Remove type declaration for PHP 5 compatibility

[github/wallabag/wallabag.git] / src / Wallabag / CoreBundle / Helper / ContentProxy.php

diff --git a/src/Wallabag/CoreBundle/Helper/ContentProxy.php b/src/Wallabag/CoreBundle/Helper/ContentProxy.php
index 656ac6eecb93b4430c2bf413787aaf680646a3c9..29259bbdb6ca57e0f66927a1993b029e4036ceec 100644 (file)
--- a/src/Wallabag/CoreBundle/Helper/ContentProxy.php
+++ b/src/Wallabag/CoreBundle/Helper/ContentProxy.php
@@ -24,8 +24,9 @@ class ContentProxy
     protected $mimeGuesser;
     protected $fetchingErrorMessage;
     protected $eventDispatcher;
+    protected $storeArticleHeaders;
 
-    public function __construct(Graby $graby, RuleBasedTagger $tagger, ValidatorInterface $validator, LoggerInterface $logger, $fetchingErrorMessage)
+    public function __construct(Graby $graby, RuleBasedTagger $tagger, ValidatorInterface $validator, LoggerInterface $logger, $fetchingErrorMessage, $storeArticleHeaders = false)
     {
         $this->graby = $graby;
         $this->tagger = $tagger;
@@ -33,6 +34,7 @@ class ContentProxy
         $this->logger = $logger;
         $this->mimeGuesser = new MimeTypeExtensionGuesser();
         $this->fetchingErrorMessage = $fetchingErrorMessage;
+        $this->storeArticleHeaders = $storeArticleHeaders;
     }
 
     /**
@@ -51,6 +53,7 @@ class ContentProxy
 
         if ((empty($content) || false === $this->validateContent($content)) && false === $disableContentUpdate) {
             $fetchedContent = $this->graby->fetchContent($url);
+            $fetchedContent['title'] = $this->sanitizeUTF8Text($fetchedContent['title']);
 
             // when content is imported, we have information in $content
             // in case fetching content goes bad, we'll keep the imported information instead of overriding them
@@ -66,6 +69,28 @@ class ContentProxy
         $this->stockEntry($entry, $content);
     }
 
+    /**
+     * Remove invalid UTF-8 characters from the given string in following steps:
+     * - try to interpret the given string as ISO-8859-1, convert it to UTF-8 and return it (if its valid)
+     * - simply remove every invalid UTF-8 character and return the result (https://stackoverflow.com/a/1433665)
+     * @param String $rawText
+     * @return string
+     */
+    private function sanitizeUTF8Text($rawText) {
+        if (mb_check_encoding($rawText, 'utf-8')) {
+            return $rawText; // return because its valid utf-8 text
+        }
+
+        // we assume that $text is encoded in ISO-8859-1 (and not the similar Windows-1252 or other encoding)
+        $convertedText = utf8_encode($rawText);
+        if (mb_check_encoding($convertedText, 'utf-8')) {
+            return $convertedText;
+        }
+
+        // last resort: simply remove invalid UTF-8 character because $rawText can have some every exotic encoding
+        return iconv("UTF-8", "UTF-8//IGNORE", $rawText);
+    }
+
     /**
      * Use a Symfony validator to ensure the language is well formatted.
      *
@@ -83,7 +108,7 @@ class ContentProxy
             (new LocaleConstraint())
         );
 
-        if (0 === count($errors)) {
+        if (0 === \count($errors)) {
             $entry->setLanguage($value);
 
             return;
@@ -105,7 +130,7 @@ class ContentProxy
             (new UrlConstraint())
         );
 
-        if (0 === count($errors)) {
+        if (0 === \count($errors)) {
             $entry->setPreviewPicture($value);
 
             return;
@@ -125,17 +150,55 @@ class ContentProxy
         $date = $value;
 
         // is it a timestamp?
-        if (filter_var($date, FILTER_VALIDATE_INT) !== false) {
-            $date = '@' . $value;
+        if (false !== filter_var($date, FILTER_VALIDATE_INT)) {
+            $date = '@' . $date;
         }
 
         try {
-            $entry->setPublishedAt(new \DateTime($date));
+            // is it already a DateTime?
+            // (it's inside the try/catch in case of fail to be parse time string)
+            if (!$date instanceof \DateTime) {
+                $date = new \DateTime($date);
+            }
+
+            $entry->setPublishedAt($date);
         } catch (\Exception $e) {
             $this->logger->warning('Error while defining date', ['e' => $e, 'url' => $entry->getUrl(), 'date' => $value]);
         }
     }
 
+    /**
+     * Helper to extract and save host from entry url.
+     *
+     * @param Entry $entry
+     */
+    public function setEntryDomainName(Entry $entry)
+    {
+        $domainName = parse_url($entry->getUrl(), PHP_URL_HOST);
+        if (false !== $domainName) {
+            $entry->setDomainName($domainName);
+        }
+    }
+
+    /**
+     * Helper to set a default title using:
+     * - url basename, if applicable
+     * - hostname.
+     *
+     * @param Entry $entry
+     */
+    public function setDefaultEntryTitle(Entry $entry)
+    {
+        $url = parse_url($entry->getUrl());
+        $path = pathinfo($url['path'], PATHINFO_BASENAME);
+
+        if (empty($path)) {
+            $path = $url['host'];
+        }
+
+        $entry->setTitle($path);
+    }
+
     /**
      * Stock entry with fetched or imported content.
      * Will fall back to OpenGraph data if available.
@@ -147,10 +210,7 @@ class ContentProxy
     {
         $entry->setUrl($content['url']);
 
-        $domainName = parse_url($entry->getUrl(), PHP_URL_HOST);
-        if (false !== $domainName) {
-            $entry->setDomainName($domainName);
-        }
+        $this->setEntryDomainName($entry);
 
         if (!empty($content['title'])) {
             $entry->setTitle($content['title']);
@@ -175,11 +235,11 @@ class ContentProxy
             $entry->setHttpStatus($content['status']);
         }
 
-        if (!empty($content['authors']) && is_array($content['authors'])) {
+        if (!empty($content['authors']) && \is_array($content['authors'])) {
             $entry->setPublishedBy($content['authors']);
         }
 
-        if (!empty($content['all_headers'])) {
+        if (!empty($content['all_headers']) && $this->storeArticleHeaders) {
             $entry->setHeaders($content['all_headers']);
         }
 
@@ -196,7 +256,7 @@ class ContentProxy
         }
 
         // if content is an image, define it as a preview too
-        if (!empty($content['content_type']) && in_array($this->mimeGuesser->guess($content['content_type']), ['jpeg', 'jpg', 'gif', 'png'], true)) {
+        if (!empty($content['content_type']) && \in_array($this->mimeGuesser->guess($content['content_type']), ['jpeg', 'jpg', 'gif', 'png'], true)) {
             $this->updatePreviewPicture($entry, $content['url']);
         }