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mod_sofia: fix bugzilla 6341 - dialplan not replacing user in contact string

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This commit is contained in:
Moises Silva 2011-02-28 16:36:28 -05:00
parent f3d8dc8ad3
commit 94e6bcfd2b
1 changed files with 93 additions and 91 deletions
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184
src/mod/endpoints/mod_sofia/mod_sofia.c
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@ -3552,97 +3552,6 @@ SWITCH_STANDARD_API(sofia_contact_function)
}
}
if (user_replacement) {
int urlcount = 0;
int copyerr = 0;
char *newreply = NULL;
char *urlstart = NULL;
char *newptr = NULL;
char *bufend = NULL;
char *str = reply;
switch_size_t copysize = 0;
switch_size_t replacesize = strlen(user_replacement);
switch_size_t allocsize = 0;
/* first pass to count how many URLs we have */
while ((urlstart = strcasestr(str, "sip:")) || (urlstart = strcasestr(str, "sips:"))) {
urlcount++;
str = urlstart + 4;
}
if (!urlcount) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): no sip URLs found to replace the user\n");
copyerr++;
goto copydone;
}
/* this allocates a bit more than needed but better safe than sorry doing more funky math */
allocsize = strlen(reply) + (urlcount * replacesize);
newreply = switch_core_session_alloc(session, allocsize);
if (!newreply) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): no buffer space available for replacement\n");
copyerr++;
goto copydone;
}
/* get a working pointer to the new reply */
newptr = newreply;
/* pointer to the end of the allocated buffer for safety checks */
bufend = newreply + allocsize;
*bufend = 0;
/* go thru all the urls and replace the user part */
str = reply;
while ((urlstart = strcasestr(str, "sip:")) || (urlstart = strcasestr(str, "sips:"))) {
/* found an URL, copy up to the start of the url */
copysize = ( urlstart - str ) + 4;
/* double check boundaries before copying anything at all (this should not happen) */
if ((newptr + copysize + replacesize) >= bufend) {
copyerr++;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): wow buffer was not big enough!\n");
break;
}
/* copy the original contact string except for the user */
memcpy(newptr, str, copysize);
newptr += copysize;
/* copy the user replacement */
memcpy(newptr, user_replacement, replacesize);
newptr += replacesize;
/* skip the original user part */
str = strchr(urlstart, '@');
if (!str) {
copyerr++;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): not host part found for contact\n");
break;
}
/* continue searching for the next sip: URL */
}
copydone:
if (!copyerr) {
/* copy the remaining reply string */
copysize = strlen(str);
if ((newptr + copysize) >= bufend) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): wow buffer was not big enough, close, but not enough!\n");
} else {
strcpy(newptr, str);
reply = newreply;
}
} else {
reply = "error/replacement error";
}
}
stream->write_function(stream, "%s", reply);
reply = NULL;
switch_safe_free(mystream.data);
}
switch_mutex_unlock(mod_sofia_globals.hash_mutex);
@ -3650,6 +3559,99 @@ copydone:
reply = (char *) mystream.data;
if (user_replacement) {
int urlcount = 0;
int copyerr = 0;
char *newreply = NULL;
char *urlstart = NULL;
char *newptr = NULL;
char *bufend = NULL;
char *str = reply;
switch_size_t copysize = 0;
switch_size_t replacesize = strlen(user_replacement);
switch_size_t allocsize = 0;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "sofia_contact(): trying to replace %s in %s\n",
user_replacement, str);
/* first pass to count how many URLs we have */
while ((urlstart = strcasestr(str, "sip:")) || (urlstart = strcasestr(str, "sips:"))) {
urlcount++;
str = urlstart + 4;
}
if (!urlcount) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): no sip URLs found to replace the user\n");
copyerr++;
goto copydone;
}
/* this allocates a bit more than needed but better safe than sorry doing more funky math */
allocsize = strlen(reply) + (urlcount * replacesize);
newreply = switch_core_session_alloc(session, allocsize);
if (!newreply) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): no buffer space available for replacement\n");
copyerr++;
goto copydone;
}
/* get a working pointer to the new reply */
newptr = newreply;
/* pointer to the end of the allocated buffer for safety checks */
bufend = newreply + allocsize;
*bufend = 0;
/* go thru all the urls and replace the user part */
str = reply;
while ((urlstart = strcasestr(str, "sip:")) || (urlstart = strcasestr(str, "sips:"))) {
/* found an URL, copy up to the start of the url */
copysize = ( urlstart - str ) + 4;
/* double check boundaries before copying anything at all (this should not happen) */
if ((newptr + copysize + replacesize) >= bufend) {
copyerr++;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): wow buffer was not big enough!\n");
break;
}
/* copy the original contact string except for the user */
memcpy(newptr, str, copysize);
newptr += copysize;
/* copy the user replacement */
memcpy(newptr, user_replacement, replacesize);
newptr += replacesize;
/* skip the original user part */
str = strchr(urlstart, '@');
if (!str) {
copyerr++;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): not host part found for contact\n");
break;
}
/* continue searching for the next sip: URL */
}
copydone:
if (!copyerr) {
/* copy the remaining reply string */
copysize = strlen(str);
if ((newptr + copysize) >= bufend) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "sofia_contact(): wow buffer was not big enough, close, but not enough!\n");
} else {
strcpy(newptr, str);
reply = newreply;
goto end;
}
} else {
/* on error, we do nothing and just default to the original stream returned (mystream.data) */
}
}
reply = (char *) mystream.data;
end:
if (zstr(reply)) {