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bad headers can come in two kinds, we either treat everything as one big

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badly assumed header, or we think that parts of the buffer is a bad header
and the rest is treated as a normal body part
This commit is contained in:
Daniel Stenberg 2002-10-23 13:48:37 +00:00
parent 13ee2901f4
commit b5a74715cf
2 changed files with 30 additions and 7 deletions
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30
lib/transfer.c
View File

@ -294,7 +294,7 @@ CURLcode Curl_readwrite(struct connectdata *conn,
if(!strnequal(data->state.headerbuff, "HTTP/", 5)) {
/* this is not the beginning of a HTTP first header line */
k->header = FALSE;
k->badheader = TRUE;
k->badheader = HEADER_ALLBAD;
break;
}
}
@ -342,6 +342,17 @@ CURLcode Curl_readwrite(struct connectdata *conn,
* We now have a FULL header line that p points to
*****/
if(!k->headerline) {
/* the first read header */
if((k->hbuflen>5) &&
!strnequal(data->state.headerbuff, "HTTP/", 5)) {
/* this is not the beginning of a HTTP first header line */
k->header = FALSE;
k->badheader = HEADER_PARTHEADER;
break;
}
}
if (('\n' == *k->p) || ('\r' == *k->p)) {
int headerlen;
/* Zero-length header line means end of headers! */
@ -505,7 +516,6 @@ CURLcode Curl_readwrite(struct connectdata *conn,
}
else {
k->header = FALSE; /* this is not a header line */
k->badheader = TRUE; /* this was a bad header */
break;
}
}
@ -764,8 +774,16 @@ CURLcode Curl_readwrite(struct connectdata *conn,
k->bodywrites++;
/* pass data to the debug function before it gets "dechunked" */
if(data->set.verbose)
Curl_debug(data, CURLINFO_DATA_IN, k->str, nread);
if(data->set.verbose) {
if(k->badheader) {
Curl_debug(data, CURLINFO_DATA_IN, data->state.headerbuff,
k->hbuflen);
if(k->badheader == HEADER_PARTHEADER)
Curl_debug(data, CURLINFO_DATA_IN, k->str, nread);
}
else
Curl_debug(data, CURLINFO_DATA_IN, k->str, nread);
}
if(conn->bits.chunk) {
/*
@ -820,9 +838,8 @@ CURLcode Curl_readwrite(struct connectdata *conn,
result = Curl_client_write(data, CLIENTWRITE_BODY,
data->state.headerbuff,
k->hbuflen);
k->badheader = FALSE; /* taken care of now */
}
else {
if(k->badheader < HEADER_ALLBAD) {
/* This switch handles various content encodings. If there's an
error here, be sure to check over the almost identical code in
http_chunk.c. 08/29/02 jhrg */
@ -855,6 +872,7 @@ CURLcode Curl_readwrite(struct connectdata *conn,
}
#endif
}
k->badheader = HEADER_NORMAL; /* taken care of now */
if(result)
return result;

7
lib/urldata.h
View File

@ -229,7 +229,12 @@ struct Curl_transfer_keeper {
struct timeval start; /* transfer started at this time */
struct timeval now; /* current time */
bool header; /* incoming data has HTTP header */
bool badheader; /* the header was deemed bad and will be
enum {
HEADER_NORMAL, /* no bad header at all */
HEADER_PARTHEADER, /* part of the chunk is a bad header, the rest is
normal data */
HEADER_ALLBAD /* all was believed to be header */
} badheader; /* the header was deemed bad and will be
written as body */
int headerline; /* counts header lines to better track the
first one */