修改 bug

niucloud/app/service/admin/document/DocumentTemplateService.php

@@ -1791,6 +1791,9 @@ class DocumentTemplateService extends BaseAdminService
                     'file_size' => filesize($outputPath)
                 ]);
 
+                // 处理文档中的URL图片（第二次处理）
+                $this->processUrlImagesInDocument($outputPath, $fillValues);
+
                 return true;
 
             } finally {
@@ -1818,18 +1821,24 @@ class DocumentTemplateService extends BaseAdminService
     private function replaceXmlPlaceholders(string $xmlContent, array $fillValues): string
     {
         $modifiedContent = $xmlContent;
+        
+        // 首先清理被格式化标签分割的占位符
+        $modifiedContent = $this->cleanBrokenPlaceholdersInXml($modifiedContent);
+        
         $replacementCount = 0;
 
         foreach ($fillValues as $placeholder => $value) {
-            // 确保占位符格式正确
+            // 使用正则表达式匹配占位符，支持空格、换行符、制表符
-            $searchPattern = '{{' . $placeholder . '}}';
+            // 模式：{{ + 任意空白字符 + placeholder + 任意空白字符 + }}
+            $escapedPlaceholder = preg_quote($placeholder, '/');
+            $searchPattern = '/\{\{\s*' . $escapedPlaceholder . '\s*\}\}/';
             
             // 转义特殊字符，确保安全的XML替换
             $safeValue = htmlspecialchars((string)$value, ENT_XML1, 'UTF-8');
             
-            // 进行替换
+            // 使用正则替换
             $beforeLength = strlen($modifiedContent);
-            $modifiedContent = str_replace($searchPattern, $safeValue, $modifiedContent, $count);
+            $modifiedContent = preg_replace($searchPattern, $safeValue, $modifiedContent, -1, $count);
             $afterLength = strlen($modifiedContent);
             
             if ($count > 0) {
@@ -1857,6 +1866,234 @@ class DocumentTemplateService extends BaseAdminService
         return $modifiedContent;
     }
 
+    /**
+     * 清理XML中被格式化标签分割的占位符
+     * @param string $xmlContent
+     * @return string
+     */
+    private function cleanBrokenPlaceholdersInXml(string $xmlContent): string
+    {
+        $cleanedContent = $xmlContent;
+        
+        Log::info('开始清理分割的占位符');
+        
+        // 多阶段清理策略：从简单到复杂
+        
+        // 第一阶段：处理完整的双大括号分割情况
+        $cleanedContent = $this->fixCompleteBracketSplits($cleanedContent);
+        
+        // 第二阶段：处理单个大括号分割情况 
+        $cleanedContent = $this->fixSingleBracketSplits($cleanedContent);
+        
+        // 第三阶段：通用清理，移除占位符内部的XML标签
+        $cleanedContent = $this->generalPlaceholderCleanup($cleanedContent);
+        
+        // 第四阶段：最终验证和修复
+        $cleanedContent = $this->finalPlaceholderValidation($cleanedContent);
+        
+        Log::info('占位符清理完成');
+        
+        return $cleanedContent;
+    }
+
+    /**
+     * 修复完整双大括号被分割的情况
+     * @param string $content
+     * @return string
+     */
+    private function fixCompleteBracketSplits(string $content): string
+    {
+        Log::info('阶段1：修复完整双大括号分割');
+        
+        $patterns = [
+            // 模式1: {{</w:t>...<w:t>内容}}
+            '/\{\{<\/w:t>.*?<w:t[^>]*>([^<]*)\}\}/',
+            
+            // 模式2: {{</w:t></w:r><w:r>...<w:t>内容}}  
+            '/\{\{<\/w:t><\/w:r><w:r[^>]*>.*?<w:t[^>]*>([^<]*)\}\}/',
+            
+            // 模式3: 包含rPr格式标签的复杂嵌套
+            '/\{\{<\/w:t><\/w:r><w:r[^>]*><w:rPr>.*?<\/w:rPr><w:t[^>]*>([^<]*)\}\}/'
+        ];
+        
+        foreach ($patterns as $index => $pattern) {
+            $content = preg_replace_callback($pattern, function($matches) use ($index) {
+                $placeholderContent = $matches[1];
+                $result = '{{' . $placeholderContent . '}}';
+                
+                Log::info('修复完整双大括号分割', [
+                    'pattern_index' => $index + 1,
+                    'original' => substr($matches[0], 0, 100) . '...',
+                    'fixed' => $result,
+                    'placeholder_content' => $placeholderContent
+                ]);
+                
+                return $result;
+            }, $content);
+        }
+        
+        return $content;
+    }
+
+    /**
+     * 修复单个大括号被分割的情况
+     * @param string $content
+     * @return string
+     */
+    private function fixSingleBracketSplits(string $content): string
+    {
+        Log::info('阶段2：修复单个大括号分割');
+        
+        // 处理左大括号被分割：{</w:t>...<w:t>{内容}}
+        $leftBracketPatterns = [
+            // 标准模式：{</w:t></w:r><w:r>...<w:t>{内容}}
+            '/\{<\/w:t><\/w:r><w:r[^>]*>.*?<w:t[^>]*>\{([^}]*)\}\}/',
+            
+            // 包含rPr的复杂模式
+            '/\{<\/w:t><\/w:r><w:r[^>]*><w:rPr>.*?<\/w:rPr><w:t[^>]*>\{([^}]*)\}\}/',
+            
+            // 简单模式：{</w:t>...<w:t>{内容}}
+            '/\{<\/w:t>.*?<w:t[^>]*>\{([^}]*)\}\}/'
+        ];
+        
+        foreach ($leftBracketPatterns as $index => $pattern) {
+            $content = preg_replace_callback($pattern, function($matches) use ($index) {
+                $placeholderContent = $matches[1];
+                $result = '{{' . $placeholderContent . '}}';
+                
+                Log::info('修复左大括号分割', [
+                    'pattern_index' => $index + 1,
+                    'original' => substr($matches[0], 0, 100) . '...',
+                    'fixed' => $result,
+                    'placeholder_content' => $placeholderContent
+                ]);
+                
+                return $result;
+            }, $content);
+        }
+        
+        // 处理右大括号被分割：{{内容}</w:t>...<w:t>}
+        $rightBracketPatterns = [
+            // 标准模式：{{内容}</w:t></w:r><w:r>...<w:t>}
+            '/\{\{([^}]*)\}<\/w:t><\/w:r><w:r[^>]*>.*?<w:t[^>]*>\}/',
+            
+            // 包含rPr的复杂模式
+            '/\{\{([^}]*)\}<\/w:t><\/w:r><w:r[^>]*><w:rPr>.*?<\/w:rPr><w:t[^>]*>\}/',
+            
+            // 简单模式：{{内容}</w:t>...<w:t>}
+            '/\{\{([^}]*)\}<\/w:t>.*?<w:t[^>]*>\}/'
+        ];
+        
+        foreach ($rightBracketPatterns as $index => $pattern) {
+            $content = preg_replace_callback($pattern, function($matches) use ($index) {
+                $placeholderContent = $matches[1];
+                $result = '{{' . $placeholderContent . '}}';
+                
+                Log::info('修复右大括号分割', [
+                    'pattern_index' => $index + 1,
+                    'original' => substr($matches[0], 0, 100) . '...',
+                    'fixed' => $result,
+                    'placeholder_content' => $placeholderContent
+                ]);
+                
+                return $result;
+            }, $content);
+        }
+        
+        return $content;
+    }
+
+    /**
+     * 通用占位符清理：移除占位符内部的XML标签
+     * @param string $content
+     * @return string
+     */
+    private function generalPlaceholderCleanup(string $content): string
+    {
+        Log::info('阶段3：通用占位符清理');
+        
+        // 匹配并清理占位符内部的XML标签
+        $generalPattern = '/\{\{([^}]*?)<[^>]*?>([^}]*?)\}\}/';
+        
+        $iterations = 0;
+        $maxIterations = 10; // 防止无限循环
+        
+        do {
+            $beforeLength = strlen($content);
+            $iterations++;
+            
+            $content = preg_replace_callback($generalPattern, function($matches) {
+                // 移除XML标签，只保留纯文本
+                $content = $matches[1] . $matches[2];
+                $cleanContent = preg_replace('/<[^>]*?>/', '', $content);
+                $result = '{{' . $cleanContent . '}}';
+                
+                Log::info('通用占位符清理', [
+                    'original' => substr($matches[0], 0, 50) . '...',
+                    'cleaned' => $result,
+                    'content' => $cleanContent
+                ]);
+                
+                return $result;
+            }, $content);
+            
+            $afterLength = strlen($content);
+            
+            Log::info('通用清理迭代', [
+                'iteration' => $iterations,
+                'length_change' => $afterLength - $beforeLength,
+                'has_more_matches' => preg_match($generalPattern, $content)
+            ]);
+            
+        } while ($beforeLength !== $afterLength && 
+                 preg_match($generalPattern, $content) && 
+                 $iterations < $maxIterations);
+        
+        return $content;
+    }
+
+    /**
+     * 最终占位符验证和修复
+     * @param string $content
+     * @return string
+     */
+    private function finalPlaceholderValidation(string $content): string
+    {
+        Log::info('阶段4：最终验证和修复');
+        
+        // 查找所有可能的占位符模式
+        if (preg_match_all('/\{[^{}]*\}/', $content, $matches)) {
+            foreach ($matches[0] as $match) {
+                // 检查是否为不完整的占位符（只有一个大括号）
+                if (preg_match('/^\{[^{}]+\}$/', $match)) {
+                    // 查看前后文是否有对应的大括号
+                    $singleBracketPattern = '/' . preg_quote($match, '/') . '/';
+                    
+                    // 尝试修复为双大括号
+                    $possibleFix = '{' . $match . '}';
+                    
+                    Log::info('发现可能的不完整占位符', [
+                        'found' => $match,
+                        'possible_fix' => $possibleFix
+                    ]);
+                }
+            }
+        }
+        
+        // 查找并统计最终的占位符数量
+        $finalPlaceholders = [];
+        if (preg_match_all('/\{\{([^}]+)\}\}/', $content, $matches)) {
+            $finalPlaceholders = $matches[1];
+        }
+        
+        Log::info('最终占位符统计', [
+            'count' => count($finalPlaceholders),
+            'placeholders' => $finalPlaceholders
+        ]);
+        
+        return $content;
+    }
+
     /**
      * 递归添加目录到ZIP文件
      * @param \ZipArchive $zip ZIP文件对象
@@ -2134,4 +2371,436 @@ class DocumentTemplateService extends BaseAdminService
 
         return null;
     }
+
+    /**
+     * 处理Word文档中的URL图片，将URL转换为嵌入的图片附件
+     * @param string $documentPath Word文档路径
+     * @param array $fillValues 填充值数组（用于识别哪些是图片URL）
+     * @return bool
+     */
+    private function processUrlImagesInDocument(string $documentPath, array $fillValues): bool
+    {
+        try {
+            Log::info('开始处理Word文档中的URL图片', [
+                'document_path' => $documentPath,
+                'fill_values_count' => count($fillValues)
+            ]);
+
+            // 创建临时工作目录
+            $tempDir = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'word_url_processing_' . uniqid();
+            if (!mkdir($tempDir, 0755, true)) {
+                throw new \Exception('无法创建临时工作目录');
+            }
+
+            try {
+                // 1. 解压Word文档到临时目录
+                $zip = new \ZipArchive();
+                $result = $zip->open($documentPath);
+                
+                if ($result !== TRUE) {
+                    throw new \Exception('无法打开Word文档，错误代码：' . $result);
+                }
+
+                if (!$zip->extractTo($tempDir)) {
+                    $zip->close();
+                    throw new \Exception('无法解压Word文档');
+                }
+                $zip->close();
+
+                // 2. 读取document.xml文件
+                $documentXmlPath = $tempDir . DIRECTORY_SEPARATOR . 'word' . DIRECTORY_SEPARATOR . 'document.xml';
+                if (!file_exists($documentXmlPath)) {
+                    throw new \Exception('Word文档缺少document.xml文件');
+                }
+
+                $xmlContent = file_get_contents($documentXmlPath);
+                if ($xmlContent === false) {
+                    throw new \Exception('无法读取document.xml文件内容');
+                }
+
+                // 3. 查找并处理URL图片
+                $urlImageMap = $this->findUrlImagesInFillValues($fillValues);
+                
+                if (empty($urlImageMap)) {
+                    Log::info('未找到需要处理的URL图片');
+                    return true;
+                }
+
+                // 4. 下载图片并创建关系文件
+                $imageRelations = $this->downloadAndCreateImageRelations($urlImageMap, $tempDir);
+
+                if (empty($imageRelations)) {
+                    Log::warning('没有成功下载任何图片');
+                    return true;
+                }
+
+                // 5. 更新document.xml中的URL为图片引用
+                $modifiedXmlContent = $this->replaceUrlsWithImageReferences($xmlContent, $imageRelations);
+
+                // 6. 更新关系文件
+                $this->updateDocumentRelations($tempDir, $imageRelations);
+
+                // 7. 写回修改后的document.xml
+                if (file_put_contents($documentXmlPath, $modifiedXmlContent) === false) {
+                    throw new \Exception('无法写入修改后的document.xml');
+                }
+
+                // 8. 重新打包Word文档
+                $newZip = new \ZipArchive();
+                $result = $newZip->open($documentPath, \ZipArchive::CREATE | \ZipArchive::OVERWRITE);
+                
+                if ($result !== TRUE) {
+                    throw new \Exception('无法重新打开Word文件，错误代码：' . $result);
+                }
+
+                // 递归添加所有文件到ZIP
+                $this->addDirectoryToZip($newZip, $tempDir, '');
+
+                if (!$newZip->close()) {
+                    throw new \Exception('无法保存修改后的Word文件');
+                }
+
+                Log::info('URL图片处理完成', [
+                    'processed_images' => count($imageRelations),
+                    'document_size' => filesize($documentPath)
+                ]);
+
+                return true;
+
+            } finally {
+                // 清理临时目录
+                $this->removeDirectory($tempDir);
+            }
+
+        } catch (\Exception $e) {
+            Log::error('处理Word文档URL图片失败', [
+                'document_path' => $documentPath,
+                'error' => $e->getMessage(),
+                'trace' => $e->getTraceAsString()
+            ]);
+            // 即使失败也不影响主流程
+            return false;
+        }
+    }
+
+    /**
+     * 从填充值中查找URL图片
+     * @param array $fillValues
+     * @return array
+     */
+    private function findUrlImagesInFillValues(array $fillValues): array
+    {
+        $urlImages = [];
+        
+        foreach ($fillValues as $placeholder => $value) {
+            if (is_string($value)) {
+                // 检查是否为HTTP/HTTPS URL
+                if (preg_match('/^https?:\/\/.+\.(jpg|jpeg|png|gif|webp|bmp)(\?.*)?$/i', $value)) {
+                    $urlImages[$placeholder] = $value;
+                    Log::info('发现URL图片', [
+                        'placeholder' => $placeholder,
+                        'url' => $value
+                    ]);
+                }
+            }
+        }
+
+        return $urlImages;
+    }
+
+    /**
+     * 下载图片并创建图片关系
+     * @param array $urlImageMap
+     * @param string $tempDir
+     * @return array
+     */
+    private function downloadAndCreateImageRelations(array $urlImageMap, string $tempDir): array
+    {
+        $imageRelations = [];
+        $relationId = 1000; // 起始关系ID，避免与现有关系冲突
+        
+        // 确保media目录存在
+        $mediaDir = $tempDir . DIRECTORY_SEPARATOR . 'word' . DIRECTORY_SEPARATOR . 'media';
+        if (!is_dir($mediaDir)) {
+            mkdir($mediaDir, 0755, true);
+        }
+
+        foreach ($urlImageMap as $placeholder => $url) {
+            try {
+                // 下载图片
+                $imageData = $this->downloadImageData($url);
+                if (!$imageData) {
+                    continue;
+                }
+
+                // 确定文件扩展名
+                $pathInfo = pathinfo(parse_url($url, PHP_URL_PATH));
+                $extension = strtolower($pathInfo['extension'] ?? 'jpg');
+                
+                // 验证图片数据
+                $tempImagePath = tempnam(sys_get_temp_dir(), 'img_validate_');
+                file_put_contents($tempImagePath, $imageData);
+                $imageInfo = getimagesize($tempImagePath);
+                unlink($tempImagePath);
+                
+                if ($imageInfo === false) {
+                    Log::warning('下载的文件不是有效图片', ['url' => $url]);
+                    continue;
+                }
+
+                // 生成文件名和关系ID
+                $fileName = 'image' . $relationId . '.' . $extension;
+                $filePath = $mediaDir . DIRECTORY_SEPARATOR . $fileName;
+                $relationIdStr = 'rId' . $relationId;
+
+                // 保存图片文件
+                if (file_put_contents($filePath, $imageData) === false) {
+                    Log::error('保存图片文件失败', ['file_path' => $filePath]);
+                    continue;
+                }
+
+                // 记录图片关系信息
+                $imageRelations[$placeholder] = [
+                    'url' => $url,
+                    'relation_id' => $relationIdStr,
+                    'file_name' => $fileName,
+                    'file_path' => $filePath,
+                    'width' => $imageInfo[0],
+                    'height' => $imageInfo[1],
+                    'mime_type' => $imageInfo['mime']
+                ];
+
+                $relationId++;
+
+                Log::info('图片下载成功', [
+                    'placeholder' => $placeholder,
+                    'url' => $url,
+                    'file_name' => $fileName,
+                    'size' => $imageInfo[0] . 'x' . $imageInfo[1]
+                ]);
+
+            } catch (\Exception $e) {
+                Log::error('处理图片失败', [
+                    'placeholder' => $placeholder,
+                    'url' => $url,
+                    'error' => $e->getMessage()
+                ]);
+            }
+        }
+
+        return $imageRelations;
+    }
+
+    /**
+     * 下载图片数据
+     * @param string $url
+     * @return string|false
+     */
+    private function downloadImageData(string $url)
+    {
+        try {
+            $context = stream_context_create([
+                'http' => [
+                    'timeout' => 30,
+                    'user_agent' => 'Mozilla/5.0 (compatible; Document Generator)',
+                    'follow_location' => true,
+                    'max_redirects' => 3
+                ]
+            ]);
+
+            return file_get_contents($url, false, $context);
+        } catch (\Exception $e) {
+            Log::error('下载图片数据失败：' . $e->getMessage(), ['url' => $url]);
+            return false;
+        }
+    }
+
+    /**
+     * 将XML中的URL替换为图片引用
+     * @param string $xmlContent
+     * @param array $imageRelations
+     * @return string
+     */
+    private function replaceUrlsWithImageReferences(string $xmlContent, array $imageRelations): string
+    {
+        $modifiedContent = $xmlContent;
+
+        foreach ($imageRelations as $placeholder => $relation) {
+            $url = $relation['url'];
+            
+            // 构建图片引用XML
+            $imageXml = $this->generateImageXml($relation);
+            
+            // 替换URL为图片引用
+            $modifiedContent = str_replace($url, $imageXml, $modifiedContent);
+            
+            Log::info('URL替换为图片引用', [
+                'placeholder' => $placeholder,
+                'url' => $url,
+                'relation_id' => $relation['relation_id']
+            ]);
+        }
+
+        return $modifiedContent;
+    }
+
+    /**
+     * 生成图片引用XML
+     * @param array $relation
+     * @return string
+     */
+    private function generateImageXml(array $relation): string
+    {
+        // 强制限制最大尺寸
+        $maxWidth = 40;  // 最大宽度（像素）
+        $maxHeight = 30; // 最大高度（像素）
+        
+        $originalWidth = $relation['width'];
+        $originalHeight = $relation['height'];
+        
+        Log::info('图片原始尺寸', [
+            'original_width' => $originalWidth,
+            'original_height' => $originalHeight,
+            'max_width' => $maxWidth,
+            'max_height' => $maxHeight
+        ]);
+        
+        // 计算缩放比例 - 如果图片超过最大尺寸就缩放，否则使用较小的固定尺寸
+        $displayWidth = $maxWidth;
+        $displayHeight = $maxHeight;
+        
+        if ($originalWidth > 0 && $originalHeight > 0) {
+            // 计算保持宽高比的缩放
+            $widthRatio = $maxWidth / $originalWidth;
+            $heightRatio = $maxHeight / $originalHeight;
+            $ratio = min($widthRatio, $heightRatio); // 移除1的限制，允许缩放
+            
+            $displayWidth = (int)($originalWidth * $ratio);
+            $displayHeight = (int)($originalHeight * $ratio);
+            
+            // 确保不超过最大尺寸
+            $displayWidth = min($displayWidth, $maxWidth);
+            $displayHeight = min($displayHeight, $maxHeight);
+        }
+        
+        Log::info('图片显示尺寸', [
+            'display_width' => $displayWidth,
+            'display_height' => $displayHeight,
+            'ratio' => isset($ratio) ? $ratio : 'fixed'
+        ]);
+        
+        // Word中的尺寸单位转换（像素转EMU）
+        $emuWidth = $displayWidth * 9525;  // 1像素 = 9525 EMU
+        $emuHeight = $displayHeight * 9525;
+        
+        $relationId = $relation['relation_id'];
+        
+        return '<w:r>
+    <w:drawing>
+        <wp:inline distT="0" distB="0" distL="0" distR="0">
+            <wp:extent cx="' . $emuWidth . '" cy="' . $emuHeight . '"/>
+            <wp:effectExtent l="0" t="0" r="0" b="0"/>
+            <wp:docPr id="1" name="图片"/>
+            <wp:cNvGraphicFramePr>
+                <a:graphicFrameLocks xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" noChangeAspect="1"/>
+            </wp:cNvGraphicFramePr>
+            <a:graphic xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main">
+                <a:graphicData uri="http://schemas.openxmlformats.org/drawingml/2006/picture">
+                    <pic:pic xmlns:pic="http://schemas.openxmlformats.org/drawingml/2006/picture">
+                        <pic:nvPicPr>
+                            <pic:cNvPr id="1" name="图片"/>
+                            <pic:cNvPicPr/>
+                        </pic:nvPicPr>
+                        <pic:blipFill>
+                            <a:blip r:embed="' . $relationId . '"/>
+                            <a:stretch>
+                                <a:fillRect/>
+                            </a:stretch>
+                        </pic:blipFill>
+                        <pic:spPr>
+                            <a:xfrm>
+                                <a:off x="0" y="0"/>
+                                <a:ext cx="' . $emuWidth . '" cy="' . $emuHeight . '"/>
+                            </a:xfrm>
+                            <a:prstGeom prst="rect">
+                                <a:avLst/>
+                            </a:prstGeom>
+                        </pic:spPr>
+                    </pic:pic>
+                </a:graphicData>
+            </a:graphic>
+        </wp:inline>
+    </w:drawing>
+</w:r>';
+    }
+
+    /**
+     * 更新文档关系文件
+     * @param string $tempDir
+     * @param array $imageRelations
+     * @return void
+     */
+    private function updateDocumentRelations(string $tempDir, array $imageRelations): void
+    {
+        try {
+            $relsPath = $tempDir . DIRECTORY_SEPARATOR . 'word' . DIRECTORY_SEPARATOR . '_rels' . DIRECTORY_SEPARATOR . 'document.xml.rels';
+            
+            // 如果关系文件不存在，创建基础关系文件
+            if (!file_exists($relsPath)) {
+                $relsDir = dirname($relsPath);
+                if (!is_dir($relsDir)) {
+                    mkdir($relsDir, 0755, true);
+                }
+                
+                $baseRelsContent = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+</Relationships>';
+                file_put_contents($relsPath, $baseRelsContent);
+            }
+
+            // 读取现有关系文件
+            $relsContent = file_get_contents($relsPath);
+            if ($relsContent === false) {
+                throw new \Exception('无法读取关系文件');
+            }
+
+            // 解析XML
+            $dom = new \DOMDocument('1.0', 'UTF-8');
+            $dom->preserveWhiteSpace = false;
+            $dom->formatOutput = true;
+            
+            if (!$dom->loadXML($relsContent)) {
+                throw new \Exception('无法解析关系文件XML');
+            }
+
+            $relationshipsElement = $dom->documentElement;
+
+            // 添加图片关系
+            foreach ($imageRelations as $relation) {
+                $relationshipElement = $dom->createElement('Relationship');
+                $relationshipElement->setAttribute('Id', $relation['relation_id']);
+                $relationshipElement->setAttribute('Type', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/image');
+                $relationshipElement->setAttribute('Target', 'media/' . $relation['file_name']);
+                
+                $relationshipsElement->appendChild($relationshipElement);
+            }
+
+            // 写回关系文件
+            if (file_put_contents($relsPath, $dom->saveXML()) === false) {
+                throw new \Exception('无法保存关系文件');
+            }
+
+            Log::info('文档关系文件更新成功', [
+                'relations_added' => count($imageRelations),
+                'rels_path' => $relsPath
+            ]);
+
+        } catch (\Exception $e) {
+            Log::error('更新文档关系文件失败', [
+                'error' => $e->getMessage(),
+                'temp_dir' => $tempDir
+            ]);
+            throw $e;
+        }
+    }
 }