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https://github.com/rikkaneko/paste.git
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Add support to create paste from HTTP form
Add paste.html Add support to direct download paste Change the default UUID length to 4 Add copyright notice
This commit is contained in:
Joe Ma
parent
44036f4092
commit
80e8aec857
3 changed files with 190 additions and 78 deletions
69
paste.html
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69
paste.html
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@ -0,0 +1,69 @@
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<!--
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~ This file is part of paste.
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~ Copyright (c) 2022 Joe Ma <rikkaneko23@gmail.com>
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~
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~ This program is free software: you can redistribute it and/or modify
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~ it under the terms of the GNU Lesser General Public License as published by
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~ the Free Software Foundation, either version 3 of the License, or
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~ (at your option) any later version.
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~
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~ This program is distributed in the hope that it will be useful,
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~ but WITHOUT ANY WARRANTY; without even the implied warranty of
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~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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~ GNU General Public License for more details.
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~
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~ You should have received a copy of the GNU Lesser General Public License
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~ along with this program. If not, see <https://www.gnu.org/licenses/>.
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-->
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Paste</title>
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</head>
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<body>
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<h3>Paste service - <a href="https://paste.nekoul.com">paste.nekoul.com</a></h3>
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<a href="https://nekoul.com">[Homepage]</a><a href="https://paste.nekoul.com/api">[API]</a>
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<h4>Upload file</h4>
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<form action="https://paste.nekoul.com" method="POST" enctype=multipart/form-data>
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<div>
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<input id="upload_file" type="file" name="upload-content">
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<div><input type="submit" value="Send"> (<span id="file_size">0 byte</span>)</div>
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</div>
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</form>
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<script>
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function update_file_size() {
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let bytes = this.files[0]?.size ?? 0;
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let size = bytes + " bytes";
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const units = ["KiB", "MiB", "GiB", "TiB"];
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for (let i = 0, approx = bytes / 1024; approx > 1; approx /= 1024, i++) {
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size = approx.toFixed(3) + " " + units[i];
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}
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document.getElementById("file_size").innerHTML = size;
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document.getElementById("file_title").innerText = `"${this.files[0]?.name ?? ""}"`
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}
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document.getElementById("upload_file").addEventListener("change", update_file_size, false);
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</script>
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<h4>Upload text</h4>
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<form action="https://paste.nekoul.com" method="POST" enctype=multipart/form-data>
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<div>
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<textarea id="text_input" style="width: 30%; max-width: 100%; " rows ="5" cols="50"
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name="upload-content" placeholder="Paste your text here..."></textarea>
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<div><input type="submit" value="Send"></div>
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</div>
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</form>
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<script>
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function update_textarea() {
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this.style.height = "auto"
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this.style.height = this.scrollHeight + "px";
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}
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document.getElementById("text_input").addEventListener("input", update_textarea, false);
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</script>
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<br><p>© 2022 rikkaneko</p>
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</body>
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</html>
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8
paste.iml
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8
paste.iml
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@ -0,0 +1,8 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="WEB_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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191
src/index.ts
191
src/index.ts
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@ -1,8 +1,28 @@
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/*
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* This file is part of paste.
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* Copyright (c) 2022 Joe Ma <rikkaneko23@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {AwsClient} from "aws4fetch";
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import { customAlphabet } from 'nanoid'
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// Constants
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const SERVICE_URL = "https://paste.nekoul.com"
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const SERVICE_URL = "paste.nekoul.com"
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const PASTE_INDEX_HTML_URL = "https://raw.githubusercontent.com/rikkaneko/paste/main/paste.html"
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const UUID_LENGTH = 4
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export interface Env {
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PASTE_INDEX: KVNamespace;
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@ -11,30 +31,37 @@ export interface Env {
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ENDPOINT: string
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}
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const API_DOCS =
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`Paste service https://paste.nekoul.com
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const API_SPEC_TEXT =
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`Paste service https://${SERVICE_URL}
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[API Draft]
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GET / Fetch the HTML for uploading text/file [ ]
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GET /<uuid> Fetch the paste by uuid [x]
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GET /<uuid>/<lang> Fetch the paste (code) in rendered HTML with syntax highlighting [ ]
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GET /<uuid>/settings Fetch the paste information [x]
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GET /status Fetch service information [x]
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PUT / Create new paste [x]
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POST /<uuid> Update the paste by uuid [x]
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DELETE /<uuid> Delete paste by uuid [x]
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POST /<uuid>/settings Update paste setting, i.e., passcode and valid time [ ]
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[API Specification]
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GET / Fetch the Web frontpage for uploading text/file [x]
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GET /api Fetch API specification
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GET /<uuid> Fetch the paste by uuid [x]
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GET /<uuid>/<lang> Fetch the paste (code) in rendered HTML with syntax highlighting [ ]
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GET /<uuid>/settings Fetch the paste information [x]
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GET /<uuid>/download Download the paste [x]
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POST / Create new paste [x] # Only support multipart/form-data and raw data
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DELETE /<uuid> Delete paste by uuid [x]
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POST /<uuid>/settings Update paste setting, i.e., passcode and valid time [ ]
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* uuid: [A-z0-9]{${UUID_LENGTH}}
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* option: Render language
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Features
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* Password protection [ ]
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* Expiring paste [ ]
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[ ] indicated not implemented
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Limitation
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* Max. 10MB file size upload (Max. 100MB body size for free Cloudflare plan)
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Last update on 30 May.
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Last update on 2 June.
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`;
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const gen_id = customAlphabet(
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"1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", 8);
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"1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", UUID_LENGTH);
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export default {
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async fetch(
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@ -50,24 +77,60 @@ export default {
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secretAccessKey: env.AWS_SECRET_ACCESS_KEY
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});
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// if (hostname !== SERVICE_URL) {
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// // Invalid case
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// return new Response(null, { status: 403 })
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// }
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// Special path
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if (path === "/api" && method == "GET") {
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return new Response(API_SPEC_TEXT);
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}
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if (path === "/") {
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switch (method) {
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// Fetch the HTML for uploading text/file
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case "GET":
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return new Response(API_DOCS);
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return await fetch(PASTE_INDEX_HTML_URL);
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// Create new paste
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case "PUT":
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case "POST":
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let uuid = gen_id();
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let buffer = await request.arrayBuffer();
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let buffer: ArrayBuffer;
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let title: string | undefined;
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// Handle content-type
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const content_type = headers.get("content-type") || "";
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// Content-Type: multipart/form-data
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if (content_type.includes("form")) {
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let formdata = await request.formData();
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let data = formdata.get("upload-content");
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if (data === null) {
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return new Response("Invalid request.\n", {
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status: 422
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})
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}
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// File
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if (data instanceof File) {
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title = data.name ?? undefined;
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buffer = await data.arrayBuffer();
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// Text
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} else {
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buffer = new TextEncoder().encode(data)
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}
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// Raw body
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} else {
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title = headers.get("title") ?? undefined;
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buffer = await request.arrayBuffer();
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}
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// Check request.body size <= 10MB
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if (buffer.byteLength > 10485760) {
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return new Response("File size must be under 10MB.\n");
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return new Response("Paste size must be under 10MB.\n", {
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status: 422
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});
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}
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// Check request.body size not empty
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if (buffer.byteLength == 0) {
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return new Response("Paste cannot be empty.\n", {
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status: 422
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});
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}
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let res = await s3.fetch(`${env.ENDPOINT}/${uuid}`, {
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@ -78,10 +141,8 @@ export default {
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if (res.ok) {
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// Upload success
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let descriptor: PasteIndexEntry = {
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title: headers.get("title") || undefined,
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last_modified: Date.now(),
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password: undefined,
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editable: undefined // Default: true
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title: title ?? undefined,
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last_modified: Date.now()
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};
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let counter = await env.PASTE_INDEX.get("__count__") || "0";
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@ -96,7 +157,7 @@ export default {
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}
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} else if (path.length >= 9) {
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} else if (path.length >= UUID_LENGTH + 1) {
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// RegExpr to match /<uuid>/<option>
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const found = path.match("/(?<uuid>[A-z0-9]+)(?:/(?<option>[A-z]+))?$");
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if (found === null) {
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@ -106,8 +167,8 @@ export default {
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}
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// @ts-ignore
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const {uuid, option} = found.groups;
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// UUID format: [A-z0-9]{8}
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if (uuid.length !== 8) {
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// UUID format: [A-z0-9]{UUID_LENGTH}
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if (uuid.length !== UUID_LENGTH) {
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return new Response("Invalid UUID.\n", {
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status: 422
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})
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@ -121,24 +182,20 @@ export default {
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let descriptor: PasteIndexEntry = JSON.parse(val);
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// Handling /<uuid>/settings
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if (option !== undefined) {
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if (option === "settings") {
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switch(method) {
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case "GET":
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return new Response(get_paste_info(uuid, descriptor))
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if (option === "settings") {
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switch(method) {
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case "GET":
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return new Response(get_paste_info(uuid, descriptor));
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case "POST": {
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}
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case "POST": {
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// TODO Implement paste setting update
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return new Response("Service is under maintainance.\n", {
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status: 422
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});
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}
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} else if (option.length !== 0) {
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return new Response("Unsupported language.\n", {
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status: 405
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})
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}
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}
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}
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switch (method) {
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// Fetch the paste by uuid
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@ -156,46 +213,24 @@ export default {
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}
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// Streaming request
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res.body.pipeTo(writable);
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return new Response(readable, {
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// headers: {
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// "Content-Disposition": `attachment; filename="${encodeURIComponent(descriptor.title ?? uuid)}"`
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// }
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});
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}
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// Update the paste by uuid
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case "POST": {
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if (!descriptor.editable) {
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return new Response("This paste does not allow editing.\n", {
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status: 405
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// Handle response format
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// Direct download
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if (option === "download") {
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return new Response(readable, {
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headers: {
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"Content-Disposition": `attachment; filename="${encodeURIComponent(descriptor.title ?? uuid)}"`
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}
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});
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}
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let buffer = await request.arrayBuffer();
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// Check request.body size <= 10MB
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if (buffer.byteLength > 10485760) {
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return new Response("File size must be under 10MB.\n");
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}
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let res = await s3.fetch(`${env.ENDPOINT}/${uuid}`, {
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method: "PUT",
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body: buffer
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});
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if (res.ok) {
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// Update last modified time
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descriptor.last_modified = Date.now();
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await env.PASTE_INDEX.put(uuid, JSON.stringify(descriptor));
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return new Response("OK\n");
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} else {
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return new Response("Unable to update the paste.\n", {
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status: 500
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});
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}
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// Default format
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return new Response(readable);
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}
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// Delete paste by uuid
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case "DELETE": {
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if (descriptor.editable !== undefined && descriptor.editable) {
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if (descriptor.editable !== undefined && !descriptor.editable) {
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return new Response("This paste is immutable.\n", {
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status: 405
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});
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@ -228,7 +263,7 @@ export default {
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function get_paste_info(uuid: string, descriptor: PasteIndexEntry): string {
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let date = new Date(descriptor.last_modified)
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return `${SERVICE_URL}/${uuid}
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return `https://${SERVICE_URL}/${uuid}
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ID: ${uuid}
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Title: ${descriptor.title || "<empty>"}
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Password: ${(!!descriptor.password)}
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@ -241,5 +276,5 @@ interface PasteIndexEntry {
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title?: string
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last_modified: number,
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password?: string
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editable?: boolean
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editable?: boolean // Default: True
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}
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