readme: 调整readme细节

.gitignore

@@ -0,0 +1 @@
+**/.DS_Store

README.md

@@ -0,0 +1,57 @@
+# 介绍
+
+该项目使用TrustMark实现盲水印的添加和提取，在添加盲水印后经过微信，qq等平台转发后，或者轻度裁剪，修改，依然可保留盲水印
+
+# 什么是盲水印
+
+肉眼看不见的数字水印，提取水印时不需要原始原图
+
+特点：
+
+1. **不可感知**：把信息编码进图像像素 / 频域，人眼看不出差别，不破坏原图观感；和叠加 Logo、文字的**明水印**完全不同。
+
+2. **盲提取**：不需要原始载体文件，只拿被分发后的图片，就能解码出水印信息（半盲水印提取时仍需要原图。
+
+3. **鲁棒性（抗攻击）**：经过 JPEG 压缩、缩放、裁剪、滤镜、甚至屏幕拍照翻拍，多数算法依然可以提取水印（不同算法强度差异很大）。
+
+4. **信息载体**：可以嵌入文字、ID、唯一序列号。
+
+# 用TrustMark的优点
+
+1. 极强的传播鲁棒性
+
+2. 肉眼完全无感，画质损失极小
+
+3. 盲提取，不需要原图
+
+4. 适配 AI 生成内容溯源场景
+
+# 如何运行本项目
+准备环境：
+
+```
+bun
+python3
+```
+
+运行步骤：
+
+``` bash
+# 运行桥接层后端
+cd backend-bridge
+python3 main.py
+# 当输出
+# INFO: Uvicorn running on http://localhost:8081
+# 即运行成功
+
+# 运行后端程序
+cd ../backend
+bun install && bun run dev
+# 当输出
+# Started development server: http://localhost:8080
+# 即运行成功
+```
+
+请求文档请参考: ./docs/api-doc.html
+
+openapi文档请参考: ./docs/openapi.json

backend/README.md

@@ -1,15 +0,0 @@
-# hono
-
-To install dependencies:
-
-```bash
-bun install
-```
-
-To run:
-
-```bash
-bun run index.ts
-```
-
-This project was created using `bun init` in bun v1.4.2. [Bun](https://bun.com) is a fast all-in-one JavaScript runtime.

backend/bun.lock

@@ -5,7 +5,7 @@
     "": {
       "name": "hono",
       "dependencies": {
-        "@contentauth/c2pa-node": "^0.9.8",
+        "file-type": "^22.1.1",
         "hono": "^4.13.10",
       },
       "devDependencies": {
@@ -17,11 +17,11 @@
     },
   },
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+    "@borewit/text-codec": ["@borewit/text-codec@0.2.2", "", {}, "sha512-DDaRehssg1aNrH4+2hnj1B7vnUGEjU6OIlyRdkMd0aUdIUvKXrJfXsy8LVtXAy7DRvYVluWbMspsRhz2lcW0mQ=="],
 
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-    "@contentauth/c2pa-utilities": ["@contentauth/c2pa-utilities@0.3.1", "", { "dependencies": { "@contentauth/c2pa-types": "0.7.5", "ts-deepmerge": "^8.0.0" } }, "sha512-vNYXiKdHGLXTjKTGuXisG1DE9s3oXQ2Qwm/teGQ5zMuRMEEqQPUrQ0rYvB0+Po7eAoAxms/ZgX3oXmgp9jiBVg=="],
+    "@tokenizer/token": ["@tokenizer/token@0.3.0", "", {}, "sha512-OvjF+z51L3ov0OyAU0duzsYuvO01PH7x4t6DJx+guahgTnBHkhJdG7soQeTSFLWN3efnHyibZ4Z8l2EuWwJN3A=="],
 
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@@ -67,122 +67,26 @@
 
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-
-    "traverse": ["traverse@0.3.9", "", {}, "sha512-iawgk0hLP3SxGKDfnDJf8wTz4p2qImnyihM5Hh/sGvQ3K37dPi/w8sRhdNIxYA1TwFwc5mDhIJq+O0RsvXBKdQ=="],
-
-    "ts-deepmerge": ["ts-deepmerge@8.0.0", "", {}, "sha512-133O+10nJmVI8w5xeVZPEv5PIrv7iaUae07wv1aH8XJH95Ur6YIhWAPhPyP1YPlbPS9fCVcNIZTu7m8urRVF0A=="],
+    "token-types": ["token-types@6.1.2", "", { "dependencies": { "@borewit/text-codec": "^0.2.1", "@tokenizer/token": "^0.3.0", "ieee754": "^1.2.1" } }, "sha512-dRXchy+C0IgK8WPC6xvCHFRIWYUbqqdEIKPaKo/AcTUNzwLTK6AH7RjdLWsEZcAN/TBdtfUw3PYEgPr5VPr6ww=="],
 
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+    "uint8array-extras": ["uint8array-extras@1.6.0", "", {}, "sha512-8iAasVS4wUx0gPLjH8Xtz2PeDzTSiy8QiLGu2DT3X5GU+egFEQhpnbtkehbAwjvDcxIERmCYcysiODFmE3Ud0Q=="],
+
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-
-    "universalify": ["universalify@2.0.1", "", {}, "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw=="],
-
-    "unzipper": ["unzipper@0.10.14", "", { "dependencies": { "big-integer": "^1.6.17", "binary": "~0.3.0", "bluebird": "~3.4.1", "buffer-indexof-polyfill": "~1.0.0", "duplexer2": "~0.1.4", "fstream": "^1.0.12", "graceful-fs": "^4.2.2", "listenercount": "~1.0.1", "readable-stream": "~2.3.6", "setimmediate": "~1.0.4" } }, "sha512-ti4wZj+0bQTiX2KmKWuwj7lhV+2n//uXEotUmGuQqrbVZSEGFMbI68+c6JCQ8aAmUWYvtHEz2A8K6wXvueR/6g=="],
-
-    "util-deprecate": ["util-deprecate@1.0.2", "", {}, "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="],
-
-    "web-streams-polyfill": ["web-streams-polyfill@3.3.3", "", {}, "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw=="],
-
-    "wrappy": ["wrappy@1.0.2", "", {}, "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="],
   }
 }

backend/package.json

@@ -13,7 +13,7 @@
   },
   "type": "module",
   "dependencies": {
-    "@contentauth/c2pa-node": "^0.9.8",
+    "file-type": "^22.1.1",
     "hono": "^4.13.10"
   }
 }

backend/src/index.ts

@@ -1,17 +1,35 @@
+import { fileTypeFromBuffer } from "file-type";
 import { Hono } from "hono";
 import { validator } from "hono/validator";
 
+let canConnectBridgeServer: boolean = true
+try {
+    await Bun.connect({
+        hostname: "localhost",
+        port: 8081,
+        socket: {
+            data: () => { },
+        },
+    })
+} catch (e) {
+    canConnectBridgeServer = false
+}
+
+if (!canConnectBridgeServer) {
+    console.log("Connect to bridge: localhost:8081 failed");
+    process.exit(1)
+}
+
 const appTmp = new Hono()
 const app = appTmp.basePath("/watermark")
-
 /**
  * param: image: 图片大小必须<=10MB
  * param: payload: 必须是长度<=8的字母大小写或数字组合
- * param: strength: 取值>=0,一般取值0~1.5
+ * param: strength: 取值0~100,一般取值0~1.5
  * param: outputType: 输出的文件类型，只允许 jpeg | png
  */
 app.post("/encode",
-    validator("form", (val, c) => {
+    validator("form", async (val, c) => {
         const image = val.image
         const payload = val.payload
         const strength = val.strength
@@ -45,6 +63,26 @@ app.post("/encode",
             })
         }
 
+        // 通过魔术数字判断文件真实类型
+        const imageBuffer = await (image as File).arrayBuffer()
+        const unit8Image = new Uint8Array(imageBuffer)
+        const imageType = await fileTypeFromBuffer(unit8Image)
+        if (!imageType) {
+            c.status(400)
+            return c.json({
+                code: 400,
+                msg: "Image type is invalid, must be jpeg or png"
+            })
+        }
+        if (!["image/png", "image/jpeg"].includes(imageType.mime)) {
+            c.status(400)
+            return c.json({
+                code: 400,
+                msg: "Image type is invalid, must be jpeg or png"
+            })
+        }
+        // DONE
+
         const MAX_IMAGE_SIZE = 10 * 1024 * 1024
         if ((image as File).size > MAX_IMAGE_SIZE) {
             c.status(400)

docs/api-doc.html

@@ -0,0 +1,65 @@
+<!-- HTML for static distribution bundle build -->
+<!DOCTYPE html>
+<html lang="zh-CN" translate="no">
+  <head>
+    <meta charset="UTF-8">
+    <title>Apifox 接口文档</title>
+    <style>
+      .swagger-ui .topbar {
+        display: none;
+      }
+    </style>
+    <style>
+      .swagger-ui{color:#3b4151;font-family:sans-serif/*! normalize.css v7.0.0 | MIT License | github.com/necolas/normalize.css */}.swagger-ui html{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;line-height:1.15}.swagger-ui body{margin:0}.swagger-ui article,.swagger-ui aside,.swagger-ui footer,.swagger-ui header,.swagger-ui nav,.swagger-ui section{display:block}.swagger-ui h1{font-size:2em;margin:.67em 0}.swagger-ui figcaption,.swagger-ui figure,.swagger-ui main{display:block}.swagger-ui figure{margin:1em 40px}.swagger-ui hr{box-sizing:content-box;height:0;overflow:visible}.swagger-ui pre{font-family:monospace,monospace;font-size:1em}.swagger-ui a{-webkit-text-decoration-skip:objects;background-color:transparent}.swagger-ui abbr[title]{border-bottom:none;text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.swagger-ui b,.swagger-ui strong{font-weight:inherit;font-weight:bolder}.swagger-ui code,.swagger-ui kbd,.swagger-ui samp{font-family:monospace,monospace;font-size:1em}.swagger-ui dfn{font-style:italic}.swagger-ui mark{background-color:#ff0;color:#000}.swagger-ui small{font-size:80%}.swagger-ui sub,.swagger-ui sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}.swagger-ui sub{bottom:-.25em}.swagger-ui sup{top:-.5em}.swagger-ui audio,.swagger-ui video{display:inline-block}.swagger-ui audio:not([controls]){display:none;height:0}.swagger-ui img{border-style:none}.swagger-ui svg:not(:root){overflow:hidden}.swagger-ui button,.swagger-ui input,.swagger-ui optgroup,.swagger-ui select,.swagger-ui textarea{font-family:sans-serif;font-size:100%;line-height:1.15;margin:0}.swagger-ui button,.swagger-ui input{overflow:visible}.swagger-ui button,.swagger-ui select{text-transform:none}.swagger-ui [type=reset],.swagger-ui [type=submit],.swagger-ui button,.swagger-ui html [type=button]{-webkit-appearance:button}.swagger-ui [type=button]::-moz-focus-inner,.swagger-ui [type=reset]::-moz-focus-inner,.swagger-ui [type=submit]::-moz-focus-inner,.swagger-ui button::-moz-focus-inner{border-style:none;padding:0}.swagger-ui [type=button]:-moz-focusring,.swagger-ui [type=reset]:-moz-focusring,.swagger-ui [type=submit]:-moz-focusring,.swagger-ui button:-moz-focusring{outline:1px dotted ButtonText}.swagger-ui fieldset{padding:.35em .75em .625em}.swagger-ui legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}.swagger-ui progress{display:inline-block;vertical-align:baseline}.swagger-ui textarea{overflow:auto}.swagger-ui [type=checkbox],.swagger-ui [type=radio]{box-sizing:border-box;padding:0}.swagger-ui [type=number]::-webkit-inner-spin-button,.swagger-ui [type=number]::-webkit-outer-spin-button{height:auto}.swagger-ui [type=search]{-webkit-appearance:textfield;outline-offset:-2px}.swagger-ui [type=search]::-webkit-search-cancel-button,.swagger-ui [type=search]::-webkit-search-decoration{-webkit-appearance:none}.swagger-ui ::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}.swagger-ui details,.swagger-ui menu{display:block}.swagger-ui summary{display:list-item}.swagger-ui canvas{display:inline-block}.swagger-ui [hidden],.swagger-ui template{display:none}.swagger-ui .debug *{outline:1px solid gold}.swagger-ui .debug-white *{outline:1px solid #fff}.swagger-ui .debug-black *{outline:1px solid #000}.swagger-ui .debug-grid{background:transparent 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+    </style>
+    <style>
+      html {
+        box-sizing: border-box;
+        overflow: -moz-scrollbars-vertical;
+        overflow-y: scroll;
+      }
+
+      *,
+      *:before,
+      *:after {
+        box-sizing: inherit;
+      }
+
+      body {
+        margin: 0;
+        background: #fafafa;
+      }
+    </style>
+  </head>
+
+  <body>
+    <div id="swagger-ui"></div>
+    <script>
+      !function webpackUniversalModuleDefinition(i,s){"object"==typeof exports&&"object"==typeof module?module.exports=s():"function"==typeof define&&define.amd?define([],s):"object"==typeof exports?exports.SwaggerUIBundle=s():i.SwaggerUIBundle=s()}(this,(()=>(()=>{var i={17967:(i,s)=>{"use strict";s.Nm=s.Rq=void 0;var u=/^([^\w]*)(javascript|data|vbscript)/im,m=/&#(\w+)(^\w|;)?/g,v=/&(newline|tab);/gi,_=/[\u0000-\u001F\u007F-\u009F\u2000-\u200D\uFEFF]/gim,j=/^.+(:|&colon;)/gim,M=[".","/"];s.Rq="about:blank",s.Nm=function sanitizeUrl(i){if(!i)return s.Rq;var $=function decodeHtmlCharacters(i){return i.replace(_,"").replace(m,(function(i,s){return String.fromCharCode(s)}))}(i).replace(v,"").replace(_,"").trim();if(!$)return s.Rq;if(function isRelativeUrlWithoutProtocol(i){return M.indexOf(i[0])>-1}($))return $;var W=$.match(j);if(!W)return $;var X=W[0];return u.test(X)?s.Rq:$}},79742:(i,s)=>{"use strict";s.byteLength=function byteLength(i){var s=getLens(i),u=s[0],m=s[1];return 3*(u+m)/4-m},s.toByteArray=function toByteArray(i){var s,u,_=getLens(i),j=_[0],M=_[1],$=new v(function _byteLength(i,s,u){return 3*(s+u)/4-u}(0,j,M)),W=0,X=M>0?j-4:j;for(u=0;u<X;u+=4)s=m[i.charCodeAt(u)]<<18|m[i.charCodeAt(u+1)]<<12|m[i.charCodeAt(u+2)]<<6|m[i.charCodeAt(u+3)],$[W++]=s>>16&255,$[W++]=s>>8&255,$[W++]=255&s;2===M&&(s=m[i.charCodeAt(u)]<<2|m[i.charCodeAt(u+1)]>>4,$[W++]=255&s);1===M&&(s=m[i.charCodeAt(u)]<<10|m[i.charCodeAt(u+1)]<<4|m[i.charCodeAt(u+2)]>>2,$[W++]=s>>8&255,$[W++]=255&s);return $},s.fromByteArray=function fromByteArray(i){for(var s,m=i.length,v=m%3,_=[],j=16383,M=0,$=m-v;M<$;M+=j)_.push(encodeChunk(i,M,M+j>$?$:M+j));1===v?(s=i[m-1],_.push(u[s>>2]+u[s<<4&63]+"==")):2===v&&(s=(i[m-2]<<8)+i[m-1],_.push(u[s>>10]+u[s>>4&63]+u[s<<2&63]+"="));return _.join("")};for(var u=[],m=[],v="undefined"!=typeof Uint8Array?Uint8Array:Array,_="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",j=0;j<64;++j)u[j]=_[j],m[_.charCodeAt(j)]=j;function getLens(i){var s=i.length;if(s%4>0)throw new Error("Invalid string. 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+    <script>
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+        const ui = SwaggerUIBundle({
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docs/openapi.json

@@ -0,0 +1,215 @@
+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "默认模块",
+    "description": "",
+    "version": "1.0.0"
+  },
+  "tags": [],
+  "paths": {
+    "/watermark/encode": {
+      "post": {
+        "summary": "encode",
+        "deprecated": false,
+        "description": "添加图片水印",
+        "tags": [],
+        "parameters": [
+          {
+            "name": "payload",
+            "in": "query",
+            "description": "",
+            "required": false,
+            "example": "hello",
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "strength",
+            "in": "query",
+            "description": "",
+            "required": false,
+            "example": "0.5",
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "requestBody": {
+          "content": {
+            "multipart/form-data": {
+              "encoding": {
+                "image": {
+                  "contentType": "form"
+                }
+              },
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "image": {
+                    "format": "binary",
+                    "type": "string",
+                    "description": "图片大小必须<=10MB，仅支持jpeg和png格式",
+                    "example": "file:///Users/cancerai/Pictures/Screenshot 2026-10-06 at 23.04.54.png"
+                  },
+                  "payload": {
+                    "description": "必须是长度<=8的字母大小写或数字组合",
+                    "example": "secret",
+                    "type": "string"
+                  },
+                  "strength": {
+                    "type": "number",
+                    "description": "取值0~100,一般取值0~1.5",
+                    "example": 1
+                  },
+                  "outputType": {
+                    "description": "只接收 \"jpeg\" 或 \"png\"",
+                    "example": "png",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "image",
+                  "payload",
+                  "strength",
+                  "outputType"
+                ]
+              },
+              "example": {
+                "image": "file:///Users/cancerai/Pictures/Screenshot 2026-10-06 at 23.04.54.png",
+                "payload": "secret",
+                "strength": 1,
+                "outputType": "png"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "",
+            "content": {
+              "image/png": {
+                "schema": {
+                  "type": "object",
+                  "properties": {}
+                }
+              }
+            },
+            "headers": {}
+          }
+        },
+        "security": []
+      }
+    },
+    "/watermark/decode": {
+      "post": {
+        "summary": "decode",
+        "deprecated": false,
+        "description": "",
+        "tags": [],
+        "parameters": [
+          {
+            "name": "payload",
+            "in": "query",
+            "description": "",
+            "required": false,
+            "example": "hello",
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "strength",
+            "in": "query",
+            "description": "",
+            "required": false,
+            "example": "0.5",
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "requestBody": {
+          "content": {
+            "multipart/form-data": {
+              "encoding": {
+                "image": {
+                  "contentType": "form"
+                }
+              },
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "image": {
+                    "format": "binary",
+                    "type": "string",
+                    "description": "需要提取水印的图片，图片大小必须<=10MB，仅支持jpeg和png格式",
+                    "example": "file:///Users/cancerai/response.jpeg"
+                  }
+                },
+                "required": [
+                  "image"
+                ]
+              },
+              "example": {
+                "image": "file:///Users/cancerai/response.jpeg"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "hasWatermark": {
+                      "type": "string",
+                      "description": "是否存在水印"
+                    },
+                    "payload": {
+                      "type": "string",
+                      "description": "水印内容"
+                    },
+                    "schema": {
+                      "type": "string",
+                      "description": "payload元信息"
+                    }
+                  },
+                  "required": [
+                    "hasWatermark",
+                    "payload",
+                    "schema"
+                  ]
+                },
+                "example": {
+                  "hasWatermark": true,
+                  "payload": "secret",
+                  "schema": 1
+                }
+              }
+            },
+            "headers": {}
+          }
+        },
+        "security": []
+      }
+    }
+  },
+  "components": {
+    "schemas": {},
+    "responses": {},
+    "securitySchemes": {}
+  },
+  "servers": [
+    {
+      "url": "http://localhost:8080",
+      "description": "encode env"
+    }
+  ],
+  "security": []
+}