From 36920bc9d5464e11f4fed00cce311bb447d41a46 Mon Sep 17 00:00:00 2001
From: alma <alma@governance-labs.org>
Date: Thu, 1 May 2025 12:30:13 +0200
Subject: [PATCH] courrier preview

---
 lib/utils/email-content.ts | 29 ++++++++++++++++++++++++--
 lib/utils/email-utils.ts   | 42 +++++++++++++++-----------------------
 2 files changed, 44 insertions(+), 27 deletions(-)

diff --git a/lib/utils/email-content.ts b/lib/utils/email-content.ts
index 93517166..8c06fc09 100644
--- a/lib/utils/email-content.ts
+++ b/lib/utils/email-content.ts
@@ -236,6 +236,31 @@ export function processHtmlContent(htmlContent: string, textContent?: string): s
           }
         });
         
+        // Fix image URLs - preserve cid: URLs for email attachments
+        const images = tempDiv.querySelectorAll('img');
+        images.forEach(img => {
+          const src = img.getAttribute('src');
+          if (src) {
+            // Don't modify cid: URLs as they are handled specially in email clients
+            if (src.startsWith('cid:')) {
+              // Keep cid: URLs as they are
+              console.log('Preserving CID reference:', src);
+            } 
+            // Fix http:// URLs to https:// for security
+            else if (src.startsWith('http://')) {
+              img.setAttribute('src', src.replace('http://', 'https://'));
+            }
+            // Handle relative URLs that might be broken
+            else if (!src.startsWith('https://') && !src.startsWith('data:')) {
+              if (src.startsWith('/')) {
+                img.setAttribute('src', `https://example.com${src}`);
+              } else {
+                img.setAttribute('src', `https://example.com/${src}`);
+              }
+            }
+          }
+        });
+        
         // Get the fixed HTML
         sanitizedContent = tempDiv.innerHTML;
       }
@@ -243,11 +268,11 @@ export function processHtmlContent(htmlContent: string, textContent?: string): s
       console.error('Error fixing URLs in content:', e);
     }
     
-    // Fix common email client quirks
+    // Fix common email client quirks without breaking cid: URLs
     return 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
+      // Fix for broken image paths WITHOUT replacing cid: URLs
       .replace(/(src|background)="(?!(?:https?:|data:|cid:))/gi, '$1="https://')
       // Fix for base64 images that might be broken across lines
       .replace(/src="data:image\/[^;]+;base64,\s*([^"]+)\s*"/gi, (match, p1) => {
diff --git a/lib/utils/email-utils.ts b/lib/utils/email-utils.ts
index 0f3f434f..058058ec 100644
--- a/lib/utils/email-utils.ts
+++ b/lib/utils/email-utils.ts
@@ -272,33 +272,32 @@ export function formatReplyEmail(originalEmail: EmailMessage | LegacyEmailMessag
   // Get header information
   const { fromStr, dateStr, subject } = getFormattedHeaderInfo(originalEmail);
 
-  // Extract just the text content for a clean reply
-  let emailText = '';
-  
   // Extract content using the centralized extraction function
   const { text, html } = extractEmailContent(originalEmail);
-  emailText = text;
   
   // Create a clearer reply header with separator line
-  const cleanReplyHeader = `
+  const replyHeader = `
     <div style="margin: 20px 0 10px 0; color: #666; border-bottom: 1px solid #ddd; padding-bottom: 5px;">
       On ${dateStr}, ${fromStr} wrote:
     </div>
   `;
   
-  // No character limit - display the full email content
+  // Use the original HTML content if available, otherwise format the text
+  const contentHtml = html || (text ? `<p>${text.replace(/\n/g, '</p><p>')}</p>` : '<p>No content available</p>');
+  
+  // Wrap the original content in proper styling without losing the HTML structure
   const cleanHtml = `
-    ${cleanReplyHeader}
+    ${replyHeader}
     <blockquote style="margin: 0; padding-left: 10px; border-left: 3px solid #ddd; color: #505050; background-color: #f9f9f9; padding: 10px;">
-      ${html || `<p>${emailText.replace(/\n/g, '</p><p>')}</p>`}
+      ${contentHtml}
     </blockquote>
   `;
   
-  // Plain text version - no truncation
+  // Plain text version
   const plainText = `
 On ${dateStr}, ${fromStr} wrote:
 -------------------------------------------------------------------
-${emailText.split('\n').join('\n> ')}
+${text.split('\n').join('\n> ')}
   `;
 
   return {
@@ -334,15 +333,11 @@ export function formatForwardedEmail(originalEmail: EmailMessage | LegacyEmailMe
   // Get header information
   const { fromStr, toStr, ccStr, dateStr, subject } = getFormattedHeaderInfo(originalEmail);
 
-  // Extract just the text content for a clean forward
-  let emailText = '';
-  
   // Extract content using the centralized extraction function
   const { text, html } = extractEmailContent(originalEmail);
-  emailText = text;
   
-  // Create a more traditional forward format with dashed separator
-  const cleanForwardHeader = `
+  // Create a traditional forward format with dashed separator
+  const forwardHeader = `
     <div style="margin: 20px 0 10px 0; color: #666;">
       <div style="border-bottom: 1px solid #ccc; margin-bottom: 10px; padding-bottom: 5px;">
         <div>---------------------------- Forwarded Message ----------------------------</div>
@@ -358,15 +353,12 @@ export function formatForwardedEmail(originalEmail: EmailMessage | LegacyEmailMe
     </div>
   `;
   
-  // No character limit - display the full email content
-  const cleanHtml = `
-    ${cleanForwardHeader}
-    <div class="forwarded-content" style="margin: 0; color: #333;">
-      ${html || `<p>${emailText.replace(/\n/g, '</p><p>')}</p>`}
-    </div>
-  `;
+  // Use the original HTML content if available, otherwise format the text
+  const contentHtml = html || (text ? `<p>${text.replace(/\n/g, '</p><p>')}</p>` : '<p>No content available</p>');
   
-  // Plain text version - no truncation
+  const cleanHtml = `${forwardHeader}${contentHtml}`;
+  
+  // Plain text version
   const plainText = `
 ---------------------------- Forwarded Message ----------------------------
 From: ${fromStr}
@@ -376,7 +368,7 @@ To: ${toStr}
 ${ccStr ? `Cc: ${ccStr}` : ''}
 ----------------------------------------------------------------------
 
-${emailText}
+${text}
   `;
 
   // Check if original has attachments