生产过程中管道破裂

Question

我有一个Django项目，我在那里工作，我想流一些mp3文件。

我有同样的问题:使用django流式传输mp3文件，从带有

的页面读取

让我解释一下:我想让在Django中流式传输一个ogg，并在我的html页面

中添加一个<audio>标签。

我有一个类似domain.tld/song/show/X/的url，其中X是我的歌曲的id。我可以用VLC进行流(直接使用文件路径)，我可以在测试期间进行流(我用VLC编写我收到的内容并读取它)。

但是当我打开浏览器并加载我的主页domain.tld时，我有和<audio> balise与url domain.tld/song/show/1/，我得到一个大的破裂管道，好像我的客户端关闭了连接。

我在别人的帖子上读到，当他们把服务器投入生产时，一些问题得到了解决。所以我推我的应用程序在服务器上，使用apache，与django.wgsi在djangoproject.com。

我在Debian 7上运行python 2.7.3, Django版本1.5。这里是我的代码:

的歌/views.py

def playAudioFile(request, pk):
    f = get_stream_song(pk)# return a pipe from pipes.Template
    l = f.read() # the file is an ogg get by pydub.com
    f.close()
    size_read = 550000
    sr = size_read
    while sr == size_read:
        print "rep"
        r = l[:size_read]
        l=l[size_read:]
        sr = len(r)
        yield r
    time.sleep(0.1) 
#url : ~/song/show/X/
#@login_required
def show_song(request, pk):
        return StreamingHttpResponse(playAudioFile(request, pk), mimetype='audio/ogg',)

在我的HTML中，我只有:

 <audio controls height="100" width="100" preload="auto">
    <source src="/.../song/show/1/" type="audio/ogg">
    <embed height="50" width="100" src="/.../song/show/1/">
  </audio>

错误如下:

Traceback (most recent call last):
  File "/usr/lib/python2.7/wsgiref/handlers.py", line 86, in run
    self.finish_response()
  File "/usr/lib/python2.7/wsgiref/handlers.py", line 127, in finish_response
    self.write(data)
  File "/usr/lib/python2.7/wsgiref/handlers.py", line 215, in write
    self._write(data)
  File "/usr/lib/python2.7/socket.py", line 324, in write
    self.flush()
  File "/usr/lib/python2.7/socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 104] Connection reset by peer
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 46392)
Traceback (most recent call last):
  File "/usr/lib/python2.7/SocketServer.py", line 593, in process_request_thread
    self.finish_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 334, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/home/lumy/SPhoque/SonoPhoque/SoPhoque/local/lib/python2.7/site-packages/django/core/servers/basehttp.py", line 150, in __init__
    super(WSGIRequestHandler, self).__init__(*args, **kwargs)
  File "/usr/lib/python2.7/SocketServer.py", line 651, in __init__
    self.finish()
  File "/usr/lib/python2.7/SocketServer.py", line 704, in finish
    self.wfile.flush()
  File "/usr/lib/python2.7/socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 32] Broken pipe

每次我尝试流式传输时，都会遇到这个问题。

---

编辑15h 29/05:

我按照rahan的建议做了:查看Firebug和Firefox调试器:

客户端执行:

GET 1   200 OK localhost:8000 537.1KB 4.71s
Headers
Response Headersview source
Date    Wed, 29 May 2013 13:08:54 GMT
Server  WSGIServer/0.1 Python/2.7.3
Content-Type    audio/ogg
Request Headersview source
Host    localhost:8000
User-Agent  Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20100101 Firefox/10.0.12 Iceweasel/10.0.12
Accept  audio/webm,audio/ogg,audio/wav,audio/*;q=0.9,application/ogg;q=0.7,video/*;q=0.6,*/*;q=0.5
Accept-Language en-us,en;q=0.5
Connection  keep-alive
Range   bytes=0-
Referer http://localhost:8000/

和细节说明所有文档的总大小为1 MB(来自缓存的526 KB)

Answer 1

可能是我越过你现有的解决方案，我有一个建议，mp3流使用nginx/apache服务器，这些天有解决方案被称为sendfile，例如在你的情况下django视图

def send_file_header(server_type):
    header = "X-Sendfile" if server_type == "apache" else "X-Accel-Redirect"
    return header
@login_required
def show_song(request, pk):
    res =  HttpResponse()
    path = "/path/to/secret/x.mp3"
    response[send_file_header('nginx')] = path
    response['Content-Type']= "application/octet-stream"
    response['Content-Disposition'] = "attachment; filename="x.mp3""
    return response