CURLcode Curl_telnet(struct connectdata *conn)
{
CURLcode code;
struct SessionHandle *data = conn->data;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
#if defined(WIN32) || defined(WIN64)
HMODULE wsock2;
WSOCK2_FUNC close_event_func;
WSOCK2_FUNC create_event_func;
WSOCK2_FUNC event_select_func;
WSOCK2_FUNC enum_netevents_func;
WSAEVENT event_handle;
WSANETWORKEVENTS events;
HANDLE stdin_handle;
HANDLE objs[2];
DWORD waitret;
DWORD readfile_read;
#else
fd_set readfd;
fd_set keepfd;
#endif
ssize_t nread;
bool keepon = TRUE;
char *buf = data->state.buffer;
struct TELNET *tn;
code = init_telnet(conn);
if(code)
return code;
tn = (struct TELNET *)conn->proto.telnet;
code = check_telnet_options(conn);
if(code)
return code;
#if defined(WIN32) || defined(WIN64)
/*
** This functionality only works with WinSock >= 2.0. So,
** make sure have it.
*/
code = check_wsock2(data);
if (code)
return code;
/* OK, so we have WinSock 2.0. We need to dynamically */
/* load ws2_32.dll and get the function pointers we need. */
wsock2 = LoadLibrary("WS2_32.DLL");
if (wsock2 == NULL) {
failf(data,"failed to load WS2_32.DLL (%d)",GetLastError());
return CURLE_FAILED_INIT;
}
/* Grab a pointer to WSACreateEvent */
create_event_func = GetProcAddress(wsock2,"WSACreateEvent");
if (create_event_func == NULL) {
failf(data,"failed to find WSACreateEvent function (%d)",
GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* And WSACloseEvent */
close_event_func = GetProcAddress(wsock2,"WSACloseEvent");
if (create_event_func == NULL) {
failf(data,"failed to find WSACloseEvent function (%d)",
GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* And WSAEventSelect */
event_select_func = GetProcAddress(wsock2,"WSAEventSelect");
if (event_select_func == NULL) {
failf(data,"failed to find WSAEventSelect function (%d)",
GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* And WSAEnumNetworkEvents */
enum_netevents_func = GetProcAddress(wsock2,"WSAEnumNetworkEvents");
if (enum_netevents_func == NULL) {
failf(data,"failed to find WSAEnumNetworkEvents function (%d)",
GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* We want to wait for both stdin and the socket. Since
** the select() function in winsock only works on sockets
** we have to use the WaitForMultipleObjects() call.
*/
/* First, create a sockets event object */
event_handle = (WSAEVENT)create_event_func();
if (event_handle == WSA_INVALID_EVENT) {
failf(data,"WSACreateEvent failed (%d)",WSAGetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* The get the Windows file handle for stdin */
stdin_handle = GetStdHandle(STD_INPUT_HANDLE);
/* Create the list of objects to wait for */
objs[0] = stdin_handle;
objs[1] = event_handle;
/* Tell winsock what events we want to listen to */
if(event_select_func(sockfd, event_handle, FD_READ|FD_CLOSE) == SOCKET_ERROR) {
close_event_func(event_handle);
FreeLibrary(wsock2);
return 0;
}
/* Keep on listening and act on events */
while(keepon) {
waitret = WaitForMultipleObjects(2, objs, FALSE, INFINITE);
switch(waitret - WAIT_OBJECT_0) {
case 0:
{
unsigned char outbuf[2];
int out_count = 0;
ssize_t bytes_written;
char *buffer = buf;
if(!ReadFile(stdin_handle, buf, sizeof(data->state.buffer),
&readfile_read, NULL)) {
keepon = FALSE;
break;
}
nread = readfile_read;
while(nread--) {
outbuf[0] = *buffer++;
out_count = 1;
if(outbuf[0] == CURL_IAC)
outbuf[out_count++] = CURL_IAC;
Curl_write(conn, conn->sock[FIRSTSOCKET], outbuf,
out_count, &bytes_written);
}
}
break;
case 1:
if(enum_netevents_func(sockfd, event_handle, &events)
!= SOCKET_ERROR) {
if(events.lNetworkEvents & FD_READ) {
/* This reallu OUGHT to check its return code. */
(void)Curl_read(conn, sockfd, buf, BUFSIZE - 1, &nread);
telrcv(conn, (unsigned char *)buf, nread);
fflush(stdout);
/* Negotiate if the peer has started negotiating,
otherwise don't. We don't want to speak telnet with
non-telnet servers, like POP or SMTP. */
if(tn->please_negotiate && !tn->already_negotiated) {
negotiate(conn);
tn->already_negotiated = 1;
}
}
if(events.lNetworkEvents & FD_CLOSE) {
keepon = FALSE;
}
}
break;
}
}
/* We called WSACreateEvent, so call WSACloseEvent */
if (close_event_func(event_handle) == FALSE) {
infof(data,"WSACloseEvent failed (%d)",WSAGetLastError());
}
/* "Forget" pointers into the library we're about to free */
create_event_func = NULL;
close_event_func = NULL;
event_select_func = NULL;
enum_netevents_func = NULL;
/* We called LoadLibrary, so call FreeLibrary */
if (!FreeLibrary(wsock2))
infof(data,"FreeLibrary(wsock2) failed (%d)",GetLastError());
#else
FD_ZERO (&readfd); /* clear it */
FD_SET (sockfd, &readfd);
FD_SET (0, &readfd);
keepfd = readfd;
while (keepon) {
struct timeval interval;
readfd = keepfd; /* set this every lap in the loop */
interval.tv_sec = 1;
interval.tv_usec = 0;
switch (select (sockfd + 1, &readfd, NULL, NULL, &interval)) {
case -1: /* error, stop reading */
keepon = FALSE;
continue;
case 0: /* timeout */
break;
default: /* read! */
if(FD_ISSET(0, &readfd)) { /* read from stdin */
unsigned char outbuf[2];
int out_count = 0;
ssize_t bytes_written;
char *buffer = buf;
nread = read(0, buf, 255);
while(nread--) {
outbuf[0] = *buffer++;
out_count = 1;
if(outbuf[0] == CURL_IAC)
outbuf[out_count++] = CURL_IAC;
Curl_write(conn, conn->sock[FIRSTSOCKET], outbuf,
out_count, &bytes_written);
}
}
if(FD_ISSET(sockfd, &readfd)) {
/* This OUGHT to check the return code... */
(void)Curl_read(conn, sockfd, buf, BUFSIZE - 1, &nread);
/* if we receive 0 or less here, the server closed the connection and
we bail out from this! */
if (nread <= 0) {
keepon = FALSE;
break;
}
telrcv(conn, (unsigned char *)buf, nread);
/* Negotiate if the peer has started negotiating,
otherwise don't. We don't want to speak telnet with
non-telnet servers, like POP or SMTP. */
if(tn->please_negotiate && !tn->already_negotiated) {
negotiate(conn);
tn->already_negotiated = 1;
}
}
}
if(data->set.timeout) {
struct timeval now; /* current time */
now = Curl_tvnow();
if(Curl_tvdiff(now, conn->created)/1000 >= data->set.timeout) {
failf(data, "Time-out");
code = CURLE_OPERATION_TIMEOUTED;
keepon = FALSE;
}
}
}
#endif
/* mark this as "no further transfer wanted" */
Curl_Transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
return code;
}
CURLcode Curl_dict(struct connectdata *conn)
{
char *word;
char *ppath;
char *database = NULL;
char *strategy = NULL;
char *nthdef = NULL; /* This is not part of the protocol, but required
by RFC 2229 */
CURLcode result=CURLE_OK;
struct SessionHandle *data=conn->data;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
char *path = conn->path;
curl_off_t *bytecount = &conn->bytecount;
if(conn->bits.user_passwd) {
/* AUTH is missing */
}
if (strnequal(path, DICT_MATCH, sizeof(DICT_MATCH)-1) ||
strnequal(path, DICT_MATCH2, sizeof(DICT_MATCH2)-1) ||
strnequal(path, DICT_MATCH3, sizeof(DICT_MATCH3)-1)) {
word = strchr(path, ':');
if (word) {
word++;
database = strchr(word, ':');
if (database) {
*database++ = (char)0;
strategy = strchr(database, ':');
if (strategy) {
*strategy++ = (char)0;
nthdef = strchr(strategy, ':');
if (nthdef) {
*nthdef++ = (char)0;
}
}
}
}
if ((word == NULL) || (*word == (char)0)) {
failf(data, "lookup word is missing");
}
if ((database == NULL) || (*database == (char)0)) {
database = (char *)"!";
}
if ((strategy == NULL) || (*strategy == (char)0)) {
strategy = (char *)".";
}
result = Curl_sendf(sockfd, conn,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\n"
"MATCH "
"%s " /* database */
"%s " /* strategy */
"%s\n" /* word */
"QUIT\n",
database,
strategy,
word
);
if(result)
failf(data, "Failed sending DICT request");
else
result = Curl_Transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount,
-1, NULL); /* no upload */
if(result)
return result;
}
else if (strnequal(path, DICT_DEFINE, sizeof(DICT_DEFINE)-1) ||
strnequal(path, DICT_DEFINE2, sizeof(DICT_DEFINE2)-1) ||
strnequal(path, DICT_DEFINE3, sizeof(DICT_DEFINE3)-1)) {
word = strchr(path, ':');
if (word) {
word++;
database = strchr(word, ':');
if (database) {
*database++ = (char)0;
nthdef = strchr(database, ':');
if (nthdef) {
*nthdef++ = (char)0;
}
}
}
if ((word == NULL) || (*word == (char)0)) {
failf(data, "lookup word is missing");
}
if ((database == NULL) || (*database == (char)0)) {
database = (char *)"!";
}
result = Curl_sendf(sockfd, conn,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\n"
"DEFINE "
"%s " /* database */
"%s\n" /* word */
"QUIT\n",
database,
word);
if(result)
failf(data, "Failed sending DICT request");
else
result = Curl_Transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount,
-1, NULL); /* no upload */
if(result)
return result;
}
else {
ppath = strchr(path, '/');
if (ppath) {
int i;
ppath++;
for (i = 0; ppath[i]; i++) {
if (ppath[i] == ':')
ppath[i] = ' ';
}
result = Curl_sendf(sockfd, conn,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\n"
"%s\n"
"QUIT\n", ppath);
if(result)
failf(data, "Failed sending DICT request");
else
result = Curl_Transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount,
-1, NULL);
if(result)
return result;
}
}
return CURLE_OK;
}
CURLcode Curl_ldap(struct connectdata *conn)
{
CURLcode status = CURLE_OK;
int rc;
void *(*ldap_open)(char *, int);
int (*ldap_simple_bind_s)(void *, char *, char *);
int (*ldap_unbind_s)(void *);
int (*ldap_url_search_s)(void *, char *, int, void **);
void *(*ldap_first_entry)(void *, void *);
void *(*ldap_next_entry)(void *, void *);
char *(*ldap_err2string)(int);
int (*ldap_entry2text)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long);
int (*ldap_entry2html)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long, char *, char *);
void *server;
void *result;
void *entryIterator;
int ldaptext;
struct SessionHandle *data=conn->data;
infof(data, "LDAP: %s\n", data->change.url);
DynaOpen();
if (libldap == NULL) {
failf(data, "The needed LDAP library/libraries couldn't be opened");
return CURLE_LIBRARY_NOT_FOUND;
}
ldaptext = data->set.ftp_ascii; /* This is a dirty hack */
/* The types are needed because ANSI C distinguishes between
* pointer-to-object (data) and pointer-to-function.
*/
DYNA_GET_FUNCTION(void *(*)(char *, int), ldap_open);
DYNA_GET_FUNCTION(int (*)(void *, char *, char *), ldap_simple_bind_s);
DYNA_GET_FUNCTION(int (*)(void *), ldap_unbind_s);
DYNA_GET_FUNCTION(int (*)(void *, char *, int, void **), ldap_url_search_s);
DYNA_GET_FUNCTION(void *(*)(void *, void *), ldap_first_entry);
DYNA_GET_FUNCTION(void *(*)(void *, void *), ldap_next_entry);
DYNA_GET_FUNCTION(char *(*)(int), ldap_err2string);
DYNA_GET_FUNCTION(int (*)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long), ldap_entry2text);
DYNA_GET_FUNCTION(int (*)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long, char *, char *), ldap_entry2html);
server = ldap_open(conn->hostname, conn->port);
if (server == NULL) {
failf(data, "LDAP: Cannot connect to %s:%d",
conn->hostname, conn->port);
status = CURLE_COULDNT_CONNECT;
} else {
rc = ldap_simple_bind_s(server,
conn->bits.user_passwd?data->state.user:NULL,
conn->bits.user_passwd?data->state.passwd:NULL);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_CANNOT_BIND;
} else {
rc = ldap_url_search_s(server, data->change.url, 0, &result);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_SEARCH_FAILED;
} else {
for (entryIterator = ldap_first_entry(server, result);
entryIterator;
entryIterator = ldap_next_entry(server, entryIterator))
{
if (ldaptext) {
rc = ldap_entry2text(server, NULL, entryIterator, NULL,
NULL, NULL, WriteProc, data,
(char *)"", 0, 0);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_SEARCH_FAILED;
}
} else {
rc = ldap_entry2html(server, NULL, entryIterator, NULL,
NULL, NULL, WriteProc, data,
(char *)"", 0, 0, NULL, NULL);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_SEARCH_FAILED;
}
}
}
}
ldap_unbind_s(server);
}
}
DynaClose();
/* no data to transfer */
Curl_Transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
return status;
}
CURLcode Curl_ldap(struct connectdata *conn)
{
CURLcode status = CURLE_OK;
int rc;
void *(*ldap_init)(char *, int);
int (*ldap_simple_bind_s)(void *, char *, char *);
int (*ldap_unbind_s)(void *);
int (*ldap_url_parse)(char *, LDAPURLDesc **);
void (*ldap_free_urldesc)(void *);
int (*ldap_search_s)(void *, char *, int, char *, char **, int, void **);
int (*ldap_search_st)(void *, char *, int, char *, char **, int, void *, void **);
void *(*ldap_first_entry)(void *, void *);
void *(*ldap_next_entry)(void *, void *);
char *(*ldap_err2string)(int);
char *(*ldap_get_dn)(void *, void *);
char *(*ldap_first_attribute)(void *, void *, void **);
char *(*ldap_next_attribute)(void *, void *, void *);
char **(*ldap_get_values)(void *, void *, char *);
void (*ldap_value_free)(char **);
void (*ldap_memfree)(void *);
void (*ber_free)(void *, int);
void *server;
LDAPURLDesc *ludp;
void *result;
void *entryIterator;
void *ber;
void *attribute;
struct SessionHandle *data=conn->data;
infof(data, "LDAP: %s\n", data->change.url);
DynaOpen();
if (libldap == NULL) {
failf(data, "The needed LDAP library/libraries couldn't be opened");
return CURLE_LIBRARY_NOT_FOUND;
}
/* The types are needed because ANSI C distinguishes between
* pointer-to-object (data) and pointer-to-function.
*/
DYNA_GET_FUNCTION(void *(*)(char *, int), ldap_init);
DYNA_GET_FUNCTION(int (*)(void *, char *, char *), ldap_simple_bind_s);
DYNA_GET_FUNCTION(int (*)(void *), ldap_unbind_s);
DYNA_GET_FUNCTION(int (*)(char *, LDAPURLDesc **), ldap_url_parse);
DYNA_GET_FUNCTION(void (*)(void *), ldap_free_urldesc);
DYNA_GET_FUNCTION(int (*)(void *, char *, int, char *, char **, int, void **), ldap_search_s);
DYNA_GET_FUNCTION(int (*)(void *, char *, int, char *, char **, int, void *, void **), ldap_search_st);
DYNA_GET_FUNCTION(void *(*)(void *, void *), ldap_first_entry);
DYNA_GET_FUNCTION(void *(*)(void *, void *), ldap_next_entry);
DYNA_GET_FUNCTION(char *(*)(int), ldap_err2string);
DYNA_GET_FUNCTION(char *(*)(void *, void *), ldap_get_dn);
DYNA_GET_FUNCTION(char *(*)(void *, void *, void **), ldap_first_attribute);
DYNA_GET_FUNCTION(char *(*)(void *, void *, void *), ldap_next_attribute);
DYNA_GET_FUNCTION(char **(*)(void *, void *, char *), ldap_get_values);
DYNA_GET_FUNCTION(void (*)(char **), ldap_value_free);
DYNA_GET_FUNCTION(void (*)(void *), ldap_memfree);
DYNA_GET_FUNCTION(void (*)(void *, int), ber_free);
server = ldap_init(conn->hostname, conn->port);
if (server == NULL) {
failf(data, "LDAP: Cannot connect to %s:%d",
conn->hostname, conn->port);
status = CURLE_COULDNT_CONNECT;
}
else {
rc = ldap_simple_bind_s(server,
conn->bits.user_passwd?conn->user:NULL,
conn->bits.user_passwd?conn->passwd:NULL);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_CANNOT_BIND;
}
else {
rc = ldap_url_parse(data->change.url, &ludp);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_INVALID_URL;
}
else {
rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope,
ludp->lud_filter, ludp->lud_attrs, 0, &result);
if (rc != 0) {
failf(data, "LDAP: %s", ldap_err2string(rc));
status = CURLE_LDAP_SEARCH_FAILED;
}
else {
for (entryIterator = ldap_first_entry(server, result);
entryIterator;
entryIterator = ldap_next_entry(server, entryIterator)) {
char *dn = ldap_get_dn(server, entryIterator);
char **vals;
int i;
Curl_client_write(data, CLIENTWRITE_BODY, (char *)"DN: ", 4);
Curl_client_write(data, CLIENTWRITE_BODY, dn, 0);
Curl_client_write(data, CLIENTWRITE_BODY, (char *)"\n", 1);
for(attribute = ldap_first_attribute(server, entryIterator,
&ber);
attribute;
attribute = ldap_next_attribute(server, entryIterator,
ber) ) {
vals = ldap_get_values(server, entryIterator, attribute);
if (vals != NULL) {
for(i = 0; (vals[i] != NULL); i++) {
Curl_client_write(data, CLIENTWRITE_BODY, (char*)"\t", 1);
Curl_client_write(data, CLIENTWRITE_BODY, attribute, 0);
Curl_client_write(data, CLIENTWRITE_BODY, (char *)": ", 2);
Curl_client_write(data, CLIENTWRITE_BODY, vals[i], 0);
Curl_client_write(data, CLIENTWRITE_BODY, (char *)"\n", 0);
}
}
/* Free memory used to store values */
ldap_value_free(vals);
}
Curl_client_write(data, CLIENTWRITE_BODY, (char *)"\n", 1);
ldap_memfree(attribute);
ldap_memfree(dn);
if (ber) ber_free(ber, 0);
}
}
ldap_free_urldesc(ludp);
}
ldap_unbind_s(server);
}
}
DynaClose();
/* no data to transfer */
Curl_Transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
return status;
}
CURLcode Curl_http(struct connectdata *conn)
{
struct SessionHandle *data=conn->data;
char *buf = data->state.buffer; /* this is a short cut to the buffer */
CURLcode result=CURLE_OK;
struct HTTP *http;
struct Cookie *co=NULL; /* no cookies from start */
char *ppath = conn->ppath; /* three previous function arguments */
char *host = conn->name;
long *bytecount = &conn->bytecount;
if(!conn->proto.http) {
/* Only allocate this struct if we don't already have it! */
http = (struct HTTP *)malloc(sizeof(struct HTTP));
if(!http)
return CURLE_OUT_OF_MEMORY;
memset(http, 0, sizeof(struct HTTP));
conn->proto.http = http;
}
else
http = conn->proto.http;
/* We default to persistant connections */
conn->bits.close = FALSE;
if ( (conn->protocol&(PROT_HTTP|PROT_FTP)) &&
data->set.upload) {
data->set.httpreq = HTTPREQ_PUT;
}
/* The User-Agent string has been built in url.c already, because it might
have been used in the proxy connect, but if we have got a header with
the user-agent string specified, we erase the previously made string
here. */
if(checkheaders(data, "User-Agent:") && conn->allocptr.uagent) {
free(conn->allocptr.uagent);
conn->allocptr.uagent=NULL;
}
if((conn->bits.user_passwd) && !checkheaders(data, "Authorization:")) {
char *authorization;
/* To prevent the user+password to get sent to other than the original
host due to a location-follow, we do some weirdo checks here */
if(!data->state.this_is_a_follow ||
!data->state.auth_host ||
strequal(data->state.auth_host, conn->hostname)) {
sprintf(data->state.buffer, "%s:%s",
data->state.user, data->state.passwd);
if(Curl_base64_encode(data->state.buffer, strlen(data->state.buffer),
&authorization) >= 0) {
if(conn->allocptr.userpwd)
free(conn->allocptr.userpwd);
conn->allocptr.userpwd = aprintf( "Authorization: Basic %s\015\012",
authorization);
free(authorization);
}
}
}
if((data->change.referer) && !checkheaders(data, "Referer:")) {
if(conn->allocptr.ref)
free(conn->allocptr.ref);
conn->allocptr.ref = aprintf("Referer: %s\015\012", data->change.referer);
}
if(data->set.cookie && !checkheaders(data, "Cookie:")) {
if(conn->allocptr.cookie)
free(conn->allocptr.cookie);
conn->allocptr.cookie = aprintf("Cookie: %s\015\012", data->set.cookie);
}
if(data->cookies) {
co = Curl_cookie_getlist(data->cookies,
host, ppath,
conn->protocol&PROT_HTTPS?TRUE:FALSE);
}
if (data->change.proxy &&
!data->set.tunnel_thru_httpproxy &&
!(conn->protocol&PROT_HTTPS)) {
/* The path sent to the proxy is in fact the entire URL */
ppath = data->change.url;
}
if(HTTPREQ_POST_FORM == data->set.httpreq) {
/* we must build the whole darned post sequence first, so that we have
a size of the whole shebang before we start to send it */
http->sendit = Curl_getFormData(data->set.httppost, &http->postsize);
}
if(!checkheaders(data, "Host:")) {
/* if ptr_host is already set, it is almost OK since we only re-use
connections to the very same host and port, but when we use a HTTP
proxy we have a persistant connect and yet we must change the Host:
header! */
if(conn->allocptr.host)
free(conn->allocptr.host);
if(((conn->protocol&PROT_HTTPS) && (conn->remote_port == PORT_HTTPS)) ||
(!(conn->protocol&PROT_HTTPS) && (conn->remote_port == PORT_HTTP)) )
/* If (HTTPS on port 443) OR (non-HTTPS on port 80) then don't include
the port number in the host string */
conn->allocptr.host = aprintf("Host: %s\r\n", host);
else
conn->allocptr.host = aprintf("Host: %s:%d\r\n", host,
conn->remote_port);
}
if(!checkheaders(data, "Pragma:"))
http->p_pragma = "Pragma: no-cache\r\n";
if(!checkheaders(data, "Accept:"))
http->p_accept = "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n";
if(( (HTTPREQ_POST == data->set.httpreq) ||
(HTTPREQ_POST_FORM == data->set.httpreq) ||
(HTTPREQ_PUT == data->set.httpreq) ) &&
conn->resume_from) {
/**********************************************************************
* Resuming upload in HTTP means that we PUT or POST and that we have
* got a resume_from value set. The resume value has already created
* a Range: header that will be passed along. We need to "fast forward"
* the file the given number of bytes and decrease the assume upload
* file size before we continue this venture in the dark lands of HTTP.
*********************************************************************/
if(conn->resume_from < 0 ) {
/*
* This is meant to get the size of the present remote-file by itself.
* We don't support this now. Bail out!
*/
conn->resume_from = 0;
}
if(conn->resume_from) {
/* do we still game? */
int passed=0;
/* Now, let's read off the proper amount of bytes from the
input. If we knew it was a proper file we could've just
fseek()ed but we only have a stream here */
do {
int readthisamountnow = (conn->resume_from - passed);
int actuallyread;
if(readthisamountnow > BUFSIZE)
readthisamountnow = BUFSIZE;
actuallyread =
data->set.fread(data->state.buffer, 1, readthisamountnow,
data->set.in);
passed += actuallyread;
if(actuallyread != readthisamountnow) {
failf(data, "Could only read %d bytes from the input",
passed);
return CURLE_READ_ERROR;
}
} while(passed != conn->resume_from); /* loop until done */
/* now, decrease the size of the read */
if(data->set.infilesize>0) {
data->set.infilesize -= conn->resume_from;
if(data->set.infilesize <= 0) {
failf(data, "File already completely uploaded");
return CURLE_PARTIAL_FILE;
}
}
/* we've passed, proceed as normal */
}
}
if(conn->bits.use_range) {
/*
* A range is selected. We use different headers whether we're downloading
* or uploading and we always let customized headers override our internal
* ones if any such are specified.
*/
if((data->set.httpreq == HTTPREQ_GET) &&
!checkheaders(data, "Range:")) {
conn->allocptr.rangeline = aprintf("Range: bytes=%s\r\n", conn->range);
}
else if((data->set.httpreq != HTTPREQ_GET) &&
!checkheaders(data, "Content-Range:")) {
if(conn->resume_from) {
/* This is because "resume" was selected */
long total_expected_size= conn->resume_from + data->set.infilesize;
conn->allocptr.rangeline = aprintf("Content-Range: bytes %s%ld/%ld\r\n",
conn->range, total_expected_size-1,
total_expected_size);
}
else {
/* Range was selected and then we just pass the incoming range and
append total size */
conn->allocptr.rangeline = aprintf("Content-Range: bytes %s/%d\r\n",
conn->range, data->set.infilesize);
}
}
}
do {
/* Use 1.1 unless the use specificly asked for 1.0 */
const char *httpstring=
data->set.httpversion==CURL_HTTP_VERSION_1_0?"1.0":"1.1";
send_buffer *req_buffer;
struct curl_slist *headers=data->set.headers;
/* initialize a dynamic send-buffer */
req_buffer = add_buffer_init();
/* add the main request stuff */
add_bufferf(req_buffer,
"%s " /* GET/HEAD/POST/PUT */
"%s HTTP/%s\r\n" /* path */
"%s" /* proxyuserpwd */
"%s" /* userpwd */
"%s" /* range */
"%s" /* user agent */
"%s" /* cookie */
"%s" /* host */
"%s" /* pragma */
"%s" /* accept */
"%s", /* referer */
data->set.customrequest?data->set.customrequest:
(data->set.no_body?"HEAD":
((HTTPREQ_POST == data->set.httpreq) ||
(HTTPREQ_POST_FORM == data->set.httpreq))?"POST":
(HTTPREQ_PUT == data->set.httpreq)?"PUT":"GET"),
ppath, httpstring,
(conn->bits.proxy_user_passwd &&
conn->allocptr.proxyuserpwd)?conn->allocptr.proxyuserpwd:"",
(conn->bits.user_passwd && conn->allocptr.userpwd)?
conn->allocptr.userpwd:"",
(conn->bits.use_range && conn->allocptr.rangeline)?
conn->allocptr.rangeline:"",
(data->set.useragent && *data->set.useragent && conn->allocptr.uagent)?
conn->allocptr.uagent:"",
(conn->allocptr.cookie?conn->allocptr.cookie:""), /* Cookie: <data> */
(conn->allocptr.host?conn->allocptr.host:""), /* Host: host */
http->p_pragma?http->p_pragma:"",
http->p_accept?http->p_accept:"",
(data->change.referer && conn->allocptr.ref)?conn->allocptr.ref:"" /* Referer: <data> <CRLF> */
);
if(co) {
int count=0;
struct Cookie *store=co;
/* now loop through all cookies that matched */
while(co) {
if(co->value && strlen(co->value)) {
if(0 == count) {
add_bufferf(req_buffer, "Cookie: ");
}
add_bufferf(req_buffer,
"%s%s=%s", count?"; ":"", co->name, co->value);
count++;
}
co = co->next; /* next cookie please */
}
if(count) {
add_buffer(req_buffer, "\r\n", 2);
}
Curl_cookie_freelist(store); /* free the cookie list */
co=NULL;
}
if(data->set.timecondition) {
struct tm *thistime;
/* Phil Karn (Fri, 13 Apr 2001) pointed out that the If-Modified-Since
* header family should have their times set in GMT as RFC2616 defines:
* "All HTTP date/time stamps MUST be represented in Greenwich Mean Time
* (GMT), without exception. For the purposes of HTTP, GMT is exactly
* equal to UTC (Coordinated Universal Time)." (see page 20 of RFC2616).
*/
#ifdef HAVE_GMTIME_R
/* thread-safe version */
struct tm keeptime;
thistime = (struct tm *)gmtime_r(&data->set.timevalue, &keeptime);
#else
thistime = gmtime(&data->set.timevalue);
#endif
if(NULL == thistime) {
failf(data, "localtime() failed!");
return CURLE_OUT_OF_MEMORY;
}
#ifdef HAVE_STRFTIME
/* format: "Tue, 15 Nov 1994 12:45:26 GMT" */
strftime(buf, BUFSIZE-1, "%a, %d %b %Y %H:%M:%S GMT", thistime);
#else
/* TODO: Right, we *could* write a replacement here */
strcpy(buf, "no strftime() support");
#endif
switch(data->set.timecondition) {
case TIMECOND_IFMODSINCE:
default:
add_bufferf(req_buffer,
"If-Modified-Since: %s\r\n", buf);
break;
case TIMECOND_IFUNMODSINCE:
add_bufferf(req_buffer,
"If-Unmodified-Since: %s\r\n", buf);
break;
case TIMECOND_LASTMOD:
add_bufferf(req_buffer,
"Last-Modified: %s\r\n", buf);
break;
}
}
while(headers) {
char *ptr = strchr(headers->data, ':');
if(ptr) {
/* we require a colon for this to be a true header */
ptr++; /* pass the colon */
while(*ptr && isspace((int)*ptr))
ptr++;
if(*ptr) {
/* only send this if the contents was non-blank */
add_bufferf(req_buffer, "%s\r\n", headers->data);
}
}
headers = headers->next;
}
if(HTTPREQ_POST_FORM == data->set.httpreq) {
if(Curl_FormInit(&http->form, http->sendit)) {
failf(data, "Internal HTTP POST error!");
return CURLE_HTTP_POST_ERROR;
}
http->storefread = data->set.fread; /* backup */
http->in = data->set.in; /* backup */
data->set.fread = (curl_read_callback)
Curl_FormReader; /* set the read function to read from the
generated form data */
data->set.in = (FILE *)&http->form;
add_bufferf(req_buffer,
"Content-Length: %d\r\n", http->postsize);
if(!checkheaders(data, "Expect:")) {
/* if not disabled explicitly we add a Expect: 100-continue
to the headers which actually speeds up post operations (as
there is one packet coming back from the web server) */
add_bufferf(req_buffer,
"Expect: 100-continue\r\n");
data->set.expect100header = TRUE;
}
if(!checkheaders(data, "Content-Type:")) {
/* Get Content-Type: line from Curl_FormReadOneLine, which happens
to always be the first line. We can know this for sure since
we always build the formpost linked list the same way!
The Content-Type header line also contains the MIME boundary
string etc why disabling this header is likely to not make things
work, but we support it anyway.
*/
char contentType[256];
int linelength=0;
linelength = Curl_FormReadOneLine (contentType,
sizeof(contentType),
1,
(FILE *)&http->form);
if(linelength == -1) {
failf(data, "Could not get Content-Type header line!");
return CURLE_HTTP_POST_ERROR;
}
add_buffer(req_buffer, contentType, linelength);
}
/* make the request end in a true CRLF */
add_buffer(req_buffer, "\r\n", 2);
/* set upload size to the progress meter */
Curl_pgrsSetUploadSize(data, http->postsize);
/* fire away the whole request to the server */
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
&data->info.request_size);
if(result)
failf(data, "Failed sending POST request");
else
/* setup variables for the upcoming transfer */
result = Curl_Transfer(conn, conn->firstsocket, -1, TRUE,
&http->readbytecount,
conn->firstsocket,
&http->writebytecount);
if(result) {
Curl_formclean(http->sendit); /* free that whole lot */
return result;
}
}
else if(HTTPREQ_PUT == data->set.httpreq) {
/* Let's PUT the data to the server! */
if(data->set.infilesize>0) {
add_bufferf(req_buffer,
"Content-Length: %d\r\n\r\n", /* file size */
data->set.infilesize );
}
else
add_bufferf(req_buffer, "\015\012");
/* set the upload size to the progress meter */
Curl_pgrsSetUploadSize(data, data->set.infilesize);
/* this sends the buffer and frees all the buffer resources */
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
&data->info.request_size);
if(result)
failf(data, "Faied sending POST request");
else
/* prepare for transfer */
result = Curl_Transfer(conn, conn->firstsocket, -1, TRUE,
&http->readbytecount,
conn->firstsocket,
&http->writebytecount);
if(result)
return result;
}
else {
if(HTTPREQ_POST == data->set.httpreq) {
/* this is the simple POST, using x-www-form-urlencoded style */
if(!data->set.postfields) {
/*
* This is an attempt to do a POST without having anything to
* actually send. Let's make a NULL pointer equal "" here. Good/bad
* ?
*/
data->set.postfields = (char *)"";
data->set.postfieldsize = 0; /* it might been set to something illegal,
anything > 0 would be! */
}
if(!checkheaders(data, "Content-Length:"))
/* we allow replacing this header, although it isn't very wise to
actually set your own */
add_bufferf(req_buffer,
"Content-Length: %d\r\n",
(data->set.postfieldsize?data->set.postfieldsize:
strlen(data->set.postfields)) );
if(!checkheaders(data, "Content-Type:"))
add_bufferf(req_buffer,
"Content-Type: application/x-www-form-urlencoded\r\n");
/* and here comes the actual data */
if(data->set.postfieldsize) {
add_buffer(req_buffer, "\r\n", 2);
add_buffer(req_buffer, data->set.postfields,
data->set.postfieldsize);
}
else {
add_bufferf(req_buffer,
"\r\n"
"%s",
data->set.postfields );
}
}
else
add_buffer(req_buffer, "\r\n", 2);
/* issue the request */
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
&data->info.request_size);
if(result)
failf(data, "Failed sending HTTP request");
else
/* HTTP GET/HEAD download: */
result = Curl_Transfer(conn, conn->firstsocket, -1, TRUE, bytecount,
-1, NULL); /* nothing to upload */
}
if(result)
return result;
} while (0); /* this is just a left-over from the multiple document download
attempts */
return CURLE_OK;
}