HGKeeper

Implement SNI support for the gnutls SSL plugin.
release-2.x.y
2019-12-16, Mihai Moldovan

6dba8046e1b1

Implement SNI support for the gnutls SSL plugin.

Note that gnutls is picky in regard to what it accepts as the server name - it
MUST be a domain name. IP addresses are not supported according to the
documentation.

Hence, filter out IP addresses and hope that whatever is not recognized as
such an address is actually a domain name. This will probably fail for more
exotic addresses (especially in IPv6 realm), but wiring up a full-blown parser
is too much effort and SSL plugins are not part of purple-3 anyway.

Fixes #17300

/** @page notify-signals Notification Signals

@signals

@signal displaying-userinfo

@signal displaying-email-notification

@signal displaying-emails-notification

@endsignals

@see notify.h

@signaldef displaying-userinfo

@signalproto

void (*displaying_userinfo)(PurpleAccount *account, const char *who, PurpleNotifyUserInfo *user_info);

@endsignalproto

@signaldesc

Emitted before userinfo is handed to the UI to display.

@a user_info can be manipulated via the PurpleNotifyUserInfo API in notify.c.

@note

If adding a PurpleNotifyUserInfoEntry, be sure not to free it -- PurpleNotifyUserInfo assumes responsibility for its objects.

@param account The account on which the info was obtained.

@param who The name of the buddy whose info is to be displayed.

@param user_info The information to be displayed, as PurpleNotifyUserInfoEntry objects

@endsignaldef

@signaldef displaying-email-notification

@signalproto

void (*displaying_email_notification)(const char *subject,

const char *from,

const char *to,

const char *url);

@endsignalproto

@signaldesc

Emitted before notification of a single email is handed to the UI to display.

@param subject Subject of email being notified of.

@param from Who the email is from.

@param to Who the email is to.

@param url A url to view the email.

@since 2.1.0

@endsignaldef

@signaldef displaying-emails-notification

@signalproto

void (*displaying_emails_notification)(const char **subjects,

const char **froms,

const char **tos,

const char **urls,

guint count);

@endsignalproto

@signaldesc

Emitted before notification of multiple emails is handed to the UI to display.

@param subjects Subjects of emails being notified of.

@param froms Who the emails are from.

@param tos Who the emails are to.

@param urls The urls to view the emails.

@param count Number of emails being notified of.

@since 2.1.0

@endsignaldef

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