feat: add dailymotion support

closes #343

src/modules/processing/services/dailymotion.js

@@ -0,0 +1,107 @@
+import HLSParser from 'hls-parser';
+import { maxVideoDuration } from '../../config.js';
+
+let _token;
+
+function getExp(token) {
+    return JSON.parse(
+        Buffer.from(token.split('.')[1], 'base64')
+    ).exp * 1000;
+}
+
+const getToken = async () => {
+    if (_token && getExp(_token) > new Date().getTime()) {
+        return _token;
+    }
+
+    const req = await fetch('https://graphql.api.dailymotion.com/oauth/token', {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
+            'User-Agent': 'dailymotion/240213162706 CFNetwork/1492.0.1 Darwin/23.3.0',
+            'Authorization': 'Basic MGQyZDgyNjQwOWFmOWU3MmRiNWQ6ODcxNmJmYTVjYmEwMmUwMGJkYTVmYTg1NTliNDIwMzQ3NzIyYWMzYQ=='
+        },
+        body: 'traffic_segment=&grant_type=client_credentials'
+    }).then(r => r.json()).catch(() => {});
+
+    if (req.access_token) {
+        return _token = req.access_token;
+    }
+}
+
+export default async function({ id }) {
+    const token = await getToken();
+    if (!token) return { error: 'ErrorSomethingWentWrong' };
+
+    const req = await fetch('https://graphql.api.dailymotion.com/',
+        {
+            method: 'POST',
+            headers: {
+                'User-Agent': 'dailymotion/240213162706 CFNetwork/1492.0.1 Darwin/23.3.0',
+                Authorization: `Bearer ${token}`,
+                'Content-Type': 'application/json',
+                'X-DM-AppInfo-Version': '7.16.0_240213162706',
+                'X-DM-AppInfo-Type': 'iosapp',
+                'X-DM-AppInfo-Id': 'com.dailymotion.dailymotion'
+            },
+            body: JSON.stringify({
+                operationName: "Media",
+                query: `
+                    query Media($xid: String!, $password: String) {
+                        media(xid: $xid, password: $password) {
+                        __typename
+                            ... on Video {
+                                xid
+                                hlsURL
+                                duration
+                                title
+                                channel {
+                                    displayName
+                                }
+                            }
+                        }
+                    }
+                `,
+                variables: { xid: id }
+            })
+        }
+    ).then(r => r.status === 200 && r.json()).catch(() => {});
+
+    const media = req?.data?.media;
+
+    if (media?.__typename !== 'Video' || !media.hlsURL) {
+        return { error: 'ErrorEmptyDownload' }
+    }
+
+    if (media.duration * 1000 > maxVideoDuration) {
+        return { error: ['ErrorLengthLimit', maxVideoDuration / 60000] };
+    }
+
+    const manifest = await fetch(media.hlsURL).then(r => r.text()).catch(() => {});
+    if (!manifest) return { error: 'ErrorSomethingWentWrong' };
+
+    const bestQuality = HLSParser.parse(manifest).variants
+                        .filter(v => v.codecs.includes('avc1'))
+                        .reduce((a, b) => a.bandwidth > b.bandwidth ? a : b);
+    if (!bestQuality) return { error: 'ErrorEmptyDownload' }
+
+    const fileMetadata = {
+        title: media.title,
+        artist: media.channel.displayName
+    }
+
+    return {
+        urls: bestQuality.uri,
+        isM3U8: true,
+        filenameAttributes: {
+            service: 'dailymotion',
+            id: media.xid,
+            title: fileMetadata.title,
+            author: fileMetadata.artist,
+            resolution: `${bestQuality.resolution.width}x${bestQuality.resolution.height}`,
+            qualityLabel: `${bestQuality.resolution.height}p`,
+            extension: 'mp4'
+        },
+        fileMetadata
+    }
+}