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- Revision:
- 193
- Log:
First stage commit of Typo 4.1, modified for the ROOL site.
Includes all local modifications but a final pass needs to be
made to delete any files left over from earlier Typo versions
that shouldn't be here anymore. See the 'tags' section of the
repository for a clean Typo 4.1 tree.Note that symlinks to shared files in the RISC OS Open theme
directory have been deliberately included this time around; I
decided that on balance it was better to leave them in as
placeholders, since unlike symlinks in app/views/shared, the
Typo theme structure is not a standard Rails concept.
- Author:
- rool
- Date:
- Wed Apr 04 18:51:02 +0100 2007
- Size:
- 3040 Bytes
| 1 | require 'rexml/document' |
| 2 | |
| 3 | class Ping < ActiveRecord::Base |
| 4 | belongs_to :article |
| 5 | |
| 6 | class Pinger |
| 7 | attr_accessor :article |
| 8 | attr_accessor :blog |
| 9 | |
| 10 | def send_pingback_or_trackback |
| 11 | begin |
| 12 | @response = Net::HTTP.get_response(URI.parse(ping.url)) |
| 13 | send_pingback or send_trackback |
| 14 | rescue Timeout::Error => err |
| 15 | return |
| 16 | rescue => err |
| 17 | raise err |
| 18 | # Ignore |
| 19 | end |
| 20 | end |
| 21 | |
| 22 | def pingback_url |
| 23 | if @response["X-Pingback"] |
| 24 | @response["X-Pingback"] |
| 25 | elsif |
| 26 | response.body =~ /<link rel="pingback" href="([^"]+)" ?\/?>/ |
| 27 | $1 |
| 28 | else |
| 29 | nil |
| 30 | end |
| 31 | end |
| 32 | |
| 33 | def origin_url |
| 34 | @origin_url |
| 35 | end |
| 36 | |
| 37 | def response |
| 38 | @response |
| 39 | end |
| 40 | |
| 41 | def ping |
| 42 | @ping |
| 43 | end |
| 44 | |
| 45 | def send_xml_rpc(*args) |
| 46 | ping.send(:send_xml_rpc, *args) |
| 47 | end |
| 48 | |
| 49 | def trackback_url |
| 50 | rdfs = response.body.scan(/<rdf:RDF.*?<\/rdf:RDF>/m) |
| 51 | rdfs.each do |rdf| |
| 52 | xml = REXML::Document.new(rdf) |
| 53 | xml.elements.each("//rdf:Description") do |desc| |
| 54 | if rdfs.size == 1 || desc.attributes["dc:identifier"] == ping.url |
| 55 | return desc.attributes["trackback:ping"] |
| 56 | end |
| 57 | end |
| 58 | end |
| 59 | # Didn't find a trackback url, so fall back to the url itself. |
| 60 | @ping.url |
| 61 | end |
| 62 | |
| 63 | def send_pingback |
| 64 | if pingback_url |
| 65 | send_xml_rpc(pingback_url, "pingback.ping", origin_url, ping.url) |
| 66 | return true |
| 67 | else |
| 68 | return false |
| 69 | end |
| 70 | end |
| 71 | |
| 72 | def send_trackback |
| 73 | ping.send_trackback(trackback_url, origin_url) |
| 74 | end |
| 75 | |
| 76 | private |
| 77 | |
| 78 | def initialize(origin_url, ping) |
| 79 | @origin_url = origin_url |
| 80 | @ping = ping |
| 81 | # Make sure these are fetched now for thread safety purposes. |
| 82 | self.article = ping.article |
| 83 | self.blog = article.blog |
| 84 | end |
| 85 | end |
| 86 | |
| 87 | def send_pingback_or_trackback(origin_url) |
| 88 | Pinger.new(origin_url, self).send_pingback_or_trackback |
| 89 | end |
| 90 | |
| 91 | def send_trackback(trackback_url, origin_url) |
| 92 | trackback_uri = URI.parse(trackback_url) |
| 93 | |
| 94 | post = "title=#{CGI.escape(article.title)}" |
| 95 | post << "&excerpt=#{CGI.escape(article.html(:body).strip_html[0..254])}" |
| 96 | post << "&url=#{origin_url}" |
| 97 | post << "&blog_name=#{CGI.escape(article.blog.blog_name)}" |
| 98 | |
| 99 | Net::HTTP.start(trackback_uri.host, trackback_uri.port) do |http| |
| 100 | path = trackback_uri.path |
| 101 | path += "?#{trackback_uri.query}" if trackback_uri.query |
| 102 | http.post(path, post, 'Content-type' => 'application/x-www-form-urlencoded; charset=utf-8') |
| 103 | end |
| 104 | end |
| 105 | |
| 106 | def send_weblogupdatesping(server_url, origin_url) |
| 107 | send_xml_rpc(self.url, "weblogUpdates.ping", article.blog.blog_name, |
| 108 | server_url, origin_url) |
| 109 | end |
| 110 | |
| 111 | protected |
| 112 | |
| 113 | def send_xml_rpc(xml_rpc_url, name, *args) |
| 114 | begin |
| 115 | server = XMLRPC::Client.new2(URI.parse(xml_rpc_url).to_s) |
| 116 | |
| 117 | begin |
| 118 | result = server.call(name, *args) |
| 119 | rescue XMLRPC::FaultException => e |
| 120 | logger.error(e) |
| 121 | end |
| 122 | rescue Exception => e |
| 123 | logger.error(e) |
| 124 | end |
| 125 | end |
| 126 | end |
