视频源增加代理开关

2025-12-28 21:01:49 +08:00
parent dd6d2e802c
commit d821c0bd7e
11 changed files with 518 additions and 4 deletions
@@ -0,0 +1,58 @@
+/* eslint-disable no-console,@typescript-eslint/no-explicit-any */
+
+import { NextResponse } from "next/server";
+
+import { getConfig } from "@/lib/config";
+
+export const runtime = 'nodejs';
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const url = searchParams.get('url');
+  const source = searchParams.get('source');
+
+  if (!url) {
+    return NextResponse.json({ error: 'Missing url' }, { status: 400 });
+  }
+
+  if (!source) {
+    return NextResponse.json({ error: 'Missing source' }, { status: 400 });
+  }
+
+  // 检查该视频源是否启用了代理模式
+  const config = await getConfig();
+  const videoSource = config.SourceConfig?.find((s: any) => s.key === source);
+
+  if (!videoSource) {
+    return NextResponse.json({ error: 'Source not found' }, { status: 404 });
+  }
+
+  if (!videoSource.proxyMode) {
+    return NextResponse.json({ error: 'Proxy mode not enabled for this source' }, { status: 403 });
+  }
+
+  try {
+    const decodedUrl = decodeURIComponent(url);
+    const response = await fetch(decodedUrl, {
+      headers: {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
+        'Referer': decodedUrl,
+      },
+    });
+
+    if (!response.ok) {
+      return NextResponse.json({ error: 'Failed to fetch key' }, { status: 500 });
+    }
+
+    const headers = new Headers();
+    headers.set('Content-Type', response.headers.get('Content-Type') || 'application/octet-stream');
+    headers.set('Access-Control-Allow-Origin', '*');
+    headers.set('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
+    headers.set('Access-Control-Allow-Headers', 'Content-Type, Range, Origin, Accept');
+    headers.set('Access-Control-Expose-Headers', 'Content-Length, Content-Range');
+
+    return new Response(response.body, { headers });
+  } catch (error) {
+    return NextResponse.json({ error: 'Failed to fetch key' }, { status: 500 });
+  }
+}
@@ -0,0 +1,191 @@
+/* eslint-disable no-console,@typescript-eslint/no-explicit-any */
+
+import { NextResponse } from "next/server";
+
+import { getConfig } from "@/lib/config";
+import { getBaseUrl, resolveUrl } from "@/lib/live";
+
+export const runtime = 'nodejs';
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const url = searchParams.get('url');
+  const source = searchParams.get('source'); // 视频源key
+
+  if (!url) {
+    return NextResponse.json({ error: 'Missing url' }, { status: 400 });
+  }
+
+  if (!source) {
+    return NextResponse.json({ error: 'Missing source' }, { status: 400 });
+  }
+
+  // 检查该视频源是否启用了代理模式
+  const config = await getConfig();
+  const videoSource = config.SourceConfig?.find((s: any) => s.key === source);
+
+  if (!videoSource) {
+    return NextResponse.json({ error: 'Source not found' }, { status: 404 });
+  }
+
+  if (!videoSource.proxyMode) {
+    return NextResponse.json({ error: 'Proxy mode not enabled for this source' }, { status: 403 });
+  }
+
+  let response: Response | null = null;
+  let responseUsed = false;
+
+  try {
+    const decodedUrl = decodeURIComponent(url);
+
+    response = await fetch(decodedUrl, {
+      cache: 'no-cache',
+      redirect: 'follow',
+      credentials: 'same-origin',
+      headers: {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
+        'Referer': decodedUrl,
+      },
+    });
+
+    if (!response.ok) {
+      return NextResponse.json({ error: 'Failed to fetch m3u8' }, { status: 500 });
+    }
+
+    const contentType = response.headers.get('Content-Type') || '';
+    // rewrite m3u8
+    if (contentType.toLowerCase().includes('mpegurl') || contentType.toLowerCase().includes('octet-stream') || decodedUrl.includes('.m3u8')) {
+      // 获取最终的响应URL（处理重定向后的URL）
+      const finalUrl = response.url;
+      const m3u8Content = await response.text();
+      responseUsed = true; // 标记 response 已被使用
+
+      // 使用最终的响应URL作为baseUrl，而不是原始的请求URL
+      const baseUrl = getBaseUrl(finalUrl);
+
+      // 重写 M3U8 内容
+      const modifiedContent = rewriteM3U8Content(m3u8Content, baseUrl, request, source);
+
+      const headers = new Headers();
+      headers.set('Content-Type', contentType || 'application/vnd.apple.mpegurl');
+      headers.set('Access-Control-Allow-Origin', '*');
+      headers.set('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
+      headers.set('Access-Control-Allow-Headers', 'Content-Type, Range, Origin, Accept');
+      headers.set('Cache-Control', 'no-cache');
+      headers.set('Access-Control-Expose-Headers', 'Content-Length, Content-Range');
+      return new Response(modifiedContent, { headers });
+    }
+    // just proxy
+    const headers = new Headers();
+    headers.set('Content-Type', response.headers.get('Content-Type') || 'application/vnd.apple.mpegurl');
+    headers.set('Access-Control-Allow-Origin', '*');
+    headers.set('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
+    headers.set('Access-Control-Allow-Headers', 'Content-Type, Range, Origin, Accept');
+    headers.set('Cache-Control', 'no-cache');
+    headers.set('Access-Control-Expose-Headers', 'Content-Length, Content-Range');
+
+    // 直接返回视频流
+    return new Response(response.body, {
+      status: 200,
+      headers,
+    });
+  } catch (error) {
+    return NextResponse.json({ error: 'Failed to fetch m3u8' }, { status: 500 });
+  } finally {
+    // 确保 response 被正确关闭以释放资源
+    if (response && !responseUsed) {
+      try {
+        response.body?.cancel();
+      } catch (error) {
+        // 忽略关闭时的错误
+        console.warn('Failed to close response body:', error);
+      }
+    }
+  }
+}
+
+function rewriteM3U8Content(content: string, baseUrl: string, req: Request, source: string) {
+  // 从 referer 头提取协议信息
+  const referer = req.headers.get('referer');
+  let protocol = 'http';
+  if (referer) {
+    try {
+      const refererUrl = new URL(referer);
+      protocol = refererUrl.protocol.replace(':', '');
+    } catch (error) {
+      // ignore
+    }
+  }
+
+  const host = req.headers.get('host');
+  const proxyBase = `${protocol}://${host}/api/proxy/vod`;
+
+  const lines = content.split('\n');
+  const rewrittenLines: string[] = [];
+
+  for (let i = 0; i < lines.length; i++) {
+    let line = lines[i].trim();
+
+    // 处理 TS 片段 URL 和其他媒体文件
+    if (line && !line.startsWith('#')) {
+      const resolvedUrl = resolveUrl(baseUrl, line);
+      const proxyUrl = `${proxyBase}/segment?url=${encodeURIComponent(resolvedUrl)}&source=${source}`;
+      rewrittenLines.push(proxyUrl);
+      continue;
+    }
+
+    // 处理 EXT-X-MAP 标签中的 URI
+    if (line.startsWith('#EXT-X-MAP:')) {
+      line = rewriteMapUri(line, baseUrl, proxyBase, source);
+    }
+
+    // 处理 EXT-X-KEY 标签中的 URI
+    if (line.startsWith('#EXT-X-KEY:')) {
+      line = rewriteKeyUri(line, baseUrl, proxyBase, source);
+    }
+
+    // 处理嵌套的 M3U8 文件 (EXT-X-STREAM-INF)
+    if (line.startsWith('#EXT-X-STREAM-INF:')) {
+      rewrittenLines.push(line);
+      // 下一行通常是 M3U8 URL
+      if (i + 1 < lines.length) {
+        i++;
+        const nextLine = lines[i].trim();
+        if (nextLine && !nextLine.startsWith('#')) {
+          const resolvedUrl = resolveUrl(baseUrl, nextLine);
+          const proxyUrl = `${proxyBase}/m3u8?url=${encodeURIComponent(resolvedUrl)}&source=${source}`;
+          rewrittenLines.push(proxyUrl);
+        } else {
+          rewrittenLines.push(nextLine);
+        }
+      }
+      continue;
+    }
+
+    rewrittenLines.push(line);
+  }
+
+  return rewrittenLines.join('\n');
+}
+
+function rewriteMapUri(line: string, baseUrl: string, proxyBase: string, source: string) {
+  const uriMatch = line.match(/URI="([^"]+)"/);
+  if (uriMatch) {
+    const originalUri = uriMatch[1];
+    const resolvedUrl = resolveUrl(baseUrl, originalUri);
+    const proxyUrl = `${proxyBase}/segment?url=${encodeURIComponent(resolvedUrl)}&source=${source}`;
+    return line.replace(uriMatch[0], `URI="${proxyUrl}"`);
+  }
+  return line;
+}
+
+function rewriteKeyUri(line: string, baseUrl: string, proxyBase: string, source: string) {
+  const uriMatch = line.match(/URI="([^"]+)"/);
+  if (uriMatch) {
+    const originalUri = uriMatch[1];
+    const resolvedUrl = resolveUrl(baseUrl, originalUri);
+    const proxyUrl = `${proxyBase}/key?url=${encodeURIComponent(resolvedUrl)}&source=${source}`;
+    return line.replace(uriMatch[0], `URI="${proxyUrl}"`);
+  }
+  return line;
+}
@@ -0,0 +1,153 @@
+/* eslint-disable no-console,@typescript-eslint/no-explicit-any */
+
+import { NextResponse } from "next/server";
+
+import { getConfig } from "@/lib/config";
+
+export const runtime = 'nodejs';
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const url = searchParams.get('url');
+  const source = searchParams.get('source');
+
+  if (!url) {
+    return NextResponse.json({ error: 'Missing url' }, { status: 400 });
+  }
+
+  if (!source) {
+    return NextResponse.json({ error: 'Missing source' }, { status: 400 });
+  }
+
+  // 检查该视频源是否启用了代理模式
+  const config = await getConfig();
+  const videoSource = config.SourceConfig?.find((s: any) => s.key === source);
+
+  if (!videoSource) {
+    return NextResponse.json({ error: 'Source not found' }, { status: 404 });
+  }
+
+  if (!videoSource.proxyMode) {
+    return NextResponse.json({ error: 'Proxy mode not enabled for this source' }, { status: 403 });
+  }
+
+  let response: Response | null = null;
+  let reader: ReadableStreamDefaultReader<Uint8Array> | null = null;
+
+  try {
+    const decodedUrl = decodeURIComponent(url);
+    response = await fetch(decodedUrl, {
+      headers: {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
+        'Referer': decodedUrl,
+      },
+    });
+    if (!response.ok) {
+      return NextResponse.json({ error: 'Failed to fetch segment' }, { status: 500 });
+    }
+
+    const headers = new Headers();
+    headers.set('Content-Type', response.headers.get('Content-Type') || 'video/mp2t');
+    headers.set('Access-Control-Allow-Origin', '*');
+    headers.set('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
+    headers.set('Access-Control-Allow-Headers', 'Content-Type, Range, Origin, Accept');
+    headers.set('Accept-Ranges', 'bytes');
+    headers.set('Access-Control-Expose-Headers', 'Content-Length, Content-Range');
+    const contentLength = response.headers.get('content-length');
+    if (contentLength) {
+      headers.set('Content-Length', contentLength);
+    }
+
+    // 使用流式传输，避免占用内存
+    const stream = new ReadableStream({
+      start(controller) {
+        if (!response?.body) {
+          controller.close();
+          return;
+        }
+
+        reader = response.body.getReader();
+        const isCancelled = false;
+
+        function pump() {
+          if (isCancelled || !reader) {
+            return;
+          }
+
+          reader.read().then(({ done, value }) => {
+            if (isCancelled) {
+              return;
+            }
+
+            if (done) {
+              controller.close();
+              cleanup();
+              return;
+            }
+
+            controller.enqueue(value);
+            pump();
+          }).catch((error) => {
+            if (!isCancelled) {
+              controller.error(error);
+              cleanup();
+            }
+          });
+        }
+
+        function cleanup() {
+          if (reader) {
+            try {
+              reader.releaseLock();
+            } catch (e) {
+              // reader 可能已经被释放，忽略错误
+            }
+            reader = null;
+          }
+        }
+
+        pump();
+      },
+      cancel() {
+        // 当流被取消时，确保释放所有资源
+        if (reader) {
+          try {
+            reader.releaseLock();
+          } catch (e) {
+            // reader 可能已经被释放，忽略错误
+          }
+          reader = null;
+        }
+
+        if (response?.body) {
+          try {
+            response.body.cancel();
+          } catch (e) {
+            // 忽略取消时的错误
+          }
+        }
+      }
+    });
+
+    return new Response(stream, { headers });
+  } catch (error) {
+    // 确保在错误情况下也释放资源
+    if (reader) {
+      try {
+        (reader as ReadableStreamDefaultReader<Uint8Array>).releaseLock();
+      } catch (e) {
+        // 忽略错误
+      }
+    }
+
+    if (response?.body) {
+      try {
+        response.body.cancel();
+      } catch (e) {
+        // 忽略错误
+      }
+    }
+
+    return NextResponse.json({ error: 'Failed to fetch segment' }, { status: 500 });
+  }
+}