/*
* Connect to the server, login to the IMAP server, get it's capabilities, get
* the namespace of the mailboxes.
*/
int
request_login(const char *server, const char *port, const char *ssl,
const char *user, const char *pass)
{
int r = -1, rg = -1;
session *s;
if ((s = session_find(server, port, user)))
return STATUS_RESPONSE_NONE;
s = session_new();
s->server = xstrdup(server);
s->port = xstrdup(port);
s->username = xstrdup(user);
if (ssl && strncasecmp(ssl, "tls1", 4) &&
strncasecmp(ssl, "ssl3", 4) && strncasecmp(ssl, "ssl2", 4))
ssl = NULL;
if (open_connection(s, server, port, ssl) == -1)
goto fail;
if ((rg = response_greeting(s)) == -1)
goto fail;
if (opts.debug)
if (response_generic(s, imap_noop(s)) == -1)
goto fail;
if (response_capability(s, imap_capability(s)) == -1)
goto fail;
#ifndef NO_SSLTLS
if (!ssl && s->capabilities & CAPABILITY_STARTTLS &&
get_option_boolean("starttls"))
switch (response_generic(s, imap_starttls(s))) {
case STATUS_RESPONSE_OK:
if (open_secure_connection(s, server, port, "tls1")
== -1)
goto fail;
if (response_capability(s, imap_capability(s)) == -1)
goto fail;
break;
case -1:
goto fail;
break;
}
#endif
if (rg != STATUS_RESPONSE_PREAUTH) {
#ifndef NO_CRAMMD5
if (s->capabilities & CAPABILITY_CRAMMD5 &&
get_option_boolean("crammd5")) {
if ((r = auth_cram_md5(s, user, pass)) == -1)
goto fail;
}
#endif
if (r != STATUS_RESPONSE_OK &&
(r = response_generic(s, imap_login(s, user, pass))) == -1)
goto fail;
if (r == STATUS_RESPONSE_NO) {
error("username %s or password rejected at %s\n",
user, server);
goto fail;
}
} else {
r = STATUS_RESPONSE_PREAUTH;
}
if (response_capability(s, imap_capability(s)) == -1)
goto fail;
if (s->capabilities & CAPABILITY_NAMESPACE &&
get_option_boolean("namespace")) {
if (response_namespace(s, imap_namespace(s)) == -1)
goto fail;
}
return r;
fail:
close_connection(s);
session_destroy(s);
return -1;
}
/*
* Connect to the server, login to the IMAP server, get it's capabilities, get
* the namespace of the mailboxes.
*/
int
request_login(session **ssnptr, const char *server, const char *port, const
char *ssl, const char *user, const char *pass)
{
int t, r, rg = -1, rl = -1;
session *ssn = *ssnptr;
if (*ssnptr && (*ssnptr)->socket != -1)
return STATUS_PREAUTH;
if (!*ssnptr) {
ssn = *ssnptr = session_new();
ssn->server = server;
ssn->port = port;
ssn->username = user;
ssn->password = pass;
if (strlen(ssl) != 0)
ssn->sslproto = ssl;
} else {
debug("recovering connection: %s://%s@%s:%s/%s\n",
ssn->sslproto ?"imaps" : "imap", ssn->username, ssn->server,
ssn->port, ssn->selected ? ssn->selected : "");
}
if (open_connection(ssn) == -1)
goto fail;
CHECK(rg = response_greeting(ssn));
if (opts.debug) {
CHECK(t = send_request(ssn, "NOOP"));
CHECK(response_generic(ssn, t));
}
CHECK(t = send_request(ssn, "CAPABILITY"));
CHECK(response_capability(ssn, t));
if (!ssn->sslproto && ssn->capabilities & CAPABILITY_STARTTLS &&
get_option_boolean("starttls")) {
CHECK(t = send_request(ssn, "STARTTLS"));
CHECK(r = response_generic(ssn, t));
if (r == STATUS_OK) {
if (open_secure_connection(ssn) == -1)
goto fail;
CHECK(t = send_request(ssn, "CAPABILITY"));
CHECK(response_capability(ssn, t));
}
}
if (rg != STATUS_PREAUTH) {
if (ssn->capabilities & CAPABILITY_CRAMMD5 &&
get_option_boolean("crammd5")) {
unsigned char *in, *out;
CHECK(t = send_request(ssn, "AUTHENTICATE CRAM-MD5"));
CHECK(r = response_authenticate(ssn, t, &in));
if (r == STATUS_CONTINUE) {
if ((out = auth_cram_md5(ssn->username,
ssn->password, in)) == NULL)
goto abort;
CHECK(send_continuation(ssn, (char *)(out),
strlen((char *)(out))));
xfree(out);
CHECK(rl = response_generic(ssn, t));
} else
goto abort;
}
if (rl != STATUS_OK) {
CHECK(t = send_request(ssn, "LOGIN \"%s\" \"%s\"",
ssn->username, ssn->password));
CHECK(rl = response_generic(ssn, t));
}
if (rl == STATUS_NO) {
error("username %s or password rejected at %s\n",
ssn->username, ssn->server);
close_connection(ssn);
session_destroy(ssn);
return STATUS_NO;
}
} else {
rl = STATUS_PREAUTH;
}
CHECK(t = send_request(ssn, "CAPABILITY"));
CHECK(response_capability(ssn, t));
if (ssn->capabilities & CAPABILITY_NAMESPACE &&
get_option_boolean("namespace")) {
CHECK(t = send_request(ssn, "NAMESPACE"));
CHECK(response_namespace(ssn, t));
}
if (ssn->selected) {
CHECK(t = send_request(ssn, "SELECT \"%s\"",
apply_namespace(ssn->selected, ssn->ns.prefix,
ssn->ns.delim)));
CHECK(response_select(ssn, t));
}
return rl;
abort:
close_connection(ssn);
fail:
session_destroy(ssn);
return -1;
}