aboutsummaryrefslogtreecommitdiffstats
path: root/global-functions
blob: a629ca6b4780ffac18a70f00c2e8a097fdc5a933 (about) (plain) (blame)
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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
#!rsc
# RouterOS script: global-functions
# Copyright (c) 2013-2019 Christian Hesse <mail@eworm.de>
#
# global functions

# expected configuration version
:global ExpectedConfigVersion 4;

# global variables not to be changed by user
:global SentConfigChangesNotification "-";
:global SentRouterosUpdateNotification "-";
:global SentLteFirmwareUpgradeNotification "-";
:global Identity [ / system identity get name ];

# url encoding
:global UrlEncode do={
  :local Input [ :tostr $1 ];
  :local Return "";

  :if ([ :len $Input ] > 0) do={
    :local Chars " !\"#\$%&'()*+,-./:;<=>\?@[\\]^_`{|}~";
    :local Subs { "%20"; "%21"; "%22"; "%23"; "%24"; "%25"; "%26"; "%27"; "%28"; "%29";
                  "%2A"; "%2B"; "%2C"; "%2D"; "%2E"; "%2F"; "%3A"; "%3B"; "%3C"; "%3D";
                  "%3E"; "%3F"; "%40"; "%5B"; "%5C"; "%5D"; "%5E"; "%5F"; "%60"; "%7B";
                  "%7C"; "%7D"; "%7E" };

    :for I from=0 to=([ :len $Input ] - 1) do={
      :local Char [ :pick $Input $I ];
      :local Replace [ :find $Chars $Char ];

      :if ([ :len $Replace ] > 0) do={
        :set Char ($Subs->$Replace);
      }
      :set Return ($Return . $Char);
    }
  }

  :return $Return;
}

# character replace
:global CharacterReplace do={
  :local String [ :tostr $1 ];
  :local ReplaceFrom [ :tostr $2 ];
  :local ReplaceWith [ :tostr $3 ];
  :local Len [ :len $ReplaceFrom ];
  :local Return "";

  :if ($ReplaceFrom = "") do={
    :return $String;
  }

  :while ($String ~ $ReplaceFrom) do={
    :local Pos [ :find $String $ReplaceFrom ];
    :set Return ($Return . [ :pick $String 0 $Pos ] . $ReplaceWith);
    :set String [ :pick $String ($Pos + $Len) 999 ];
  }

  :return ($Return . $String);
}

# check and import required certificates
:global CertificateAvailable do={
  :local CommonName [ :tostr $1 ];

  :global ScriptUpdatesBaseUrl;
  :global ScriptUpdatesUrlSuffix;

  :global UrlEncode;
  :global WaitForFile;

  :if ([ / certificate print count-only where common-name=$CommonName ] = 0) do={
    :log info ("Certificate with CommonName " . $CommonName . \
      " not available, downloading and importing.");
    :do {
      :local LocalFileName ($CommonName . ".pem");
      :local UrlFileName ([ $UrlEncode $CommonName ] . ".pem");
      / tool fetch check-certificate=yes-without-crl \
        ($ScriptUpdatesBaseUrl . "certs/" . \
        $UrlFileName . $ScriptUpdatesUrlSuffix) \
        dst-path=$LocalFileName;
      $WaitForFile $LocalFileName;
      / certificate import file-name=$LocalFileName passphrase="";
      / file remove $LocalFileName;
    } on-error={
      :log warning "Failed imprting certificate!";
    }
  }
}

# send notification via e-mail and telegram
# Note that attachment is ignored for telegram!
:global SendNotification do={
  :local Subject [ :tostr $1 ];
  :local Message [ :tostr $2 ];
  :local Attach [ :tostr $3 ];

  :global Identity;
  :global EmailGeneralTo;
  :global EmailGeneralCc;
  :global TelegramTokenId;
  :global TelegramChatId;

  :global UrlEncode;
  :global CertificateAvailable;

  :if ([ :len $EmailGeneralTo ] > 0) do={
    :do {
      / tool e-mail send to=$EmailGeneralTo cc=$EmailGeneralCc \
        subject=("[" . $Identity . "] " . $Subject) body=$Message file=$Attach;
    } on-error={
      :log warning "Failed sending notification mail!";
    }
  }

  :if ([ :len $TelegramTokenId ] > 0 && [ :len $TelegramChatId ] > 0) do={
    $CertificateAvailable "Go Daddy Secure Certificate Authority - G2";
    :do {
      / tool fetch check-certificate=yes-without-crl keep-result=no http-method=post \
        ("https://api.telegram.org/bot" . $TelegramTokenId . "/sendMessage") \
        http-data=("chat_id=" . $TelegramChatId . "&text=" . \
        [ $UrlEncode ("[" . $Identity . "] " . $Subject . "\n\n" . $Message) ]);
    } on-error={
      :log warning "Failed sending telegram notification!";
    }
  }
}

# get MAC vendor
:global GetMacVendor do={
  :local Mac [ :tostr $1 ];

  :global CertificateAvailable;

  :do {
    :local Vendor;
    $CertificateAvailable "Let's Encrypt Authority X3";
    :set Vendor ([ / tool fetch check-certificate=yes-without-crl \
        ("https://api.macvendors.com/" . [ :pick $Mac 0 8 ]) output=user as-value ]->"data");
    :return $Vendor;
  } on-error={
    :return "unknown vendor";
  }
}

# clean file path
:global CleanFilePath do={
  :local Path [ :tostr $1 ];

  :global CharacterReplace;

  :while ($Path ~ "//") do={
    :set $Path [ $CharacterReplace $Path "//" "/" ];
  }
  :if ([ :pick $Path 0 ] = "/") do={
    :set Path [ :pick $Path 1 [ :len $Path ] ];
  }
  :if ([ :pick $Path ([ :len $Path ] - 1) ] = "/") do={
    :set Path [ :pick $Path 0 ([ :len $Path ] - 1) ];
  }

  :return $Path;
}

# download package from upgrade server
:global DownloadPackage do={
  :local PkgName [ :tostr $1 ];
  :local PkgVer  [ :tostr $2 ];
  :local PkgArch [ :tostr $3 ];
  :local PkgDir  [ :tostr $4 ];

  :global CertificateAvailable;
  :global CleanFilePath;
  :global WaitForFile;

  :if ([ :len $PkgName ] = 0) do={ return false; }
  :if ([ :len $PkgVer  ] = 0) do={ :set PkgVer  [ / system package update get installed-version ]; }
  :if ([ :len $PkgArch ] = 0) do={ :set PkgArch [ / system resource get architecture-name ]; }

  :local PkgFile ($PkgName . "-" . $PkgVer . "-" . $PkgArch . ".npk");
  :local PkgDest [ $CleanFilePath ($PkgDir . "/" . $PkgFile) ];

  $CertificateAvailable "Let's Encrypt Authority X3";
  :do {
    / tool fetch check-certificate=yes-without-crl \
      ("https://upgrade.mikrotik.com/routeros/" . $PkgVer . "/" . $PkgFile) \
      dst-path=$PkgDest;
    $WaitForFile $PkgDest;
  } on-error={
    / file remove [ find where name=$PkgDest ];
    :return false;
  }

  :return true;
}

# lock script against multiple invocation
:global ScriptLock do={
  :local Script [ :tostr $1 ];

  :if ([ / system script job print count-only where script=$Script ] > 1) do={
    :log debug ("Script " . $Script . " started more than once... Aborting.");
    :error "Locked."
  }
}

# wait for file to be available
:global WaitForFile do={
  :global CleanFilePath;

  :local FileName [ $CleanFilePath [ :tostr $1 ] ];
  :local I 0;

  :while ([ file print count-only where name=$FileName ] = 0) do={
    :if ($I > 20) do={
      :return false;
    }
    :delay 100ms;
    :set I ($I + 1);
  }
  :return true;
}