Django接收自定义httpheader过程详解-创新互联
add by zhj: Django将所有http header(包括你自定义的http header)都放在了HttpRequest.META这个Python标准字典中,当然HttpRequest.META
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(1) 所有header名大写,将连接符“-”改为下划线“_”
(2) 除CONTENT_TYPE和CONTENT_LENGTH,其它的header名称前加“HTTP_”前缀
参见 https://docs.djangoproject.com/en/1.6/ref/request-response/#django.http.HttpRequest.META
我个人比较喜欢跟踪源代码来查看,源代码如下,
class WSGIRequestHandler(BaseHTTPRequestHandler): server_version = "WSGIServer/" + __version__ def get_environ(self): env = self.server.base_environ.copy() env['SERVER_PROTOCOL'] = self.request_version env['REQUEST_METHOD'] = self.command if '?' in self.path: path,query = self.path.split('?',1) else: path,query = self.path,'' env['PATH_INFO'] = urllib.unquote(path) env['QUERY_STRING'] = query host = self.address_string() if host != self.client_address[0]: env['REMOTE_HOST'] = host env['REMOTE_ADDR'] = self.client_address[0] if self.headers.typeheader is None: env['CONTENT_TYPE'] = self.headers.type else: env['CONTENT_TYPE'] = self.headers.typeheader length = self.headers.getheader('content-length') if length: env['CONTENT_LENGTH'] = length for h in self.headers.headers: k,v = h.split(':',1) k=k.replace('-','_').upper(); v=v.strip() if k in env: continue # skip content length, type,etc. if 'HTTP_'+k in env: env['HTTP_'+k] += ','+v # comma-separate multiple headers else: env['HTTP_'+k] = v return env def get_stderr(self): return sys.stderr def handle(self): """Handle a single HTTP request""" self.raw_requestline = self.rfile.readline() if not self.parse_request(): # An error code has been sent, just exit return handler = ServerHandler( self.rfile, self.wfile, self.get_stderr(), self.get_environ() ) handler.request_handler = self # backpointer for logging handler.run(self.server.get_app())
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