implement sharing articles by unique url

backend.php

@@ -59,7 +59,7 @@
 	}
 
 	if (!($_SESSION["uid"] && validate_session($link)) && $op != "globalUpdateFeeds" &&
-			$op != "rss" && $op != "getUnread" && $op != "getProfiles" &&
+			$op != "rss" && $op != "getUnread" && $op != "getProfiles" && $op != "share" &&
 			$op != "fbexport" && $op != "logout" && $op != "pubsub") {
 
 		if ($op == 'pref-feeds' && $_REQUEST['subop'] == 'add') {
@@ -633,6 +633,28 @@
 			}
 		break; // fbexport
 
+		case "share":
+			$uuid = db_escape_string($_REQUEST["key"]);
+
+			$result = db_query($link, "SELECT ref_id, owner_uid FROM ttrss_user_entries WHERE
+				uuid = '$uuid'");
+
+			if (db_num_rows($result) != 0) {
+				header("Content-Type: text/html");
+
+				$id = db_fetch_result($result, 0, "ref_id");
+				$owner_uid = db_fetch_result($result, 0, "owner_uid");
+
+				$article = format_article($link, $id, false, true);
+
+				print_r($article['content']);
+
+			} else {
+				print "Article not found.";
+			}
+
+			break;
+
 		default:
 			header("Content-Type: text/plain");
 			print json_encode(array("error" => array("code" => 7)));

functions.php

@@ -1275,9 +1275,9 @@
 						$result = db_query($link,
 							"INSERT INTO ttrss_user_entries
 								(ref_id, owner_uid, feed_id, unread, last_read, marked,
-									published, score, tag_cache, label_cache)
+									published, score, tag_cache, label_cache, uuid)
 							VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
-								$last_read_qpart, $marked, $published, '$score', '', '')");
+								$last_read_qpart, $marked, $published, '$score', '', '', '')");
 
 						if (PUBSUBHUBBUB_HUB && $published == 'true') {
 							$rss_link = get_self_url_prefix() .
@@ -4927,6 +4927,11 @@
 							alt='Zoom' title='".__('Share on Twitter')."'>";
 				}
 
+				$rv['content'] .= "<img src=\"".theme_image($link, 'images/art-share.png')."\"
+					class='tagsPic' style=\"cursor : pointer\"
+					onclick=\"shareArticle(".$line['int_id'].")\"
+					alt='Zoom' title='".__('Share by URL')."'>";
+
 				$rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
 						class='tagsPic' style=\"cursor : pointer\"
 						onclick=\"closeArticlePanel($id)\"

modules/backend-rpc.php

@@ -783,6 +783,15 @@
 			return;
 		}
 
+		// Silent
+		if ($subop == "clearArticleKeys") {
+			db_query($link, "UPDATE ttrss_user_entries SET uuid = '' WHERE
+				owner_uid = " . $_SESSION["uid"]);
+
+			return;
+		}
+
+
 		if ($subop == "verifyRegexp") {
 			$reg_exp = $_REQUEST["reg_exp"];
 

modules/popup-dialog.php

@@ -1071,12 +1071,52 @@
 					__('Cancel')."</button></div>";
 
 			return;
+		}
 
+		if ($id == "shareArticle") {
 
+			$result = db_query($link, "SELECT uuid, ref_id FROM ttrss_user_entries WHERE int_id = '$param'
+				AND owner_uid = " . $_SESSION['uid']);
 
+			if (db_num_rows($result) == 0) {
+				print "Article not found.";
+			} else {
 
+				$uuid = db_fetch_result($result, 0, "uuid");
+				$ref_id = db_fetch_result($result, 0, "ref_id");
+
+				if (!$uuid) {
+					$uuid = db_escape_string(sha1(uniqid(rand(), true)));
+					db_query($link, "UPDATE ttrss_user_entries SET uuid = '$uuid' WHERE int_id = '$param'
+						AND owner_uid = " . $_SESSION['uid']);
+				}
+
+				print __("You can share this article by the following unique URL:");
+
+				$url_path = get_self_url_prefix();
+				$url_path .= "/backend.php?op=share&key=$uuid";
+
+				print "<div class=\"tagCloudContainer\">";
+				print "<a id='pub_opml_url' href='$url_path' target='_blank'>$url_path</a>";
+				print "</div>";
+
+				/* if (!label_find_id($link, __('Shared'), $_SESSION["uid"]))
+					label_create($link, __('Shared'), $_SESSION["uid"]);
+
+				label_add_article($link, $ref_id, __('Shared'), $_SESSION['uid']); */
+			}
+
+			print "<div align='center'>";
+
+			print "<button dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('shareArticleDlg').hide()\">".
+				__('Close this window')."</button>";
+
+			print "</div>";
+
+			return;
 		}
 
 		print "</dlg>";
+
 	}
 ?>

modules/pref-feeds.php

@@ -1506,7 +1506,9 @@
 
 		print "</div>"; #pane
 
-		print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Published articles and generated feeds')."\">";
+		print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Published & shared articles and generated feeds')."\">";
+
+		print "<h3>" . __("Published articles and generated feeds") . "</h3>";
 
 		print "<p>".__('Published articles are exported as a public RSS feed and can be subscribed by anyone who knows the URL specified below.')."</p>";
 
@@ -1519,6 +1521,13 @@
 		print "<button dojoType=\"dijit.form.Button\" onclick=\"return clearFeedAccessKeys()\">".
 			__('Clear all generated URLs')."</button> ";
 
+		print "<h3>" . __("Articles shared by URL") . "</h3>";
+
+		print "<p>" . __("You can disable all articles shared by unique URLs here.") . "</p>";
+
+		print "<button dojoType=\"dijit.form.Button\" onclick=\"return clearArticleAccessKeys()\">".
+			__('Unshare all articles')."</button> ";
+
 		print "</div>"; #pane
 
 		if (defined('CONSUMER_KEY') && CONSUMER_KEY != '') {

prefs.js

@@ -1590,6 +1590,24 @@ function clearFeedAccessKeys() {
 	return false;
 }
 
+function clearArticleAccessKeys() {
+
+	var ok = confirm(__("This will invalidate all previously shared article URLs. Continue?"));
+
+	if (ok) {
+		notify_progress("Clearing URLs...");
+
+		var query = "?op=rpc&subop=clearArticleKeys";
+
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) {
+				notify_info("Shared URLs cleared.");
+			} });
+	}
+
+	return false;
+}
 function resetFeedOrder() {
 	try {
 		notify_progress("Loading, please wait...");

sanity_check.php

@@ -2,7 +2,7 @@
 	require_once "functions.php";
 
 	define('EXPECTED_CONFIG_VERSION', 23);
-	define('SCHEMA_VERSION', 85);
+	define('SCHEMA_VERSION', 86);
 
 	if (!file_exists("config.php")) {
 		print "<b>Fatal Error</b>: You forgot to copy

schema/ttrss_schema_mysql.sql

@@ -152,6 +152,7 @@ create index ttrss_entries_updated_idx on ttrss_entries(updated);
 create table ttrss_user_entries (
 	int_id integer not null primary key auto_increment,
 	ref_id integer not null,
+	uuid varchar(200) not null,
 	feed_id int,
 	orig_feed_id int,
 	owner_uid integer not null,
@@ -254,7 +255,7 @@ create table ttrss_tags (id integer primary key auto_increment,
 
 create table ttrss_version (schema_version int not null) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
 
-insert into ttrss_version values (85);
+insert into ttrss_version values (86);
 
 create table ttrss_enclosures (id integer primary key auto_increment,
 	content_url text not null,

schema/ttrss_schema_pgsql.sql

@@ -137,6 +137,7 @@ create index ttrss_entries_updated_idx on ttrss_entries(updated);
 create table ttrss_user_entries (
 	int_id serial not null primary key,
 	ref_id integer not null references ttrss_entries(id) ON DELETE CASCADE,
+	uuid varchar(200) not null,
 	feed_id int references ttrss_feeds(id) ON DELETE CASCADE,
 	orig_feed_id integer references ttrss_archived_feeds(id) ON DELETE SET NULL,
 	owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
@@ -225,7 +226,7 @@ create index ttrss_tags_post_int_id_idx on ttrss_tags(post_int_id);
 
 create table ttrss_version (schema_version int not null);
 
-insert into ttrss_version values (85);
+insert into ttrss_version values (86);
 
 create table ttrss_enclosures (id serial not null primary key,
 	content_url text not null,

tt-rss.css

@@ -1,4 +1,4 @@
-body#ttrssMain, body#ttrssPrefs, body#ttrssLogin {
+body#ttrssMain, body#ttrssPrefs, body#ttrssLogin, body {
 	background : white;
 	color : black;
 	margin : 0px;

viewfeed.js

@@ -2184,6 +2184,7 @@ function precache_headlines() {
 					feed_precache_timeout_id = false;
 					}, 3000);
 
+				x
 			}, 1000);
 		}
 
@@ -2191,3 +2192,25 @@ function precache_headlines() {
 		exception_error("precache_headlines", e);
 	}
 }
+
+function shareArticle(id) {
+	try {
+		if (dijit.byId("shareArticleDlg"))
+			dijit.byId("shareArticleDlg").destroyRecursive();
+
+		var query = "backend.php?op=dlg&id=shareArticle&param=" + param_escape(id);
+
+		dialog = new dijit.Dialog({
+			id: "shareArticleDlg",
+			title: __("Share article by URL"),
+			style: "width: 600px",
+			href: query});
+
+		dialog.show();
+
+	} catch (e) {
+		exception_error("emailArticle", e);
+	}
+}
+
+