Generate subscription/unsubscription confirmation emails
authorArt Cancro <ajc@citadel.org>
Tue, 16 Feb 2021 21:17:08 +0000 (16:17 -0500)
committerArt Cancro <ajc@citadel.org>
Tue, 16 Feb 2021 21:17:08 +0000 (16:17 -0500)
citadel/modules/listsub/serv_listsub.c

index 4b72e38..9cf3fb8 100644 (file)
@@ -48,6 +48,120 @@ enum {                              // one of these gets passed to do_subscribe_or_unsubscribe() so it kno
 };
 
 
+/*
+ * This generates an email with a link the user clicks to confirm a list subscription.
+ */
+void send_subscribe_confirmation_email(char *roomname, char *emailaddr, char *url, char *confirmation_token) {
+       // We need a URL-safe representation of the room name
+       char urlroom[ROOMNAMELEN+10];
+       urlesc(urlroom, sizeof(urlroom), roomname);
+
+       char from_address[1024];
+       snprintf(from_address, sizeof from_address, "noreply@%s", CtdlGetConfigStr("c_fqdn"));
+
+       char emailtext[SIZ];
+       snprintf(emailtext, sizeof emailtext,
+               "MIME-Version: 1.0\n"
+               "Content-Type: multipart/alternative; boundary=\"__ctdlmultipart__\"\n"
+               "\n"
+               "This is a multipart message in MIME format.\n"
+               "\n"
+               "--__ctdlmultipart__\n"
+               "Content-type: text/plain\n"
+               "\n"
+               "Someone (probably you) has submitted a request to subscribe\n"
+               "<%s> to the <%s> mailing list.\n"
+               "\n"
+               "Please go here to confirm this request:\n"
+               "%s?room=%s&token=%s&cmd=confirm\n"
+               "\n"
+               "If this request has been submitted in error and you do not\n"
+               "wish to receive the <%s> mailing list, simply do nothing,\n"
+               "and you will not receive any further mailings.\n"
+               "\n"
+               "--__ctdlmultipart__\n"
+               "Content-type: text/html\n"
+               "\n"
+               "<html><body><p>Someone (probably you) has submitted a request to subscribe "
+               "<strong>%s</strong> to the <strong>%s</strong> mailing list.</p>"
+               "<p>Please go here to confirm this request:</p>"
+               "<p><a href=\"%s?room=%s&token=%s&cmd=confirm\">"
+               "%s?room=%s&token=%s&cmd=confirm</a></p>"
+               "<p>If this request has been submitted in error and you do not "
+               "wish to receive the <strong>%s<strong> mailing list, simply do nothing, "
+               "and you will not receive any further mailings.</p>"
+               "</body></html>\n"
+               "\n"
+               "--__ctdlmultipart__--\n"
+               ,
+               emailaddr, roomname, url, urlroom, confirmation_token, roomname,
+               emailaddr, roomname,
+               url, urlroom, confirmation_token,
+               url, urlroom, confirmation_token,
+               roomname
+       );
+
+       quickie_message("Citadel", from_address, emailaddr, NULL, emailtext, FMT_RFC822, "Please confirm your list subscription");
+}
+
+
+/*
+ * This generates an email with a link the user clicks to confirm a list unsubscription.
+ */
+void send_unsubscribe_confirmation_email(char *roomname, char *emailaddr, char *url, char *confirmation_token) {
+       // We need a URL-safe representation of the room name
+       char urlroom[ROOMNAMELEN+10];
+       urlesc(urlroom, sizeof(urlroom), roomname);
+
+       char from_address[1024];
+       snprintf(from_address, sizeof from_address, "noreply@%s", CtdlGetConfigStr("c_fqdn"));
+
+       char emailtext[SIZ];
+       snprintf(emailtext, sizeof emailtext,
+               "MIME-Version: 1.0\n"
+               "Content-Type: multipart/alternative; boundary=\"__ctdlmultipart__\"\n"
+               "\n"
+               "This is a multipart message in MIME format.\n"
+               "\n"
+               "--__ctdlmultipart__\n"
+               "Content-type: text/plain\n"
+               "\n"
+               "Someone (probably you) has submitted a request to unsubscribe\n"
+               "<%s> from the <%s> mailing list.\n"
+               "\n"
+               "Please go here to confirm this request:\n"
+               "%s?room=%s&token=%s&cmd=confirm\n"
+               "\n"
+               "If this request has been submitted in error and you still\n"
+               "wish to receive the <%s> mailing list, simply do nothing,\n"
+               "and you will remain subscribed.\n"
+               "\n"
+               "--__ctdlmultipart__\n"
+               "Content-type: text/html\n"
+               "\n"
+               "<html><body><p>Someone (probably you) has submitted a request to unsubscribe "
+               "<strong>%s</strong> from the <strong>%s</strong> mailing list.</p>"
+               "<p>Please go here to confirm this request:</p>"
+               "<p><a href=\"%s?room=%s&token=%s&cmd=confirm\">"
+               "%s?room=%s&token=%s&cmd=confirm</a></p>"
+               "<p>If this request has been submitted in error and you still "
+               "wish to receive the <strong>%s<strong> mailing list, simply do nothing, "
+               "and you will remain subscribed.</p>"
+               "</body></html>\n"
+               "\n"
+               "--__ctdlmultipart__--\n"
+               ,
+               emailaddr, roomname, url, urlroom, confirmation_token, roomname,
+               emailaddr, roomname,
+               url, urlroom, confirmation_token,
+               url, urlroom, confirmation_token,
+               roomname
+       );
+
+       quickie_message("Citadel", from_address, emailaddr, NULL, emailtext, FMT_RFC822, "Please confirm your list subscription");
+}
+
+
 /*
  * "Subscribe" and "Unsubscribe" operations are so similar that they share a function.
  * The actual subscription doesn't take place here -- we just send out the confirmation request
@@ -59,10 +173,6 @@ void do_subscribe_or_unsubscribe(int action, char *emailaddr, char *url) {
        char buf[1024];
        char confirmation_token[40];
 
-       // We need a URL-safe representation of the room name
-       char urlroom[ROOMNAMELEN+10];
-       urlesc(urlroom, sizeof(urlroom), CC->room.QRname);
-
        // Update this room's netconfig with the updated lastsent
        begin_critical_section(S_NETCONFIGS);
         char *oldnetconfig = LoadRoomNetConfigFile(CC->room.QRnumber);
@@ -113,16 +223,12 @@ void do_subscribe_or_unsubscribe(int action, char *emailaddr, char *url) {
        if ((action == SUBSCRIBE) && (!is_already_subscribed)) {
                generate_uuid(confirmation_token);
                sprintf(&newnetconfig[strlen(newnetconfig)], "subpending|%s|%s|%ld|%s", emailaddr, confirmation_token, time(NULL), url);
-
-               // FIXME now generate the confirmation email
-               syslog(LOG_DEBUG, "%s?room=%s&token=%s&cmd=confirm", url, urlroom, confirmation_token);
+               send_subscribe_confirmation_email(CC->room.QRname, emailaddr, url, confirmation_token);
        }
        if ((action == UNSUBSCRIBE) && (is_already_subscribed)) {
                generate_uuid(confirmation_token);
                sprintf(&newnetconfig[strlen(newnetconfig)], "unsubpending|%s|%s|%ld|%s", emailaddr, confirmation_token, time(NULL), url);
-
-               // FIXME now generate the confirmation email
-               syslog(LOG_DEBUG, "%s?room=%s&token=%s&cmd=confirm", url, urlroom, confirmation_token);
+               send_unsubscribe_confirmation_email(CC->room.QRname, emailaddr, url, confirmation_token);
        }
 
        // Write the new netconfig back to disk