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imap/smtp: Fixed incorrect SASL mechanism selection with XOAUTH2 servers

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XOAUTH2 would be selected in preference to LOGIN and PLAIN if the IMAP
or SMTP server advertised support for it even though a user's password
was supplied but bearer token wasn't.

Modified the selection logic so that XOAUTH2 will only be selected if
the server supports it and A) The curl user/libcurl programmer has
specifically asked for XOAUTH via the ;AUTH=XOAUTH login option or 2)
The bearer token is specified. Obviously if XOAUTH is asked for via
the login option but no token is specified the user will receive a
authentication failure which makes more sense than no known
authentication mechanisms supported!
This commit is contained in:
Steve Holme 2013-09-04 21:27:01 +01:00
parent 698e3bdf82
commit 9e8ced9890
2 changed files with 4 additions and 4 deletions
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4
lib/imap.c
View File

@ -579,9 +579,9 @@ static CURLcode imap_perform_authenticate(struct connectdata *conn)
}
else
#endif
if((imapc->authmechs & SASL_MECH_XOAUTH2) &&
(imapc->prefmech & SASL_MECH_XOAUTH2)) {
(imapc->prefmech & SASL_MECH_XOAUTH2) &&
(imapc->prefmech != SASL_AUTH_ANY) || conn->xoauth2_bearer) {
mech = "XOAUTH2";
state1 = IMAP_AUTHENTICATE_XOAUTH2;
state2 = IMAP_AUTHENTICATE_FINAL;

4
lib/smtp.c
View File

@ -500,9 +500,9 @@ static CURLcode smtp_perform_authenticate(struct connectdata *conn)
}
else
#endif
if((smtpc->authmechs & SASL_MECH_XOAUTH2) &&
(smtpc->prefmech & SASL_MECH_XOAUTH2)) {
(smtpc->prefmech & SASL_MECH_XOAUTH2) &&
(smtpc->prefmech != SASL_AUTH_ANY) || conn->xoauth2_bearer) {
mech = "XOAUTH2";
state1 = SMTP_AUTH_XOAUTH2;
state2 = SMTP_AUTH_FINAL;