Class: ICC

Inherits:
RPCQooxdooPath show all
Defined in:
lib/qooxview/helpers/icc.rb

Overview

require ‘helper_classes/hashaccessor’

Constant Summary collapse

@@transfers = 
{}

Class Method Summary collapse

Methods inherited from RPCQooxdooPath

inherited, sanitize

Class Method Details

.data_received(tr) ⇒ Object 



118
119
120
121
122
123
124
125
126
127
128
129
130
131
 
# File 'lib/qooxview/helpers/icc.rb', line 118

def self.data_received(tr)
  if tr._method.sub!(/^json@/, '')
    tr._data = JSON.parse(tr._data).first
  end
  entity_name, m = tr._method.split('.')
  method = "icc_#{m}"
  Object.const_get(entity_name)
  if en = Object.const_get(entity_name) # and en.respond_to? method
    dputs(3) { "Sending #{method} to #{entity_name}" }
    en.send(method, tr)
  else
    log_msg :ICC, "Error: Object #{entity_name} has no method #{method}"
  end
end

.get(entity_name, method, args: {}, url: ConfigBase.server_uri) ⇒ Object 



208
209
210
211
212
213
214
215
216
217
218
219
220
 
# File 'lib/qooxview/helpers/icc.rb', line 208

def self.get(entity_name, method, args: {}, url: ConfigBase.server_uri)
  args_json = {icc_data: args.to_json}
  path = URI.parse("#{url}/#{entity_name}/#{method}?#{URI.encode_www_form(args_json)}")
  begin
    ret = JSON::parse(Net::HTTP.get(path))
    method[0] == '_' and ret._msg = Base64::decode64(ret._msg)
    ret
  rescue JSON::ParserError => e
    {code: 'error', msg: "error: #{e}"}
  rescue SocketError => e
    {code: 'error', msg: "Error: timeout #{e}"}
  end
end

.parse_req(req) ⇒ Object 



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
 
# File 'lib/qooxview/helpers/icc.rb', line 23

def self.parse_req(req)
  #dputs(4) { "Request: #{req.inspect}" }
  #dputs_func
  if req.request_method == 'POST'
    path, query, addr = req.path, req.query.to_sym, RPCQooxdooHandler.get_ip(req)
    dputs(4) { "Got query: #{path} - #{query.inspect} - #{addr}" }

    if query._cmdkey == 'start'
      log_msg :ICC, "Got start-query: #{path} - #{query.inspect} - #{addr}"
      d = JSON.parse(query._data).to_sym
      dputs(3) { "d is #{d.inspect}" }
      if (user = Persons.(d._user)) and
          (user.check_pass(d._pass))
        @@transfers[d._tid] = d.merge(:data => [])
        d._chunks > 0 and return self.response('OK', 'send data')
        query._cmdkey = d._tid
        query._data = []
      else
        dputs(3) { "User #{d._user.inspect} with pass #{d._pass.inspect} unknown" }
        return self.response('Error', 'authentication')
      end
    end
    if tr = @@transfers[query._cmdkey]
      counter = query._counter.to_i
      dputs(2) { "Found transfer-id #{query._cmdkey}/"+
          "#{counter+1}/#{tr._chunks} - #{tr._method}" }
      if tr._data[counter]
        dputs(1) { "Received block #{counter} double - discarding" }
      else
        tr._data[counter] = query._data
        if counter == tr._chunks - 1
          tr._data = tr._data.join
          if Digest::MD5.hexdigest(tr._data) == tr._md5
            dputs(1) { "Successfully received cmdkey #{query._cmdkey}" }
            ret = self.response('OK', self.data_received(tr))
          else
            dputs(1) { "cmdkey #{tr._cmdkey} transmitted with errors, " +
                "#{Digest::MD5.hexdigest(tr._data)} instead of #{tr._md5}" }
            ret = self.response('Error', 'wrong MD5')
          end
          @@transfers.delete query._cmdkey
          return ret
        else
          return self.response('OK', "send #{tr._chunks - counter - 1} more chunks")
        end
      end
    end
    return self.response('Error', 'must start or use existing cmdkey')
  else # GET-request
    path = /.*\/([^\/]*)\/([^\/]*)$/.match(req.path)
    dputs(3) { "Path #{req.path} is #{path.inspect}" }
    query = CGI.parse(req.query_string)
    log_msg :ICC, "Got query: #{path.inspect} - #{query}"
    ret = ICC.request(path[1], path[2], query)
    if ret.to_s.length < 512
      log_msg :ICC, "Returning #{ret}"
    else
      log_msg :ICC, "Returning #{JSON.parse(ret)._code}: #{ret.to_s.length} bytes"
    end
    ret
  end
end

.request(entity_name, m, query_json) ⇒ Object 



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
 
# File 'lib/qooxview/helpers/icc.rb', line 86

def self.request(entity_name, m, query_json)
  m =~ /^icc_/ and log_msg :ICC, "Method #{m} includes 'icc_' - probably not what you want"
  binary = m[0] == '_'
  method = "icc_#{m.sub(/^_/, '')}"
  if en = Object.const_get(entity_name)
    dputs(3) { "Sending #{method} to #{entity_name}" }
    query={}
    begin
      query_json.each_pair { |k, v| query[k] = JSON.parse(v.first) }
    rescue JSON::ParserError => e
      dputs(0) { "Error parsing #{query_json}" }
      dputs(0) { "#{e.inspect}" }
      dputs(0) { "#{caller.inspect}" }
      return self.response('Error', log_msg(:ICC, "Object couldn't be parsed"))
    end
    dputs(3) { "Found query #{query.inspect}" }
    if query.has_key?('icc_data')
      query = query._icc_data
      dputs(3) { "Found icc_data in query, is now: #{query.inspect}" }
    end
    msg = en.send(method, query)
    if msg =~ /^Error:/
      self.response('Error', msg)
    else
      self.response('OK', binary ? Base64::encode64(msg.force_encoding(Encoding::ASCII_8BIT)) :
                            msg)
    end
  else
    self.response('Error', log_msg(:ICC, "Object #{entity_name} doesn't exist"))
  end
end

.response(code, msg, json: true) ⇒ Object 



15
16
17
18
19
20
21
 
# File 'lib/qooxview/helpers/icc.rb', line 15

def self.response(code, msg, json: true)
  if json
    {code: code, msg: msg}.to_json
  else
    {code: code, msg: msg}
  end
end

.send_post(url, cmdkey, data, counter: 0, retries: 4) ⇒ Object 



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
 
# File 'lib/qooxview/helpers/icc.rb', line 133

def self.send_post(url, cmdkey, data, counter: 0, retries: 4)
  path = URI.parse(url)
  post = {:cmdkey => cmdkey, :data => data, :counter => counter}
  dputs(3) { "Sending to #{path.inspect}: #{cmdkey}/#{count}" }
  err = self.response('Error', 'Unknown', json: false)
  (1..retries).each { |i|
    begin
      ret = Net::HTTP.post_form(path, post)
      dputs(2) { "Return-value is #{ret.inspect}, #{ret.message}, #{ret.code}, body is #{ret.body}" }
      if ret.code.to_i == 200
        begin
          return JSON.parse(ret.body)
        rescue JSON::ParserError
          dputs(1) { "Couldn't parse #{ret.body}" }
          err._msg = 'Reply parse-error'
          sleep 5
        end
      else
        dputs(1) { "Error-reply was #{ret.inspect}" }
        err._msg = "Error: #{ret.code}:#{ret.message}"
        sleep 5
      end
    rescue Timeout::Error
      dputs(1) { 'Timeout occured' }
      err._msg = 'Timeout occured'
    rescue Errno::ECONNRESET
      dputs(1) { 'Connection reset' }
      err._msg = 'Connection reset'
    end
  }
  return err
end

.transfer(login, method, transfer = '', url: ConfigBase.server_uri, json: true, &percent) ⇒ Object 



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
195
196
197
198
199
200
201
202
203
204
205
206
 
# File 'lib/qooxview/helpers/icc.rb', line 166

def self.transfer(, method, transfer = '', url: ConfigBase.server_uri, json: true,
    &percent)
  block_size = ConfigBase.block_size.to_i
  if block_size < 128
    dputs(0) { "Unacceptable block-size of #{block_size}" }
    return self.response('Error', 'No block-size', json: false)
  end
  if json
    method.prepend 'json@'
    transfer = [transfer].to_json
  end

  transfer_md5 = Digest::MD5.hexdigest(transfer)
  t_array = []
  while t_array.length * block_size < transfer.length
    start = (block_size * t_array.length)
    t_array.push transfer[start..(start+block_size -1)]
  end
  dputs(2) { "Transfer-size is #{transfer.size} and cut up in "+
      "#{t_array.size} pieces of #{block_size} length" }

  dputs(3) { "Going to transfer: #{t_array.inspect}" }
  percent and percent.call('0%')
  tid = Digest::MD5.hexdigest(rand.to_s)
  ret = ICC.send_post(url, :start,
                      {:method => method, :chunks => t_array.length,
                       :md5 => transfer_md5, :tid => tid,
                       :user => ., :pass => .password_plain}.to_json)
  return ret if ret._code == 'Error'
  t_array.each_index { |i|
    if percent
      p = "#{((i+1) * 100 / t_array.length).floor}%"
      percent.call p
      dputs(3) { "Percentage done: #{p}" }
    end
    dputs(2) { "Sending id #{tid}/#{i+1}" }
    ret = ICC.send_post(url, tid, t_array[i], counter: i)
    return ret if ret =~ /^Error:/
  }
  return ret
end