autolink and html support

warioishere · Jan 9, 2018 · 015b424 · 015b424
1 parent 9e36b93
commit 015b424
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Showing 8 changed files with 249 additions and 19 deletions.
diff --git a/composer.json b/composer.json
@@ -1,7 +1,8 @@
 {
   "require": {
     "php-imap/php-imap": "~2.0",
-    "gnugat/PronounceableWord": "*"
+    "gnugat/PronounceableWord": "*",
+    "ezyang/htmlpurifier": "^4.9"
   },
   "config": {
     "vendor-dir": "src/backend-libs"

diff --git a/composer.lock b/composer.lock
diff --git a/src/backend-libs/composer/autoload_namespaces.php b/src/backend-libs/composer/autoload_namespaces.php
@@ -8,4 +8,5 @@
 return array(
     'PronounceableWord_' => array($vendorDir . '/gnugat/PronounceableWord/src'),
     'PhpImap' => array($vendorDir . '/php-imap/php-imap/src'),
+    'HTMLPurifier' => array($vendorDir . '/ezyang/htmlpurifier/library'),
 );
diff --git a/src/backend-libs/composer/autoload_real.php b/src/backend-libs/composer/autoload_real.php
@@ -47,6 +47,24 @@ public static function getLoader()
 
         $loader->register(true);
 
+        if ($useStaticLoader) {
+            $includeFiles = Composer\Autoload\ComposerStaticInit125dddd280a32cf75b181166154246ec::$files;
+        } else {
+            $includeFiles = require __DIR__ . '/autoload_files.php';
+        }
+        foreach ($includeFiles as $fileIdentifier => $file) {
+            composerRequire125dddd280a32cf75b181166154246ec($fileIdentifier, $file);
+        }
+
         return $loader;
     }
 }
+
+function composerRequire125dddd280a32cf75b181166154246ec($fileIdentifier, $file)
+{
+    if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+        require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+    }
+}
diff --git a/src/backend-libs/composer/autoload_static.php b/src/backend-libs/composer/autoload_static.php
@@ -6,6 +6,10 @@
 
 class ComposerStaticInit125dddd280a32cf75b181166154246ec
 {
+    public static $files = array (
+        '2cffec82183ee1cea088009cef9a6fc3' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php',
+    );
+
     public static $prefixesPsr0 = array (
         'P' => 
         array (
@@ -18,6 +22,13 @@ class ComposerStaticInit125dddd280a32cf75b181166154246ec
                 0 => __DIR__ . '/..' . '/php-imap/php-imap/src',
             ),
         ),
+        'H' => 
+        array (
+            'HTMLPurifier' => 
+            array (
+                0 => __DIR__ . '/..' . '/ezyang/htmlpurifier/library',
+            ),
+        ),
     );
 
     public static function getInitializer(ClassLoader $loader)

diff --git a/src/backend-libs/composer/installed.json b/src/backend-libs/composer/installed.json
@@ -87,5 +87,54 @@
             "word"
         ],
         "abandoned": true
+    },
+    {
+        "name": "ezyang/htmlpurifier",
+        "version": "v4.9.3",
+        "version_normalized": "4.9.3.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/ezyang/htmlpurifier.git",
+            "reference": "95e1bae3182efc0f3422896a3236e991049dac69"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/ezyang/htmlpurifier/zipball/95e1bae3182efc0f3422896a3236e991049dac69",
+            "reference": "95e1bae3182efc0f3422896a3236e991049dac69",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.2"
+        },
+        "require-dev": {
+            "simpletest/simpletest": "^1.1"
+        },
+        "time": "2017-06-03 02:28:16",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "HTMLPurifier": "library/"
+            },
+            "files": [
+                "library/HTMLPurifier.composer.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "LGPL"
+        ],
+        "authors": [
+            {
+                "name": "Edward Z. Yang",
+                "email": "[email protected]",
+                "homepage": "http://ezyang.com"
+            }
+        ],
+        "description": "Standards compliant HTML filter written in PHP",
+        "homepage": "http://htmlpurifier.org/",
+        "keywords": [
+            "html"
+        ]
     }
 ]
diff --git a/src/backend.php b/src/backend.php
@@ -155,5 +155,74 @@ function delete_old_messages() {
 }
 
 
+class AutoLinkExtension {
+    static public function auto_link_text($string) {
+
+        $string = preg_replace_callback("/
+            ((?<![\"'])                                     # don't look inside quotes
+            (\b
+            (                           # protocol or www.
+                [a-z]{3,}:\/\/
+            |
+                www\.
+            )
+            (?:                         # domain
+                [a-zA-Z0-9_\-]+
+                (?:\.[a-zA-Z0-9_\-]+)*
+            |
+                localhost
+            )
+            (?:                         # port
+                 \:[0-9]+
+            )?
+            (?:                         # path
+                \/[a-z0-9:%_|~.-]*
+                (?:\/[a-z0-9:%_|~.-]*)*
+            )?
+            (?:                         # attributes
+                \?[a-z0-9:%_|~.=&#;-]*
+            )?
+            (?:                         # anchor
+                \#[a-z0-9:%_|~.=&#;-]*
+            )?
+            )
+            (?![\"']))
+            /ix", function ($match) {
+            $url = $match[0];
+            $href = $url;
+
+            if (false === strpos($href, 'http')) {
+                $href = 'http://' . $href;
+            }
+            return '<a href="' . $href . '" rel="noreferrer">' . $url . '</a>';
+        }
+            , $string);
+
+
+        $string = AutoLinkExtension::unescape($string);
+
+        return $string;
+    } # filter()
+
+    /**
+     * unescape()
+     *
+     * @param string $text
+     * @return string $text
+     **/
+    static function unescape($text) {
+        global $escape_autolink_uri;
+
+        if (!$escape_autolink_uri)
+            return $text;
+
+        $unescape = array_reverse($escape_autolink_uri);
+
+        return str_replace(array_keys($unescape), array_values($unescape), $text);
+    } # unescape()
+
+}
+
+
 // run on every request
 delete_old_messages();
diff --git a/src/index.php b/src/index.php
@@ -1,6 +1,11 @@
 <?php
 require_once('backend.php');
 
+$purifier_config = HTMLPurifier_Config::createDefault();
+$purifier_config->set('HTML.Nofollow', true);
+$purifier_config->set('HTML.ForbiddenElements', array("img"));
+$purifier = new HTMLPurifier($purifier_config);
+
 // simple router:
 if (isset($_GET['username']) && isset($_GET['domain'])) {
     $username = filter_input(INPUT_GET, 'username', FILTER_SANITIZE_EMAIL);
@@ -30,15 +35,14 @@
         exit();
     }
     $emails = get_emails($address);
-
     ?>
 
     <html lang="en">
     <head>
         <meta charset="utf-8">
         <title><?php echo $address ?></title>
         <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
-        <link rel="icon" type="image/x-icon" href="favicon.ico">
+        <link rel="icon" type="image/x-icon" href="favicon.gif">
         <meta name="mobile-web-app-capable" content="yes">
         <meta name="apple-mobile-web-app-capable" content="yes">
         <meta name="apple-mobile-web-app-status-bar-style" content="black">
@@ -77,7 +81,24 @@ function reload() {
 
             setInterval(function () {
                 reloadWithTurbolinks();
-            }, 15000)
+            }, 15000);
+
+
+            function showHtml(id) {
+                document.getElementById('email-' + id + '-html').style.display = 'block';
+                document.getElementById('email-' + id + '-plain').style.display = 'none';
+                document.getElementById('show-html-button-' + id).style.display = 'none';
+                document.getElementById('show-plain-button-' + id).style.display = 'block';
+                return false;
+            }
+
+            function showPlain(id) {
+                document.getElementById('email-' + id + '-html').style.display = 'none';
+                document.getElementById('email-' + id + '-plain').style.display = 'block';
+                document.getElementById('show-html-button-' + id).style.display = 'block';
+                document.getElementById('show-plain-button-' + id).style.display = 'none';
+                return false;
+            }
 
         </script>
     </head>
@@ -95,11 +116,11 @@ function reload() {
                 <div class="form-group row">
 
                     <div class="col-sm-4">
-                        <input id="username" class="form-control form-control-lg" name="username"
+                        <input id="username" class="form-control form-control-lg" name="username" title="username"
                                value="<?php echo $username ?>">
                     </div>
                     <div class="col-sm-3">
-                        <select id="domain" class="form-control form-control-lg" name="domain">
+                        <select id="domain" class="form-control form-control-lg" name="domain" title="domain">
                             <?php
                             foreach ($config['domains'] as $domain) {
                                 $selected = $domain === $userDomain ? ' selected ' : '';
@@ -166,9 +187,18 @@ function reload() {
                                     <div class="col-sm-4 text-right">
                                         <form class="form-inline float-xs-right">
 
-                                            <!-- TODO: switch between html and plaintext -->
-                                            <!--                                        <button class="btn btn-outline-info btn-sm">show html-->
-                                            <!--                                        </button>-->
+                                            <button type="button" class="btn btn-outline-info btn-sm"
+                                                    style="display: block"
+                                                    id="show-html-button-<?php echo filter_var($email->id, FILTER_VALIDATE_INT); ?>"
+                                                    onclick="showHtml(<?php echo filter_var($email->id, FILTER_VALIDATE_INT); ?>)">
+                                                show html
+                                            </button>
+                                            <button type="button" class="btn btn-outline-info btn-sm"
+                                                    style="display: none"
+                                                    id="show-plain-button-<?php echo filter_var($email->id, FILTER_VALIDATE_INT); ?>"
+                                                    onclick="showPlain(<?php echo filter_var($email->id, FILTER_VALIDATE_INT); ?>)">
+                                                show text
+                                            </button>
 
                                             <a class="btn btn-sm btn-outline-primary " download="true"
                                                role="button"
@@ -216,17 +246,21 @@ function reload() {
 
 
                                 <div class="mt-2 card-text">
-                                    <!-- TODO: switch between html and plaintext -->
-                                    <div>
-                                        <!-- TODO: applyAutolink
-                                            TODO: applyNewlines -->
+                                    <!-- show plaintext or html -->
+                                    <div id="email-<?php echo filter_var($email->id, FILTER_VALIDATE_INT); ?>-plain"
+                                         style="display: block;">
                                         <?php $text = filter_var($email->textPlain, FILTER_SANITIZE_SPECIAL_CHARS);
-                                        echo str_replace('&#10;', '<br />', $text);
+                                        // Keep newlines
+                                        $text = str_replace('&#10;', '<br />', $text);
+                                        echo \AutoLinkExtension::auto_link_text($text)
                                         ?>
-
                                     </div>
-                                    <div *ngIf="htmlTabActive">
-                                        <!-- TODO: stripHtml(mail.textHtml) -->
+                                    <div id="email-<?php echo filter_var($email->id, FILTER_VALIDATE_INT); ?>-html"
+                                         style="display: none;">
+                                        <?php
+                                        $clean_html = $purifier->purify($email->textHtml);
+                                        echo $clean_html;
+                                        ?>
                                     </div>
                                 </div>