define_structure :Url, :channel, :nick, :time, :url, :info
-class ::UrlLinkError < RuntimeError
-end
-
class UrlPlugin < Plugin
- TITLE_RE = /<\s*?title\s*?>(.+?)<\s*?\/title\s*?>/im
LINK_INFO = "[Link Info]"
OUR_UNSAFE = Regexp.new("[^#{URI::PATTERN::UNRESERVED}#{URI::PATTERN::RESERVED}%# ]", false, 'N')
- BotConfig.register BotConfigIntegerValue.new('url.max_urls',
+ Config.register Config::IntegerValue.new('url.max_urls',
:default => 100, :validate => Proc.new{|v| v > 0},
:desc => "Maximum number of urls to store. New urls replace oldest ones.")
- BotConfig.register BotConfigIntegerValue.new('url.display_link_info',
+ Config.register Config::IntegerValue.new('url.display_link_info',
:default => 0,
:desc => "Get the title of links pasted to the channel and display it (also tells if the link is broken or the site is down). Do it for at most this many links per line (set to 0 to disable)")
- BotConfig.register BotConfigBooleanValue.new('url.titles_only',
+ Config.register Config::BooleanValue.new('url.titles_only',
:default => false,
:desc => "Only show info for links that have <title> tags (in other words, don't display info for jpegs, mpegs, etc.)")
- BotConfig.register BotConfigBooleanValue.new('url.first_par',
+ Config.register Config::BooleanValue.new('url.first_par',
:default => false,
:desc => "Also try to get the first paragraph of a web page")
- BotConfig.register BotConfigBooleanValue.new('url.info_on_list',
+ Config.register Config::BooleanValue.new('url.info_on_list',
:default => false,
:desc => "Show link info when listing/searching for urls")
- BotConfig.register BotConfigArrayValue.new('url.no_info_hosts',
+ Config.register Config::ArrayValue.new('url.no_info_hosts',
:default => ['localhost', '^192\.168\.', '^10\.', '^127\.', '^172\.(1[6-9]|2\d|31)\.'],
:on_change => Proc.new { |bot, v| bot.plugins['url'].reset_no_info_hosts },
:desc => "A list of regular expressions matching hosts for which no info should be provided")
end
def help(plugin, topic="")
- "urls [<max>=4] => list <max> last urls mentioned in current channel, urls search [<max>=4] <regexp> => search for matching urls. In a private message, you must specify the channel to query, eg. urls <channel> [max], urls search <channel> [max] <regexp>"
+ "url info <url> => display link info for <url> (set url.display_link_info > 0 if you want the bot to do it automatically when someone writes an url), urls [<max>=4] => list <max> last urls mentioned in current channel, urls search [<max>=4] <regexp> => search for matching urls. In a private message, you must specify the channel to query, eg. urls <channel> [max], urls search <channel> [max] <regexp>"
end
def get_title_from_html(pagedata)
- return unless TITLE_RE.match(pagedata)
- $1.ircify_html
+ return pagedata.ircify_html_title
end
- def get_title_for_url(uri_str, nick = nil, channel = nil, ircline = nil)
+ def get_title_for_url(uri_str, opts = {})
url = uri_str.kind_of?(URI) ? uri_str : URI.parse(uri_str)
return if url.scheme !~ /https?/
- if url.host =~ @no_info_hosts
- return "Sorry, info retrieval for #{url.host} is disabled"
+ # also check the ip, the canonical name and the aliases
+ begin
+ checks = TCPSocket.gethostbyname(url.host)
+ checks.delete_at(-2)
+ rescue => e
+ return "Unable to retrieve info for #{url.host}: #{e.message}"
end
- logopts = Hash.new
- logopts[:nick] = nick if nick
- logopts[:channel] = channel if channel
- logopts[:ircline] = ircline if ircline
+ checks << url.host
+ checks.flatten!
+
+ unless checks.grep(@no_info_hosts).empty?
+ return "Sorry, info retrieval for #{url.host} (#{checks.first}) is disabled"
+ end
+
+ logopts = opts.dup
title = nil
- extra = String.new
+ extra = []
begin
- debug "+ getting #{url.request_uri}"
- @bot.httputil.get_response(url) { |resp|
- case resp
- when Net::HTTPSuccess
-
- debug resp.to_hash
-
- if resp['content-type'] =~ /^text\/|(?:x|ht)ml/
- # The page is text or HTML, so we can try finding a title and, if
- # requested, the first par.
- #
- # We act differently depending on whether we want the first par or
- # not: in the first case we download the initial part and the parse
- # it; in the second case we only download as much as we need to find
- # the title
- #
- if @bot.config['url.first_par']
- partial = resp.partial_body(@bot.config['http.info_bytes'])
- logopts[:title] = title = get_title_from_html(partial)
- if url.fragment and not url.fragment.empty?
- fragreg = /.*?<a\s+[^>]*name=["']?#{url.fragment}["']?.*?>/im
- partial.sub!(fragreg,'')
- end
- first_par = Utils.ircify_first_html_par(partial, :strip => title)
- unless first_par.empty?
- logopts[:extra] = first_par
- extra << ", #{Bold}text#{Bold}: #{first_par}"
- end
- call_event(:url_added, url.to_s, logopts)
- return "#{Bold}title#{Bold}: #{title}#{extra}" if title
- else
- resp.partial_body(@bot.config['http.info_bytes']) { |part|
- logopts[:title] = title = get_title_from_html(part)
- call_event(:url_added, url.to_s, logopts)
- return "#{Bold}title#{Bold}: #{title}" if title
- }
- end
- # if nothing was found, provide more basic info, as for non-html pages
- else
- resp.no_cache = true
- end
+ debug "+ getting info for #{url.request_uri}"
+ info = @bot.filter(:htmlinfo, url)
+ debug info
+ resp = info[:headers]
- enc = resp['content-encoding']
- logopts[:extra] = String.new
- logopts[:extra] << "Content Type: #{resp['content-type']}"
- if enc
- logopts[:extra] << ", encoding: #{enc}"
- extra << ", #{Bold}encoding#{Bold}: #{enc}"
- end
+ logopts[:title] = title = info[:title]
- unless @bot.config['url.titles_only']
- # content doesn't have title, just display info.
- size = resp['content-length'].gsub(/(\d)(?=\d{3}+(?:\.|$))(\d{3}\..*)?/,'\1,\2') rescue nil
- if size
- logopts[:extra] << ", size: #{size} bytes"
- size = ", #{Bold}size#{Bold}: #{size} bytes"
- end
- call_event(:url_added, url.to_s, logopts)
- return "#{Bold}type#{Bold}: #{resp['content-type']}#{size}#{extra}"
- end
- call_event(:url_added, url.to_s, logopts)
- else
- raise UrlLinkError, "getting link (#{resp.code} - #{resp.message})"
+ if info[:content]
+ logopts[:extra] = info[:content]
+ extra << "#{Bold}text#{Bold}: #{info[:content]}" if @bot.config['url.first_par']
+ else
+ logopts[:extra] = String.new
+ logopts[:extra] << "Content Type: #{resp['content-type']}"
+ extra << "#{Bold}type#{Bold}: #{resp['content-type']}" unless title
+ if enc = resp['content-encoding']
+ logopts[:extra] << ", encoding: #{enc}"
+ extra << "#{Bold}encoding#{Bold}: #{enc}" if @bot.config['url.first_par'] or not title
end
- }
- return nil
+
+ size = resp['content-length'].first.gsub(/(\d)(?=\d{3}+(?:\.|$))(\d{3}\..*)?/,'\1,\2') rescue nil
+ if size
+ logopts[:extra] << ", size: #{size} bytes"
+ extra << "#{Bold}size#{Bold}: #{size} bytes" if @bot.config['url.first_par'] or not title
+ end
+ end
rescue Exception => e
case e
when UrlLinkError
raise "connecting to site/processing information (#{e.message})"
end
end
+
+ call_event(:url_added, url.to_s, logopts)
+ if title
+ extra.unshift("#{Bold}title#{Bold}: #{title}")
+ end
+ return extra.join(", ") if title or not @bot.config['url.titles_only']
end
def handle_urls(m, urls, display_info=@bot.config['url.display_link_info'])
return if urls.empty?
debug "found urls #{urls.inspect}"
- if m.public?
- list = @registry[m.target]
- else
- list = nil
- end
+ list = m.public? ? @registry[m.target] : nil
+ debug "display link info: #{display_info}"
urls_displayed = 0
- urls.each { |urlstr|
+ urls.each do |urlstr|
debug "working on #{urlstr}"
next unless urlstr =~ /^https?:/
title = nil
- debug "display link info: #{display_info}"
+ debug "Getting title for #{urlstr}..."
+ reply = nil
+ begin
+ title = get_title_for_url(urlstr,
+ :nick => m.source.nick,
+ :channel => m.channel,
+ :ircline => m.message)
+ debug "Title #{title ? '' : 'not '} found"
+ reply = "#{LINK_INFO} #{title}" if title
+ rescue => e
+ debug e
+ # we might get a 404 because of trailing punctuation, so we try again
+ # with the last character stripped. this might generate invalid URIs
+ # (e.g. because "some.url" gets chopped to some.url%2, so catch that too
+ if e.message =~ /\(404 - Not Found\)/i or e.kind_of?(URI::InvalidURIError)
+ # chop off last character, and retry if we still have enough string to
+ # look like a minimal URL
+ retry if urlstr.chop! and urlstr =~ /^https?:\/\/./
+ end
+ reply = "Error #{e.message}"
+ end
+
if display_info > urls_displayed
- urls_displayed += 1
- Thread.start do
- debug "Getting title for #{urlstr}..."
- begin
- title = get_title_for_url urlstr, m.source.nick, m.channel, m.message
- if title
- m.reply "#{LINK_INFO} #{title}", :overlong => :truncate
- debug "Title found!"
- else
- debug "Title not found!"
- end
- rescue => e
- m.reply "Error #{e.message}"
- end
+ if reply
+ m.plainreply(reply, :overlong => :truncate)
+ urls_displayed += 1
end
end
url = Url.new(m.target, m.sourcenick, Time.new, urlstr, title)
debug "#{list.length} urls so far"
- if list.length > @bot.config['url.max_urls']
- list.pop
- end
+ list.pop if list.length > @bot.config['url.max_urls']
debug "storing url #{url.url}"
list.unshift url
debug "#{list.length} urls now"
- }
+ end
@registry[m.target] = list
end
def info(m, params)
escaped = URI.escape(params[:urls].to_s, OUR_UNSAFE)
urls = URI.extract(escaped)
- handle_urls(m, urls, params[:urls].length)
+ Thread.new { handle_urls(m, urls, params[:urls].length) }
end
def listen(m)
return if m.address?
escaped = URI.escape(m.message, OUR_UNSAFE)
- urls = URI.extract(escaped)
- handle_urls(m, urls)
+ urls = URI.extract(escaped, ['http', 'https'])
+ return if urls.empty?
+ Thread.new { handle_urls(m, urls) }
end
def reply_urls(opts={})
list[0..(max-1)].each do |url|
disp = "[#{url.time.strftime('%Y/%m/%d %H:%M:%S')}] <#{url.nick}> #{url.url}"
if @bot.config['url.info_on_list']
- title = url.info || get_title_for_url(url.url, url.nick, channel) rescue nil
+ title = url.info ||
+ get_title_for_url(url.url,
+ :nick => url.nick, :channel => channel) rescue nil
# If the url info was missing and we now have some, try to upgrade it
if channel and title and not url.info
ll = @registry[channel]
plugin = UrlPlugin.new
plugin.map 'urls info *urls', :action => 'info'
+plugin.map 'url info *urls', :action => 'info'
plugin.map 'urls search :channel :limit :string', :action => 'search',
:defaults => {:limit => 4},
:requirements => {:limit => /^\d+$/},
projects / user / henk / code / ruby / rbot.git / blobdiff