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imap: Moved CAPABILITY response handling to imap_state_capability_resp()

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Introduced similar handling to the FETCH responses, where even the
untagged data responses are handled by the response handler of the
individual state.
This commit is contained in:
Jiri Hruska 2013-02-26 18:10:54 +01:00 committed by Steve Holme
parent 0ffefefe7f
commit 1ffdc5058e
1 changed files with 75 additions and 74 deletions
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149
lib/imap.c
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@ -323,16 +323,14 @@ static char* imap_atom(const char* str)
return newstr;
}
/* Function that checks for an ending IMAP status code at the start of the
given string but also detects various capabilities from the CAPABILITY
response including the supported authentication mechanisms. */
/* Function that checks whether the given string is a valid tagged, untagged
or continuation response which can be processed by the response handler. */
static bool imap_endofresp(struct connectdata *conn, char *line, size_t len,
int *resp)
{
struct imap_conn *imapc = &conn->proto.imapc;
const char *id = imapc->resptag;
size_t id_len = strlen(id);
size_t wordlen;
/* Do we have a tagged command response? */
if(len >= id_len + 1 && !memcmp(id, line, id_len) && line[id_len] == ' ') {
@ -355,77 +353,19 @@ static bool imap_endofresp(struct connectdata *conn, char *line, size_t len,
/* Do we have an untagged command response */
if(len >= 2 && !memcmp("* ", line, 2)) {
/* Are we processing CAPABILITY command data? */
if(imapc->state == IMAP_CAPABILITY) {
line += 2;
len -= 2;
/* Loop through the data line */
for(;;) {
while(len &&
(*line == ' ' || *line == '\t' ||
*line == '\r' || *line == '\n')) {
line++;
len--;
}
if(!len)
break;
/* Extract the word */
for(wordlen = 0; wordlen < len && line[wordlen] != ' ' &&
line[wordlen] != '\t' && line[wordlen] != '\r' &&
line[wordlen] != '\n';)
wordlen++;
/* Does the server support the STARTTLS capability? */
if(wordlen == 8 && !memcmp(line, "STARTTLS", 8))
imapc->tls_supported = TRUE;
/* Has the server explicitly disabled clear text authentication? */
else if(wordlen == 13 && !memcmp(line, "LOGINDISABLED", 13))
imapc->login_disabled = TRUE;
/* Does the server support the SASL-IR capability? */
else if(wordlen == 7 && !memcmp(line, "SASL-IR", 7))
imapc->ir_supported = TRUE;
/* Do we have a SASL based authentication mechanism? */
else if(wordlen > 5 && !memcmp(line, "AUTH=", 5)) {
line += 5;
len -= 5;
wordlen -= 5;
/* Test the word for a matching authentication mechanism */
if(wordlen == 5 && !memcmp(line, "LOGIN", 5))
imapc->authmechs |= SASL_MECH_LOGIN;
if(wordlen == 5 && !memcmp(line, "PLAIN", 5))
imapc->authmechs |= SASL_MECH_PLAIN;
else if(wordlen == 8 && !memcmp(line, "CRAM-MD5", 8))
imapc->authmechs |= SASL_MECH_CRAM_MD5;
else if(wordlen == 10 && !memcmp(line, "DIGEST-MD5", 10))
imapc->authmechs |= SASL_MECH_DIGEST_MD5;
else if(wordlen == 6 && !memcmp(line, "GSSAPI", 6))
imapc->authmechs |= SASL_MECH_GSSAPI;
else if(wordlen == 8 && !memcmp(line, "EXTERNAL", 8))
imapc->authmechs |= SASL_MECH_EXTERNAL;
else if(wordlen == 4 && !memcmp(line, "NTLM", 4))
imapc->authmechs |= SASL_MECH_NTLM;
}
line += wordlen;
len -= wordlen;
}
return FALSE;
switch(imapc->state) {
/* States which are interested in untagged responses */
case IMAP_CAPABILITY:
case IMAP_FETCH:
*resp = '*';
break;
/* Ignore other untagged responses */
default:
return FALSE;
}
/* Are we processing FETCH command responses? */
else if(imapc->state == IMAP_FETCH) {
*resp = '*';
return TRUE;
}
return TRUE;
}
/* Do we have a continuation response? */
@ -755,10 +695,71 @@ static CURLcode imap_state_capability_resp(struct connectdata *conn,
CURLcode result = CURLE_OK;
struct SessionHandle *data = conn->data;
struct imap_conn *imapc = &conn->proto.imapc;
const char *line = data->state.buffer;
size_t wordlen;
(void)instate; /* no use for this yet */
if(imapcode != 'O')
/* Do we have a untagged response? */
if(imapcode == '*') {
line += 2;
/* Loop through the data line */
for(;;) {
while(*line &&
(*line == ' ' || *line == '\t' ||
*line == '\r' || *line == '\n')) {
line++;
}
if(!*line)
break;
/* Extract the word */
for(wordlen = 0; line[wordlen] && line[wordlen] != ' ' &&
line[wordlen] != '\t' && line[wordlen] != '\r' &&
line[wordlen] != '\n';)
wordlen++;
/* Does the server support the STARTTLS capability? */
if(wordlen == 8 && !memcmp(line, "STARTTLS", 8))
imapc->tls_supported = TRUE;
/* Has the server explicitly disabled clear text authentication? */
else if(wordlen == 13 && !memcmp(line, "LOGINDISABLED", 13))
imapc->login_disabled = TRUE;
/* Does the server support the SASL-IR capability? */
else if(wordlen == 7 && !memcmp(line, "SASL-IR", 7))
imapc->ir_supported = TRUE;
/* Do we have a SASL based authentication mechanism? */
else if(wordlen > 5 && !memcmp(line, "AUTH=", 5)) {
line += 5;
wordlen -= 5;
/* Test the word for a matching authentication mechanism */
if(wordlen == 5 && !memcmp(line, "LOGIN", 5))
imapc->authmechs |= SASL_MECH_LOGIN;
if(wordlen == 5 && !memcmp(line, "PLAIN", 5))
imapc->authmechs |= SASL_MECH_PLAIN;
else if(wordlen == 8 && !memcmp(line, "CRAM-MD5", 8))
imapc->authmechs |= SASL_MECH_CRAM_MD5;
else if(wordlen == 10 && !memcmp(line, "DIGEST-MD5", 10))
imapc->authmechs |= SASL_MECH_DIGEST_MD5;
else if(wordlen == 6 && !memcmp(line, "GSSAPI", 6))
imapc->authmechs |= SASL_MECH_GSSAPI;
else if(wordlen == 8 && !memcmp(line, "EXTERNAL", 8))
imapc->authmechs |= SASL_MECH_EXTERNAL;
else if(wordlen == 4 && !memcmp(line, "NTLM", 4))
imapc->authmechs |= SASL_MECH_NTLM;
}
line += wordlen;
}
}
else if(imapcode != 'O')
result = imap_state_login(conn);
else if(data->set.use_ssl && !conn->ssl[FIRSTSOCKET].use) {
/* We don't have a SSL/TLS connection yet, but SSL is requested */