From 4c39241d3cf799bf3e44d8480da90e22be3a1f3c Mon Sep 17 00:00:00 2001
From: alma <alma@governance-labs.org>
Date: Wed, 30 Apr 2025 20:32:24 +0200
Subject: [PATCH] courrier formatting

---
 components/email/EmailPreview.tsx | 45 +++++++++++-----
 lib/utils/email-content.ts        | 86 ++++++++++++++++++++++++++++---
 2 files changed, 110 insertions(+), 21 deletions(-)

diff --git a/components/email/EmailPreview.tsx b/components/email/EmailPreview.tsx
index fc4bbc9b..2ce03bcf 100644
--- a/components/email/EmailPreview.tsx
+++ b/components/email/EmailPreview.tsx
@@ -222,27 +222,46 @@ export default function EmailPreview({ email, loading = false, onReply }: EmailP
           <div 
             ref={editorRef}
             contentEditable={false}
-            className="w-full email-content-container"
+            className="w-full email-content-container rounded-md overflow-hidden"
             style={{
               backgroundColor: '#ffffff',
-              borderRadius: '4px',
               border: '1px solid #e2e8f0',
               boxShadow: '0 1px 3px rgba(0,0,0,0.05)',
-              overflow: 'hidden',
               minHeight: '300px'
             }}
           >
-            <div 
-              className="email-content-body p-6"
-              style={{
-                fontFamily: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif',
-                fontSize: '15px',
-                lineHeight: '1.6',
-                color: '#1A202C'
-              }}
-              dangerouslySetInnerHTML={{ __html: formattedContent }}
-            />
+            <div className="email-content-body p-4 sm:p-6">
+              {formattedContent ? (
+                <div 
+                  className="email-content-rendered"
+                  dangerouslySetInnerHTML={{ __html: formattedContent }}
+                />
+              ) : (
+                <div className="email-content-empty py-8 text-center text-muted-foreground">
+                  <p>This email does not contain any content.</p>
+                </div>
+              )}
+            </div>
           </div>
+          
+          {process.env.NODE_ENV === 'development' && (
+            <details className="mt-6 text-xs text-muted-foreground border rounded-md p-2">
+              <summary className="cursor-pointer">Email Debug Info</summary>
+              <div className="mt-2 overflow-auto max-h-40">
+                <p><strong>Email ID:</strong> {email.id}</p>
+                <p><strong>Content Type:</strong> {
+                  typeof email.content === 'object' && email.content?.html 
+                    ? 'HTML' 
+                    : 'Plain Text'
+                }</p>
+                <p><strong>Content Size:</strong> {
+                  typeof email.content === 'object' 
+                    ? `HTML: ${email.content?.html?.length || 0} chars, Text: ${email.content?.text?.length || 0} chars`
+                    : `${typeof email.content === 'string' ? email.content.length : 0} chars`
+                }</p>
+              </div>
+            </details>
+          )}
         </div>
       </ScrollArea>
     </Card>
diff --git a/lib/utils/email-content.ts b/lib/utils/email-content.ts
index 0c30aa81..b6ceb09a 100644
--- a/lib/utils/email-content.ts
+++ b/lib/utils/email-content.ts
@@ -46,22 +46,50 @@ export function formatEmailContent(email: any): string {
       textContent = '';
     }
     
+    // Log what we found for debugging
+    console.log(`Email content detected: isHtml=${isHtml}, contentLength=${content.length}, textLength=${textContent.length}`);
+    
     // If we have HTML content, sanitize and standardize it
     if (isHtml && content) {
+      // Make sure we have a complete HTML structure
+      const hasHtmlTag = content.includes('<html');
+      const hasBodyTag = content.includes('<body');
+      
+      // Extract body content if we have a complete HTML document
+      if (hasHtmlTag && hasBodyTag) {
+        try {
+          // Create a DOM parser to extract just the body content
+          const parser = new DOMParser();
+          const doc = parser.parseFromString(content, 'text/html');
+          const bodyContent = doc.body.innerHTML;
+          
+          if (bodyContent) {
+            content = bodyContent;
+          }
+        } catch (error) {
+          // If extraction fails, continue with the original content
+          console.error('Error extracting body content:', error);
+        }
+      }
+      
       // Sanitize with industry-standard email tags and attributes
+      // Use a more permissive configuration for email HTML
       const sanitizedContent = DOMPurify.sanitize(content, {
         ADD_TAGS: [
           'style', 'table', 'thead', 'tbody', 'tfoot', 'tr', 'td', 'th', 
           'caption', 'col', 'colgroup', 'div', 'span', 'img', 'br', 'hr',
           'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'blockquote', 'pre',
           'ul', 'ol', 'li', 'dl', 'dt', 'dd', 'a', 'b', 'i', 'u', 'em',
-          'strong', 'del', 'ins', 'sub', 'sup', 'small', 'mark', 'q'
+          'strong', 'del', 'ins', 'sub', 'sup', 'small', 'mark', 'q',
+          'section', 'article', 'header', 'footer', 'aside', 'nav', 'figure',
+          'figcaption', 'address', 'main', 'center', 'font'
         ],
         ADD_ATTR: [
           'class', 'style', 'id', 'href', 'src', 'alt', 'title', 'width', 'height',
           'border', 'cellspacing', 'cellpadding', 'bgcolor', 'color', 'dir', 'lang',
           'align', 'valign', 'span', 'colspan', 'rowspan', 'target', 'rel',
-          'background', 'data-*'
+          'background', 'data-*', 'face', 'size', 'bgcolor', 'hspace', 'vspace',
+          'marginheight', 'marginwidth', 'frameborder'
         ],
         ALLOW_DATA_ATTR: true,
         WHOLE_DOCUMENT: false,
@@ -70,25 +98,62 @@ export function formatEmailContent(email: any): string {
         FORBID_ATTR: ['onerror', 'onload', 'onclick', 'onmouseover', 'onmouseout']
       });
       
+      // Fix common email client quirks
+      let fixedContent = sanitizedContent
+        // Fix for Outlook WebVML content
+        .replace(/<!--\[if\s+gte\s+mso/g, '<!--[if gte mso')
+        // Fix for broken image paths that might be relative
+        .replace(/(src|background)="(?!http|https|data|cid)/gi, '$1="https://');
+      
+      // Fix for inline image references (CID)
+      if (fixedContent.includes('cid:')) {
+        console.log('Email contains CID references - these cannot be displayed properly in the web UI');
+        // We can't actually render CID references in the web UI
+        // Just log a message for now - a more comprehensive fix would involve
+        // extracting and converting these images
+      }
+      
+      // Check for RTL content and set appropriate direction
+      const rtlLangPattern = /[\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC]/;
+      const containsRtlText = rtlLangPattern.test(textContent);
+      const dirAttribute = containsRtlText ? 'dir="rtl"' : 'dir="ltr"';
+      
       // Wrap the content in standard email container with responsive styling
       return `
-        <div class="email-content" style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; max-width: 100%; word-wrap: break-word;">
-          ${sanitizedContent}
+        <div class="email-content-wrapper" style="max-width: 100%; overflow-x: auto;">
+          <div class="email-content" ${dirAttribute} style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; max-width: 100%; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word;">
+            ${fixedContent}
+          </div>
         </div>
       `;
     } 
     // If we only have text content, format it properly
     else if (textContent) {
+      // Check for RTL content and set appropriate direction
+      const rtlLangPattern = /[\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC]/;
+      const containsRtlText = rtlLangPattern.test(textContent);
+      const dirAttribute = containsRtlText ? 'dir="rtl"' : 'dir="ltr"';
+      
+      // Escape HTML characters to prevent XSS
+      const escapedText = textContent
+        .replace(/&/g, '&amp;')
+        .replace(/</g, '&lt;')
+        .replace(/>/g, '&gt;')
+        .replace(/"/g, '&quot;')
+        .replace(/'/g, '&#039;');
+      
       // Format plain text with proper line breaks and paragraphs
-      const formattedText = textContent
+      const formattedText = escapedText
         .replace(/\r\n|\r|\n/g, '<br>') // Convert all newlines to <br>
         .replace(/((?:<br>){2,})/g, '</p><p>') // Convert multiple newlines to paragraphs
         .replace(/<br><\/p>/g, '</p>') // Fix any <br></p> combinations
         .replace(/<p><br>/g, '<p>'); // Fix any <p><br> combinations
         
       return `
-        <div class="email-content plain-text" style="font-family: monospace; white-space: pre-wrap; line-height: 1.5; color: #333; max-width: 100%; word-wrap: break-word;">
-          <p>${formattedText}</p>
+        <div class="email-content-wrapper" style="max-width: 100%; overflow-x: auto;">
+          <div class="email-content plain-text" ${dirAttribute} style="font-family: -apple-system, BlinkMacSystemFont, Menlo, Monaco, Consolas, 'Courier New', monospace; white-space: pre-wrap; line-height: 1.5; color: #333; padding: 15px; background-color: #f8f9fa; border-radius: 4px; max-width: 100%; overflow-wrap: break-word; word-wrap: break-word;">
+            <p>${formattedText}</p>
+          </div>
         </div>
       `;
     }
@@ -97,6 +162,11 @@ export function formatEmailContent(email: any): string {
     return '<div class="email-content-empty">No content available</div>';
   } catch (error) {
     console.error('formatEmailContent: Error formatting email content:', error);
-    return '<div class="email-content-error">Error displaying email content</div>';
+    return `
+      <div class="email-content-error" style="padding: 15px; color: #721c24; background-color: #f8d7da; border: 1px solid #f5c6cb; border-radius: 4px;">
+        <p>Error displaying email content</p>
+        <p style="font-size: 12px; margin-top: 10px;">${error instanceof Error ? error.message : 'Unknown error'}</p>
+      </div>
+    `;
   }
 } 
\ No newline at end of file