static int http_connect(URLContext *h, const char *path, const char *local_path, const char *hoststr, const char *auth, const char *proxyauth, int *new_location) { HTTPContext *s = h->priv_data; int post, err; char headers[1024] = ""; char *authstr = NULL, *proxyauthstr = NULL; int64_t off = s->off; int len = 0; const char *method; /* send http header */ post = h->flags & AVIO_FLAG_WRITE; if (s->post_data) { /* force POST method and disable chunked encoding when * custom HTTP post data is set */ post = 1; s->chunked_post = 0; } method = post ? "POST" : "GET"; authstr = ff_http_auth_create_response(&s->auth_state, auth, local_path, method); proxyauthstr = ff_http_auth_create_response(&s->proxy_auth_state, proxyauth, local_path, method); /* set default headers if needed */ if (!has_header(s->headers, "\r\nUser-Agent: ")) len += av_strlcatf(headers + len, sizeof(headers) - len, "User-Agent: %s\r\n", LIBAVFORMAT_IDENT); if (!has_header(s->headers, "\r\nAccept: ")) len += av_strlcpy(headers + len, "Accept: */*\r\n", sizeof(headers) - len); if (!has_header(s->headers, "\r\nRange: ") && !post) len += av_strlcatf(headers + len, sizeof(headers) - len, "Range: bytes=%"PRId64"-\r\n", s->off); if (!has_header(s->headers, "\r\nConnection: ")) { if (s->multiple_requests) { len += av_strlcpy(headers + len, "Connection: keep-alive\r\n", sizeof(headers) - len); } else { len += av_strlcpy(headers + len, "Connection: close\r\n", sizeof(headers) - len); } } if (!has_header(s->headers, "\r\nHost: ")) len += av_strlcatf(headers + len, sizeof(headers) - len, "Host: %s\r\n", hoststr); if (!has_header(s->headers, "\r\nContent-Length: ") && s->post_data) len += av_strlcatf(headers + len, sizeof(headers) - len, "Content-Length: %d\r\n", s->post_datalen); /* now add in custom headers */ if (s->headers) av_strlcpy(headers + len, s->headers, sizeof(headers) - len); snprintf(s->buffer, sizeof(s->buffer), "%s %s HTTP/1.1\r\n" "%s" "%s" "%s" "%s%s" "\r\n", method, path, post && s->chunked_post ? "Transfer-Encoding: chunked\r\n" : "", headers, authstr ? authstr : "", proxyauthstr ? "Proxy-" : "", proxyauthstr ? proxyauthstr : ""); av_freep(&authstr); av_freep(&proxyauthstr); if ((err = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0) return err; if (s->post_data) if ((err = ffurl_write(s->hd, s->post_data, s->post_datalen)) < 0) return err; /* init input buffer */ s->buf_ptr = s->buffer; s->buf_end = s->buffer; s->line_count = 0; s->off = 0; s->filesize = -1; s->willclose = 0; s->end_chunked_post = 0; s->end_header = 0; if (post && !s->post_data) { /* Pretend that it did work. We didn't read any header yet, since * we've still to send the POST data, but the code calling this * function will check http_code after we return. */ s->http_code = 200; return 0; } /* wait for header */ err = http_read_header(h, new_location); if (err < 0) return err; return (off == s->off) ? 0 : -1; }