v0.16 Significant user image handling improvement, including avatar resizing

gossamer_forums.rb

@@ -1,5 +1,5 @@
 # gossamer threads migration-import code
-# v0.15.9
+# v0.16
 
 require 'mysql2'
 require 'open-uri'
@@ -382,6 +382,20 @@ class GossamerForumsImporter < ImportScripts::Base
 #    print "Importing files for user #{user.username}... Done.\n"
 #  end
 
+  # Helper method to convert TIFF to PNG
+  def convert_tiff_to_png(file_path)
+    png_path = file_path.sub('.tiff', '.png').sub('.tif', '.png')
+    system("convert #{file_path} #{png_path}")
+    png_path
+  end
+
+  # Helper method to resize an image to specified dimensions
+  def resize_image(file_path, max_width, max_height)
+    resized_path = file_path.sub(File.extname(file_path), "_resized#{File.extname(file_path)}")
+    system("convert #{file_path} -resize #{max_width}x#{max_height} #{resized_path}")
+    resized_path
+  end
+
   # Import user files (profile images) from Gossamer Forums to Discourse
   def import_user_files(user)
     print "\rImporting files for user #{user.username}..."
@@ -397,32 +411,57 @@ class GossamerForumsImporter < ImportScripts::Base
     images_imported = 0
   
     execute_query("SELECT * FROM gforum_User_Files WHERE ForeignColKey = #{original_gossamer_id}").each do |file|
-#      encoded_filename = URI.encode(file['File_Name'])
+
+      # Encode the filename twice to match how it is stored on the server
       double_encoded_filename = file['File_Name'].gsub('%', '%25')
       encoded_filename = URI.encode_www_form_component(double_encoded_filename)
+
+      # Construct the file URL
       file_url = "https://forum.slowtwitch.com/images/users/images/#{file['ID'] % 10}/#{file['ID']}-#{encoded_filename}"
       puts "User #{user.username}  User ID: #{user.id}  original_gossamer_id: #{original_gossamer_id}  file_url: #{file_url}"
   
+      # Ensure the file is a user image and has a supported MIME type
       next unless file['ForeignColName'] =~ /^user_image\d+$/
       puts "#A"
-      next unless ['image/jpeg', 'image/png'].include?(file['File_MimeType'])
+      next unless ['image/jpeg', 'image/png', 'image/gif', 'image/tiff'].include?(file['File_MimeType'])
       puts "#B"
   
+      # Download the attachment
       image_data = download_attachment(file_url)
       next if image_data.nil?
       puts "#C"
   
+      # Write the image data to a temporary file
       temp_file = Tempfile.new(['user_image', File.extname(file['File_Name'])])
       temp_file.binmode
       temp_file.write(image_data)
       temp_file.rewind
   
+      # Convert TIFF to PNG if necessary
+      if file['File_MimeType'] == 'image/tiff'
+        temp_file.close
+        temp_file = File.open(convert_tiff_to_png(temp_file.path))
+      end
+
+      # Resize the image for the avatar / profile picture (200x200)
+      resized_image_path = resize_image(temp_file.path, 200, 200)
+      resized_temp_file = Tempfile.new(['user_image_resized', '.png'])
+      FileUtils.copy_file(resized_image_path, resized_temp_file.path)
+
+      # Only handle the first image for avator and profile settings
       if images_imported == 0
         puts "#D"
+
+        # Upload the original image for profile header and user card background
         upload = upload_attachment(user, temp_file, file['File_Name'], file_url)
         next if upload.nil?
   
-        user.user_avatar = UserAvatar.create!(user_id: user.id, custom_upload_id: upload.id)
+        # Upload the resized image for the avatar
+        resized_upload = upload_attachment(user, resized_temp_file, file['File_Name'], file_url)
+        next if resized_upload.nil?
+
+        # Set the avatar usign the resized image
+        user.user_avatar = UserAvatar.create!(user_id: user.id, custom_upload_id: resized_upload.id)
         user.save!
 
         # Set the Profile Header
@@ -432,14 +471,20 @@ class GossamerForumsImporter < ImportScripts::Base
         UserProfile.find_by(user_id: user.id).update!(card_background_upload_id: upload.id)
 
         images_imported += 1
-      end 
+      end
+
       puts "#E"
+
+      # Append the image to the user's bio
       user.user_profile.bio_raw ||= ""
       user.user_profile.bio_raw += "\n\n![#{file['File_Name']}](#{file_url})"
       user.user_profile.save!
-        
+      
+      # Clean up temporary files
       temp_file.close
       temp_file.unlink
+      resized_temp_file.close
+      resized_temp_file.unlink
     end
     print "Importing files for user #{user.username}... Done.\n"
   end