add article forwarding by email (closes #271)

8 files changed, 265 insertions, 29 deletions

diff --git a/config.php-dist b/config.php-dist
index b52414d9f..1cabc5a07 100644
--- a/config.php-dist
+++ b/config.php-dist
@@ -74,7 +74,8 @@
 	// Fetch favicons using CURL, useful if your PHP has disabled remote fopen()
 
 	define('DIGEST_ENABLE', true);
-	// Global option to enable daily digests
+	// Global option to enable daily digests. Also toggles the ability of users
+	// to forward articles by email.
 
 	define('DIGEST_EMAIL_LIMIT', 10);
 	// The maximum amount of emails sent in one digest batch
diff --git a/functions.php b/functions.php
index a11d9e59c..18e7b23f1 100644
--- a/functions.php
+++ b/functions.php
@@ -4787,7 +4787,7 @@
 
 			print "<div class=\"postReply\">";
 
-			print "<div class=\"postHeader\" onmouseover=\"enable_resize(true)\" 
+			print "<div class=\"postHeader\" onmouseover=\"enable_resize(false)\" 
 				onmouseout=\"enable_resize(false)\">";
 
 			$entry_author = $line["author"];
@@ -4819,7 +4819,7 @@
 			if (!$zoom_mode) {
 				print "<span id=\"ATSTR-$id\">$tags_str</span>
 					<a title=\"".__('Edit tags for this article')."\" 
-					href=\"javascript:editArticleTags($id, $feed_id)\">(+)</a>";
+					href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
 
 				print "<img src=\"".theme_image($link, 'images/art-zoom.png')."\" 
 						class='tagsPic' style=\"cursor : pointer\" style=\"cursor : pointer\"
@@ -4833,6 +4833,13 @@
 						onclick=\"publishWithNote($id, '$note_escaped')\"
 						alt='PubNote' title='".__('Publish article with a note')."'>";
 
+				if (DIGEST_ENABLE) {
+					print "<img src=\"".theme_image($link, 'images/art-email.png')."\" 
+						class='tagsPic' style=\"cursor : pointer\" style=\"cursor : pointer\"
+						onclick=\"emailArticle($id)\"
+						alt='Zoom' title='".__('Forward by email')."'>";
+				}
+
 			} else {
 				$tags_str = strip_tags($tags_str);
 				print "<span id=\"ATSTR-$id\">$tags_str</span>";
@@ -6838,4 +6845,14 @@
 		print "<disable-cache value=\"1\"/>";
 
 	}
+
+	function save_email_address($link, $email) {
+		// FIXME: implement persistent storage of emails
+
+		if (!$_SESSION['stored_emails']) 
+			$_SESSION['stored_emails'] = array();
+
+		if (!in_array($email, $_SESSION['stored_emails']))
+			array_push($_SESSION['stored_emails'], $email);
+	}
 ?>
diff --git a/images/art-email.png b/images/art-email.png
new file mode 100755
index 000000000..babe43a22
--- /dev/null
+++ b/images/art-email.png
diff --git a/modules/backend-rpc.php b/modules/backend-rpc.php
index 1645db96e..55babdaa7 100644
--- a/modules/backend-rpc.php
+++ b/modules/backend-rpc.php
@@ -1019,6 +1019,81 @@
 			return;
 		}
 
+		if ($subop == "sendEmail") {
+			$secretkey = $_REQUEST['secretkey'];
+
+			print "<rpc-reply>";
+
+			if (DIGEST_ENABLE && $_SESSION['email_secretkey'] && 
+						$secretkey == $_SESSION['email_secretkey']) {
+
+				$_SESSION['email_secretkey'] = '';
+
+				$destination = $_REQUEST['destination'];
+				$subject = $_REQUEST['subject'];
+				$content = $_REQUEST['content'];
+
+				$replyto = strip_tags($_SESSION['email_replyto']);
+				$fromname = strip_tags($_SESSION['email_fromname']);
+
+				$mail = new PHPMailer();
+
+				$mail->PluginDir = "lib/phpmailer/";
+				$mail->SetLanguage("en", "lib/phpmailer/language/");
+
+				$mail->CharSet = "UTF-8";
+
+				$mail->From = $replyto;
+				$mail->FromName = $fromname;
+				$mail->AddAddress($destination);
+
+				if (DIGEST_SMTP_HOST) {
+					$mail->Host = DIGEST_SMTP_HOST;
+					$mail->Mailer = "smtp";
+					$mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
+					$mail->Username = DIGEST_SMTP_LOGIN;
+					$mail->Password = DIGEST_SMTP_PASSWORD;
+				}
+
+				$mail->IsHTML(false);
+				$mail->Subject = $subject;
+				$mail->Body = $content;
+
+				$rc = $mail->Send();
+
+				if (!$rc) {
+					print "<error><![CDATA[" . $mail->ErrorInfo . "]]></error>";
+				} else {
+					save_email_address($link, db_escape_string($destination));
+					print "<message>OK</message>";
+				}
+
+			} else {
+				print "<error>Not authorized.</error>";
+			}
+
+			print "</rpc-reply>";
+
+			return;
+		}
+
+		if ($subop == "completeEmails") {
+
+			$search = db_escape_string($_REQUEST["search"]);
+
+			print "<ul>";
+
+			foreach ($_SESSION['stored_emails'] as $email) {
+				if (strpos($email, $search) !== false) {
+					print "<li>$email</li>";
+				}
+			}
+
+			print "</ul>";
+
+			return;
+		}
+
 		print "<rpc-reply><error>Unknown method: $subop</error></rpc-reply>";
 	}
 ?>
diff --git a/modules/popup-dialog.php b/modules/popup-dialog.php
index 4d68fb971..fb1921291 100644
--- a/modules/popup-dialog.php
+++ b/modules/popup-dialog.php
@@ -279,7 +279,7 @@
 
 			print "<input size=\"40\"
 					onkeypress=\"return filterCR(event, subscribeToFeed)\"
-					name=\"feed\" id=\"feed_url\"></td></tr>";
+					name=\"feed\" id=\"feed_url\">";
 
 			print "<br/>";
 
@@ -666,47 +666,113 @@
 			return;
 		}
 
-/*		if ($id == "offlineDownload") {
-			print "<div id=\"infoBoxTitle\">".__('Download articles')."</div>";
+		if ($id == "emailArticle") {
+
+			print "<div id=\"infoBoxTitle\">".__('Forward article by email')."</div>";
 			print "<div class=\"infoBoxContents\">";
 
-			print "<form name='download_ops_form' id='download_ops_form'>";
+			print "<form id=\"article_email_form\" onsubmit='return false'>";
 
-			print "<div class=\"dlgSec\">".__("Download")."</div>";
+			$secretkey = sha1(make_password(10));
 
-			print "<div class=\"dlgSecCont\">";
+			$_SESSION['email_secretkey'] = $secretkey;
 
-			$amount = array(
-				50  => 50,
-				100 => 100,
-				250 => 250,
-				500 => 500);
+			print "<input type=\"hidden\" name=\"secretkey\" value=\"$secretkey\">";
+			print "<input type=\"hidden\" name=\"op\" value=\"rpc\">";
+			print "<input type=\"hidden\" name=\"subop\" value=\"sendEmail\">"; 
 
-			print_select_hash("amount", 50, $amount);
+			require_once "lib/MiniTemplator.class.php";
 
-			print " " . __("latest articles for offline reading.");
+			$tpl = new MiniTemplator;
+			$tpl_t = new MiniTemplator;
 
-			print "<br/>";
+			$tpl->readTemplateFromFile("templates/email_article_template.txt");
 
-			print "<input checked='yes' type='checkbox' name='unread_only' id='unread_only'>";
-			print "<label for='unread_only'>".__('Only include unread articles')."</label>";
+			$result = db_query($link, "SELECT link, content, title
+				FROM ttrss_user_entries, ttrss_entries WHERE id = ref_id AND
+				id = '$param' AND owner_uid = " . $_SESSION["uid"]);
 
-			print "</div>";
+			$line = db_fetch_assoc($result);
+
+			$subject = htmlspecialchars(__("[Forwarded]") . " " . $line["title"]);
+
+			$tpl->setVariable('ARTICLE_TITLE', strip_tags($line["title"]));
+
+/*			$tpl->setVariable('ARTICLE_EXCERPT', 
+				truncate_string(strip_tags($line["content"]), 200)); */
+
+			$tpl->setVariable('ARTICLE_URL', strip_tags($line["link"]));
+
+			$result = db_query($link, "SELECT email FROM ttrss_users WHERE
+				id = " . $_SESSION["uid"]);
+
+			$user_email = htmlspecialchars(db_fetch_result($result, 0, "email"));
+			$user_name = htmlspecialchars($_SESSION["name"]);
+
+			//print "<input type=\"hidden\" name=\"replyto\" value=\"$user_email\">"; 
+			//print "<input type=\"hidden\" name=\"fromname\" value=\"$user_name\">"; 
+
+			$_SESSION['email_replyto'] = $user_email;
+			$_SESSION['email_fromname'] = $user_name;
+
+			$tpl->setVariable('USER_NAME', $_SESSION["name"]);
+			$tpl->setVariable('USER_EMAIL', $user_email);
+			$tpl->setVariable('TTRSS_HOST', $_SERVER["HTTP_HOST"]);
+
+			$tpl->addBlock('email');
+		
+			$content = "";
+			$tpl->generateOutputToString($content);
+
+			print "<table width='100%'><tr><td>";
+
+			print __('From:');
+
+			print "</td><td>";
+
+			print "<input size=\"40\" disabled
+					onkeypress=\"return filterCR(event, false)\"
+					value=\"$user_name <$user_email>\">";
+
+			print "</td></tr><tr><td>";
+
+			print __('To:');
+
+			print "</td><td>";
+
+			print "<input size=\"40\"
+					onkeypress=\"return filterCR(event, false)\"
+					name=\"destination\" id=\"destination\">";
+
+			print "<div class=\"autocomplete\" id=\"destination_choices\" 
+					style=\"display:none\"></div>";	
+
+			print "</td></tr><tr><td>";
+
+			print __('Subject:');
+
+			print "</td><td>";
+
+			print "<input size=\"60\" class=\"iedit\"
+					onkeypress=\"return filterCR(event, false)\"
+					name=\"subject\" value=\"$subject\" id=\"subject\">";
+
+			print "</td></tr></table>";
+
+			print "<textarea rows='10' class='iedit' style='font-size : small'
+				name='content'>$content</textarea>";
 
 			print "</form>";
 
-			print "<div class=\"dlgButtons\">
-				<input class=\"button\"
-					type=\"submit\" onclick=\"return initiate_offline_download(0, this)\" value=\"".__('Download')."\">
-				<input class=\"button\"
-					type=\"submit\" onclick=\"return closeInfoBox()\" 
-					value=\"".__('Cancel')."\"></div>";
+			print "<div class='dlgButtons'>";
+
+			print "<button onclick=\"return emailArticleDo()\">".__('Send e-mail')."</button> ";
+			print "<button onclick=\"return closeInfoBox()\">".__('Cancel')."</button>";
 
 			print "</div>";
 
 			return;
-		} */
-
+		}
 
 		print "<div id='infoBoxTitle'>Internal Error</div>
 			<div id='infoBoxContents'>
diff --git a/templates/email_article_template.txt b/templates/email_article_template.txt
new file mode 100644
index 000000000..035ee5c97
--- /dev/null
+++ b/templates/email_article_template.txt
@@ -0,0 +1,15 @@
+<!-- $BeginBlock email -->
+Hi,
+
+I've been reading this article and thought it might interest you:
+
+${ARTICLE_TITLE}
+
+${ARTICLE_URL}
+
+Sincerely yours, 
+	${USER_NAME} <${USER_EMAIL}>.
+
+-- 
+This message has been sent by Tiny Tiny RSS installation at ${TTRSS_HOST}.
+<!-- $EndBlock email -->
diff --git a/tt-rss.css b/tt-rss.css
index a6fef1e1f..ba7bbe575 100644
--- a/tt-rss.css
+++ b/tt-rss.css
@@ -34,7 +34,7 @@ div.postReply div.postHeader {
 	background-color : #f9faff;
 	margin : 0px 1px 0px 0px;
 	padding : 5px;
-	cursor : move;
+	/* cursor : move; */
 	color : #909090;
 }
 
@@ -2001,3 +2001,5 @@ button[disabled] {
 	color : #dedede;
 	border : 1px solid #dedede;
 } */
+
+
diff --git a/viewfeed.js b/viewfeed.js
index 1b8a1dab0..ac76be70b 100644
--- a/viewfeed.js
+++ b/viewfeed.js
@@ -2262,3 +2262,63 @@ function publishWithNote(id, def_note) {
 		exception_error("publishWithNote", e);
 	}
 }
+
+function emailArticle(id) {
+	try {
+		displayDlg('emailArticle', id, 
+		   function () {				
+				document.forms['article_email_form'].destination.focus();
+
+			   new Ajax.Autocompleter('destination', 'destination_choices',
+				   "backend.php?op=rpc&subop=completeEmails",
+				   { tokens: '', paramName: "search" });
+
+			});
+
+	} catch (e) {
+		exception_error("emailArticle", e);
+	}
+}
+
+function emailArticleDo(id) {
+	try {
+		var f = document.forms['article_email_form'];
+
+		if (f.destination.value == "") {
+			alert("Please fill in the destination email.");
+			return;
+		}
+
+		if (f.subject.value == "") {
+			alert("Please fill in the subject.");
+			return;
+		}
+
+		var query = Form.serialize("article_email_form");
+
+//		console.log(query);
+
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				try {
+
+					var error = transport.responseXML.getElementsByTagName('error')[0];
+
+					if (error) {
+						alert(__('Error sending email:') + ' ' + error.firstChild.nodeValue);
+					} else {
+						notify_info('Your message has been sent.');
+						closeInfoBox();
+					}
+
+				} catch (e) {
+					exception_error("sendEmailDo", e);
+				}
+
+			} });
+
+	} catch (e) {
+		exception_error("emailArticleDo", e);
+	}
+}