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为百度UEDITOR编辑器上传图片添加水印

分类: IT文章 • 2022-05-04 17:27:56

为百度UEDITOR编辑器上传图片添加水印

form:http://www.uphtm.com/php/255.html

UEDITOR编辑器上传图片是自动提取的，但是图片没有水印功能，下面小编和各位一起来看看。

UEditor编辑器没有上传图片加水印的功能，需要进行二次开发，本例是在PHPCMS系统中对百度编辑器进行二次开发，添加上传图片加水印功能。

首先打开UEditor编辑器文件目录的php文件夹，打开Uploader.class.php，把PHPCMS添加水印的方法复制过来，加到这个类所有成员方法最后面，然后进行修改如下：

  1. //图片加水印
  2. public function watermark($source, $target = '', $w_pos = '', $w_img = '', $w_text = '99danji',$w_font = 8, $w_color = '#ff0000') {
  3. $this->w_img = 'watermark.png';
  4. $this->w_pos = 9;
  5. $this->w_minwidth = 400;
  6. $this->w_minheight = 200;
  7. $this->w_quality = 80;
  8. $this->w_pct = 85;
  10. $w_pos = $w_pos ? $w_pos : $this->w_pos;
  11. $w_img = $w_img ? $w_img : $this->w_img;
  12. //if(!$this->watermark_enable || !$this->check($source)) return false;
  13. if(!$target) $target = $source;
  14. //$w_img = PHPCMS_PATH.$w_img;
  15. //define('WWW_PATH', dirname(dirname(dirname(__FILE__)));
  16. $w_img = '../../../images/water/'.$w_img;
  17. $source_info = getimagesize($source);
  18. $source_w = $source_info[0];
  19. $source_h = $source_info[1];
  20. //if($source_w < $this->w_minwidth || $source_h < $this->w_minheight) return false;
  21. switch($source_info[2]) {
  22. case 1 :
  23. $source_img = imagecreatefromgif($source);
  24. break;
  25. case 2 :
  26. $source_img = imagecreatefromjpeg($source);
  27. break;
  28. case 3 :
  29. $source_img = imagecreatefrompng($source);
  30. break;
  31. default :
  32. return false;
  33. }
  34. if(!empty($w_img) && file_exists($w_img)) {
  35. $ifwaterimage = 1;
  36. $water_info = getimagesize($w_img);
  37. $width = $water_info[0];
  38. $height = $water_info[1];
  39. switch($water_info[2]) {
  40. case 1 :
  41. $water_img = imagecreatefromgif($w_img);
  42. break;
  43. case 2 :
  44. $water_img = imagecreatefromjpeg($w_img);
  45. break;
  46. case 3 :
  47. $water_img = imagecreatefrompng($w_img);
  48. break;
  49. default :
  50. return;
  51. }
  52. } else {
  53. $ifwaterimage = 0;
  54. $temp = imagettfbbox(ceil($w_font*2.5), 0, PC_PATH.'libs/data/font/elephant.ttf', $w_text);
  55. $width = $temp[2] - $temp[6];
  56. $height = $temp[3] - $temp[7];
  57. unset($temp);
  58. }
  59. switch($w_pos) {
  60. case 1:
  61. $wx = 5;
  62. $wy = 5;
  63. break;
  64. case 2:
  65. $wx = ($source_w - $width) / 2;
  66. $wy = 0;
  67. break;
  68. case 3:
  69. $wx = $source_w - $width;
  70. $wy = 0;
  71. break;
  72. case 4:
  73. $wx = 0;
  74. $wy = ($source_h - $height) / 2;
  75. break;
  76. case 5:
  77. $wx = ($source_w - $width) / 2;
  78. $wy = ($source_h - $height) / 2;
  79. break;
  80. case 6:
  81. $wx = $source_w - $width;
  82. $wy = ($source_h - $height) / 2;
  83. break;
  84. case 7:
  85. $wx = 0;
  86. $wy = $source_h - $height;
  87. break;
  88. case 8:
  89. $wx = ($source_w - $width) / 2;
  90. $wy = $source_h - $height;
  91. break;
  92. case 9:
  93. $wx = $source_w - $width;
  94. $wy = $source_h - $height;
  95. break;
  96. case 10:
  97. $wx = rand(0,($source_w - $width));
  98. $wy = rand(0,($source_h - $height));
  99. break;
  100. default:
  101. $wx = rand(0,($source_w - $width));
  102. $wy = rand(0,($source_h - $height));
  103. break;
  104. }
  105. if($ifwaterimage) {
  106. if($water_info[2] == 3) {
  107. imagecopy($source_img, $water_img, $wx, $wy, 0, 0, $width, $height);
  108. } else {
  109. imagecopymerge($source_img, $water_img, $wx, $wy, 0, 0, $width, $height, $this->w_pct);
  110. }
  111. } else {
  112. if(!empty($w_color) && (strlen($w_color)==7)) {
  113. $r = hexdec(substr($w_color,1,2));
  114. $g = hexdec(substr($w_color,3,2));
  115. $b = hexdec(substr($w_color,5));
  116. } else {
  117. return;
  118. }
  119. imagestring($source_img,$w_font,$wx,$wy,$w_text,imagecolorallocate($source_img,$r,$g,$b));
  120. }
  122. switch($source_info[2]) {
  123. case 1 :
  124. imagegif($source_img, $target);
  125. break;
  126. case 2 :
  127. imagejpeg($source_img, $target, $this->w_quality);
  128. break;
  129. case 3 :
  130. imagepng($source_img, $target);
  131. break;
  132. default :
  133. return;
  134. }
  136. if(isset($water_info)) {
  137. unset($water_info);
  138. }
  139. if(isset($water_img)) {
  140. imagedestroy($water_img);
  141. }
  142. unset($source_info);
  143. imagedestroy($source_img);
  144. return true;
  145. }
  147. public function check($image) {
  148. return extension_loaded('gd') && PReg_match("/\.(jpg|jpeg|gif|png)/i", $image, $m) && file_exists($image) && function_exists('imagecreatefrom'.($m[1] == 'jpg' ? 'jpeg' : $m[1]));
  149. }

对比我修改的部分，由于phpcms水印可以在后台管理设置，phpcms自带的水印方法通过读取配置文件获取路径，和读取数据库设置获取参数设置，那么这些地方需要手动进行设置。

对了，在upFile方法还要添加一段函数：

  1. if ($this->watermark) {
  2. $this->watermark($this->filePath,$this->filePath);
  3. }

然后打开UEditor百度编辑器php目录下的action_upload.php文件，加上是否添加水印的参数：

  1. /* 上传配置 */
  2. $base64 = "upload";
  3. switch (htmlspecialchars($_GET['action'])) {
  4. case 'uploadimage':
  5. $config = array(
  6. "pathFormat" => $CONFIG['imagePathFormat'],
  7. "maxSize" => $CONFIG['imageMaxSize'],
  8. "allowFiles" => $CONFIG['imageAllowFiles']
  9. );
  10. $fieldName = $CONFIG['imageFieldName'];
  11. $watermark = true;
  12. break;

然后在后面还有一句要改成：

  1. /* 生成上传实例对象并完成上传 */
  2. $up = new Uploader($fieldName, $config, $base64, $watermark);

这样就大功告成了，本文主要是提供思路和参考。

form:http://www.uphtm.com/php/255.html



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