Provide email address verification feature (#2481)

* Add an email field to the profile page

I reuse the `mail_login` from the configuration. I'm not sure if it's
useful today (I would say it was used when Persona login was available).

A good improvement would be to rename `mail_login` into `email` so it
would be more intuitive to use.

* Add boolean to the conf to force email validation

This commit only adds a configuration item.

* Add email during registration if email must be validated

* Set email token to validate when email changes

* Block access to FreshRSS if email is not validated

* Send email when address is changed

* Allow to resend the validation email

* Allow the user to change its email while blocked

* Document the email validation feature

* fixup! Allow the user to change its email while blocked

* tec: Autoload PHPMailer lib

* Validate email address format

* Add feedback on validation email resend action

* Allow to logout when user is blocked

* fix: Change default email "from"

* Reorganize i18n keys

* Complete all the locales with default english

* Hide sidebar (profile page) if email is not validated

* Check email requirements on registration

* Allow admin to specify email when creating users

* Don't check email format if value is empty

* Remove trailing comma in userController

Co-Authored-By: Alexandre Alapetite <alexandre@alapetite.fr>

* Set PHPMailer validator to html5 before sending email

* fixup! Remove trailing comma in userController

6 files changed, 25 insertions, 4 deletions

diff --git a/lib/Minz/Mailer.php b/lib/Minz/Mailer.php
index 0e88f71d9..04392982b 100644
--- a/lib/Minz/Mailer.php
+++ b/lib/Minz/Mailer.php
@@ -3,10 +3,6 @@
 use PHPMailer\PHPMailer\PHPMailer;
 use PHPMailer\PHPMailer\Exception;
 
-require LIB_PATH . '/PHPMailer/PHPMailer.php';
-require LIB_PATH . '/PHPMailer/Exception.php';
-require LIB_PATH . '/PHPMailer/SMTP.php';
-
 /**
  * Allow to send emails.
  *
@@ -78,6 +74,8 @@ class Minz_Mailer {
 		$body = ob_get_contents();
 		ob_end_clean();
 
+		PHPMailer::$validator = 'html5';
+
 		$mail = new PHPMailer(true);
 		try {
 			// Server settings
diff --git a/lib/Minz/Request.php b/lib/Minz/Request.php
index 912c354ac..01feece52 100644
--- a/lib/Minz/Request.php
+++ b/lib/Minz/Request.php
@@ -98,6 +98,13 @@ class Minz_Request {
 		self::initJSON();
 	}
 
+	public static function is($controller_name, $action_name) {
+		return (
+			self::$controller_name === $controller_name &&
+			self::$action_name === $action_name
+		);
+	}
+
 	/**
 	 * Return true if the request is over HTTPS, false otherwise (HTTP)
 	 */
diff --git a/lib/PHPMailer/Exception.php b/lib/PHPMailer/PHPMailer/Exception.php
index 9a05dec3c..9a05dec3c 100644
--- a/lib/PHPMailer/Exception.php
+++ b/lib/PHPMailer/PHPMailer/Exception.php
diff --git a/lib/PHPMailer/PHPMailer.php b/lib/PHPMailer/PHPMailer/PHPMailer.php
index 52104924d..52104924d 100644
--- a/lib/PHPMailer/PHPMailer.php
+++ b/lib/PHPMailer/PHPMailer/PHPMailer.php
diff --git a/lib/PHPMailer/SMTP.php b/lib/PHPMailer/PHPMailer/SMTP.php
index da85442bf..da85442bf 100644
--- a/lib/PHPMailer/SMTP.php
+++ b/lib/PHPMailer/PHPMailer/SMTP.php
diff --git a/lib/lib_rss.php b/lib/lib_rss.php
index 2706ff606..03cfb82ad 100644
--- a/lib/lib_rss.php
+++ b/lib/lib_rss.php
@@ -55,6 +55,8 @@ function classAutoloader($class) {
 		include(LIB_PATH . '/' . str_replace('_', '/', $class) . '.php');
 	} elseif (strpos($class, 'SimplePie') === 0) {
 		include(LIB_PATH . '/SimplePie/' . str_replace('_', '/', $class) . '.php');
+	} elseif (strpos($class, 'PHPMailer') === 0) {
+		include(LIB_PATH . '/' . str_replace('\\', '/', $class) . '.php');
 	}
 }
 
@@ -278,6 +280,20 @@ function sanitizeHTML($data, $base = '') {
 }
 
 /**
+ * Validate an email address, supports internationalized addresses.
+ *
+ * @param string $email The address to validate
+ *
+ * @return bool true if email is valid, else false
+ */
+function validateEmailAddress($email) {
+	$mailer = new PHPMailer\PHPMailer\PHPMailer();
+	$mailer->Charset = 'utf-8';
+	$punyemail = $mailer->punyencodeAddress($email);
+	return PHPMailer\PHPMailer\PHPMailer::validateAddress($punyemail, 'html5');
+}
+
+/**
  * Add support of image lazy loading
  * Move content from src attribute to data-original
  * @param content is the text we want to parse