return unless TITLE_RE.match(pagedata)
title = $1.strip.gsub(/\s*\n+\s*/, " ")
title = Utils.decode_html_entities title
- title = title[0..255] if title.length > 255
- "[Link Info] title: #{title}"
+ "title: #{title}"
end
- def read_data_from_response(response, amount)
+ def get_title_for_url(uri_str)
- amount_read = 0
- chunks = []
-
- response.read_body do |chunk| # read body now
-
- amount_read += chunk.length
-
- # if amount_read > amount
- # amount_of_overflow = amount_read - amount
- # chunk = chunk[0...-amount_of_overflow]
- # end
-
- chunks << chunk
-
- break if amount_read >= amount
-
- end
-
- chunks.join('')
-
- end
-
- def get_title_for_url(uri_str, depth=@bot.config['http.max_redir'])
- # This god-awful mess is what the ruby http library has reduced me to.
- # Python's HTTP lib is so much nicer. :~(
-
- if depth == 0
- raise "Error: Maximum redirects hit."
- end
-
- debug "+ Getting #{uri_str.to_s}"
url = uri_str.kind_of?(URI) ? uri_str : URI.parse(uri_str)
return if url.scheme !~ /https?/
title = nil
- debug "+ connecting to #{url.host}:#{url.port}"
- http = @bot.httputil.get_proxy(url)
- http.start { |http|
-
- http.request_get(url.request_uri(), @bot.httputil.headers) { |response|
-
+ begin
+ @bot.httputil.get_response(url) { |response|
case response
- when Net::HTTPRedirection
- # call self recursively if this is a redirect
- redirect_to = response['location'] || '/'
- debug "+ redirect location: #{redirect_to.inspect}"
- url = URI.join(url.to_s, redirect_to)
- debug "+ whee, redirecting to #{url.to_s}!"
- return get_title_for_url(url, depth-1)
- when Net::HTTPSuccess
- if response['content-type'] =~ /^text\//
- # since the content is 'text/*' and is small enough to
- # be a webpage, retrieve the title from the page
- debug "+ getting #{url.request_uri}"
- # was 5*10^4 ... seems to much to me ... 4k should be enough for everybody ;)
- data = read_data_from_response(response, 4096)
- return get_title_from_html(data)
- else
- unless @bot.config['url.titles_only']
- # content doesn't have title, just display info.
- size = response['content-length'].gsub(/(\d)(?=\d{3}+(?:\.|$))(\d{3}\..*)?/,'\1,\2')
- size = size ? ", size: #{size} bytes" : ""
- return "[Link Info] type: #{response['content-type']}#{size}"
- end
- end
+ when Net::HTTPSuccess
+ if response['content-type'] =~ /^text\//
+ # since the content is 'text/*' and is small enough to
+ # be a webpage, retrieve the title from the page
+ debug "+ getting #{url.request_uri}"
+
+ # we look for the title in the first 4k bytes
+ # TODO make the amount of data configurable
+ response.partial_body(4096) { |part|
+ title = get_title_from_html(part)
+ return title if title
+ }
+ # if nothing was found, return nothing
+ return
else
- return "[Link Info] Error getting link (#{response.code} - #{response.message})"
- end # end of "case response"
-
- } # end of request block
- } # end of http start block
-
- return title
+ unless @bot.config['url.titles_only']
+ # content doesn't have title, just display info.
+ size = response['content-length'].gsub(/(\d)(?=\d{3}+(?:\.|$))(\d{3}\..*)?/,'\1,\2')
+ size = size ? ", size: #{size} bytes" : ""
+ return "type: #{response['content-type']}#{size}"
+ end
+ end
+ when Net::HTTPResponse
+ return "Error getting link (#{response.code} - #{response.message})"
+ else
+ raise response
+ end
+ }
+ rescue Object => e
+ if e.class <= StandardError
+ error e.inspect
+ debug e.backtrace.join("\n")
+ end
- rescue SocketError => e
- return "[Link Info] Error connecting to site (#{e.message})"
+ msg = e.respond_to?(:message) ? e.message : e.to_s
+ return "Error connecting to site (#{e.message})"
+ end
end
def listen(m)
list = @registry[m.target]
if @bot.config['url.display_link_info']
- debug "Getting title for #{urlstr}..."
- begin
- title = get_title_for_url urlstr
- if title
- m.reply title
- debug "Title found!"
- else
- debug "Title not found!"
- end
- rescue => e
- debug "Failed: #{e}"
+ Thread.start do
+ debug "Getting title for #{urlstr}..."
+ begin
+ title = get_title_for_url urlstr
+ if title
+ m.reply "[Link Info] #{title}"
+ debug "Title found!"
+ else
+ debug "Title not found!"
+ end
+ rescue => e
+ debug "Failed: #{e}"
+ end
end
end
# Copyright:: (C) 2006 Tom Gilbert, Giuseppe Bilotta
# Copyright:: (C) 2006,2007 Giuseppe Bilotta
-module ::Irc
-module Utils
-
require 'resolv'
require 'net/http'
begin
error "Secured HTTP connections will fail"
end
+module ::Net
+ class HTTPResponse
+ # Read chunks from the body until we have at least _size_ bytes, yielding
+ # the partial text at each chunk. Return the partial body.
+ def partial_body(size, &block)
+
+ partial = String.new
+
+ self.read_body { |chunk|
+ partial << chunk
+ yield partial
+ break if size and partial.length >= size
+ }
+
+ return partial
+ end
+ end
+end
+
Net::HTTP.version_1_2
+module ::Irc
+module Utils
+
# class for making http requests easier (mainly for plugins to use)
# this class can check the bot proxy configuration to determine if a proxy
# needs to be used, which includes support for per-url proxy configuration.
return nil
end
+ # uri:: uri to query (Uri object or String)
+ # opts:: options. Currently used:
+ # :open_timeout:: open timeout for the proxy
+ # :read_timeout:: read timeout for the proxy
+ # :cache:: should we cache results?
+ #
+ # This method is used to get responses following redirections.
+ #
+ # It will return either a Net::HTTPResponse or an error.
+ #
+ # If a block is given, it will yield the response or error instead of
+ # returning it
+ #
+ def get_response(uri_or_str, opts={}, &block)
+ if uri_or_str.kind_of?(URI)
+ uri = uri_or_str
+ else
+ uri = URI.parse(uri_or_str.to_s)
+ end
+ debug "Getting #{uri}"
+
+ options = {
+ :read_timeout => 10,
+ :open_timeout => 5,
+ :max_redir => @bot.config["http.max_redir"],
+ :cache => false,
+ :yield => :none
+ }.merge(opts)
+
+ cache = options[:cache]
+
+ proxy = get_proxy(uri)
+ proxy.open_timeout = options[:open_timeout]
+ proxy.read_timeout = options[:read_timeout]
+
+ begin
+ proxy.start() {|http|
+ req = Net::HTTP::Get.new(uri.request_uri(), @headers)
+ if uri.user and uri.password
+ req.basic_auth(uri.user, uri.password)
+ end
+ http.request(req) { |resp|
+ case resp
+ when Net::HTTPSuccess
+ if cache
+ debug "Caching #{uri.to_s}"
+ cache_response(uri.to_s, resp)
+ end
+ when Net::HTTPRedirection
+ if resp.key?('location')
+ new_loc = URI.join(uri, resp['location']) rescue URI.parse(resp['location'])
+ debug "Redirecting #{uri} to #{new_loc}"
+ if options[:max_redir] > 0
+ new_opts = options.dup
+ new_opts[:max_redir] -= 1
+ return get_response(new_loc, new_opts, &block)
+ else
+ raise "Too many redirections"
+ end
+ end
+ end
+ if block_given?
+ yield resp
+ else
+ return resp
+ end
+ }
+ }
+ rescue StandardError, Timeout::Error => e
+ error "HttpUtil.get_response exception: #{e.inspect}, while trying to get #{uri}"
+ debug e.backtrace.join("\n")
+ def e.body
+ nil
+ end
+ if block_given?
+ yield e
+ else
+ return e
+ end
+ end
+
+ raise "This shouldn't happen"
+ end
+
def cache_response(k, resp)
begin
if resp.key?('pragma') and resp['pragma'] == 'no-cache'
projects / user / henk / code / ruby / rbot.git / commitdiff