implement experimental web-based updater

classes/pref/prefs.php

@@ -2,7 +2,7 @@
 class Pref_Prefs extends Handler_Protected {
 
 	function csrf_ignore($method) {
-		$csrf_ignored = array("index");
+		$csrf_ignored = array("index", "updateself");
 
 		return array_search($method, $csrf_ignored) !== false;
 	}
@@ -489,11 +489,60 @@ class Pref_Prefs extends Handler_Protected {
 
 		print '</div>'; # inner pane
 		print '</div>'; # border container
-
 		print "</form>";
 
 		print "</div>"; #pane
+
+
+		if (($_SESSION["access_level"] >= 10 || SINGLE_USER_MODE) && CHECK_FOR_NEW_VERSION) {
+			print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Update Tiny Tiny RSS')."\">";
+
+			if ($_SESSION["pref_last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
+				$_SESSION["version_data"] = @check_for_update($this->link);
+				$_SESSION["pref_last_version_check"] = time();
+			}
+
+			if (is_array($_SESSION["version_data"])) {
+				$version = $_SESSION["version_data"]["version"];
+				print_notice(T_sprintf("New version of Tiny Tiny RSS is available (%s).", "<b>$version</b>"));
+
+				print "<p><button dojoType=\"dijit.form.Button\" onclick=\"return updateSelf()\">".
+					__('Update Tiny Tiny RSS')."</button></p>";
+
+			} else {
+				print_notice(__("You are currently using latest version of Tiny Tiny RSS. Update not required."));
+			}
+
+			print "</div>"; #pane
+		}
+
 		print "</div>"; #container
 	}
+
+	function updateSelf() {
+		print "<form style='display : block' name='self_update_form' id='self_update_form'>";
+
+		print "<div class='error'>".__("Do not close this dialog until updating is finished. Backup your tt-rss directory before continuing.")."</div>";
+
+		print "<pre class='selfUpdateList' id='self_update_log'>";
+		print __("Ready to update.")."\n";
+		print "</pre>";
+
+		print "<div class='dlgButtons'>";
+		print "<button id=\"self_update_start_btn\" dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('updateSelfDlg').start()\" >".
+			__("Start update")."</button>";
+		print "<button onclick=\"return dijit.byId('updateSelfDlg').close()\" dojoType=\"dijit.form.Button\">".
+			__("Close this window")."</button>";
+		print "</div>";
+		print "</form>";
+	}
+
+	function performUpdate() {
+		if (($_SESSION["access_level"] >= 10 || SINGLE_USER_MODE) && CHECK_FOR_NEW_VERSION) {
+			include "update_self.php";
+			update_self($this->link, true);
+		}
+	}
+
 }
 ?>

include/functions.php

@@ -2147,6 +2147,7 @@
 				$data['new_version_available'] = (int) ($new_version_details != false);
 
 				$_SESSION["last_version_check"] = time();
+				$_SESSION["version_data"] = $new_version_details;
 		}
 
 		return $data;

js/prefs.js

@@ -2130,3 +2130,50 @@ function batchSubscribe() {
 	}
 }
 
+function updateSelf() {
+	try {
+		var query = "backend.php?op=pref-prefs&method=updateSelf";
+
+		if (dijit.byId("updateSelfDlg"))
+			dijit.byId("updateSelfDlg").destroyRecursive();
+
+		var dialog = new dijit.Dialog({
+			id: "updateSelfDlg",
+			title: __("Update Tiny Tiny RSS"),
+			style: "width: 600px",
+			closable: false,
+			performUpdate: function() {
+				dijit.byId("self_update_start_btn").attr("disabled", true);
+				notify_progress("Loading, please wait...", true);
+				new Ajax.Request("backend.php", {
+				parameters: "?op=pref-prefs&method=performUpdate",
+				onComplete: function(transport) {
+					try {
+						notify('');
+						$("self_update_log").innerHTML = transport.responseText;
+						dialog.attr("updated", true);
+					} catch (e) {
+						exception_error("updateSelf/inner", e);
+					}
+				} });
+			},
+			close: function() {
+				if (dialog.attr("updated")) {
+					window.location.reload();
+				} else {
+					dialog.hide();
+				}
+			},
+			start: function() {
+				if (prompt(__("Live updating is considered experimental. Backup your tt-rss directory before continuing. Please type 'yes' to continue.")) == 'yes') {
+					dialog.performUpdate();
+				}
+			},
+			href: query});
+
+		dialog.show();
+	} catch (e) {
+		exception_error("batchSubscribe", e);
+	}
+}
+

tt-rss.css

@@ -678,6 +678,17 @@ ul.feedErrorsList {
 	padding : 5px;
 }
 
+pre.selfUpdateList {
+	height : 200px;
+	font-size : 10px;
+	overflow : auto;
+	list-style-type : none;
+	border : 1px solid #c0c0c0;
+	background-color : #ecf4ff;
+	margin : 0px 0px 5px 0px;
+	padding : 5px;
+}
+
 ul.feedErrorsList em {
 	color : gray;
 }