summaryrefslogtreecommitdiffstats
path: root/lualib/rspamadm/corpus_test.lua
blob: 0e63f9f6fce2cca6476dd56c10ea4aa3d4440058 (plain)
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
local rspamd_logger = require "rspamd_logger"
local ucl = require "ucl"
local lua_util = require "lua_util"
local argparse = require "argparse"

local parser = argparse()
    :name "rspamadm corpus_test"
    :description "Create logs files from email corpus"
    :help_description_margin(32)

parser:option "-H --ham"
      :description("Ham directory")
      :argname("<dir>")
parser:option "-S --spam"
      :description("Spam directory")
      :argname("<dir>")
parser:option "-n --conns"
      :description("Number of parallel connections")
      :argname("<N>")
      :convert(tonumber)
      :default(10)
parser:option "-o --output"
      :description("Output file")
      :argname("<file>")
      :default('results.log')
parser:option "-t --timeout"
      :description("Timeout for client connections")
      :argname("<sec>")
      :convert(tonumber)
      :default(60)
parser:option "-c --connect"
      :description("Connect to specific host")
      :argname("<host>")
      :default('localhost:11334')
parser:option "-r --rspamc"
      :description("Use specific rspamc path")
      :argname("<path>")
      :default('rspamc')

local HAM = "HAM"
local SPAM = "SPAM"
local opts

local function scan_email(n_parallel, path, timeout)

  local rspamc_command = string.format("%s --connect %s -j --compact -n %s -t %.3f %s",
      opts.rspamc, opts.connect, n_parallel, timeout, path)
  local result = assert(io.popen(rspamc_command))
  result = result:read("*all")
  return result
end

local function write_results(results, file)

  local f = io.open(file, 'w')

  for _, result in pairs(results) do
    local log_line = string.format("%s %.2f %s",
        result.type, result.score, result.action)

    for _, sym in pairs(result.symbols) do
      log_line = log_line .. " " .. sym
    end

    log_line = log_line .. " " .. result.scan_time .. " " .. file .. ':' .. result.filename

    log_line = log_line .. "\r\n"

    f:write(log_line)
  end

  f:close()
end

local function encoded_json_to_log(result)
  -- Returns table containing score, action, list of symbols

  local filtered_result = {}
  local ucl_parser = ucl.parser()

  local is_good, err = ucl_parser:parse_string(result)

  if not is_good then
    rspamd_logger.errx("Parser error: %1", err)
    return nil
  end

  result = ucl_parser:get_object()

  filtered_result.score = result.score
  if not result.action then
    rspamd_logger.errx("Bad JSON: %1", result)
    return nil
  end
  local action = result.action:gsub("%s+", "_")
  filtered_result.action = action

  filtered_result.symbols = {}

  for sym, _ in pairs(result.symbols) do
    table.insert(filtered_result.symbols, sym)
  end

  filtered_result.filename = result.filename
  filtered_result.scan_time = result.scan_time

  return filtered_result
end

local function scan_results_to_logs(results, actual_email_type)

  local logs = {}

  results = lua_util.rspamd_str_split(results, "\n")

  if results[#results] == "" then
    results[#results] = nil
  end

  for _, result in pairs(results) do
    result = encoded_json_to_log(result)
    if result then
      result['type'] = actual_email_type
      table.insert(logs, result)
    end
  end

  return logs
end

local function handler(args)
  opts = parser:parse(args)
  local ham_directory = opts['ham']
  local spam_directory = opts['spam']
  local connections = opts["conns"]
  local output = opts["output"]

  local results = {}

  local start_time = os.time()
  local no_of_ham = 0
  local no_of_spam = 0

  if ham_directory then
    rspamd_logger.messagex("Scanning ham corpus...")
    local ham_results = scan_email(connections, ham_directory, opts["timeout"])
    ham_results = scan_results_to_logs(ham_results, HAM)

    no_of_ham = #ham_results

    for _, result in pairs(ham_results) do
      table.insert(results, result)
    end
  end

  if spam_directory then
    rspamd_logger.messagex("Scanning spam corpus...")
    local spam_results = scan_email(connections, spam_directory, opts.timeout)
    spam_results = scan_results_to_logs(spam_results, SPAM)

    no_of_spam = #spam_results

    for _, result in pairs(spam_results) do
      table.insert(results, result)
    end
  end

  rspamd_logger.messagex("Writing results to %s", output)
  write_results(results, output)

  rspamd_logger.messagex("Stats: ")
  local elapsed_time = os.time() - start_time
  local total_msgs = no_of_ham + no_of_spam
  rspamd_logger.messagex("Elapsed time: %ss", elapsed_time)
  rspamd_logger.messagex("No of ham: %s", no_of_ham)
  rspamd_logger.messagex("No of spam: %s", no_of_spam)
  rspamd_logger.messagex("Messages/sec: %s", (total_msgs / elapsed_time))
end

return {
  name = 'corpustest',
  aliases = { 'corpus_test', 'corpus' },
  handler = handler,
  description = parser._description
}