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The initial HTTP request can now be sent in multiple parts, as part of the

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regular transfer process. This required some new tweaks, like for example
we need to be able to tell the tranfer loop to not chunky-encode uploads
while we're transferring the rest of the request...
This commit is contained in:
Daniel Stenberg
2002-12-10 13:10:00 +00:00
parent b3c7cd61f3
commit db6ff224f8
3 changed files with 171 additions and 76 deletions
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82
lib/transfer.c
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@@ -118,6 +118,51 @@ enum {
changed. It should just remain a blanked-out timeout value. */
static struct timeval notimeout={0,0};
/*
* This function will call the read callback to fill our buffer with data
* to upload.
*/
static int fillbuffer(struct connectdata *conn,
int bytes)
{
int buffersize = bytes;
int nread;
if(conn->bits.upload_chunky) {
/* if chunked Transfer-Encoding */
buffersize -= (8 + 2 + 2); /* 32bit hex + CRLF + CRLF */
conn->upload_fromhere += 10; /* 32bit hex + CRLF */
}
nread = conn->fread(conn->upload_fromhere, 1,
buffersize, conn->fread_in);
if(!conn->bits.forbidchunk && conn->bits.upload_chunky) {
/* if chunked Transfer-Encoding */
char hexbuffer[11];
int hexlen = snprintf(hexbuffer, sizeof(hexbuffer),
"%x\r\n", nread);
/* move buffer pointer */
conn->upload_fromhere -= hexlen;
nread += hexlen;
/* copy the prefix to the buffer */
memcpy(conn->upload_fromhere, hexbuffer, hexlen);
if(nread>hexlen) {
/* append CRLF to the data */
memcpy(conn->upload_fromhere +
nread, "\r\n", 2);
nread+=2;
}
else {
/* mark this as done once this chunk is transfered */
conn->keep.upload_done = TRUE;
}
}
return nread;
}
CURLcode Curl_readwrite(struct connectdata *conn,
bool *done)
{
@@ -862,44 +907,11 @@ CURLcode Curl_readwrite(struct connectdata *conn,
/* only read more data if there's no upload data already
present in the upload buffer */
if(0 == conn->upload_present) {
size_t buffersize = BUFSIZE;
/* init the "upload from here" pointer */
conn->upload_fromhere = k->uploadbuf;
if(!k->upload_done) {
if(conn->bits.upload_chunky) {
/* if chunked Transfer-Encoding */
buffersize -= (8 + 2 + 2); /* 32bit hex + CRLF + CRLF */
conn->upload_fromhere += 10; /* 32bit hex + CRLF */
}
nread = conn->fread(conn->upload_fromhere, 1,
buffersize, conn->fread_in);
if(conn->bits.upload_chunky) {
/* if chunked Transfer-Encoding */
char hexbuffer[9];
int hexlen = snprintf(hexbuffer, sizeof(hexbuffer),
"%x\r\n", nread);
/* move buffer pointer */
conn->upload_fromhere -= hexlen;
nread += hexlen;
/* copy the prefix to the buffer */
memcpy(conn->upload_fromhere, hexbuffer, hexlen);
if(nread>hexlen) {
/* append CRLF to the data */
memcpy(conn->upload_fromhere +
nread, "\r\n", 2);
nread+=2;
}
else {
/* mark this as done once this chunk is transfered */
k->upload_done = TRUE;
}
}
}
if(!k->upload_done)
nread = fillbuffer(conn, BUFSIZE);
else
nread = 0; /* we're done uploading/reading */