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http: deal with partial CONNECT sends

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Also added 'CURL_SMALLSENDS' to make Curl_write() send short packets,
which helped verifying this even more.

Add test 363 to verify.

Reported-by: ustcqidi on github
Fixes #6950
Closes #7024
This commit is contained in:
Daniel Stenberg 2021-05-06 13:04:03 +02:00
parent 63813a0325
commit 51c0ebcff2
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GPG key ID: 5CC908FDB71E12C2
8 changed files with 213 additions and 54 deletions
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24
lib/http_proxy.h
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@ -38,15 +38,39 @@ CURLcode Curl_proxy_connect(struct Curl_easy *data, int sockindex);
bool Curl_connect_complete(struct connectdata *conn);
bool Curl_connect_ongoing(struct connectdata *conn);
int Curl_connect_getsock(struct connectdata *conn);
#else
#define Curl_proxyCONNECT(x,y,z,w) CURLE_NOT_BUILT_IN
#define Curl_proxy_connect(x,y) CURLE_OK
#define Curl_connect_complete(x) CURLE_OK
#define Curl_connect_ongoing(x) FALSE
#define Curl_connect_getsock(x) 0
#endif
void Curl_connect_free(struct Curl_easy *data);
void Curl_connect_done(struct Curl_easy *data);
/* struct for HTTP CONNECT state data */
struct http_connect_state {
struct HTTP http_proxy;
struct HTTP *prot_save;
struct dynbuf rcvbuf;
struct dynbuf req;
size_t nsend;
enum keeponval {
KEEPON_DONE,
KEEPON_CONNECT,
KEEPON_IGNORE
} keepon;
curl_off_t cl; /* size of content to read and ignore */
enum {
TUNNEL_INIT, /* init/default/no tunnel state */
TUNNEL_CONNECT, /* CONNECT has been sent off */
TUNNEL_COMPLETE /* CONNECT response received completely */
} tunnel_state;
BIT(chunked_encoding);
BIT(close_connection);
};
#endif /* HEADER_CURL_HTTP_PROXY_H */