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main
Nick Thomas 10 years ago
commit bb825e679d

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Tapatalker
==========
This project is intended as a Tapatalk-to-Discourse bridge, with the primary
aim of allowing mobile users to receive push notifications of updates in a
Discourse forum.
It's implemented as a Tapatalk-compliant XMLRPC endpoint that talks to a
Discourse instance using its REST API. Keeping both services at arms-length
should have some benefit.
The primary motivation is for the new York Minxters roller derby forum, so
some of this might end up being a bit rough and ready. We'll see.

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require 'tapatalker'
run Sinatra::Application

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---
# URL of the discourse forum whose API we'll be consuming
discourse_url: ""
# We need an API key for that forum
discourse_api_key: ""
# This is probably needed for push notifications
tapatalk_url: ""
# This is definitely needed for push notifications
tapatalk_api_key: ""

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require 'sinatra'
require 'xmlrpc/marshal'
require 'discourse_api'
require 'json'
require 'pp'
require 'chronic'
CONFIG = YAML.load(
File.read(
File.join(
File.expand_path( File.join( File.dirname( __FILE__ ), ".." ) ),
"config.yml"
)
)
)
#use Rack::Session::Cookie, :key => "rack.session",
# :domain => DOMAIN,
# :path => "/",
# :expire_after => 86400 * 7, # login every 7 days...
# :secret => "change_me", # change these
# :old_secret => "change_me"
set :discourse_api, URI::parse( CONFIG.fetch( 'discourse_url' ) )
set :discourse_api_key, CONFIG.fetch( 'discourse_api_key' )
# For push notifications. TODO.
set :tapatalk_api, CONFIG.fetch( 'tapatalk_url', nil )
set :tapatalk_api_key, CONFIG.fetch( 'tapatalk_api_key', nil )
helpers do
# Use this as our entry point
def dispatch
xml = @request.body.read
fixup_tapatalk_xml( xml )
halt 400, "Empty XMLRPC request" if xml.empty?
# Parse xml
method, arguments = XMLRPC::Marshal.load_call(xml)
method = "xmlrpc_#{method.gsub(/([A-Z])/, '_ ').downcase}"
puts "method = #{method}, args = #{arguments.inspect}"
# Check if method exists
if(respond_to?(method))
content_type("text/xml", :charset => "utf-8")
send(method, *arguments)
else
raise Sinatra::NotFound
end
end
# Apparently, tapatalk formats booleans contrary to the XMLRPC standard.
# https://github.com/svdgraaf/django-tapatalk/blob/master/tapatalk/dispatcher.py
def fixup_tapatalk_xml( text )
text.gsub( '<boolean>true</boolean>', '<boolean>1</boolean>' )
end
def make_xmlrpc_datetime( string )
Chronic.parse( string )
end
def binary_xmlrpc( string )
# assume it's utf-8 for now, wrap in base64 encoding
XMLRPC::Base64.new( string )
end
def make_avatar_url( template_txt )
template_txt.to_s.gsub( "{size}", "160" )
end
# Clean up the text, converting it to BBCode (TODO) unless use_html
def format_post_content_for_xmlrpc( html_text, use_html )
raise NotImplementedError.new( "Can't convert to BBCode yet" ) unless
use_html
html_text
end
# Try to keep this instance around for as long as possible...
# TODO: To keep it around, push into Rack::Session, or cookies? Some sort of
# long-lived store. Can go away with process restarts, of course.
def discourse
uri = settings.discourse_api
uri = URI.parse(uri) unless uri.is_a?( URI::Generic )
@discourse ||= begin
client = DiscourseApi::Client.new( uri.host, uri.port, uri.scheme )
client.api_key = settings.discourse_api_key
# client.api_username = # session[:username] # ?
client
end
end
def respond_xmlrpc( rsp )
XMLRPC::Marshal.dump_response( rsp )
end
## http://tapatalk.com/api/api_section.php ##
# First function called by tapatalk, apparently we should always return the
# whole hash.
def xmlrpc_get_config( name = nil )
result = {
"sys_version" => "0.1", # For now
"version" => "dev", # For now
"api_level" => "3", # Maybe?
"is_open" => true, # Set to false to stop working
"guest_ok" => true, # Maybe?
"report_post" => false, # TODO
"report_pm" => false, # TODO
"goto_post" => false, # TODO
"goto_unread" => false, # TODO
"mark_read" => "0", # TODO
"mark_forum" => "0", # TODO
"no_refresh_on_post" => "0", # TODO
"subscribe_forum" => "0", # TODO
"get_latest_topic" => "0", # TODO
"get_id_by_url" => "0", # TODO
"delete_reason" => "0", # TODO
"mod_approve" => "0", # TODO
"mod_delete" => "0", # TODO
"mod_report" => "0", # TODO
"guest_search" => "0", # TODO
"anonymous" => "0", # TODO
"guest_whosonline" => "0", # TODO
"searchid" => "0", # TODO
"avatar" => "0", # TODO
"pm_load" => "0", # TODO
"subscribe_load" => "0", # TODO
"min_search_length" => 3, # Boring default
"inbox_stat" => "0", # TODO
"multi_quote" => "0", # TODO
"default_smilies" => "1", # Probably?
"can_unread" => "0", # Probably
"announcement" => "0", # Probably?
"emoji" => "0", # Probably?
"support_md5" => "0", # TODO
"support_sha1" => "0", # TODO
"conversation" => "0", # TODO
"get_forum" => "1", # No sub-forums in discourse but it needs this anyway
"get_topic_status" => "0", # TODO
"get_participated_forum" => "0", # TODO
"get_forum_status" => "1", # TODO
"get_smilies" => "0", # TODO
"advanced_online_users" => "0", # TODO
"mark_pm_unread" => "0", # Probably?
"advanced_search" => "0", # TODO
"mass_subscribe" => "0", # TODO
"user_id" => "0", # TODO
"advanced_delete" => "0", # TODO
"mark_topic_read" => "0", # TODO
"first_unread" => "0", # TODO
"alert" => "0", # TODO
"direct_unsubscribe" => "0", # TODO
"get_activity" => "0", # TODO
"prefix_edit" => "0", # TODO
"push_type" => "", # TODO - HIGH PRIORITY
"ban_delete_type" => "0", # TODO
"anonymous_login" => "0", # TODO
"search_user" => "0", # TODO
"user_recommend" => "0", # TODO
"inappreg" => "0", # TODO
"inappsignin" => "0", # TODO - HIGH PRIORITY
"ignore_user" => "0" # TODO
}
respond_xmlrpc( result )
end
# Ignore forum_id for now. Naughty naughty.
def xmlrpc_get_forum( return_description = nil, forum_id = nil)
forum_info = discourse.categories({})
category_list = forum_info.fetch( "category_list" )
categories = category_list.fetch( "categories" )
result = categories.collect {|hsh|
tmp = {
'forum_id' => hsh['id'].to_s,
'forum_name' => hsh['name'].to_s, # FIXME: python encodes this to UTF8. Can't be nil
'parent_id' => "-1", # no such thing as sub-categories in Discourse
'sub_only' => false,
# 'child' => [], # Don't return this if we have no children
# 'is_protected' => false, # ?
'is_subscribed' => false, # TODO
'can_subscribe' => false, # TODO
'can_post' => !!category_list["can_create_topic"] # FIXME: this may not be correct!
}
# FIXME: may not be right?
if return_description
tmp['description'] = hsh['description']
end
tmp
}
respond_xmlrpc( result )
end
def xmlrpc_get_topic( forum_id, start_num = 0, last_num = 0, mode = "DATE" )
category = if forum_id == "0" && %w|ANN TOP|.include?(mode)
# In these cases, we're not interested in a particular forum
# TODO! This is for announcements (mode = "ANN")! FIXME!
nil
else
# FIXME: Wasteful!
# Normal-ish mode
# TODO: Need to respect pagination, restrict to just one category
forum_info = discourse.categories({})
category_list = forum_info.fetch( "category_list" )
categories = category_list.fetch( "categories" )
cat = categories.find {|hsh| hsh['id'].to_s == forum_id }
cat['can_create_topic'] = category_list['can_create_topic'] if cat # monkey-patch this in
cat
end
# Null category to handle failure-to-find cases above
category ||= {
'topic_count' => 0,
'id' => forum_id.to_i,
"name" => "",
'can_create_topic' => false,
'topics' => []
}
result = {
'total_topic_num' => category['topic_count'].to_i,
'forum_id' => category['id'].to_s,
'forum_name' => category['name'].to_s,
'can_subscribe' => false, # TODO
'is_subscribed' => false, # TODO
'require_prefix' => false,
'prefixes' => [],
'prefix_id' => "",
'prefix_display_name' => "",
'can_post' => !!category['can_create_topic'], # FIXME: may not be correct!
'can_upload' => false,
'require_prefix' => false,
}
result['topics'] = category['topics'].collect {|hsh|
next if hsh['archived']
tmp = { "forum_id" => category["id"].to_s,
"topic_id" => hsh["id"].to_s,
"topic_title" => hsh["title"].to_s,
"prefix" => "",
"topic_author_id" => "0", # FIXME: This isn't included by discourse?!
"topic_author_name" => "(Unknown)", # FIXME: this either!
"is_subscribed" => false,
"can_subscribe" => false,
"is_closed" => !!hsh["closed"],
"last_reply_time" => make_xmlrpc_datetime( hsh["last_posted_at"] ), # FIXME: Doesn't seem to like being a DateTime?
"reply_number" => category["posts_count"].to_i,
"new_post" => !!category["unseen"],
"view_number" => 0, # FIXME: Isn't included in above
"short_content" => "",
}
## Srs bsns
# if request.headers["Mobiquoid"] == "11"
# tmp["participated_uids"] = []
# end
tmp
}.compact
respond_xmlrpc( result )
end
# def xmlrpc_get_id_by_url( url ) # TODO
# end
def xmlrpc_get_thread( topic_id, start_num = 0, end_num = 0, return_html = false )
topic_info = discourse.topic(:topic_id => topic_id.to_i)
post_stream = topic_info.fetch( "post_stream" )
posts = post_stream.fetch( "posts" )
result = {
"forum_id" => topic_info["category_id"].to_s,
"forum_name" => binary_xmlrpc( "Unknown" ), # FIXME: not returned in topic info, need to pull from cache with forum_id
"forum_title" => binary_xmlrpc( "Unknown" ), # django insists it's called this
"topic_id" => topic_info["id"].to_s,
"topic_title" => binary_xmlrpc( topic_info["title"].to_s ),
"prefix" => "",
"is_subscribed" => false,
"can_subscribe" => false,
"can_reply" => true, # FIXME: ensure this is accurate
"is_approved" => true, # FIXME: wat is das?
"can_upload" => false,
"is_poll" => false,
"is_closed" => !!topic_info["closed"],
"can_report" => false, # TODO
"breadcrumb" => [], # TODO ?
}
result["posts"] = posts.collect {|hsh|
{ "post_id" => hsh["id"].to_s,
"post_title" => binary_xmlrpc( hsh["user_title"].to_s ),
"post_content" => binary_xmlrpc( format_post_content_for_xmlrpc( hsh["cooked"], return_html ) ),
"forum_name" => result["forum_name"], # django says we need this
"forum_id" => result["forum_id"],
"post_author_id" => hsh["user_id"].to_s,
"post_author_name" => binary_xmlrpc( hsh["display_username"].to_s ), # FIXME: display username or real username?
"is_online" => !!hsh["yours"], # TODO: not included in discourse output?
"can_edit" => !!hsh["can_edit"], # TODO
"is_approved" => true, # django again
"icon_url" => make_avatar_url( hsh["avatar_template"] ), # TODO: this is a template, may need formatting
"post_time" => make_xmlrpc_datetime( hsh["updated_at"] ),
"allow_smilies" => true,
"reply_number" => hsh["post_number"].to_i,
"view_count" => hsh["reads"].to_i,
# "attachments" => [], # TODO!
# "thanks_info" => [], # TODO # Probably not needed anyway
# "likes_info" => [], # TODO!
}
}
result["total_post_num"] = result["posts"].count.to_i
respond_xmlrpc( result )
end
# TODO! Very important
def xmlrpc_login( user = nil, pass = nil, anonymous = false, push = '1' )
respond_xmlrpc( 'result' => false, 'result_text' => "Login not implemented yet" )
end
# also TODO
def xmlrpc_logout_user
nil
end
# def get_smilies # TODO - not a priority
# end
end
post "/" do
dispatch
end
post "/mobiquo/mobiquo.php" do
dispatch
end
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