[tt-rss.git] / classes / feeds.php

<?php
require_once "colors.php";

class Feeds extends Handler_Protected {

	function csrf_ignore($method) {
		$csrf_ignored = array("index", "feedbrowser", "quickaddfeed", "search");

		return array_search($method, $csrf_ignored) !== false;
	}

	private function format_headline_subtoolbar($feed_site_url, $feed_title,
			$feed_id, $is_cat, $search,
			$search_mode, $view_mode, $error, $feed_last_updated) {

		$page_prev_link = "viewFeedGoPage(-1)";
		$page_next_link = "viewFeedGoPage(1)";
		$page_first_link = "viewFeedGoPage(0)";

		$catchup_page_link = "catchupPage()";
		$catchup_feed_link = "catchupCurrentFeed()";
		$catchup_sel_link = "catchupSelection()";

		$archive_sel_link = "archiveSelection()";
		$delete_sel_link = "deleteSelection()";

		$sel_all_link = "selectArticles('all')";
		$sel_unread_link = "selectArticles('unread')";
		$sel_none_link = "selectArticles('none')";
		$sel_inv_link = "selectArticles('invert')";

		$tog_unread_link = "selectionToggleUnread()";
		$tog_marked_link = "selectionToggleMarked()";
		$tog_published_link = "selectionTogglePublished()";

		$set_score_link = "setSelectionScore()";

		if ($is_cat) $cat_q = "&is_cat=$is_cat";

		if ($search) {
			$search_q = "&q=$search&smode=$search_mode";
		} else {
			$search_q = "";
		}

		$rss_link = htmlspecialchars(get_self_url_prefix() .
			"/public.php?op=rss&id=$feed_id$cat_q$search_q");

		// right part

		$reply .= "<span class='r'>";
		$reply .= "<span id='selected_prompt'></span>";
		$reply .= "<span id='feed_title'>";

		if ($feed_site_url) {
			$last_updated = T_sprintf("Last updated: %s",
				$feed_last_updated);

			$target = "target=\"_blank\"";
			$reply .= "<a title=\"$last_updated\" $target href=\"$feed_site_url\">".
				truncate_string($feed_title,30)."</a>";

			if ($error) {
				$reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
			}

		} else {
			$reply .= $feed_title;
		}

		$reply .= "</span>";

		$reply .= "
			<a href=\"#\"
				title=\"".__("View as RSS feed")."\"
				onclick=\"displayDlg('".__("View as RSS")."','generatedFeed', '$feed_id:$is_cat:$rss_link')\">
				<img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/pub_set.png\"></a>";

		$reply .= "</span>";

		// left part

		$reply .= __('Select:')."
			<a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
			<a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
			<a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
			<a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";

		$reply .= " ";

		$reply .= "<select dojoType=\"dijit.form.Select\"
			onchange=\"headlineActionsChange(this)\">";
		$reply .= "<option value=\"false\">".__('More...')."</option>";

		$reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";

		$reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
			<option value=\"$tog_marked_link\">".__('Starred')."</option>
			<option value=\"$tog_published_link\">".__('Published')."</option>";

		$reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";

		$reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
		$reply .= "<option value=\"$set_score_link\">".__('Set score')."</option>";

		if ($feed_id != "0") {
			$reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
		} else {
			$reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
			$reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";

		}

		if (PluginHost::getInstance()->get_plugin("mail")) {
			$reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
				"</option>";
		}

		if (PluginHost::getInstance()->get_plugin("mailto")) {
			$reply .= "<option value=\"mailtoArticle(false)\">".__('Forward by email').
				"</option>";
		}

		$reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";

		//$reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";

		$reply .= "<option value=\"displayDlg('".__("View as RSS")."','generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";

		$reply .= "</select>";

		//$reply .= "</div>";

		//$reply .= "</h2";

		foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_HEADLINE_TOOLBAR_BUTTON) as $p) {
			 echo $p->hook_headline_toolbar_button($feed_id, $is_cat);
		}

		return $reply;
	}

	private function format_headlines_list($feed, $method, $view_mode, $limit, $cat_view,
					$next_unread_feed, $offset, $vgr_last_feed = false,
					$override_order = false, $include_children = false) {

		if (isset($_REQUEST["DevForceUpdate"]))
			header("Content-Type: text/plain");

		$disable_cache = false;

		$reply = array();

		$rgba_cache = array();

		$timing_info = microtime(true);

		$topmost_article_ids = array();

		if (!$offset) $offset = 0;
		if ($method == "undefined") $method = "";

		$method_split = explode(":", $method);

		if ($method == "ForceUpdate" && $feed > 0 && is_numeric($feed)) {
			// Update the feed if required with some basic flood control

			$result = $this->dbh->query(
				"SELECT cache_images,".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
					FROM ttrss_feeds WHERE id = '$feed'");

				if ($this->dbh->num_rows($result) != 0) {
					$last_updated = strtotime($this->dbh->fetch_result($result, 0, "last_updated"));
					$cache_images = sql_bool_to_bool($this->dbh->fetch_result($result, 0, "cache_images"));

					if (!$cache_images && time() - $last_updated > 120 || isset($_REQUEST['DevForceUpdate'])) {
						include "rssfuncs.php";
						update_rss_feed($feed, true, true);
					} else {
						$this->dbh->query("UPDATE ttrss_feeds SET last_updated = '1970-01-01', last_update_started = '1970-01-01'
							WHERE id = '$feed'");
					}
				}
		}

		if ($method_split[0] == "MarkAllReadGR")  {
			catchup_feed($method_split[1], false);
		}

		// FIXME: might break tag display?

		if (is_numeric($feed) && $feed > 0 && !$cat_view) {
			$result = $this->dbh->query(
				"SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");

			if ($this->dbh->num_rows($result) == 0) {
				$reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
			}
		}

		@$search = $this->dbh->escape_string($_REQUEST["query"]);

		if ($search) {
			$disable_cache = true;
		}

		@$search_mode = $this->dbh->escape_string($_REQUEST["search_mode"]);

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);

//		error_log("format_headlines_list: [" . $feed . "] method [" . $method . "]");
		if($search_mode == '' && $method != '' ){
		    $search_mode = $method;
		}
//		error_log("search_mode: " . $search_mode);

		if (!$cat_view && is_numeric($feed) && $feed < PLUGIN_FEED_BASE_INDEX && $feed > LABEL_BASE_INDEX) {
			$handler = PluginHost::getInstance()->get_feed_handler(
				PluginHost::feed_to_pfeed_id($feed));

		//	function queryFeedHeadlines($feed, $limit, $view_mode, $cat_view, $search, $search_mode, $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false, $ignore_vfeed_group = false) {

			if ($handler) {
				$options = array(
					"limit" => $limit,
					"view_mode" => $view_mode,
					"cat_view" => $cat_view,
					"search" => $search,
					"search_mode" => $search_mode,
					"override_order" => $override_order,
					"offset" => $offset,
					"owner_uid" => $_SESSION["uid"],
					"filter" => false,
					"since_id" => 0,
					"include_children" => $include_children);

				$qfh_ret = $handler->get_headlines(PluginHost::feed_to_pfeed_id($feed),
					$options);
			}

		} else {
			$qfh_ret = queryFeedHeadlines($feed, $limit, $view_mode, $cat_view,
				$search, $search_mode, $override_order, $offset, 0,
				false, 0, $include_children);
		}

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);

		$result = $qfh_ret[0];
		$feed_title = $qfh_ret[1];
		$feed_site_url = $qfh_ret[2];
		$last_error = $qfh_ret[3];
		$last_updated = strpos($qfh_ret[4], '1970-') === FALSE ?
			make_local_datetime($qfh_ret[4], false) : __("Never");

		$vgroup_last_feed = $vgr_last_feed;

		$reply['toolbar'] = $this->format_headline_subtoolbar($feed_site_url,
			$feed_title,
			$feed, $cat_view, $search, $search_mode, $view_mode,
			$last_error, $last_updated);

		$headlines_count = $this->dbh->num_rows($result);

		/* if (get_pref('COMBINED_DISPLAY_MODE')) {
			$button_plugins = array();
			foreach (explode(",", ARTICLE_BUTTON_PLUGINS) as $p) {
				$pclass = "button_" . trim($p);

				if (class_exists($pclass)) {
					$plugin = new $pclass();
					array_push($button_plugins, $plugin);
				}
			}
		} */

		if ($this->dbh->num_rows($result) > 0) {

			$lnum = $offset;

			$num_unread = 0;
			$cur_feed_title = '';

			$fresh_intl = get_pref("FRESH_ARTICLE_MAX_AGE") * 60 * 60;

			if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PS", $timing_info);

			$expand_cdm = get_pref('CDM_EXPANDED');
				
			while ($line = $this->dbh->fetch_assoc($result)) {
				$line["content_preview"] =  "&mdash; " . truncate_string(strip_tags($line["content_preview"]),250);
				foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_QUERY_HEADLINES) as $p) {
					$line = $p->hook_query_headlines($line, 250, false);
				}
				$id = $line["id"];
				$feed_id = $line["feed_id"];
				$label_cache = $line["label_cache"];
				$labels = false;

				if ($label_cache) {
					$label_cache = json_decode($label_cache, true);

					if ($label_cache) {
						if ($label_cache["no-labels"] == 1)
							$labels = array();
						else
							$labels = $label_cache;
					}
				}

				if (!is_array($labels)) $labels = get_article_labels($id);

				$labels_str = "<span id=\"HLLCTR-$id\">";
				$labels_str .= format_article_labels($labels, $id);
				$labels_str .= "</span>";

				if (count($topmost_article_ids) < 3) {
					array_push($topmost_article_ids, $id);
				}

				$class = "";

				if (sql_bool_to_bool($line["unread"])) {
					$class .= " Unread";
					++$num_unread;
				}

				if (sql_bool_to_bool($line["marked"])) {
					$marked_pic = "<img
						src=\"images/mark_set.png\"
						class=\"markedPic\" alt=\"Unstar article\"
						onclick='toggleMark($id)'>";
					$class .= " marked";
				} else {
					$marked_pic = "<img
						src=\"images/mark_unset.png\"
						class=\"markedPic\" alt=\"Star article\"
						onclick='toggleMark($id)'>";
				}

				if (sql_bool_to_bool($line["published"])) {
					$published_pic = "<img src=\"images/pub_set.png\"
						class=\"pubPic\"
							alt=\"Unpublish article\" onclick='togglePub($id)'>";
					$class .= " published";
				} else {
					$published_pic = "<img src=\"images/pub_unset.png\"
						class=\"pubPic\"
						alt=\"Publish article\" onclick='togglePub($id)'>";
				}

#				$content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
#					$line["title"] . "</a>";

#				$content_link = "<a
#					href=\"" . htmlspecialchars($line["link"]) . "\"
#					onclick=\"view($id,$feed_id);\">" .
#					$line["title"] . "</a>";

#				$content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
#					$line["title"] . "</a>";

				$updated_fmt = make_local_datetime($line["updated"], false);
				$date_entered_fmt = T_sprintf("Imported at %s",
					make_local_datetime($line["date_entered"], false));

				if (get_pref('SHOW_CONTENT_PREVIEW') ) {
						$content_preview =  $line["content_preview"];	
				}

				$score = $line["score"];

				$score_pic = "images/" . get_score_pic($score);

/*				$score_title = __("(Click to change)");
				$score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
					onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */

				$score_pic = "<img class='hlScorePic' score='$score' onclick='changeScore($id, this)' src=\"$score_pic\"
					title=\"$score\">";

				if ($score > 500) {
					$hlc_suffix = "high";
				} else if ($score < -100) {
					$hlc_suffix = "low";
				} else {
					$hlc_suffix = "";
				}

				$entry_author = $line["author"];

				if ($entry_author) {
					$entry_author = " &mdash; $entry_author";
				}

				$has_feed_icon = feed_has_icon($feed_id);

				if ($has_feed_icon) {
					$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
				} else {
					$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/pub_set.png\" alt=\"\">";
				}

				$entry_site_url = $line["site_url"];

				//setting feed headline background color, needs to change text color based on dark/light
				$fav_color = $line['favicon_avg_color'];

				require_once "colors.php";

				if ($fav_color && $fav_color != 'fail') {
					if (!isset($rgba_cache[$feed_id])) {
						$rgba_cache[$feed_id] = join(",", _color_unpack($fav_color));
					}
				}

				if (!get_pref('COMBINED_DISPLAY_MODE')) {

					if (get_pref('VFEED_GROUP_BY_FEED')) {
						if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {

							$cur_feed_title = $line["feed_title"];
							$vgroup_last_feed = $feed_id;

							$cur_feed_title = htmlspecialchars($cur_feed_title);

							$vf_catchup_link = "(<a class='catchup' onclick='catchupFeedInGroup($feed_id);' href='#'>".__('Mark as read')."</a>)";

							$reply['content'] .= "<div class='cdmFeedTitle'>".
								"<div style=\"float : right\">$feed_icon_img</div>".
								"<a class='title' href=\"#\" onclick=\"viewfeed($feed_id)\">".
								$line["feed_title"]."</a> $vf_catchup_link</div>";

						}
					}

					$mouseover_attrs = "onmouseover='postMouseIn(event, $id)'
						onmouseout='postMouseOut($id)'";

					$reply['content'] .= "<div class='hl $class' id='RROW-$id' $mouseover_attrs>";

					$reply['content'] .= "<div class='hlLeft'>";

					$reply['content'] .= "<input dojoType=\"dijit.form.CheckBox\"
							type=\"checkbox\" onclick=\"toggleSelectRow2(this)\"
							class='rchk'>";

					$reply['content'] .= "$marked_pic";
					$reply['content'] .= "$published_pic";

					$reply['content'] .= "</div>";

					$reply['content'] .= "<div onclick='return hlClicked(event, $id)'
						class=\"hlTitle\"><span class='hlContent $hlc_suffix'>";
					$reply['content'] .= "<a id=\"RTITLE-$id\" class=\"title $hlc_suffix\"
						href=\"" . htmlspecialchars($line["link"]) . "\"
						onclick=\"\">" .
						truncate_string($line["title"], 200);

					if (get_pref('SHOW_CONTENT_PREVIEW')) {
							$reply['content'] .= "<span class=\"contentPreview\">" . $line["content_preview"] . "</span>";
					}

					$reply['content'] .= "</a></span>";

					$reply['content'] .= $labels_str;

					$reply['content'] .= "</div>";

					$reply['content'] .= "<span class=\"hlUpdated\">";

					if (!get_pref('VFEED_GROUP_BY_FEED')) {
						if (@$line["feed_title"]) {
							$rgba = @$rgba_cache[$feed_id];

							$reply['content'] .= "<a class=\"hlFeed\" style=\"background : rgba($rgba, 0.3)\" href=\"#\" onclick=\"viewfeed($feed_id)\">".
								truncate_string($line["feed_title"],30)."</a>";
						}
					}

					$reply['content'] .= "<div title='$date_entered_fmt'>$updated_fmt</div>
						</span>";

					$reply['content'] .= "<div class=\"hlRight\">";

					$reply['content'] .= $score_pic;

					if ($line["feed_title"] && !get_pref('VFEED_GROUP_BY_FEED')) {

						$reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
							style=\"cursor : pointer\"
							title=\"".htmlspecialchars($line['feed_title'])."\">
							$feed_icon_img<span>";
					}

					$reply['content'] .= "</div>";
					$reply['content'] .= "</div>";

				} else {

					if ($line["tag_cache"])
						$tags = explode(",", $line["tag_cache"]);
					else
						$tags = false;

					$line["content"] = sanitize($line["content"],
							sql_bool_to_bool($line['hide_images']), false, $entry_site_url);

					foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE_CDM) as $p) {
						$line = $p->hook_render_article_cdm($line);
					}

					if (get_pref('VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
						if ($feed_id != $vgroup_last_feed) {

							$cur_feed_title = $line["feed_title"];
							$vgroup_last_feed = $feed_id;

							$cur_feed_title = htmlspecialchars($cur_feed_title);

							$vf_catchup_link = "(<a class='catchup' onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";

							$has_feed_icon = feed_has_icon($feed_id);

							if ($has_feed_icon) {
								$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
							} else {
								//$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
							}

							$reply['content'] .= "<div class='cdmFeedTitle'>".
								"<div style=\"float : right\">$feed_icon_img</div>".
								"<a href=\"#\" class='title' onclick=\"viewfeed($feed_id)\">".
								$line["feed_title"]."</a> $vf_catchup_link</div>";
						}
					}

					$mouseover_attrs = "onmouseover='postMouseIn(event, $id)'
						onmouseout='postMouseOut($id)'";

					$expanded_class = $expand_cdm ? "expanded" : "expandable";

					$reply['content'] .= "<div class=\"cdm $hlc_suffix $expanded_class $class\"
						id=\"RROW-$id\" $mouseover_attrs>";

					$reply['content'] .= "<div class=\"cdmHeader\" style=\"$row_background\">";
					$reply['content'] .= "<div style=\"vertical-align : middle\">";

					$reply['content'] .= "<input dojoType=\"dijit.form.CheckBox\"
							type=\"checkbox\" onclick=\"toggleSelectRow2(this, false, true)\"
							class='rchk'>";

					$reply['content'] .= "$marked_pic";
					$reply['content'] .= "$published_pic";

					$reply['content'] .= "</div>";

					$reply['content'] .= "<span id=\"RTITLE-$id\"
						onclick=\"return cdmClicked(event, $id);\"
						class=\"titleWrap $hlc_suffix\">
						<a class=\"title $hlc_suffix\"
						target=\"_blank\" href=\"".
						htmlspecialchars($line["link"])."\">".
						$line["title"] .
						"</a> <span class=\"author\">$entry_author</span>";

					$reply['content'] .= $labels_str;

					$reply['content'] .= "<span class='collapseBtn' style='display : none'>
						<img src=\"images/collapse.png\" onclick=\"cdmCollapseArticle(event, $id)\"
						title=\"".__("Collapse article")."\"/></span>";

					if (!$expand_cdm)
						$content_hidden = "style=\"display : none\"";
					else
						$excerpt_hidden = "style=\"display : none\"";

					$reply['content'] .= "<span $excerpt_hidden id=\"CEXC-$id\" class=\"cdmExcerpt\">" . $line["content_preview"] . "</span>";

					$reply['content'] .= "</span>";

					if (!get_pref('VFEED_GROUP_BY_FEED')) {
						if (@$line["feed_title"]) {
							$rgba = @$rgba_cache[$feed_id];

							$reply['content'] .= "<div class=\"hlFeed\">
								<a href=\"#\" style=\"background-color: rgba($rgba,0.3)\"
								onclick=\"viewfeed($feed_id)\">".
								truncate_string($line["feed_title"],30)."</a>
							</div>";
						}
					}

					$reply['content'] .= "<span class='updated' title='$date_entered_fmt'>
						$updated_fmt</span>";

					$reply['content'] .= "<div class='scoreWrap' style=\"vertical-align : middle\">";
					$reply['content'] .= "$score_pic";

					if (!get_pref("VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
						$reply['content'] .= "<span style=\"cursor : pointer\"
							title=\"".htmlspecialchars($line["feed_title"])."\"
							onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
					}
					$reply['content'] .= "</div>";

					$reply['content'] .= "</div>";

					$reply['content'] .= "<div class=\"cdmContent\" $content_hidden
						onclick=\"return cdmClicked(event, $id);\"
						id=\"CICD-$id\">";

					$reply['content'] .= "<div id=\"POSTNOTE-$id\">";
					if ($line['note']) {
						$reply['content'] .= format_article_note($id, $line['note']);
					}
					$reply['content'] .= "</div>";

					$reply['content'] .= "<div class=\"cdmContentInner\">";

			if ($line["orig_feed_id"]) {

				$tmp_result = $this->dbh->query("SELECT * FROM ttrss_archived_feeds
					WHERE id = ".$line["orig_feed_id"]);

						if ($this->dbh->num_rows($tmp_result) != 0) {

							$reply['content'] .= "<div clear='both'>";
							$reply['content'] .= __("Originally from:");

							$reply['content'] .= "&nbsp;";

							$tmp_line = $this->dbh->fetch_assoc($tmp_result);

							$reply['content'] .= "<a target='_blank'
								href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
								$tmp_line['title'] . "</a>";

							$reply['content'] .= "&nbsp;";

							$reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
							$reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_unset.png'></a>";

							$reply['content'] .= "</div>";
						}
					}

					$reply['content'] .= "<span id=\"CWRAP-$id\">";

//					if (!$expand_cdm) {
						$reply['content'] .= "<span id=\"CENCW-$id\" style=\"display : none\">";
						$reply['content'] .= htmlspecialchars($line["content"]);
						$reply['content'] .= "</span.";

//					} else {
//						$reply['content'] .= $line["content"];
//					}

					$reply['content'] .= "</span>";

					$always_display_enclosures = sql_bool_to_bool($line["always_display_enclosures"]);

					$reply['content'] .= format_article_enclosures($id, $always_display_enclosures, $line["content"], sql_bool_to_bool($line["hide_images"]));

					$reply['content'] .= "</div>";

					$reply['content'] .= "<div class=\"cdmFooter\">";

					foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_LEFT_BUTTON) as $p) {
						$reply['content'] .= $p->hook_article_left_button($line);
					}

					$tags_str = format_tags_string($tags, $id);

					$reply['content'] .= "<img src='images/tag.png' alt='Tags' title='Tags'>
						<span id=\"ATSTR-$id\">$tags_str</span>
						<a title=\"".__('Edit tags for this article')."\"
						href=\"#\" onclick=\"editArticleTags($id)\">(+)</a>";

					$num_comments = $line["num_comments"];
					$entry_comments = "";

					if ($num_comments > 0) {
						if ($line["comments"]) {
							$comments_url = htmlspecialchars($line["comments"]);
						} else {
							$comments_url = htmlspecialchars($line["link"]);
						}
						$entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
					} else {
						if ($line["comments"] && $line["link"] != $line["comments"]) {
							$entry_comments = "<a target='_blank' href=\"".htmlspecialchars($line["comments"])."\">comments</a>";
						}
					}

					if ($entry_comments) $reply['content'] .= "&nbsp;($entry_comments)";

					$reply['content'] .= "<div style=\"float : right\">";

//					$reply['content'] .= "$marked_pic";
//					$reply['content'] .= "$published_pic";

					foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_ARTICLE_BUTTON) as $p) {
						$reply['content'] .= $p->hook_article_button($line);
					}

					$reply['content'] .= "</div>";
					$reply['content'] .= "</div>";

					$reply['content'] .= "</div><hr/>";

					$reply['content'] .= "</div>";

				}

				++$lnum;
			}

			if ($_REQUEST["debug"]) $timing_info = print_checkpoint("PE", $timing_info);

		} else {
			$message = "";

			switch ($view_mode) {
				case "unread":
					$message = __("No unread articles found to display.");
					break;
				case "updated":
					$message = __("No updated articles found to display.");
					break;
				case "marked":
					$message = __("No starred articles found to display.");
					break;
				default:
					if ($feed < LABEL_BASE_INDEX) {
						$message = __("No articles found to display. You can assign articles to labels manually from article header context menu (applies to all selected articles) or use a filter.");
					} else {
						$message = __("No articles found to display.");
					}
			}

			if (!$offset && $message) {
				$reply['content'] .= "<div class='whiteBox'>$message";

				$reply['content'] .= "<p><span class=\"insensitive\">";

				$result = $this->dbh->query("SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
					WHERE owner_uid = " . $_SESSION['uid']);

				$last_updated = $this->dbh->fetch_result($result, 0, "last_updated");
				$last_updated = make_local_datetime($last_updated, false);

				$reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);

				$result = $this->dbh->query("SELECT COUNT(id) AS num_errors
					FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);

				$num_errors = $this->dbh->fetch_result($result, 0, "num_errors");

				if ($num_errors > 0) {
					$reply['content'] .= "<br/>";
					$reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
						__('Some feeds have update errors (click for details)')."</a>";
				}
				$reply['content'] .= "</span></p></div>";
			}
		}

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H2", $timing_info);

		return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
			$vgroup_last_feed, $reply);
	}

	function catchupAll() {
		$this->dbh->query("UPDATE ttrss_user_entries SET
						last_read = NOW(), unread = false WHERE unread = true AND owner_uid = " . $_SESSION["uid"]);
		ccache_zero_all($_SESSION["uid"]);
	}

	function view() {
		$timing_info = microtime(true);

		$reply = array();

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("0", $timing_info);

		$omode = $this->dbh->escape_string($_REQUEST["omode"]);

		$feed = $this->dbh->escape_string($_REQUEST["feed"]);
		$method = $this->dbh->escape_string($_REQUEST["m"]);
		$view_mode = $this->dbh->escape_string($_REQUEST["view_mode"]);
		$limit = 30;
		@$cat_view = $_REQUEST["cat"] == "true";
		@$next_unread_feed = $this->dbh->escape_string($_REQUEST["nuf"]);
		@$offset = $this->dbh->escape_string($_REQUEST["skip"]);
		@$vgroup_last_feed = $this->dbh->escape_string($_REQUEST["vgrlf"]);
		$order_by = $this->dbh->escape_string($_REQUEST["order_by"]);

		if (is_numeric($feed)) $feed = (int) $feed;

		/* Feed -5 is a special case: it is used to display auxiliary information
		 * when there's nothing to load - e.g. no stuff in fresh feed */

		if ($feed == -5) {
			print json_encode($this->generate_dashboard_feed());
			return;
		}

		$result = false;

		if ($feed < LABEL_BASE_INDEX) {
			$label_feed = feed_to_label_id($feed);
			$result = $this->dbh->query("SELECT id FROM ttrss_labels2 WHERE
							id = '$label_feed' AND owner_uid = " . $_SESSION['uid']);
		} else if (!$cat_view && is_numeric($feed) && $feed > 0) {
			$result = $this->dbh->query("SELECT id FROM ttrss_feeds WHERE
							id = '$feed' AND owner_uid = " . $_SESSION['uid']);
		} else if ($cat_view && is_numeric($feed) && $feed > 0) {
			$result = $this->dbh->query("SELECT id FROM ttrss_feed_categories WHERE
							id = '$feed' AND owner_uid = " . $_SESSION['uid']);
		}

		if ($result && $this->dbh->num_rows($result) == 0) {
			print json_encode($this->generate_error_feed(__("Feed not found.")));
			return;
		}

		/* Updating a label ccache means recalculating all of the caches
		 * so for performance reasons we don't do that here */

		if ($feed >= 0) {
			ccache_update($feed, $_SESSION["uid"], $cat_view);
		}

		set_pref("_DEFAULT_VIEW_MODE", $view_mode);
		set_pref("_DEFAULT_VIEW_ORDER_BY", $order_by);

		/* bump login timestamp if needed */
		if (time() - $_SESSION["last_login_update"] > 3600) {
			$this->dbh->query("UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
				$_SESSION["uid"]);
			$_SESSION["last_login_update"] = time();
		}

		if (!$cat_view && is_numeric($feed) && $feed > 0) {
			$this->dbh->query("UPDATE ttrss_feeds SET last_viewed = NOW()
							WHERE id = '$feed' AND owner_uid = ".$_SESSION["uid"]);
		}

		$reply['headlines'] = array();

		if (!$next_unread_feed)
			$reply['headlines']['id'] = $feed;
		else
			$reply['headlines']['id'] = $next_unread_feed;

		$reply['headlines']['is_cat'] = (bool) $cat_view;

		$override_order = false;

		switch ($order_by) {
		case "title":
			$override_order = "ttrss_entries.title";
			break;
		case "date_reverse":
			$override_order = "score DESC, date_entered, updated";
			break;
		case "feed_dates":
			$override_order = "updated DESC";
			break;
		}

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("04", $timing_info);

		$ret = $this->format_headlines_list($feed, $method,
			$view_mode, $limit, $cat_view, $next_unread_feed, $offset,
			$vgroup_last_feed, $override_order, true);

		//$topmost_article_ids = $ret[0];
		$headlines_count = $ret[1];
		$returned_feed = $ret[2];
		$disable_cache = $ret[3];
		$vgroup_last_feed = $ret[4];

		$reply['headlines']['content'] =& $ret[5]['content'];
		$reply['headlines']['toolbar'] =& $ret[5]['toolbar'];

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("05", $timing_info);

		$reply['headlines-info'] = array("count" => (int) $headlines_count,
						"vgroup_last_feed" => $vgroup_last_feed,
						"disable_cache" => (bool) $disable_cache);

		if ($_REQUEST["debug"]) $timing_info = print_checkpoint("30", $timing_info);

		$reply['runtime-info'] = make_runtime_info();

		print json_encode($reply);

	}

	private function generate_dashboard_feed() {
		$reply = array();

		$reply['headlines']['id'] = -5;
		$reply['headlines']['is_cat'] = false;

		$reply['headlines']['toolbar'] = '';
		$reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');

		$reply['headlines']['content'] .= "<p><span class=\"insensitive\">";

		$result = $this->dbh->query("SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
			WHERE owner_uid = " . $_SESSION['uid']);

		$last_updated = $this->dbh->fetch_result($result, 0, "last_updated");
		$last_updated = make_local_datetime($last_updated, false);

		$reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);

		$result = $this->dbh->query("SELECT COUNT(id) AS num_errors
			FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);

		$num_errors = $this->dbh->fetch_result($result, 0, "num_errors");

		if ($num_errors > 0) {
			$reply['headlines']['content'] .= "<br/>";
			$reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
				__('Some feeds have update errors (click for details)')."</a>";
		}
		$reply['headlines']['content'] .= "</span></p>";

		$reply['headlines-info'] = array("count" => 0,
			"vgroup_last_feed" => '',
			"unread" => 0,
			"disable_cache" => true);

		return $reply;
	}

	private function generate_error_feed($error) {
		$reply = array();

		$reply['headlines']['id'] = -6;
		$reply['headlines']['is_cat'] = false;

		$reply['headlines']['toolbar'] = '';
		$reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";

		$reply['headlines-info'] = array("count" => 0,
			"vgroup_last_feed" => '',
			"unread" => 0,
			"disable_cache" => true);

		return $reply;
	}

	function quickAddFeed() {
		print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"rpc\">";
		print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"addfeed\">";

		print "<div class=\"dlgSec\">".__("Feed or site URL")."</div>";
		print "<div class=\"dlgSecCont\">";

		print "<div style='float : right'>
			<img style='display : none'
				id='feed_add_spinner' src='images/indicator_white.gif'></div>";

		print "<input style=\"font-size : 16px; width : 20em;\"
			placeHolder=\"".__("Feed or site URL")."\"
			dojoType=\"dijit.form.ValidationTextBox\" required=\"1\" name=\"feed\" id=\"feedDlg_feedUrl\">";

		print "<hr/>";

		if (get_pref('ENABLE_FEED_CATS')) {
			print __('Place in category:') . " ";
			print_feed_cat_select("cat", false, 'dojoType="dijit.form.Select"');
		}

		print "</div>";

		print '<div id="feedDlg_feedsContainer" style="display : none">

				<div class="dlgSec">' . __('Available feeds') . '</div>
				<div class="dlgSecCont">'.
				'<select id="feedDlg_feedContainerSelect"
					dojoType="dijit.form.Select" size="3">
					<script type="dojo/method" event="onChange" args="value">
						dijit.byId("feedDlg_feedUrl").attr("value", value);
					</script>
				</select>'.
				'</div></div>';

		print "<div id='feedDlg_loginContainer' style='display : none'>

				<div class=\"dlgSec\">".__("Authentication")."</div>
				<div class=\"dlgSecCont\">".

				" <input dojoType=\"dijit.form.TextBox\" name='login'\"
					placeHolder=\"".__("Login")."\"
					style=\"width : 10em;\"> ".
				" <input
					placeHolder=\"".__("Password")."\"
					dojoType=\"dijit.form.TextBox\" type='password'
					style=\"width : 10em;\" name='pass'\">
			</div></div>";


		print "<div style=\"clear : both\">
			<input type=\"checkbox\" name=\"need_auth\" dojoType=\"dijit.form.CheckBox\" id=\"feedDlg_loginCheck\"
					onclick='checkboxToggleElement(this, \"feedDlg_loginContainer\")'>
				<label for=\"feedDlg_loginCheck\">".
				__('This feed requires authentication.')."</div>";

		print "</form>";

		print "<div class=\"dlgButtons\">
			<button dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('feedAddDlg').execute()\">".__('Subscribe')."</button>";

		if (!(defined('_DISABLE_FEED_BROWSER') && _DISABLE_FEED_BROWSER)) {
			print "<button dojoType=\"dijit.form.Button\" onclick=\"return feedBrowser()\">".__('More feeds')."</button>";
		}

		print "<button dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('feedAddDlg').hide()\">".__('Cancel')."</button>
			</div>";

		//return;
	}

	function feedBrowser() {
		if (defined('_DISABLE_FEED_BROWSER') && _DISABLE_FEED_BROWSER) return;

		$browser_search = $this->dbh->escape_string($_REQUEST["search"]);

		print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"rpc\">";
		print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"updateFeedBrowser\">";

		print "<div dojoType=\"dijit.Toolbar\">
			<div style='float : right'>
			<img style='display : none'
				id='feed_browser_spinner' src='images/indicator_white.gif'>
			<input name=\"search\" dojoType=\"dijit.form.TextBox\" size=\"20\" type=\"search\"
				onchange=\"dijit.byId('feedBrowserDlg').update()\" value=\"$browser_search\">
			<button dojoType=\"dijit.form.Button\" onclick=\"dijit.byId('feedBrowserDlg').update()\">".__('Search')."</button>
		</div>";

		print " <select name=\"mode\" dojoType=\"dijit.form.Select\" onchange=\"dijit.byId('feedBrowserDlg').update()\">
			<option value='1'>" . __('Popular feeds') . "</option>
			<option value='2'>" . __('Feed archive') . "</option>
			</select> ";

		print __("limit:");

		print " <select dojoType=\"dijit.form.Select\" name=\"limit\" onchange=\"dijit.byId('feedBrowserDlg').update()\">";

		foreach (array(25, 50, 100, 200) as $l) {
			$issel = ($l == $limit) ? "selected=\"1\"" : "";
			print "<option $issel value=\"$l\">$l</option>";
		}

		print "</select> ";

		print "</div>";

		$owner_uid = $_SESSION["uid"];

		require_once "feedbrowser.php";

		print "<ul class='browseFeedList' id='browseFeedList'>";
		print make_feed_browser($search, 25);
		print "</ul>";

		print "<div align='center'>
			<button dojoType=\"dijit.form.Button\" onclick=\"dijit.byId('feedBrowserDlg').execute()\">".__('Subscribe')."</button>
			<button dojoType=\"dijit.form.Button\" style='display : none' id='feed_archive_remove' onclick=\"dijit.byId('feedBrowserDlg').removeFromArchive()\">".__('Remove')."</button>
			<button dojoType=\"dijit.form.Button\" onclick=\"dijit.byId('feedBrowserDlg').hide()\" >".__('Cancel')."</button></div>";

	}

	function search() {
		$this->params = explode(":", $this->dbh->escape_string($_REQUEST["param"]), 2);

		$active_feed_id = sprintf("%d", $this->params[0]);
		$is_cat = $this->params[1] != "false";

		print "<div class=\"dlgSec\">".__('Look for')."</div>";

		print "<div class=\"dlgSecCont\">";

		print "<input dojoType=\"dijit.form.ValidationTextBox\"
			style=\"font-size : 16px; width : 20em;\"
			required=\"1\" name=\"query\" type=\"search\" value=''>";

		print "<hr/>".__('Limit search to:')." ";

		print "<select name=\"search_mode\" dojoType=\"dijit.form.Select\">
			<option value=\"all_feeds\">".__('All feeds')."</option>";

		$feed_title = getFeedTitle($active_feed_id);

		if (!$is_cat) {
			$feed_cat_title = getFeedCatTitle($active_feed_id);
		} else {
			$feed_cat_title = getCategoryTitle($active_feed_id);
		}

		if ($active_feed_id && !$is_cat) {
			print "<option selected=\"1\" value=\"this_feed\">$feed_title</option>";
		} else {
			print "<option disabled=\"1\" value=\"false\">".__('This feed')."</option>";
		}

		if ($is_cat) {
		  	$cat_preselected = "selected=\"1\"";
		}

		if (get_pref('ENABLE_FEED_CATS') && ($active_feed_id > 0 || $is_cat)) {
			print "<option $cat_preselected value=\"this_cat\">$feed_cat_title</option>";
		} else {
			//print "<option disabled>".__('This category')."</option>";
		}

		print "</select>";

		print "</div>";

		print "<div class=\"dlgButtons\">";

		if (!SPHINX_ENABLED) {
			print "<div style=\"float : left\">
				<a class=\"visibleLink\" target=\"_blank\" href=\"http://tt-rss.org/wiki/SearchSyntax\">Search syntax</a>
				</div>";
		}

		print "<button dojoType=\"dijit.form.Button\" onclick=\"dijit.byId('searchDlg').execute()\">".__('Search')."</button>
		<button dojoType=\"dijit.form.Button\" onclick=\"dijit.byId('searchDlg').hide()\">".__('Cancel')."</button>
		</div>";
	}


}
?>