From: Christian Grothoff Date: Tue, 5 Jun 2018 07:32:30 +0000 (+0200) Subject: fix handling of chunked encoding by proxy, and handling of connection termination X-Git-Tag: v0.11.0pre66~23 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=7661f73f0d6def50830323e420ba7b78e791369a;p=oweals%2Fgnunet.git fix handling of chunked encoding by proxy, and handling of connection termination --- diff --git a/src/gns/gnunet-gns-proxy.c b/src/gns/gnunet-gns-proxy.c index 0d7d83b4b..fcd69599b 100644 --- a/src/gns/gnunet-gns-proxy.c +++ b/src/gns/gnunet-gns-proxy.c @@ -626,6 +626,11 @@ struct Socks5Request * Did we suspend MHD processing? */ int suspended; + + /** + * Did we pause CURL processing? + */ + int curl_paused; }; @@ -823,7 +828,9 @@ mhd_content_cb (void *cls, start the download, the IO buffer is still full with upload data. */ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Pausing MHD download, not yet ready for download\n"); + "Pausing MHD download %s%s, not yet ready for download\n", + s5r->domain, + s5r->url); return 0; /* not yet ready for data download */ } bytes_to_copy = GNUNET_MIN (max, @@ -832,12 +839,21 @@ mhd_content_cb (void *cls, (SOCKS5_SOCKET_DOWNLOAD_DONE != s5r->state) ) { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Pausing MHD download, no data available\n"); + "Pausing MHD download %s%s, no data available\n", + s5r->domain, + s5r->url); if (NULL != s5r->curl) { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Continuing CURL interaction\n"); - curl_easy_pause (s5r->curl, CURLPAUSE_CONT); + "Continuing CURL interaction for %s%s\n", + s5r->domain, + s5r->url); + if (GNUNET_YES == s5r->curl_paused) + { + s5r->curl_paused = GNUNET_NO; + curl_easy_pause (s5r->curl, + CURLPAUSE_CONT); + } curl_download_prepare (); } if (GNUNET_NO == s5r->suspended) @@ -851,13 +867,17 @@ mhd_content_cb (void *cls, (SOCKS5_SOCKET_DOWNLOAD_DONE == s5r->state) ) { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Completed MHD download\n"); + "Completed MHD download %s%s\n", + s5r->domain, + s5r->url); return MHD_CONTENT_READER_END_OF_STREAM; } GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Writing %llu/%llu bytes\n", + "Writing %llu/%llu bytes for %s%s\n", (unsigned long long) bytes_to_copy, - (unsigned long long) s5r->io_len); + (unsigned long long) s5r->io_len, + s5r->domain, + s5r->url); GNUNET_memcpy (buf, s5r->io_buf, bytes_to_copy); @@ -865,10 +885,14 @@ mhd_content_cb (void *cls, &s5r->io_buf[bytes_to_copy], s5r->io_len - bytes_to_copy); s5r->io_len -= bytes_to_copy; - if (NULL != s5r->curl) + if ( (NULL != s5r->curl) && + (GNUNET_YES == s5r->curl_paused) ) { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Continuing CURL interaction\n"); + "Continuing CURL interaction for %s%s\n", + s5r->domain, + s5r->url); + s5r->curl_paused = GNUNET_NO; curl_easy_pause (s5r->curl, CURLPAUSE_CONT); } @@ -1269,6 +1293,7 @@ create_mhd_response_from_s5r (struct Socks5Request *s5r) return GNUNET_OK; } + /** * Handle response payload data from cURL. Copies it into our `io_buf` to make * it available to MHD. @@ -1288,6 +1313,12 @@ curl_download_cb (void *ptr, struct Socks5Request *s5r = ctx; size_t total = size * nmemb; + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Receiving %ux%u bytes for `%s%s' from cURL\n", + (unsigned int) size, + (unsigned int) nmemb, + s5r->domain, + s5r->url); if (NULL == s5r->response) GNUNET_assert (GNUNET_OK == create_mhd_response_from_s5r (s5r)); @@ -1302,6 +1333,7 @@ curl_download_cb (void *ptr, "Pausing CURL download `%s%s', waiting for UPLOAD to finish\n", s5r->domain, s5r->url); + s5r->curl_paused = GNUNET_YES; return CURL_WRITEFUNC_PAUSE; /* not yet ready for data download */ } if (sizeof (s5r->io_buf) - s5r->io_len < total) @@ -1313,6 +1345,7 @@ curl_download_cb (void *ptr, (unsigned long long) sizeof (s5r->io_buf), (unsigned long long) s5r->io_len, (unsigned long long) total); + s5r->curl_paused = GNUNET_YES; return CURL_WRITEFUNC_PAUSE; /* not enough space */ } GNUNET_memcpy (&s5r->io_buf[s5r->io_len], @@ -1381,7 +1414,9 @@ curl_upload_cb (void *buf, } to_copy = GNUNET_MIN (s5r->io_len, len); - GNUNET_memcpy (buf, s5r->io_buf, to_copy); + GNUNET_memcpy (buf, + s5r->io_buf, + to_copy); memmove (s5r->io_buf, &s5r->io_buf[to_copy], s5r->io_len - to_copy); @@ -1495,6 +1530,9 @@ curl_task_download (void *cls) running = 0; mret = curl_multi_perform (curl_multi, &running); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Checking CURL multi status: %d\n", + mret); while (NULL != (msg = curl_multi_info_read (curl_multi, &msgnum))) { @@ -1527,7 +1565,12 @@ curl_task_download (void *cls) GNUNET_assert (GNUNET_OK == create_mhd_response_from_s5r (s5r)); } - s5r->state = SOCKS5_SOCKET_DOWNLOAD_DONE; + s5r->state = SOCKS5_SOCKET_DOWNLOAD_DONE; + if (GNUNET_YES == s5r->suspended) + { + MHD_resume_connection (s5r->con); + s5r->suspended = GNUNET_NO; + } run_mhd_now (s5r->hd); break; default: @@ -1538,6 +1581,11 @@ curl_task_download (void *cls) curl_easy_strerror (msg->data.result)); /* FIXME: indicate error somehow? close MHD connection badly as well? */ s5r->state = SOCKS5_SOCKET_DOWNLOAD_DONE; + if (GNUNET_YES == s5r->suspended) + { + MHD_resume_connection (s5r->con); + s5r->suspended = GNUNET_NO; + } run_mhd_now (s5r->hd); break; } @@ -1737,7 +1785,7 @@ create_response (void *cls, curl_easy_setopt (s5r->curl, CURLOPT_TIMEOUT, 600L); curl_easy_setopt (s5r->curl, CURLOPT_NOSIGNAL, 1L); curl_easy_setopt (s5r->curl, CURLOPT_HTTP_CONTENT_DECODING, 0); - curl_easy_setopt (s5r->curl, CURLOPT_HTTP_TRANSFER_DECODING, 0); + // curl_easy_setopt (s5r->curl, CURLOPT_HTTP_TRANSFER_DECODING, 0); curl_easy_setopt (s5r->curl, CURLOPT_NOSIGNAL, 1L); curl_easy_setopt (s5r->curl, CURLOPT_PRIVATE, s5r); curl_easy_setopt (s5r->curl, CURLOPT_VERBOSE, 0L); @@ -1941,8 +1989,12 @@ create_response (void *cls, s5r->io_len += left; *upload_data_size -= left; GNUNET_assert (NULL != s5r->curl); - curl_easy_pause (s5r->curl, - CURLPAUSE_CONT); + if (GNUNET_YES == s5r->curl_paused) + { + s5r->curl_paused = GNUNET_NO; + curl_easy_pause (s5r->curl, + CURLPAUSE_CONT); + } return MHD_YES; } if (SOCKS5_SOCKET_UPLOAD_STARTED == s5r->state) @@ -2442,9 +2494,11 @@ generate_gns_certificate (const char *name) etime = mktime (tm_data); gnutls_x509_crt_set_expiration_time (request, etime); - gnutls_x509_crt_sign (request, - proxy_ca.cert, - proxy_ca.key); + gnutls_x509_crt_sign2 (request, + proxy_ca.cert, + proxy_ca.key, + GNUTLS_DIG_SHA512, + 0); key_buf_size = sizeof (pgc->key); cert_buf_size = sizeof (pgc->cert); gnutls_x509_crt_export (request, GNUTLS_X509_FMT_PEM,