add exif and iptc support

conf/app.php

@@ -3,8 +3,8 @@
  * Config
  */
 $configs = array(
-    'version' => '0.3.8',
+    'version' => '0.3.9',
-    'releaseDate' => '2024-10-31',
+    'releaseDate' => '2024-11-09',
     'showVersion' => false,     //默认不显示版本号和发布日期
 
     'default_timezone' => 'Asia/Hong_Kong',      //timezone, check more: https://www.php.net/manual/en/timezones.asia.php

lib/DirScanner.php

@@ -27,6 +27,12 @@ Class DirScanner {
         'description' => '描述',
         'keywords' => '关键词',
         'snapshot' => '快照图片',
+
+        'original_ctime' => '照片拍摄时间',
+
+        //TODO: 待启用
+        'exif' => '照片EXIF信息',
+        'iptc' => '照片IPTC信息',
     );
     private $rootDir;                               //当前扫描的根目录
     private $webRoot = '/content/';                 //网站静态文件相对路径的根目录
@@ -53,6 +59,16 @@ Class DirScanner {
         'm3u8',    //视频
     );
 
+    protected $exifSupportFileExtensions = array(
+        'jpg',     //图片
+        'jpeg',    //图片
+    );
+
+    protected $iptcSupportFileExtensions = array(
+        'jpg',     //图片
+        'jpeg',    //图片
+    );
+
     //暂未使用
     /*
     protected $maxReadFilesize = array(                  //默认每种文件读取内容最大大小
@@ -230,6 +246,49 @@ Class DirScanner {
         return $data;
     }
 
+    //format: Ymd
+    //example: 20240322
+    //return: timestamp
+    private function getCreateDateFromIPTCMeta($realpath) {
+        $createTime = 0;
+
+        try {
+            if (function_exists('getimagesize') && function_exists('iptcparse')) {
+                $size = getimagesize($realpath, $info);
+                if(!empty($info['APP13'])) {
+                    $iptc = iptcparse($info['APP13']);
+                    if (!empty($iptc['2#055'])) {
+                        $createTime = strtotime($iptc['2#055'][0]);
+                    }
+                }
+            }
+        }catch(Exception $e) {
+            //do nothing
+        }
+
+        return $createTime;
+    }
+
+    //format: Y:m:d H:i:s
+    //example: 2024:03:22 00:23:02
+    //return: timestamp
+    private function getCreateDateFromExifMeta($realpath) {
+        $createTime = 0;
+
+        try {
+            if (function_exists('exif_read_data')) {
+                $exif = exif_read_data($realpath, 0, true);
+                if(!empty($exif['EXIF']['DateTimeOriginal'])) {
+                    $createTime = strtotime($exif['EXIF']['DateTimeOriginal']);
+                }
+            }
+        }catch(Exception $e) {
+            //do nothing
+        }
+
+        return $createTime;
+    }
+
     //根据路径生成文件数组，兼容URL文件
     private function getFileData($realpath) {
         $id = $this->getId($realpath);
@@ -255,6 +314,15 @@ Class DirScanner {
 
         if ($extension == 'url') {
             $data['shortcut'] = $this->parseShortCuts($realpath, $filename);
+        }else if (in_array($extension, $this->exifSupportFileExtensions) || in_array($extension, $this->iptcSupportFileExtensions)) {
+            $photo_create_time = $this->getCreateDateFromExifMeta($realpath);
+            if ($photo_create_time == 0) {
+                $photo_create_time = $this->getCreateDateFromIPTCMeta($realpath);
+            }
+
+            if ($photo_create_time > 0) {
+                $data['original_ctime'] = $photo_create_time;
+            }
         }
 
         return $data;

themes/beauty/views/site/index.php

@@ -326,9 +326,13 @@ eof;
                 }
 
                 //图片、视频显示文件修改日期
-                $title = Common::getDateFromString($file['filename']);
+                if (!empty($file['original_ctime'])) {      //优先使用照片的拍摄日期
-                if (empty($title) && !empty($file['fstat']['mtime']) && !empty($file['fstat']['ctime'])) {
+                    $title = '摄于' . date('Y-m-d', $file['original_ctime']);
-                    $title = date('Y-m-d', min($file['fstat']['mtime'], $file['fstat']['ctime']));
+                }else {
+                    $title = Common::getDateFromString($file['filename']);      //根据文件名获取拍摄日期
+                    if (empty($title) && !empty($file['fstat']['mtime']) && !empty($file['fstat']['ctime'])) {
+                        $title = date('Y-m-d', min($file['fstat']['mtime'], $file['fstat']['ctime']));
+                    }
                 }
 
                 if (in_array($file['extension'], $imgExts)) {