├── .gitignore
├── .htaccess
├── LICENSE
├── README.md
├── api
    └── index.php
├── index.html
├── test
    ├── deno.ts
    ├── develop.mjs
    ├── mini.php
    └── node.mjs
├── url.csv
└── vercel.json


/.gitignore:
--------------------------------------------------------------------------------
1 | node_modules/
2 | 


--------------------------------------------------------------------------------
/.htaccess:
--------------------------------------------------------------------------------
1 | <IfModule mod_rewrite.c>
2 |     RewriteEngine On
3 |     RewriteBase /
4 |     RewriteCond %{REQUEST_FILENAME} !-f
5 |     RewriteCond %{REQUEST_FILENAME} !-d
6 |     RewriteRule ^(\w)*\.(?:jpg|jpeg|png|gif|bmp|webp) api/index.php?id=$1 [L]
7 | </IfModule>


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU GENERAL PUBLIC LICENSE
  2 |                        Version 3, 29 June 2007
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549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 | 
552 |   13. Use with the GNU Affero General Public License.
553 | 
554 |   Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work.  The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 | 
563 |   14. Revised Versions of this License.
564 | 
565 |   The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time.  Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 | 
570 |   Each version is given a distinguishing version number.  If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation.  If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 | 
579 |   If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 | 
584 |   Later license versions may give you additional or different
585 | permissions.  However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 | 
589 |   15. Disclaimer of Warranty.
590 | 
591 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 | 
600 |   16. Limitation of Liability.
601 | 
602 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 | 
612 |   17. Interpretation of Sections 15 and 16.
613 | 
614 |   If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 | 
621 |                      END OF TERMS AND CONDITIONS
622 | 
623 |             How to Apply These Terms to Your New Programs
624 | 
625 |   If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 | 
629 |   To do so, attach the following notices to the program.  It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 | 
634 |     <one line to give the program's name and a brief idea of what it does.>
635 |     Copyright (C) <year>  <name of author>
636 | 
637 |     This program is free software: you can redistribute it and/or modify
638 |     it under the terms of the GNU General Public License as published by
639 |     the Free Software Foundation, either version 3 of the License, or
640 |     (at your option) any later version.
641 | 
642 |     This program is distributed in the hope that it will be useful,
643 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
644 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
645 |     GNU General Public License for more details.
646 | 
647 |     You should have received a copy of the GNU General Public License
648 |     along with this program.  If not, see <https://www.gnu.org/licenses/>.
649 | 
650 | Also add information on how to contact you by electronic and paper mail.
651 | 
652 |   If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 | 
655 |     <program>  Copyright (C) <year>  <name of author>
656 |     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 |     This is free software, and you are welcome to redistribute it
658 |     under certain conditions; type `show c' for details.
659 | 
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License.  Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 | 
664 |   You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | <https://www.gnu.org/licenses/>.
668 | 
669 |   The GNU General Public License does not permit incorporating your program
670 | into proprietary programs.  If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library.  If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License.  But first, please read
674 | <https://www.gnu.org/licenses/why-not-lgpl.html>.
675 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Random-Picture
 2 | 
 3 | 通过随机发送 `url.csv` 文件中给出的图床链接来实现一个随机图片 API  
 4 | 本仓库含 php(vercel), deno(deno.dev) 版本，API 一致  
 5 | 另外给出了 node.js 实现，仅供测试  
 6 | 作为一个简易的 API， 切勿在 `url.csv` 中添加过多的图片地址
 7 | 
 8 | ## 演示
 9 | 
10 | -   <https://random-picture.vercel.app/> _(vercel, php 版本)_
11 | -   <https://random-picture.vercel.app/random.jpg>
12 | -   <https://random-picture.vercel.app/api/>
13 | -   <https://random-picture.vercel.app/api/?json>
14 | 
15 | -   <https://rand.deno.dev/> (deno 版本)
16 | -   <https://rand.deno.dev/?json>
17 | -   <https://rand.deno.dev/?raw>
18 | -   <https://rand.deno.dev/?id=3>
19 | -   <https://rand.deno.dev/3.jpg>
20 | -   <https://rand.deno.dev/random.png?raw>
21 | 
22 | > 演示图片来自<https://www.pixiv.net/users/8236670>
23 | 
24 | ## php 部署到 Vercel
25 | 
26 | fork 后，修改自己仓库的 `url.csv`，然后在 Vercel 平台上导入自己的项目  
27 | 你也可以直接修改<https://github.com/YieldRay/Random-Picture/blob/master/url.csv>来创建 fork  
28 | [![Deploy to Vercel](https://vercel.com/button)](https://vercel.com/import/git?s=https%3A%2F%2Fgithub.com%2FYieldRay%2FRandom-Picture)
29 | 
30 | ## php 部署到虚拟主机
31 | 
32 | 支持 php >= 5.3  
33 | 直接将下载项目然后上传至虚拟主机即可，此时 API 路径在 `./api` 文件夹下  
34 | 或者下载项目的 `./api/index.php` 和 `./url.csv` ，将这两个文件上传至同一目录即可
35 | 
36 | ## deno 部署到 deno.dev
37 | 
38 | Deno 版本需要你能够托管一个文本文件，文件格式同 `./url.csv`  
39 | 获取这个文本文件的链接。例如：`https://raw.githubusercontents.com/YieldRay/Random-Picture/master/url.csv`  
40 | [![Deploy to Deno](https://deno.com/deno-deploy-button.svg)](https://dash.deno.com/new?url=https://raw.githubusercontent.com/YieldRay/Random-Picture/master/test/deno.ts&env=RECORD_URL)点击此按钮  
41 | 将链接填入环境变量  
42 | ![deno.png](https://s2.loli.net/2022/04/28/ajWebXNYfw7Mtpv.png)  
43 | 也可以部署后在此修改环境变量  
44 | ![deno2.png](https://s2.loli.net/2022/04/28/VtMBlj1Uuxysboc.png)
45 | 
46 | ## php 伪静态
47 | 
48 | 伪静态是可选的。  
49 | 开启伪静态后支持以<https://example.net/:id.png>形式访问  
50 | 例如 <https://random-picture.vercel.app/1.jpg> <https://random-picture.vercel.app/2.jpg>  
51 | Apache 和 Vercel 环境无需配置，默认支持伪静态。  
52 | Nginx 参照以下配置：
53 | 
54 | ```nginx
55 | location / {
56 |         if (!-e $request_filename) {
57 |             rewrite  ^(\w)*\.(?:jpg|jpeg|png|gif|bmp|webp)$  /api/index.php?id=$1  last;
58 |         }
59 | }
60 | ```
61 | 


--------------------------------------------------------------------------------
/api/index.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | const ALLOW_RAW_OUTPUT = false;
 3 | // 是否开启 ?raw 选项，可能会消耗服务器较多流量
 4 | 
 5 | function has_query($query)
 6 | {
 7 |     return isset($_GET[$query]);
 8 | }
 9 | 
10 | if (file_exists(__DIR__ . '/url.csv')) // in the same folder
11 |     $imgs_array = file(__DIR__ . '/url.csv', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
12 | else if (file_exists('../url.csv'))    // in the parent folder
13 |     $imgs_array = file('../url.csv', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
14 | else                                   // for vercel runtime
15 |     $imgs_array = file('http://' . $_SERVER['HTTP_HOST'] . '/url.csv', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
16 | if (count($imgs_array) == 0) $imgs_array = array('https://http.cat/503');
17 | 
18 | 
19 | $id = has_query('id') ? $_GET['id'] : "";
20 | if (strlen($id) > 0 && is_numeric($id)) {
21 |     settype($id, 'int');
22 |     $len = count($imgs_array);
23 |     if ($id >= $len || $id < 0) {
24 |         $id = array_rand($imgs_array);
25 |     } else {
26 |         header('Cache-Control: public, max-age=86400');
27 |     }
28 | } else {
29 |     header('Cache-Control: no-cache');
30 |     $id = array_rand($imgs_array);
31 | }
32 | 
33 | 
34 | if (has_query('json')) {
35 |     header('Access-Control-Allow-Origin: *');
36 |     header('Content-Type: application/json');
37 |     echo json_encode(array('id' => $id, 'url' => $imgs_array[$id]));
38 | } else if (has_query('raw')) {
39 |     if (!ALLOW_RAW_OUTPUT) {
40 |         header('HTTP/1.1 403 Forbidden');
41 |         exit();
42 |     }
43 |     header('Content-Type: image/png');
44 |     echo file_get_contents($imgs_array[$id]);
45 | } else {
46 |     header('Referrer-Policy: no-referrer');
47 |     header('Location: ' . $imgs_array[$id]);
48 | }
49 | 
50 | exit();
51 | 


--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html>
  3 |     <head>
  4 |         <title>随机图片api</title>
  5 |         <meta charset="utf-8" />
  6 |         <meta name="viewport" content="width=device-width, initial-scale=1" />
  7 |         <style>
  8 |             html,
  9 |             body {
 10 |                 margin: 0;
 11 |                 color: #424242;
 12 |                 font-weight: 300;
 13 |                 font-family: "-apple-system", "BlinkMacSystemFont", "Helvetica Neue", "PingFang SC", "Microsoft YaHei",
 14 |                     "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", "sans-serif";
 15 |                 font-size: 16px;
 16 |             }
 17 | 
 18 |             * {
 19 |                 box-sizing: border-box;
 20 |             }
 21 | 
 22 |             header {
 23 |                 padding: 40vh 0 8vh 0;
 24 |                 text-align: center;
 25 |                 font-weight: 100;
 26 |                 display: flex;
 27 |                 flex-direction: column;
 28 |                 align-items: center;
 29 |                 justify-content: space-between;
 30 |                 height: 100vh;
 31 |                 overflow: hidden;
 32 |                 background: #a0e5e4;
 33 |             }
 34 | 
 35 |             h1,
 36 |             h2,
 37 |             h3 {
 38 |                 font-weight: 400 !important;
 39 |                 font-weight: bold;
 40 |                 margin: 0;
 41 |             }
 42 | 
 43 |             h1 {
 44 |                 font-size: 3.5rem;
 45 |             }
 46 | 
 47 |             h2 {
 48 |                 font-size: 2rem;
 49 |                 font-weight: 300;
 50 |             }
 51 | 
 52 |             h3 {
 53 |                 font-size: 1.5rem;
 54 |                 font-weight: 300;
 55 |             }
 56 | 
 57 |             #scroll-down {
 58 |                 background-color: transparent;
 59 |                 margin-top: 2rem;
 60 |                 width: 2rem;
 61 |                 height: 2rem;
 62 |                 border-radius: 50%;
 63 |                 border: 2px solid #424242;
 64 |                 cursor: pointer;
 65 |                 animation: bounce 2s infinite 2s;
 66 |             }
 67 | 
 68 |             #scroll-down::before {
 69 |                 display: block;
 70 |                 content: "";
 71 |                 transform: rotate(-45deg) translate(0.15rem, 0.15rem);
 72 |                 width: 0.4rem;
 73 |                 height: 0.4rem;
 74 |                 border: 2px solid #424242;
 75 |                 border-width: 0px 0 2px 2px;
 76 |             }
 77 | 
 78 |             a {
 79 |                 text-decoration: none;
 80 |                 color: #79c37c;
 81 |             }
 82 | 
 83 |             main {
 84 |                 padding: 1vw;
 85 |             }
 86 | 
 87 |             section {
 88 |                 padding: 1rem;
 89 |             }
 90 | 
 91 |             footer {
 92 |                 padding: 1vh;
 93 |                 text-align: center;
 94 |                 background-color: #aaaaaa;
 95 |             }
 96 | 
 97 |             footer a {
 98 |                 color: #ddd;
 99 |             }
100 | 
101 |             footer a:hover {
102 |                 text-decoration: underline;
103 |             }
104 | 
105 |             @keyframes bounce {
106 |                 0%,
107 |                 100%,
108 |                 20%,
109 |                 50%,
110 |                 80% {
111 |                     transform: translateY(0);
112 |                 }
113 | 
114 |                 40% {
115 |                     transform: translateY(-10px);
116 |                 }
117 | 
118 |                 60% {
119 |                     transform: translateY(-5px);
120 |                 }
121 |             }
122 | 
123 |             pre {
124 |                 background-color: #f5f5f5;
125 |                 padding: 2rem 1rem;
126 |                 border-radius: 4px;
127 |                 overflow: auto;
128 |             }
129 |         </style>
130 |     </head>
131 | 
132 |     <body>
133 |         <header>
134 |             <section>
135 |                 <h1>随机图片API</h1>
136 |                 <h3>说明文档</h3>
137 |             </section>
138 |             <button id="scroll-down"></button>
139 |         </header>
140 |         <main>
141 |             <section>
142 |                 <h2><strong>假定 API 部署到 https://example.net/</strong></h2>
143 |                 <small>php</small>
144 |                 <p>
145 |                     访问
146 |                     <a href="https://example.net/api">https://example.net/api</a>
147 |                     ，跳转至图片地址
148 |                 </p>
149 |                 <p>
150 |                     访问
151 |                     <a href="https://example.net/api/?id=数字">https://example.net/api/?id=数字</a>
152 |                     ，跳转至指定图片
153 |                 </p>
154 |                 <p>
155 |                     示例
156 |                     <a href="https://example.net/api/?type=json&id=3">https://example.net/api/?id=3</a>
157 |                 </p>
158 |                 <p>
159 |                     示例
160 |                     <a href="https://example.net/api/?type=json&id=3">https://example.net/api/?id=3&json</a>
161 |                 </p>
162 |             </section>
163 |             <section>
164 |                 <h2>
165 |                     <strong>
166 |                         访问
167 |                         <a href="https://example.net/api/?raw">https://example.net/api/?raw</a>
168 |                     </strong>
169 |                 </h2>
170 |                 <p>服务器读取后输出，默认关闭</p>
171 |             </section>
172 |             <section>
173 |                 <h2>
174 |                     <strong>
175 |                         访问
176 |                         <a href="https://example.net/api/?json">https://example.net/api/?json</a>
177 |                     </strong>
178 |                 </h2>
179 |                 <p>输出json</p>
180 |                 <pre>
181 | {"id":3,url":"https://z3.ax1x.com/2021/08/19/fqDucQ.png"}   
182 | </pre
183 |                 >
184 |             </section>
185 |         </main>
186 |         <script>
187 |             document.querySelector("main").innerHTML = document
188 |                 .querySelector("main")
189 |                 .innerHTML.replace(/https:\/\/example.net/g, location.origin);
190 | 
191 |             document.getElementById("scroll-down").addEventListener("click", function () {
192 |                 document.querySelector("main").scrollIntoView({
193 |                     behavior: "smooth",
194 |                 });
195 |             });
196 |         </script>
197 |         <footer>
198 |             <p>
199 |                 <a href="https://github.com/yieldray/Random-Picture">Source Code</a>
200 |             </p>
201 |         </footer>
202 |     </body>
203 | </html>
204 | 


--------------------------------------------------------------------------------
/test/deno.ts:
--------------------------------------------------------------------------------
 1 | // 如果修改了环境变量 RECORD_URL 则无需修改任何代码，否则，修改下面的地址，这个地址应该返回一个文本文件，每行一个图片地址
 2 | const recordURL = "https://raw.githubusercontents.com/YieldRay/Random-Picture/master/url.csv";
 3 | /**
 4 |  * 有?json则返回json，否则如有?raw直接输出图像否则302跳转
 5 |  * 优先获取123.jpg中的id，其次?id
 6 |  * example:
 7 |  * https://rand.deno.dev/?id=123
 8 |  * https://rand.deno.dev/3.jpg
 9 |  * https://rand.deno.dev/3.png?json
10 |  * https://rand.deno.dev/3.jpeg?raw
11 |  * https://rand.deno.dev/?raw
12 |  */
13 | const randomNum = (min: number, max: number) => Math.floor(Math.random() * (max - min + 1)) + min;
14 | const imagesArray = await fetch(Deno.env.get("RECORD_URL") || recordURL)
15 |     .then((res) => res.text())
16 |     .then((text) => text.split(/\r|\n|\r\n/).filter((url) => url.length > 5));
17 | 
18 | async function handler(req: Request): Promise<Response> {
19 |     const url = new URL(req.url);
20 |     if (url.pathname === "/favicon.ico") {
21 |         // return new Response(null, { status: 404 });
22 |         return await fetch("https://deno.land/favicon.ico");
23 |     }
24 |     const { searchParams } = url;
25 |     try {
26 |         let stringNumber: string; // 获取id
27 |         const matched = url.pathname.match(/^\/(\d+)\.(?:jpg|jpeg|png|gif|webp)$/);
28 |         if (matched) {
29 |             stringNumber = matched[1];
30 |         } else {
31 |             stringNumber = searchParams.get("id") ?? "";
32 |         }
33 |         let id = Number(stringNumber);
34 |         if (stringNumber.length === 0 || Number.isNaN(id)) {
35 |             id = randomNum(0, imagesArray.length - 1);
36 |         } else {
37 |             if (id < 0 || id >= imagesArray.length) {
38 |                 id = randomNum(0, imagesArray.length - 1);
39 |             }
40 |         }
41 |         const remoteURL = imagesArray[id];
42 |         console.log(`send ${id} of ${imagesArray.length} with ${req.url}`);
43 |         // 调整发送格式json/raw/302
44 |         if (searchParams.has("json")) {
45 |             return new Response(JSON.stringify({ id, url: remoteURL }), {
46 |                 headers: {
47 |                     "access-control-allow-origin": "*",
48 |                     "content-type": "application/json; charset=utf-8",
49 |                     "cache-control": "no-cache",
50 |                 },
51 |             });
52 |         } else if (searchParams.has("raw")) {
53 |             return await fetch(remoteURL, {
54 |                 headers: {
55 |                     Referer: "https://www.pixiv.net/",
56 |                     "User-Agent": "PixivIOSApp/6.7.1 (iOS 10.3.1; iPhone8,1)",
57 |                 }, // 这个Header允许调用pixiv上面的图片
58 |             });
59 |         } else {
60 |             return new Response(null, {
61 |                 status: 302,
62 |                 headers: {
63 |                     location: remoteURL,
64 |                     "cache-control": "no-cache",
65 |                 },
66 |             });
67 |         }
68 |     } catch (e) {
69 |         return new Response(e.message, { status: 500 });
70 |     }
71 | }
72 | 
73 | Deno.serve(handler);
74 | 


--------------------------------------------------------------------------------
/test/develop.mjs:
--------------------------------------------------------------------------------
1 | // 本地测试
2 | import http from "http";
3 | import handler from "./node.mjs";
4 | const port = process.env.PORT || 8000;
5 | console.log(`Server is running at http://localhost:${port}`);
6 | http.createServer(handler).listen(port);
7 | 


--------------------------------------------------------------------------------
/test/mini.php:
--------------------------------------------------------------------------------
1 | <?php $a=file('url.csv');$b=$a[array_rand($a)];header("Location:$b");
2 | 


--------------------------------------------------------------------------------
/test/node.mjs:
--------------------------------------------------------------------------------
 1 | import axios from "axios";
 2 | // 需要先安装 axios
 3 | // 填入环境变量，或者修改下面的地址，这个地址应该返回一个文本文件，每行一个图片地址
 4 | const recordURL = process.env.RECORD_URL || "https://raw.githubusercontents.com/YieldRay/Random-Picture/master/url.csv";
 5 | 
 6 | /*
 7 |  * Program Start
 8 |  */
 9 | const randomNum = (min, max) => Math.floor(Math.random() * (max - min + 1)) + min;
10 | const imagesArray = ["https://http.cat/503"];
11 | (async () => {
12 |     const text = await axios.get(recordURL).then((res) => res.data);
13 |     const imgs = text.split(/\r|\n|\r\n/).filter((item) => item.length > 5);
14 |     imagesArray.splice(0, 1, ...imgs);
15 | })();
16 | 
17 | export default async function (req /*: http.IncomingMessage*/, res /*: http.ServerResponse*/) {
18 |     const url = new URL("http://localhost" + req.url);
19 |     if (req.url === "/favicon.ico") {
20 |         res.writeHead(404);
21 |         res.end();
22 |         return;
23 |     }
24 |     const { searchParams } = url;
25 |     let stringNumber; // 获取id
26 |     const matched = url.pathname.match(/^\/(\d+)\.(?:jpg|jpeg|png|gif|webp)$/);
27 |     if (matched) {
28 |         stringNumber = matched[1];
29 |     } else {
30 |         stringNumber = searchParams.get("id") ?? "";
31 |     }
32 |     let id = Number(stringNumber);
33 |     if (stringNumber.length === 0 || Number.isNaN(id)) {
34 |         id = randomNum(0, imagesArray.length - 1);
35 |     } else {
36 |         if (id < 0 || id >= imagesArray.length) id = randomNum(0, imagesArray.length - 1);
37 |     }
38 |     const remoteURL = imagesArray[id];
39 |     console.log(`send ${id} of ${imagesArray.length} with ${req.url}`);
40 |     // 调整发送格式json/raw/302
41 |     if (searchParams.has("json")) {
42 |         res.writeHead(200, {
43 |             "Content-Type": "application/json",
44 |             "Access-Control-Allow-Origin": "*",
45 |             "Cache-Control": "no-cache",
46 |         });
47 |         res.write(JSON.stringify({ id, url: remoteURL }));
48 |         res.end();
49 |     } else if (searchParams.has("raw")) {
50 |         console.log(`send raw ${remoteURL}`);
51 |         const response = await axios({
52 |             method: "get",
53 |             url: remoteURL,
54 |             responseType: "stream",
55 |             headers: {
56 |                 Referer: "https://www.pixiv.net/",
57 |                 "User-Agent": "PixivIOSApp/6.7.1 (iOS 10.3.1; iPhone8,1)",
58 |             }, // 这个Header允许调用pixiv上面的图片
59 |         });
60 |         res.writeHead(200, {
61 |             "Content-Type": response.headers["content-type"],
62 |             "Access-Control-Allow-Origin": "*",
63 |             "Cache-Control": "no-cache",
64 |         });
65 |         response.data.pipe(res);
66 |     } else {
67 |         res.writeHead(302, {
68 |             Location: remoteURL,
69 |             "Cache-Control": "no-cache",
70 |         });
71 |         res.end();
72 |     }
73 | }
74 | 


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/url.csv:
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1 | https://z3.ax1x.com/2021/08/19/fqDBH1.png
2 | https://z3.ax1x.com/2021/08/19/fqD0BR.png
3 | https://z3.ax1x.com/2021/08/19/fqDQns.png
4 | https://z3.ax1x.com/2021/08/19/fqDucQ.png
5 | https://z3.ax1x.com/2021/08/19/fqDsN6.png
6 | https://z3.ax1x.com/2021/08/19/fqDlBn.png
7 | https://z3.ax1x.com/2021/08/19/fqD8A0.png


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/vercel.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "functions": {
 3 |     "api/index.php": {
 4 |       "runtime": "vercel-php@0.7.2",
 5 |       "excludeFiles": "{test/**}",
 6 |       "memory": 1024,
 7 |       "maxDuration": 10
 8 |     }
 9 |   },
10 |   "routes": [
11 |     {
12 |       "src": "/(\\w*)\\.(?:jpg|jpeg|png|gif|bmp|webp)",
13 |       "dest": "/api/index.php?id=$1"
14 |     }
15 |   ]
16 | }
17 | 


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