1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
require 'uri'
Url = Struct.new("Url", :channel, :nick, :time, :url)
TITLE_RE = /<\s*?title\s*?>(.+?)<\s*?\/title\s*?>/im
class UrlPlugin < Plugin
BotConfig.register BotConfigIntegerValue.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 BotConfigBooleanValue.new('url.display_link_info',
:default => false,
:desc => "Get the title of any links pasted to the channel and display it (also tells if the link is broken or the site is down)")
def initialize
super
@registry.set_default(Array.new)
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>"
end
def get_title_from_html(pagedata)
return unless TITLE_RE.match(pagedata)
title = $1.strip.gsub(/\s*\n+\s*/, " ")
title = Utils.decode_html_entities title
title = title[0..255] if title.length > 255
"[Link Info] title: #{title}"
end
def read_data_from_response(response, amount)
amount_read = 0
chunks = []
response.read_body do |chunk| # read body now
amount_read += chunk.length
if amount_read > amount
amount_of_overflow = amount_read - amount
chunk = chunk[0...-amount_of_overflow]
end
chunks << chunk
break if amount_read >= amount
end
chunks.join('')
end
def get_title_for_url(uri_str, depth=@bot.config['http.max_redir'])
# This god-awful mess is what the ruby http library has reduced me to.
# Python's HTTP lib is so much nicer. :~(
if depth == 0
raise "Error: Maximum redirects hit."
end
debug "+ Getting #{uri_str.to_s}"
url = uri_str.kind_of?(URI) ? uri_str : URI.parse(uri_str)
return if url.scheme !~ /https?/
title = nil
debug "+ connecting to #{url.host}:#{url.port}"
http = @bot.httputil.get_proxy(url)
http.start { |http|
http.request_get(url.request_uri(), @bot.httputil.headers) { |response|
case response
when Net::HTTPRedirection
# call self recursively if this is a redirect
redirect_to = response['location'] || '/'
debug "+ redirect location: #{redirect_to.inspect}"
url = URI.join(url.to_s, redirect_to)
debug "+ whee, redirecting to #{url.to_s}!"
return get_title_for_url(url, depth-1)
when Net::HTTPSuccess
if response['content-type'] =~ /^text\//
# since the content is 'text/*' and is small enough to
# be a webpage, retrieve the title from the page
debug "+ getting #{url.request_uri}"
# was 5*10^4 ... seems to much to me ... 4k should be enough for everybody ;)
data = read_data_from_response(response, 4096)
return get_title_from_html(data)
else
# content doesn't have title, just display info.
size = response['content-length'].gsub(/(\d)(?=\d{3}+(?:\.|$))(\d{3}\..*)?/,'\1,\2')
size = size ? ", size: #{size} bytes" : ""
return "[Link Info] type: #{response['content-type']}#{size}"
end
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
rescue SocketError => e
return "[Link Info] Error connecting to site (#{e.message})"
end
def listen(m)
return unless m.kind_of?(PrivMessage)
return if m.address?
# TODO support multiple urls in one line
if m.message =~ /(f|ht)tps?:\/\//
if m.message =~ /((f|ht)tps?:\/\/.*?)(?:\s+|$)/
urlstr = $1
list = @registry[m.target]
if @bot.config['url.display_link_info']
debug "Getting title for #{urlstr}..."
title = get_title_for_url urlstr
if title
m.reply title
debug "Title found!"
else
debug "Title not found!"
end
end
# check to see if this url is already listed
return if list.find {|u| u.url == urlstr }
url = Url.new(m.target, m.sourcenick, Time.new, urlstr)
debug "#{list.length} urls so far"
if list.length > @bot.config['url.max_urls']
list.pop
end
debug "storing url #{url.url}"
list.unshift url
debug "#{list.length} urls now"
@registry[m.target] = list
end
end
end
def urls(m, params)
channel = params[:channel] ? params[:channel] : m.target
max = params[:limit].to_i
max = 10 if max > 10
max = 1 if max < 1
list = @registry[channel]
if list.empty?
m.reply "no urls seen yet for channel #{channel}"
else
list[0..(max-1)].each do |url|
m.reply "[#{url.time.strftime('%Y/%m/%d %H:%M:%S')}] <#{url.nick}> #{url.url}"
end
end
end
def search(m, params)
channel = params[:channel] ? params[:channel] : m.target
max = params[:limit].to_i
string = params[:string]
max = 10 if max > 10
max = 1 if max < 1
regex = Regexp.new(string, Regexp::IGNORECASE)
list = @registry[channel].find_all {|url|
regex.match(url.url) || regex.match(url.nick)
}
if list.empty?
m.reply "no matches for channel #{channel}"
else
list[0..(max-1)].each do |url|
m.reply "[#{url.time.strftime('%Y/%m/%d %H:%M:%S')}] <#{url.nick}> #{url.url}"
end
end
end
end
plugin = UrlPlugin.new
plugin.map 'urls search :channel :limit :string', :action => 'search',
:defaults => {:limit => 4},
:requirements => {:limit => /^\d+$/},
:public => false
plugin.map 'urls search :limit :string', :action => 'search',
:defaults => {:limit => 4},
:requirements => {:limit => /^\d+$/},
:private => false
plugin.map 'urls :channel :limit', :defaults => {:limit => 4},
:requirements => {:limit => /^\d+$/},
:public => false
plugin.map 'urls :limit', :defaults => {:limit => 4},
:requirements => {:limit => /^\d+$/},
:private => false
|
