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30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
687 lines
23 KiB
Ruby
687 lines
23 KiB
Ruby
# frozen_string_literal: true
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require File.expand_path(File.dirname(__FILE__) + "/base.rb")
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require 'csv'
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# Importer for Friends+Me Google+ Exporter (F+MG+E) output.
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#
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# Takes the full path (absolute or relative) to
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# * each of the F+MG+E JSON export files you want to import
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# * the F+MG+E google-plus-image-list.csv file,
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# * a categories.json file you write to describe how the Google+
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# categories map to Discourse categories, subcategories, and tags.
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#
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# You can provide all the F+MG+E JSON export files in a single import
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# run. This will be the fastest way to do the entire import if you
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# have enough memory and disk space. It will work just as well to
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# import each F+MG+E JSON export file separately. This might be
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# valuable if you have memory or space limitations, as the memory to
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# hold all the data from the F+MG+E JSON export files is one of the
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# key resources used by this script.
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#
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# Create an initial empty ("{}") categories.json file, and the import
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# script will write a .new file for you to fill in the details.
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# You will probably want to use jq to reformat the .new file before
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# trying to edit it. `jq . categories.json.new > categories.json`
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#
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# Provide a filename that ends with "upload-paths.txt" and the names
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# of each of the files uploaded will be written to the file with that
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# name
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#
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# Edit values at the top of the script to fit your preferences
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class ImportScripts::FMGP < ImportScripts::Base
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def initialize
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super
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# Set this to the base URL for the site; required for importing videos
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# typically just 'https:' in production
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@site_base_url = 'http://localhost:3000'
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@system_user = Discourse.system_user
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SiteSetting.max_image_size_kb = 40960
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SiteSetting.max_attachment_size_kb = 40960
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# handle the same video extension as the rest of Discourse
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SiteSetting.authorized_extensions = (SiteSetting.authorized_extensions.split("|") + ['mp4', 'mov', 'webm', 'ogv']).uniq.join("|")
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@invalid_bounce_score = 5.0
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@min_title_words = 3
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@max_title_words = 14
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@min_title_characters = 12
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@min_post_raw_characters = 12
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# Set to true to create categories in categories.json. Does
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# not honor parent relationships; expects categories to be
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# rearranged after import.
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@create_categories = false
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# JSON files produced by F+MG+E as an export of a community
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@feeds = []
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# CSV is map to downloaded images and/or videos (exported separately)
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@images = {}
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# map from Google ID to local system users where necessary
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# {
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# "128465039243871098234": "handle"
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# }
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# GoogleID 128465039243871098234 will show up as @handle
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@usermap = {}
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# G+ user IDs to filter out (spam, abuse) — no topics or posts, silence and suspend when creating
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# loaded from blacklist.json as array of google ids `[ 92310293874, 12378491235293 ]`
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@blacklist = Set[]
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# G+ user IDs whose posts are useful; if this is set, include only
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# posts (and non-blacklisted comments) authored by these IDs
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@whitelist = nil
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# Tags to apply to every topic; empty Array to not have any tags applied everywhere
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@globaltags = [ "gplus" ]
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@imagefiles = nil
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# categories.json file is map:
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# "google-category-uuid": {
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# "name": 'google+ category name',
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# "category": 'category name',
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# "parent": 'parent name', # optional
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# "create": true, # optional
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# "tags": ['list', 'of', 'tags'] optional
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# }
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# Start with '{}', let the script generate categories.json.new once, then edit and re-run
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@categories = {}
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# keep track of the filename in case we need to write a .new file
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@categories_filename = nil
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# dry run parses but doesn't create
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@dryrun = false
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# @last_date cuts off at a certain date, for late-spammed abandoned communities
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@last_date = nil
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# @first_date starts at a certain date, for early-spammed rescued communities
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@first_date = nil
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# every argument is a filename, do the right thing based on the file name
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ARGV.each do |arg|
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if arg.end_with?('.csv')
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# CSV files produced by F+MG+E have "URL";"IsDownloaded";"FileName";"FilePath";"FileSize"
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CSV.foreach(arg, headers: true, col_sep: ';') do |row|
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@images[row[0]] = {
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filename: row[2],
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filepath: row[3],
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filesize: row[4]
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}
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end
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elsif arg.end_with?("upload-paths.txt")
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@imagefiles = File.open(arg, "w")
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elsif arg.end_with?('categories.json')
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@categories_filename = arg
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@categories = load_fmgp_json(arg)
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elsif arg.end_with?("usermap.json")
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@usermap = load_fmgp_json(arg)
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elsif arg.end_with?('blacklist.json')
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@blacklist = load_fmgp_json(arg).map { |i| i.to_s }.to_set
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elsif arg.end_with?('whitelist.json')
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@whitelist = load_fmgp_json(arg).map { |i| i.to_s }.to_set
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elsif arg.end_with?('.json')
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@feeds << load_fmgp_json(arg)
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elsif arg == '--dry-run'
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@dryrun = true
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elsif arg.start_with?("--last-date=")
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@last_date = Time.zone.parse(arg.gsub(/.*=/, ''))
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elsif arg.start_with?("--first-date=")
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@first_date = Time.zone.parse(arg.gsub(/.*=/, ''))
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else
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raise RuntimeError.new("unknown argument #{arg}")
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end
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end
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raise RuntimeError.new("Must provide a categories.json file") if @categories_filename.nil?
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# store the actual category objects looked up in the database
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@cats = {}
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# remember google auth DB lookup results
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@emails = {}
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@newusers = {}
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@users = {}
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# remember uploaded images
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@uploaded = {}
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# counters for post progress
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@topics_imported = 0
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@posts_imported = 0
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@topics_skipped = 0
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@posts_skipped = 0
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@topics_blacklisted = 0
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@posts_blacklisted = 0
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# count uploaded file size
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@totalsize = 0
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end
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def execute
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puts "", "Importing from Friends+Me Google+ Exporter..."
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read_categories
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check_categories
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map_categories
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import_users
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import_posts
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# No need to set trust level 0 for any imported users unless F+MG+E gets the
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# ability to add +1 data, in which case users who have only done a +1 and
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# neither posted nor commented should be TL0, in which case this should be
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# called after all other processing done
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# update_tl0
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@imagefiles.close() if !@imagefiles.nil?
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puts "", "Uploaded #{@totalsize} bytes of image files"
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puts "", "Done"
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end
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def load_fmgp_json(filename)
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raise RuntimeError.new("File #{filename} not found") if !File.exists?(filename)
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JSON.parse(File.read(filename))
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end
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def read_categories
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@feeds.each do |feed|
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feed["accounts"].each do |account|
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account["communities"].each do |community|
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community["categories"].each do |category|
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if !@categories[category["id"]].present?
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# Create empty entries to write and fill in manually
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@categories[category["id"]] = {
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"name" => category["name"],
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"community" => community["name"],
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"category" => "",
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"parent" => nil,
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"tags" => [],
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}
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elsif !@categories[category["id"]]["community"].present?
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@categories[category["id"]]["community"] = community["name"]
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end
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end
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end
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end
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end
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end
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def check_categories
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# raise a useful exception if necessary data not found in categories.json
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incomplete_categories = []
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@categories.each do |id, c|
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if !c["category"].present?
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# written in JSON without a "category" key at all
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c["category"] = ""
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end
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if c["category"].empty?
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# found in read_categories or not yet filled out in categories.json
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incomplete_categories << c["name"]
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end
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end
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if !incomplete_categories.empty?
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categories_new = "#{@categories_filename}.new"
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File.open(categories_new, "w") do |f|
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f.write(@categories.to_json)
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raise RuntimeError.new("Category file missing categories for #{incomplete_categories}, edit #{categories_new} and rename it to #{@category_filename} before running the same import")
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end
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end
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end
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def map_categories
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puts "", "Mapping categories from Google+ to Discourse..."
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@categories.each do |id, cat|
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if cat["parent"].present? && !cat["parent"].empty?
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# Two separate sub-categories can have the same name, so need to identify by parent
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Category.where(name: cat["category"]).each do |category|
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parent = Category.where(id: category.parent_category_id).first
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@cats[id] = category if parent.name == cat["parent"]
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end
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else
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if category = Category.where(name: cat["category"]).first
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@cats[id] = category
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elsif @create_categories
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params = {}
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params[:name] = cat['category']
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params[:id] = id
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puts "Creating #{cat['category']}"
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category = create_category(params, id)
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@cats[id] = category
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end
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end
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raise RuntimeError.new("Could not find category #{cat["category"]} for #{cat}") if @cats[id].nil?
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end
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end
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def import_users
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puts '', "Importing Google+ post and comment author users..."
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# collect authors of both posts and comments
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@feeds.each do |feed|
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feed["accounts"].each do |account|
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account["communities"].each do |community|
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community["categories"].each do |category|
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category["posts"].each do |post|
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import_author_user(post["author"])
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if post["message"].present?
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import_message_users(post["message"])
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end
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post["comments"].each do |comment|
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import_author_user(comment["author"])
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if comment["message"].present?
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import_message_users(comment["message"])
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end
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end
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end
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end
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end
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end
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end
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return if @dryrun
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# now create them all
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create_users(@newusers) do |id, u|
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{
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id: id,
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email: u[:email],
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name: u[:name],
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post_create_action: u[:post_create_action]
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}
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end
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end
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def import_author_user(author)
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id = author["id"]
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name = author["name"]
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import_google_user(id, name)
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end
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def import_message_users(message)
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message.each do |fragment|
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if fragment[0] == 3 && !fragment[2].nil?
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# deleted G+ users show up with a null ID
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import_google_user(fragment[2], fragment[1])
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end
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end
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end
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def import_google_user(id, name)
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if !@emails[id].present?
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google_user_info = UserAssociatedAccount.find_by(provider_name: 'google_oauth2', provider_uid: id.to_i)
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if google_user_info.nil?
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# create new google user on system; expect this user to merge
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# when they later log in with google authentication
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# Note that because email address is not included in G+ data, we
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# don't know if they already have another account not yet associated
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# with google ooauth2. If they didn't log in, they'll have an
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# @gplus.invalid address associated with their account
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email = "#{id}@gplus.invalid"
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@newusers[id] = {
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email: email,
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name: name,
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post_create_action: proc do |newuser|
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newuser.approved = true
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newuser.approved_by_id = @system_user.id
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newuser.approved_at = newuser.created_at
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if @blacklist.include?(id.to_s)
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now = DateTime.now
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forever = 1000.years.from_now
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# you can suspend as well if you want your blacklist to
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# be hard to recover from
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#newuser.suspended_at = now
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#newuser.suspended_till = forever
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newuser.silenced_till = forever
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end
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newuser.save
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@users[id] = newuser
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UserAssociatedAccount.create(provider_name: 'google_oauth2', user_id: newuser.id, provider_uid: id)
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# Do not send email to the invalid email addresses
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# this can be removed after merging with #7162
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s = UserStat.where(user_id: newuser.id).first
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s.bounce_score = @invalid_bounce_score
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s.reset_bounce_score_after = 1000.years.from_now
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s.save
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end
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}
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else
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# user already on system
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u = User.find(google_user_info.user_id)
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if u.silenced? || u.suspended?
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@blacklist.add(id)
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end
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@users[id] = u
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email = u.email
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end
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@emails[id] = email
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end
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end
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def import_posts
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# "post" is confusing:
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# - A google+ post is a discourse topic
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# - A google+ comment is a discourse post
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puts '', "Importing Google+ posts and comments..."
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@feeds.each do |feed|
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feed["accounts"].each do |account|
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account["communities"].each do |community|
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community["categories"].each do |category|
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category["posts"].each do |post|
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# G+ post / Discourse topic
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import_topic(post, category)
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print("\r#{@topics_imported}/#{@posts_imported} topics/posts (skipped: #{@topics_skipped}/#{@posts_skipped} blacklisted: #{@topics_blacklisted}/#{@posts_blacklisted}) ")
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end
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end
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end
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end
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end
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puts ''
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end
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def import_topic(post, category)
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# no parent for discourse topics / G+ posts
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if topic_id = post_id_from_imported_post_id(post["id"])
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# already imported topic; might need to attach more comments/posts
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p = Post.find_by(id: topic_id)
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@topics_skipped += 1
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else
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# new post
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if !@whitelist.nil? && !@whitelist.include?(post["author"]["id"])
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# only ignore non-whitelisted if whitelist defined
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return
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end
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postmap = make_postmap(post, category, nil)
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if postmap.nil?
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@topics_blacklisted += 1
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return
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end
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p = create_post(postmap, postmap[:id]) if !@dryrun
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@topics_imported += 1
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end
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# iterate over comments in post
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post["comments"].each do |comment|
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# category is nil for comments
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if post_id_from_imported_post_id(comment["id"])
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@posts_skipped += 1
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else
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commentmap = make_postmap(comment, nil, p)
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if commentmap.nil?
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@posts_blacklisted += 1
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else
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@posts_imported += 1
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new_comment = create_post(commentmap, commentmap[:id]) if !@dryrun
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end
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end
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end
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end
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def make_postmap(post, category, parent)
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post_author_id = post["author"]["id"]
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return nil if @blacklist.include?(post_author_id.to_s)
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raw = formatted_message(post)
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# if no message, image, or images, it's just empty
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return nil if raw.length < @min_post_raw_characters
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created_at = Time.zone.parse(post["createdAt"])
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return nil if !@last_date.nil? && created_at > @last_date
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return nil if !@frst_date.nil? && created_at < @first_date
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user_id = user_id_from_imported_user_id(post_author_id)
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if user_id.nil?
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user_id = @users[post["author"]["id"]].id
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end
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mapped = {
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id: post["id"],
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user_id: user_id,
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created_at: created_at,
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raw: raw,
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cook_method: Post.cook_methods[:regular],
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}
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# nil category for comments, set for posts, so post-only things here
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if !category.nil?
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cat_id = category["id"]
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mapped[:title] = parse_title(post, created_at)
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mapped[:category] = @cats[cat_id].id
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mapped[:tags] = Array.new(@globaltags)
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if @categories[cat_id]["tags"].present?
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mapped[:tags].append(@categories[cat_id]["tags"]).flatten!
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end
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else
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mapped[:topic_id] = parent.topic_id if !@dryrun
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end
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# FIXME: import G+ "+1" as "like" if F+MG+E feature request implemented
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return mapped
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end
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def parse_title(post, created_at)
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# G+ has no titles, so we have to make something up
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if post["message"].present?
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title_text(post, created_at)
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else
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# probably just posted an image and/or album
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untitled(post["author"]["name"], created_at)
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end
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end
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def title_text(post, created_at)
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words = message_text(post["message"])
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if words.empty? || words.join("").length < @min_title_characters || words.length < @min_title_words
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# database has minimum length
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# short posts appear not to work well as titles most of the time (in practice)
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return untitled(post["author"]["name"], created_at)
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end
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words = words[0..(@max_title_words - 1)]
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lastword = nil
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(@min_title_words..(words.length - 1)).each do |i|
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# prefer full stop
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if words[i].end_with?(".")
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lastword = i
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end
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end
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if lastword.nil?
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# fall back on other punctuation
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(@min_title_words..(words.length - 1)).each do |i|
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if words[i].end_with?(',', ';', ':', '?')
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lastword = i
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end
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end
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end
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if !lastword.nil?
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|
# found a logical terminating word
|
|
words = words[0..lastword]
|
|
end
|
|
|
|
# database has max title length, which is longer than a good display shows anyway
|
|
title = words.join(" ").scan(/.{1,254}/)[0]
|
|
end
|
|
|
|
def untitled(name, created_at)
|
|
"Google+ post by #{name} on #{created_at}"
|
|
end
|
|
|
|
def message_text(message)
|
|
# only words, no markup
|
|
words = []
|
|
text_types = [0, 3]
|
|
message.each do |fragment|
|
|
if text_types.include?(fragment[0])
|
|
fragment[1].split().each do |word|
|
|
words << word
|
|
end
|
|
elsif fragment[0] == 2
|
|
# use the display text of a link
|
|
words << fragment[1]
|
|
end
|
|
end
|
|
return words
|
|
end
|
|
|
|
def formatted_message(post)
|
|
lines = []
|
|
urls_seen = Set[]
|
|
if post["message"].present?
|
|
post["message"].each do |fragment|
|
|
lines << formatted_message_fragment(fragment, post, urls_seen)
|
|
end
|
|
end
|
|
# yes, both "image" and "images"; "video" and "videos" :(
|
|
if post["video"].present?
|
|
lines << "\n#{formatted_link(post["video"]["proxy"])}\n"
|
|
elsif post["image"].present?
|
|
# if both image and video, image is a cover image for the video
|
|
lines << "\n#{formatted_link(post["image"]["proxy"])}\n"
|
|
end
|
|
if post["images"].present?
|
|
post["images"].each do |image|
|
|
lines << "\n#{formatted_link(image["proxy"])}\n"
|
|
end
|
|
end
|
|
if post["videos"].present?
|
|
post["videos"].each do |video|
|
|
lines << "\n#{formatted_link(video["proxy"])}\n"
|
|
end
|
|
end
|
|
if post["link"].present? && post["link"]["url"].present?
|
|
url = post["link"]["url"]
|
|
if !urls_seen.include?(url)
|
|
# add the URL only if it wasn't already referenced, because
|
|
# they are often redundant
|
|
lines << "\n#{post["link"]["url"]}\n"
|
|
urls_seen.add(url)
|
|
end
|
|
end
|
|
lines.join("")
|
|
end
|
|
|
|
def formatted_message_fragment(fragment, post, urls_seen)
|
|
# markdown does not nest reliably the same as either G+'s markup or what users intended in G+, so generate HTML codes
|
|
# this method uses return to make sure it doesn't fall through accidentally
|
|
if fragment[0] == 0
|
|
# Random zero-width join characters break the output; in particular, they are
|
|
# common after plus-references and break @name recognition. Just get rid of them.
|
|
# Also deal with 0x80 (really‽) and non-breaking spaces
|
|
text = fragment[1].gsub(/(\u200d|\u0080)/, "").gsub(/\u00a0/, " ")
|
|
if fragment[2].nil?
|
|
return text
|
|
else
|
|
if fragment[2]["italic"].present?
|
|
text = "<i>#{text}</i>"
|
|
end
|
|
if fragment[2]["bold"].present?
|
|
text = "<b>#{text}</b>"
|
|
end
|
|
if fragment[2]["strikethrough"].present?
|
|
# s more likely than del to represent user intent?
|
|
text = "<s>#{text}</s>"
|
|
end
|
|
return text
|
|
end
|
|
elsif fragment[0] == 1
|
|
return "\n"
|
|
elsif fragment[0] == 2
|
|
urls_seen.add(fragment[2])
|
|
return formatted_link_text(fragment[2], fragment[1])
|
|
elsif fragment[0] == 3
|
|
# reference to a user
|
|
if @usermap.include?(fragment[2].to_s)
|
|
return "@#{@usermap[fragment[2].to_s]}"
|
|
end
|
|
if fragment[2].nil?
|
|
# deleted G+ users show up with a null ID
|
|
return "<b>+#{fragment[1]}</b>"
|
|
end
|
|
# G+ occasionally doesn't put proper spaces after users
|
|
if user = find_user_by_import_id(fragment[2])
|
|
# user was in this import's authors
|
|
return "@#{user.username} "
|
|
else
|
|
if google_user_info = UserAssociatedAccount.find_by(provider_name: 'google_oauth2', provider_uid: fragment[2])
|
|
# user was not in this import, but has logged in or been imported otherwise
|
|
user = User.find(google_user_info.user_id)
|
|
return "@#{user.username} "
|
|
else
|
|
raise RuntimeError.new("Google user #{fragment[1]} (id #{fragment[2]}) not imported") if !@dryrun
|
|
# if you want to fall back to their G+ name, just erase the raise above,
|
|
# but this should not happen
|
|
return "<b>+#{fragment[1]}</b>"
|
|
end
|
|
end
|
|
elsif fragment[0] == 4
|
|
# hashtag, the octothorpe is included
|
|
return fragment[1]
|
|
else
|
|
raise RuntimeError.new("message code #{fragment[0]} not recognized!")
|
|
end
|
|
end
|
|
|
|
def formatted_link(url)
|
|
formatted_link_text(url, url)
|
|
end
|
|
|
|
def embedded_image_md(upload)
|
|
# remove unnecessary size logic relative to embedded_image_html
|
|
upload_name = upload.short_url || upload.url
|
|
if upload_name =~ /\.(mov|mp4|webm|ogv)$/i
|
|
@site_base_url + upload.url
|
|
else
|
|
""
|
|
end
|
|
end
|
|
|
|
def formatted_link_text(url, text)
|
|
# two ways to present images attached to posts; you may want to edit this for preference
|
|
# - display: embedded_image_html(upload)
|
|
# - download links: attachment_html(upload, text)
|
|
# you might even want to make it depend on the file name.
|
|
if @images[text].present?
|
|
# F+MG+E provides the URL it downloaded in the text slot
|
|
# we won't use the plus url at all since it will disappear anyway
|
|
url = text
|
|
end
|
|
if @uploaded[url].present?
|
|
upload = @uploaded[url]
|
|
return "\n#{embedded_image_md(upload)}"
|
|
elsif @images[url].present?
|
|
missing = "<i>missing/deleted image from Google+</i>"
|
|
return missing if !Pathname.new(@images[url][:filepath]).exist?
|
|
@imagefiles.write("#{@images[url][:filepath]}\n") if !@imagefiles.nil?
|
|
upload = create_upload(@system_user.id, @images[url][:filepath], @images[url][:filename])
|
|
if upload.nil? || upload.id.nil?
|
|
# upload can be nil if the image conversion fails
|
|
# upload.id can be nil for at least videos, and possibly deleted images
|
|
return missing
|
|
end
|
|
upload.save
|
|
@totalsize += @images[url][:filesize].to_i
|
|
@uploaded[url] = upload
|
|
return "\n#{embedded_image_md(upload)}"
|
|
end
|
|
if text == url
|
|
# leave the URL bare and Discourse will do the right thing
|
|
return url
|
|
else
|
|
# It turns out that the only place we get here, google has done its own text
|
|
# interpolation that doesn't look good on Discourse, so while it looks like
|
|
# this should be:
|
|
# return "[#{text}](#{url})"
|
|
# it actually looks better to throw away the google-provided text:
|
|
return url
|
|
end
|
|
end
|
|
end
|
|
|
|
if __FILE__ == $0
|
|
ImportScripts::FMGP.new.perform
|
|
end
|