FEATURE: Ning importer

script/import_scripts/ning.rb

@@ -0,0 +1,306 @@
+require File.expand_path(File.dirname(__FILE__) + "/../../config/environment")
+require File.expand_path(File.dirname(__FILE__) + "/base.rb")
+
+# Edit the constants and initialize method for your import data.
+
+class ImportScripts::Ning < ImportScripts::Base
+
+  JSON_FILES_DIR = "/path/to/json/archive/json/files"
+  ATTACHMENT_PREFIXES = ["discussions", "pages", "blogs", "members", "photos"]
+  EXTRA_AUTHORIZED_EXTENSIONS = ["bmp", "ico", "txt", "pdf"]
+
+  def initialize
+    super
+
+    @system_user = Discourse.system_user
+
+    @users_json       = load_ning_json("ning-members-local.json")
+    @discussions_json = load_ning_json("ning-discussions-local.json")
+    @blogs_json       = load_ning_json("ning-blogs-local.json")
+    @pages_json       = load_ning_json("ning-pages-local.json")
+
+    #SiteSetting.max_image_size_kb = 3072
+    #SiteSetting.max_attachment_size_kb = 1024
+    SiteSetting.authorized_extensions = (SiteSetting.authorized_extensions.split("|") + EXTRA_AUTHORIZED_EXTENSIONS).uniq.join("|")
+  end
+
+  def execute
+    puts "", "Importing from Ning..."
+
+    import_users
+    import_categories
+    import_discussions
+    import_blogs
+    import_pages
+    suspend_users
+
+    puts "", "Done"
+  end
+
+  def load_ning_json(arg)
+    filename = File.join(JSON_FILES_DIR, arg)
+    raise RuntimeError.new("File #{filename} not found!") if !File.exists?(filename)
+    JSON.parse(repair_json(File.read(filename))).reverse
+  end
+
+  def repair_json(arg)
+    arg.gsub!(/^\(/, "")     # content of file is surround by ( )
+    arg.gsub!(/\)$/, "")
+    arg.gsub!(/\}\{/, "},{") # missing commas sometimes!
+    arg
+  end
+
+  def import_users
+    puts '', "Importing users"
+
+    staff_levels = ["admin", "moderator", "owner"]
+
+    create_users(@users_json) do |u|
+      {
+        id: u["contributorName"],
+        name: u["fullName"],
+        email: u["email"],
+        created_at: Time.zone.parse(u["createdDate"]),
+        date_of_birth: u["birthdate"] ? Time.zone.parse(u["birthdate"]) : nil,
+        location: "#{u["location"]} #{u["country"]}",
+        avatar_url: u["profilePhoto"],
+        bio_raw: u["profileQuestions"].is_a?(Hash) ? u["profileQuestions"]["About Me"] : nil,
+        post_create_action: proc do |newuser|
+          if staff_levels.include?(u["level"].downcase)
+            if u["level"].downcase == "admin" || u["level"].downcase == "owner"
+              newuser.admin = true
+              newuser.save
+            else
+              newuser.moderator = true
+              newuser.save
+            end
+          end
+
+          if u["profilePhoto"]
+            photo_path = file_full_path(u["profilePhoto"])
+            if File.exists?(photo_path)
+              begin
+                upload = create_upload(newuser.id, photo_path, File.basename(photo_path))
+                if upload.persisted?
+                  newuser.import_mode = false
+                  newuser.create_user_avatar
+                  newuser.import_mode = true
+                  newuser.user_avatar.update(custom_upload_id: upload.id)
+                  newuser.update(uploaded_avatar_id: upload.id)
+                else
+                  puts "Error: Upload did not persist for #{photo_path}!"
+                end
+              rescue SystemCallError => err
+                puts "Could not import avatar #{photo_path}: #{err.message}"
+              end
+            else
+              puts "avatar file not found at #{photo_path}"
+            end
+          end
+        end
+      }
+    end
+  end
+
+  def suspend_users
+    puts '', "Updating suspended users"
+
+    count = 0
+    suspended = 0
+    total = @users_json.size
+
+    @users_json.each do |u|
+      if u["state"].downcase == "suspended"
+        if user = find_user_by_import_id(u["contributorName"])
+          user.suspended_at = Time.zone.now
+          user.suspended_till = 200.years.from_now
+
+          if user.save
+            StaffActionLogger.new(@system_user).log_user_suspend(user, "Import data indicates account is suspended.")
+            suspended += 1
+          else
+            puts "Failed to suspend user #{user.username}. #{user.errors.try(:full_messages).try(:inspect)}"
+          end
+        end
+      end
+
+      count += 1
+      print_status count, total
+    end
+
+    puts "", "Marked #{suspended} users as suspended."
+  end
+
+
+  def import_categories
+    puts "", "Importing categories"
+    create_categories((["Blog", "Pages"] + @discussions_json.map { |d| d["category"] }).uniq.compact) do |name|
+      if name.downcase == "uncategorized"
+        nil
+      else
+        {
+          id: name, # ning has no id for categories, so use the name
+          name: name
+        }
+      end
+    end
+  end
+
+
+  def import_discussions
+    puts "", "Importing discussions"
+    import_topics(@discussions_json)
+  end
+
+  def import_blogs
+    puts "", "Importing blogs"
+    import_topics(@blogs_json, "Blog")
+  end
+
+  def import_pages
+    puts "", "Importing pages"
+    import_topics(@pages_json, "Pages")
+  end
+
+  def import_topics(topics_json, default_category=nil)
+    topics = 0
+    posts = 0
+    total = topics_json.size # number of topics. posts are embedded in the topic json, so we can't get total post count quickly.
+
+    topics_json.each do |topic|
+      if topic["title"].present? && topic["description"].present?
+        @current_topic_title = topic["title"] # for debugging
+        mapped = {}
+        mapped[:id] = topic["id"]
+        mapped[:user_id] = user_id_from_imported_user_id(topic["contributorName"]) || -1
+        mapped[:created_at] = Time.zone.parse(topic["createdDate"])
+        unless topic["category"].nil? || topic["category"].downcase == "uncategorized"
+          mapped[:category] = category_from_imported_category_id(topic["category"]).try(:name)
+        end
+        if topic["category"].nil? && default_category
+          mapped[:category] = default_category
+        end
+        mapped[:title] = CGI.unescapeHTML(topic["title"])
+        mapped[:raw] = process_ning_post_body(topic["description"])
+
+        if topic["fileAttachments"]
+          mapped[:raw] = add_file_attachments(mapped[:raw], topic["fileAttachments"])
+        end
+
+        parent_post = create_post(mapped, mapped[:id])
+        unless parent_post.is_a?(Post)
+          puts "Error creating topic #{mapped[:id]}. Skipping."
+          puts parent_post.inspect
+        end
+
+        if topic["comments"].present?
+          topic["comments"].reverse.each do |post|
+            raw = process_ning_post_body(post["description"])
+            if post["fileAttachments"]
+              raw = add_file_attachments(raw, post["fileAttachments"])
+            end
+
+            new_post = create_post({
+                id: post["id"],
+                topic_id: parent_post.topic_id,
+                user_id: user_id_from_imported_user_id(post["contributorName"]) || -1,
+                raw: raw,
+                created_at: Time.zone.parse(post["createdDate"])
+              }, post["id"])
+
+            if new_post.is_a?(Post)
+              posts += 1
+            else
+              puts "Error creating post #{post["id"]}. Skipping."
+              puts new_post.inspect
+            end
+          end
+        end
+      end
+      topics += 1
+      print_status topics, total
+    end
+
+    puts "", "Imported #{topics} topics with #{topics + posts} posts."
+
+    [topics, posts]
+  end
+
+  def file_full_path(relpath)
+    File.join JSON_FILES_DIR, relpath.split("?").first
+  end
+
+  def attachment_regex
+    @_attachment_regex ||= Regexp.new(%Q[<a (?:[^>]*)href="(?:#{ATTACHMENT_PREFIXES.join('|')})\/(?:[^"]+)"(?:[^>]*)><img (?:[^>]*)src="([^"]+)"(?:[^>]*)><\/a>])
+  end
+
+  def youtube_iframe_regex
+    @_youtube_iframe_regex ||= Regexp.new(%Q[<p><iframe(?:[^>]*)src="\/\/www.youtube.com\/embed\/([^"]+)"(?:[^>]*)><\/iframe>(?:[^<]*)<\/p>])
+  end
+
+  def process_ning_post_body(arg)
+    raw = arg.gsub("</p>\n", "</p>")
+
+    # youtube iframe
+    raw.gsub!(youtube_iframe_regex) do |s|
+      matches = youtube_iframe_regex.match(s)
+      video_id = matches[1].split("?").first
+
+      next s unless video_id
+
+      "\n\nhttps://www.youtube.com/watch?v=#{video_id}\n"
+    end
+
+    # attachments
+    raw.gsub!(attachment_regex) do |s|
+      matches = attachment_regex.match(s)
+      ning_filename = matches[1]
+
+      filename = File.join(JSON_FILES_DIR, ning_filename.split("?").first)
+      if !File.exists?(filename)
+        puts "Attachment file doesn't exist: #{filename}"
+        next s
+      end
+
+      upload = create_upload(@system_user.id, filename, File.basename(filename))
+
+      if upload.nil? || !upload.valid?
+        puts "Upload not valid :(  #{filename}"
+        puts upload.errors.inspect if upload
+        next s
+      end
+
+      html_for_upload(upload, File.basename(filename))
+    end
+
+    raw
+  end
+
+  def add_file_attachments(arg, file_names)
+    raw = arg
+
+    file_names.each do |f|
+      filename = File.join(JSON_FILES_DIR, f.split("?").first)
+      if !File.exists?(filename)
+        puts "Attachment file doesn't exist: #{filename}"
+        next
+      end
+
+      upload = create_upload(@system_user.id, filename, File.basename(filename))
+
+      if upload.nil? || !upload.valid?
+        puts "Upload not valid :(  #{filename}"
+        puts upload.errors.inspect if upload
+        next
+      end
+
+      raw += "\n" + attachment_html(upload, File.basename(filename))
+    end
+
+    raw
+  end
+end
+
+if __FILE__==$0
+  ImportScripts::Ning.new.perform
+end