From 98d01eb19e5824b6fd457f8d0876447cc8c87583 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Thu, 11 Jul 2013 14:03:40 +0400
Subject: [PATCH] allow unsharing specific articles / creating new share key

---
 plugins/share/init.php | 28 +++++++++++++++++++-
 plugins/share/share.js | 59 +++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 85 insertions(+), 2 deletions(-)

diff --git a/plugins/share/init.php b/plugins/share/init.php
index 72a4d4bf9..a1b0146a1 100644
--- a/plugins/share/init.php
+++ b/plugins/share/init.php
@@ -18,6 +18,26 @@ class Share extends Plugin {
 		return file_get_contents(dirname(__FILE__) . "/share.js");
 	}
 
+	function unshare() {
+		$id = db_escape_string($_REQUEST['id']);
+
+		db_query("UPDATE ttrss_user_entries SET uuid = '' WHERE int_id = '$id'
+			AND owner_uid = " . $_SESSION['uid']);
+
+		print "OK";
+	}
+
+	function newkey() {
+		$id = db_escape_string($_REQUEST['id']);
+
+		$uuid = db_escape_string(sha1(uniqid(rand(), true)));
+
+		db_query("UPDATE ttrss_user_entries SET uuid = '$uuid' WHERE int_id = '$id'
+			AND owner_uid = " . $_SESSION['uid']);
+
+		print json_encode(array("link" => $uuid));
+	}
+
 	function hook_article_button($line) {
 		return "<img src=\"plugins/share/share.png\"
 			class='tagsPic' style=\"cursor : pointer\"
@@ -50,7 +70,7 @@ class Share extends Plugin {
 			$url_path .= "/public.php?op=share&key=$uuid";
 
 			print "<div class=\"tagCloudContainer\">";
-			print "<a id='pub_opml_url' href='$url_path' target='_blank'>$url_path</a>";
+			print "<a id='gen_article_url' href='$url_path' target='_blank'>$url_path</a>";
 			print "</div>";
 
 			/* if (!label_find_id(__('Shared'), $_SESSION["uid"]))
@@ -61,6 +81,12 @@ class Share extends Plugin {
 
 		print "<div align='center'>";
 
+		print "<button dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('shareArticleDlg').unshare()\">".
+			__('Unshare article')."</button>";
+
+		print "<button dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('shareArticleDlg').newurl()\">".
+			__('Generate new URL')."</button>";
+
 		print "<button dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('shareArticleDlg').hide()\">".
 			__('Close this window')."</button>";
 
diff --git a/plugins/share/share.js b/plugins/share/share.js
index 6752189ea..bbfb553d5 100644
--- a/plugins/share/share.js
+++ b/plugins/share/share.js
@@ -9,12 +9,69 @@ function shareArticle(id) {
 			id: "shareArticleDlg",
 			title: __("Share article by URL"),
 			style: "width: 600px",
+			newurl: function() {
+
+				var ok = confirm(__("Generate new share URL for this article?"));
+
+				if (ok) {
+
+					notify_progress("Trying to change URL...", true);
+
+					var query = "op=pluginhandler&plugin=share&method=newkey&id=" + param_escape(id);
+
+					new Ajax.Request("backend.php", {
+						parameters: query,
+						onComplete: function(transport) {
+								var reply = JSON.parse(transport.responseText);
+								var new_link = reply.link;
+
+								var e = $('gen_article_url');
+
+								if (new_link) {
+
+									e.innerHTML = e.innerHTML.replace(/\&amp;key=.*$/,
+										"&amp;key=" + new_link);
+
+									e.href = e.href.replace(/\&key=.*$/,
+										"&key=" + new_link);
+
+									new Effect.Highlight(e);
+
+									notify('');
+
+								} else {
+									notify_error("Could not change URL.");
+								}
+						} });
+
+				}
+
+			},
+			unshare: function() {
+
+				var ok = confirm(__("Remove sharing for this article?"));
+
+				if (ok) {
+
+					notify_progress("Trying to unshare...", true);
+
+					var query = "op=pluginhandler&plugin=share&method=unshare&id=" + param_escape(id);
+
+					new Ajax.Request("backend.php", {
+						parameters: query,
+						onComplete: function(transport) {
+							notify("Article unshared.");
+							dialog.hide();
+						} });
+				}
+
+			},
 			href: query});
 
 		dialog.show();
 
 	} catch (e) {
-		exception_error("emailArticle", e);
+		exception_error("shareArticle", e);
 	}
 }