diff options
| -rw-r--r-- | lib/c-hyper.c | 16 | ||||
| -rw-r--r-- | lib/http.c | 68 | ||||
| -rw-r--r-- | lib/http.h | 2 |
3 files changed, 41 insertions, 45 deletions
diff --git a/lib/c-hyper.c b/lib/c-hyper.c index bc3f82135..7ce958adb 100644 --- a/lib/c-hyper.c +++ b/lib/c-hyper.c @@ -299,8 +299,14 @@ static CURLcode status_line(struct Curl_easy *data, */ static CURLcode empty_header(struct Curl_easy *data) { - return hyper_each_header(data, NULL, 0, NULL, 0) ? - CURLE_WRITE_ERROR : CURLE_OK; + CURLcode result = Curl_http_size(data); + if(!result) { + result = hyper_each_header(data, NULL, 0, NULL, 0) ? + CURLE_WRITE_ERROR : CURLE_OK; + if(result) + failf(data, "hyperstream: couldn't pass blank header"); + } + return result; } CURLcode Curl_hyper_stream(struct Curl_easy *data, @@ -443,11 +449,9 @@ CURLcode Curl_hyper_stream(struct Curl_easy *data, break; } - if(empty_header(data)) { - failf(data, "hyperstream: couldn't pass blank header"); - result = CURLE_OUT_OF_MEMORY; + result = empty_header(data); + if(result) break; - } /* Curl_http_auth_act() checks what authentication methods that are * available and decides which one (if any) to use. It will set 'newurl' diff --git a/lib/http.c b/lib/http.c index 8f5457adc..4777750ec 100644 --- a/lib/http.c +++ b/lib/http.c @@ -2903,20 +2903,6 @@ CURLcode Curl_http_firstwrite(struct Curl_easy *data, { struct SingleRequest *k = &data->req; - if(data->req.ignore_cl) { - k->size = k->maxdownload = -1; - } - else if(k->size != -1) { - /* We wait until after all headers have been received to set this so that - we know for sure Content-Length is valid. */ - if(data->set.max_filesize && - k->size > data->set.max_filesize) { - failf(data, "Maximum file size exceeded"); - return CURLE_FILESIZE_EXCEEDED; - } - Curl_pgrsSetDownloadSize(data, k->size); - } - if(data->req.newurl) { if(conn->bits.close) { /* Abort after the headers if "follow Location" is set @@ -3787,6 +3773,29 @@ CURLcode Curl_http_statusline(struct Curl_easy *data, return CURLE_OK; } +/* Content-Length must be ignored if any Transfer-Encoding is present in the + response. Refer to RFC 7230 section 3.3.3 and RFC2616 section 4.4. This is + figured out here after all headers have been received but before the final + call to the user's header callback, so that a valid content length can be + retrieved by the user in the final call. */ +CURLcode Curl_http_size(struct Curl_easy *data) +{ + struct SingleRequest *k = &data->req; + if(data->req.ignore_cl || k->chunk) { + k->size = k->maxdownload = -1; + } + else if(k->size != -1) { + if(data->set.max_filesize && + k->size > data->set.max_filesize) { + failf(data, "Maximum file size exceeded"); + return CURLE_FILESIZE_EXCEEDED; + } + Curl_pgrsSetDownloadSize(data, k->size); + k->maxdownload = k->size; + } + return CURLE_OK; +} + /* * Read any HTTP header lines from the server and pass them to the client app. */ @@ -3981,6 +3990,12 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data, } } + if(!k->header) { + result = Curl_http_size(data); + if(result) + return result; + } + /* At this point we have some idea about the fate of the connection. If we are closing the connection it may result auth failure. */ #if defined(USE_NTLM) @@ -4137,31 +4152,6 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data, reason */ *stop_reading = TRUE; #endif - else { - /* If we know the expected size of this document, we set the - maximum download size to the size of the expected - document or else, we won't know when to stop reading! - - Note that we set the download maximum even if we read a - "Connection: close" header, to make sure that - "Content-Length: 0" still prevents us from attempting to - read the (missing) response-body. - */ - /* According to RFC2616 section 4.4, we MUST ignore - Content-Length: headers if we are now receiving data - using chunked Transfer-Encoding. - */ - if(k->chunk) - k->maxdownload = k->size = -1; - } - if(-1 != k->size) { - /* We do this operation even if no_body is true, since this - data might be retrieved later with curl_easy_getinfo() - and its CURLINFO_CONTENT_LENGTH_DOWNLOAD option. */ - - Curl_pgrsSetDownloadSize(data, k->size); - k->maxdownload = k->size; - } /* If max download size is *zero* (nothing) we already have nothing and can safely return ok now! But for HTTP/2, we'd diff --git a/lib/http.h b/lib/http.h index e4ab466c0..cb5b56faf 100644 --- a/lib/http.h +++ b/lib/http.h @@ -289,6 +289,8 @@ struct http_conn { #endif }; +CURLcode Curl_http_size(struct Curl_easy *data); + CURLcode Curl_http_readwrite_headers(struct Curl_easy *data, struct connectdata *conn, ssize_t *nread, |