === -1) return c.text('Invalid productId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/stickershop/v1/product/${productId}/${transformedValidDeviceTypes[deviceType]}/productInfo.meta`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticker meta download error', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+app.get('/emoji/:productId', async (c) => {
+  const validDeviceTypes = ['ios', 'android'] as const;
+  type DeviceType = (typeof validDeviceTypes)[number];
+  const transformedValidDeviceTypes = { ios: 'iPhone', android: 'android' } as const satisfies Record<
+    DeviceType,
+    string
+  >;
+
+  const productId: string = c.req.param('productId') || 'null';
+  const deviceType: DeviceType = (c.req.query('device_type') || 'ios') as DeviceType;
+  if (!/^[0-9a-f]+$/.test(productId)) return c.text('Invalid productId', 400);
+  if (!validDeviceTypes.includes(deviceType as DeviceType)) return c.text('Invalid device_type', 400);
+
+  try {
+    const response = await ky(
+      `https://stickershop.line-scdn.net/sticonshop/v1/sticon/${productId}/${transformedValidDeviceTypes[deviceType]}/meta.json`,
+      {
+        headers: { 'User-Agent': config.userAgent.lineIos },
+        timeout: requestTimeout,
+      },
+    );
+
+    const allowedHeaders = ['Content-Type', 'ETag', 'Cache-Control', 'Last-Modified'];
+    const filteredHeaders = new Headers();
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+    filteredHeaders.set('X-Origin-Date', response.headers.get('Date')!);
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    if ((error as any).response?.status === 404) {
+      return c.text('Not Found', 404);
+    }
+    logger.error('Sticon meta download error', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+export default app;

src/routes/search.ts

@@ -0,0 +1,69 @@
+import { Hono } from 'hono';
+import ky from 'ky';
+import { logger } from '../utils/logger';
+import { loadConfig } from '../utils/config';
+
+const config = loadConfig();
+const requestTimeout = config.request_timeout || 30000;
+
+const app = new Hono();
+
+// カテゴリタイプのバリデーション
+const validCategories = ['sticker', 'emoji', 'theme', 'family'] as const;
+type Category = (typeof validCategories)[number];
+
+// タイプのバリデーション
+const validTypes = ['ALL', 'OFFICIAL', 'CREATORS', 'SUBSCRIPTION'] as const;
+type SearchType = (typeof validTypes)[number];
+
+app.get('/', async (c) => {
+  const queryParams = c.req.query();
+  const requiredParams = ['category', 'type', 'query', 'limit', 'offset'];
+
+  if (!requiredParams.every((param) => param in queryParams)) {
+    return c.text('Missing query parameter', 400);
+  }
+
+  // カテゴリのバリデーション
+  if (!validCategories.includes(queryParams.category as Category)) {
+    return c.text('Invalid category', 400);
+  }
+
+  if (queryParams.type && !validTypes.includes(queryParams.type as SearchType)) {
+    return c.text('Invalid type', 400);
+  }
+
+  const preferredLanguage = 'lang' in queryParams ? queryParams.lang : c.req.header('Accept-Language') || 'ja';
+
+  try {
+    // LINE Store APIへのリクエスト
+    const response = await ky(`https://store.line.me/api/search/${queryParams.category}`, {
+      searchParams: queryParams, // クエリパラメータをそのまま渡す
+      headers: {
+        'Accept-Language': preferredLanguage,
+        'User-Agent': config.userAgent.chromeWindows,
+      },
+      timeout: requestTimeout,
+    });
+
+    // 許可するヘッダーをフィルタリング（Content-Length追加）
+    const allowedHeaders = ['Date', 'Content-Type', 'ETag', 'Cache-Control'];
+    const filteredHeaders = new Headers();
+
+    allowedHeaders.forEach((header) => {
+      if (response.headers.has(header)) {
+        filteredHeaders.set(header, response.headers.get(header)!);
+      }
+    });
+
+    return new Response(response.body, {
+      status: response.status,
+      headers: filteredHeaders,
+    });
+  } catch (error) {
+    logger.error('LINE API request failed', error);
+    return c.text('Internal Server Error', 500);
+  }
+});
+
+export default app;

src/utils/config.ts

@@ -0,0 +1,39 @@
+import fs from 'fs';
+import YAML from 'yaml';
+
+// デフォルト設定
+const DEFAULT_CONFIG = {
+  request_timeout: 30000,
+  log4js: {
+    appenders: {
+      console: {
+        type: 'console',
+        layout: {
+          type: 'pattern',
+          pattern: '%[%d{hh:mm:ss.SSS} %-5.0p >%] %m',
+        },
+      },
+    },
+    categories: {
+      default: {
+        appenders: ['console'],
+        level: 'info',
+      },
+    },
+  },
+  userAgent: {
+    chromeWindows:
+      'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36',
+    lineIos: 'LINE/2025.729.2024 CFNetwork/3859.100.1 Darwin/25.0.0',
+  },
+};
+
+export function loadConfig() {
+  try {
+    const configFile = fs.readFileSync('config/config.yaml', 'utf8');
+    return YAML.parse(configFile);
+  } catch (error) {
+    console.warn('設定ファイルの読み込みに失敗しました。デフォルト設定を使用します。', error);
+    return DEFAULT_CONFIG;
+  }
+}

src/utils/logger.ts

@@ -0,0 +1,22 @@
+import log4js from 'log4js';
+import { loadConfig } from './config';
+
+const config = loadConfig();
+const logFormat = config?.log4js?.appenders?.console?.layout?.pattern || '%[%d{hh:mm:ss.SSS} %-5.0p >%] %m';
+
+log4js.configure({
+  appenders: {
+    console: {
+      type: 'console',
+      layout: { type: 'pattern', pattern: logFormat },
+    },
+  },
+  categories: {
+    default: {
+      appenders: ['console'],
+      level: config?.log4js?.categories?.default?.level || 'info',
+    },
+  },
+});
+
+export const logger = log4js.getLogger();

tsconfig.json

@@ -0,0 +1,29 @@
+{
+  "compilerOptions": {
+    // Environment setup & latest features
+    "lib": ["ESNext"],
+    "target": "ESNext",
+    "module": "Preserve",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedIndexedAccess": true,
+    "noImplicitOverride": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}