Add "bounce" logic from "reset_password.js"

This should add support for https://pagure.io/freeipa/issue/4440

Fixes: https://pagure.io/freeipa/issue/7619
Reviewed-By: Petr Vobornik <pvoborni@redhat.com>
Reviewed-By: Serhii Tsymbaliuk <stsymbal@redhat.com>

install/ui/src/freeipa/widgets/LoginScreen.js

@@ -66,6 +66,8 @@ define(['dojo/_base/declare',
             "<strong>certificate</strong>, please make sure you have valid " +
             "personal certificate. ",
 
+        continue_msg: "Continue to next page",
+
         form_auth_failed: "Login failed due to an unknown reason",
 
         krb_auth_failed: "Authentication with Kerberos failed",
@@ -77,6 +79,8 @@ define(['dojo/_base/declare',
 
         password_change_complete: "Password change complete",
 
+        redirect_msg: "You will be redirected in ${count}s",
+
         krbprincipal_expired: "Kerberos Principal you entered is expired",
 
         invalid_password: "The password or username you entered is incorrect",
@@ -293,6 +297,69 @@ define(['dojo/_base/declare',
             }.bind(this));
         },
 
+        parse_uri: function() {
+            var opts = {};
+            if (window.location.search.length > 1) {
+                var couples = window.location.search.substr(1).split("&");
+                for (var i=0,l=couples.length; i < l; i++) {
+                    var couple = couples[i].split("=");
+                    var key = decodeURIComponent(couple[0]);
+                    var value = couple.length > 1 ? decodeURIComponent(couple[1]) : '';
+                    opts[key] = value;
+                }
+            }
+            return opts;
+        },
+
+        redir_count_down: function(redir_url, redir_delay) {
+            var val_summary = this.get_widget('validation');
+            val_summary.add_info('redirect',
+                this.redirect_msg.replace('${count}', Math.max(redir_delay, 0)));
+
+            if (redir_delay <= 0) {
+                window.location = redir_url;
+                return;
+            }
+            window.setTimeout(this.redir_count_down.bind(this), 1000,
+                redir_url, redir_delay-1);
+        },
+
+        /* If password reset was initiated due to a failed log in to some
+         * external application one could use a redirection to the desired URL
+         * after a successfull password reset.
+         *
+         * The next uri components are supported:
+         * - 'url' destination URL, which must be URI encoded
+         * - 'delay' time in seconds to delay before redirection
+         *
+         * For example,
+         * https://ipa.demo1.freeipa.org/ipa/ui/reset_password.html?url=http%3A%2F%2Fpvoborni.fedorapeople.org%2Fdoc%2F%23!%2Fguide%2FDebugging&delay=5
+        */
+        redirect: function() {
+            var opts = this.parse_uri();
+            var url = opts['url'];
+            var delay = parseInt(opts['delay'], 10);
+
+            var val_summary = this.get_widget('validation');
+            // button for manual redirection
+            if (url) {
+                val_summary.add_success(
+                    'login',
+                    "".concat(
+                        this.password_change_complete,
+                        ' <a href="', url, '">',
+                        this.continue_msg, '</a>'
+                    )
+                );
+            } else {
+                return;
+            }
+
+            if (delay <= 0 || delay > 0) { // NaN check
+                this.redir_count_down(url, delay);
+            }
+        },
+
         reset_password: function() {
 
             var psw_f = this.get_field('password');