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1 | #include <stdio.h> | |
2 | #include <string.h> | |
3 | #include "../localuser/localuserchannel.h" | |
4 | #include "glines.h" | |
5 | ||
6 | /* | |
7 | <prefix> GL <target> [!][+|-|>|<]<mask> [<expiration>] [<lastmod>] [<lifetime>] [:<reason>] | |
8 | */ | |
9 | ||
10 | int handleglinemsg(void *source, int cargc, char **cargv) { | |
11 | char *sender = (char *)source; | |
12 | char *mask; | |
13 | char *reason; | |
14 | char *creator; | |
15 | time_t lifetime = 0, expire = 0, lastmod = 0; | |
16 | unsigned int flags = 0; | |
17 | long creatornum; | |
18 | gline *agline; | |
19 | nick *np; | |
20 | glinebuf gbuf; | |
21 | ||
22 | /** | |
23 | * Valid GL tokens have X params: | |
24 | * 2: Local modification to a local gline - ignored by services | |
25 | * 4: ulined GL | |
26 | * 5: 1.3.x GL Token | |
27 | * 6: 1.4.x GL Token - adds lifetime parameter | |
28 | */ | |
29 | switch (cargc) { | |
30 | case 2: | |
31 | /* local modification which we reject later */ | |
32 | break; | |
33 | case 4: | |
34 | /* ulined GL */ | |
35 | break; | |
36 | case 5: | |
37 | /* 1.3.x GL Token */ | |
38 | break; | |
39 | case 6: | |
40 | /* 1.4.0 and above GL token */ | |
41 | break; | |
42 | default: | |
43 | Error("gline", ERR_WARNING, "Invalid number of arguments in GL token (%d)", cargc); | |
44 | return CMD_ERROR; | |
45 | } | |
46 | ||
47 | /** | |
48 | * Gline creator can be either a nick or a server | |
49 | * 2 long numeric = server | |
50 | * 5 long number = client | |
51 | */ | |
52 | switch (strlen(source)) { | |
53 | case 2: | |
54 | creatornum = numerictolong(sender, 2); | |
55 | if (creatornum < 0) { | |
56 | Error("gline", ERR_WARNING, "Failed to resolve numeric (%s) to server when adding G-Line from network!", sender); | |
57 | creator = "unknown"; | |
58 | } else | |
59 | if (serverlist[(int)creatornum].name == NULL) { | |
60 | Error("gline", ERR_WARNING, "Received gline from non-existant server"); | |
61 | return CMD_ERROR; | |
62 | } else { | |
63 | creator = serverlist[(int)creatornum].name->content; | |
64 | } | |
65 | break; | |
66 | case 5: | |
67 | creatornum = numerictolong(sender, 5); | |
68 | np = getnickbynumeric(creatornum); | |
69 | if (!np) { | |
70 | Error("gline", ERR_WARNING, "Failed to resolve numeric (%s) to nick when adding G-Line from network!", sender); | |
71 | creator = "unknown"; | |
72 | } else | |
73 | creator = np->nick; | |
74 | break; | |
75 | default: | |
76 | Error("gline", ERR_WARNING, "Invalid numeric '%s' in G-Line message.", sender); | |
77 | return CMD_ERROR; | |
78 | } | |
79 | ||
80 | /* 2nd param is mask */ | |
81 | mask = cargv[1]; | |
82 | ||
83 | if (*mask == '%') { | |
84 | flags |= GLINE_DESTROY; | |
85 | mask++; | |
86 | } | |
87 | ||
88 | switch (*mask) { | |
89 | case '+': | |
90 | flags |= GLINE_ACTIVATE; | |
91 | mask++; | |
92 | break; | |
93 | case '-': | |
94 | flags |= GLINE_DEACTIVATE; | |
95 | mask++; | |
96 | break; | |
97 | case '>': | |
98 | case '<': | |
99 | Error("gline", ERR_WARNING, "Received local modification from %s - do they realise we're a service?", sender); | |
100 | return CMD_ERROR; | |
101 | case '!': | |
102 | Error("gline", ERR_WARNING, "Received 'forced gline' token from %s", sender); | |
103 | return CMD_ERROR; | |
104 | } | |
105 | ||
106 | if (flags & GLINE_ACTIVATE) { | |
107 | /* activate gline */ | |
108 | expire = abs_expire(atoi(cargv[2])); | |
109 | switch (cargc) { | |
110 | case 4: | |
111 | /* asuka U:d, no lastmod */ | |
112 | lastmod = 0; | |
113 | lifetime = expire; | |
114 | reason = cargv[3]; | |
115 | break; | |
116 | case 5: | |
117 | /*asuka lastmod */ | |
118 | lastmod = atoi(cargv[3]); | |
119 | lifetime = gline_max(lastmod, expire); /* set lifetime = lastmod */ | |
120 | reason = cargv[4]; | |
121 | break; | |
122 | case 6: | |
123 | /* snircd */ | |
124 | lastmod = atoi(cargv[3]); | |
125 | lifetime = atoi(cargv[4]); | |
126 | reason = cargv[5]; | |
127 | break; | |
128 | default: | |
129 | Error("gline", ERR_WARNING, "Gline Activate with invalid number (%d) of arguments", cargc); | |
130 | return CMD_ERROR; | |
131 | } | |
132 | ||
133 | Error("debuggline", ERR_WARNING, "GL Received: Creator %s, Mask %s, Reason %s, Expire %lu, Lastmod %lu, Lifetime %lu", creator, mask, reason, expire, lastmod, lifetime); | |
134 | ||
135 | agline = findgline(mask); | |
136 | ||
137 | if (agline) { | |
138 | Error("debuggline", ERR_WARNING, "Update for existing gline received for %s - old lastmod %lu, expire %lu, lifetime %lu, reason %s, creator %s", mask, agline->lastmod, agline->expire, agline->lifetime, agline->reason ? agline->reason->content : "", agline->creator->content); | |
139 | ||
140 | agline->flags |= GLINE_ACTIVE; | |
141 | ||
142 | /* check lastmod then assume the new gline is authoritive */ | |
143 | if (lastmod > agline->lastmod) { | |
144 | agline->lastmod = lastmod; | |
145 | agline->expire = expire; | |
146 | agline->lifetime = lifetime; | |
147 | freesstring(agline->creator); | |
148 | agline->creator = getsstring(creator, 255); | |
149 | freesstring(agline->reason); | |
150 | agline->reason = getsstring(reason, 255); | |
151 | } else { | |
152 | Error("debuggline", ERR_WARNING, "received a gline with a lower lastmod"); | |
153 | /* Don't send our gline as that might cause loops in case we don't understand the gline properly. */ | |
154 | } | |
155 | ||
156 | return CMD_OK; | |
157 | } else { | |
158 | glinebufinit(&gbuf, 0); | |
159 | glinebufadd(&gbuf, mask, creator, reason, expire, lastmod, lifetime); | |
160 | glinebufcommit(&gbuf, 0); | |
161 | } | |
162 | } else if (flags & GLINE_DEACTIVATE) { | |
163 | /* deactivate gline */ | |
164 | agline = findgline(mask); | |
165 | ||
166 | if (agline) { | |
167 | switch (cargc) { | |
168 | case 2: | |
169 | /* asuka U:d, no last mod */ | |
170 | removegline(agline); | |
171 | break; | |
172 | case 5: | |
173 | /* asuka last mod */ | |
174 | lastmod = atoi(cargv[3]); | |
175 | ||
176 | if (flags & GLINE_DESTROY) | |
177 | gline_destroy(agline, lastmod, 0); | |
178 | else | |
179 | gline_deactivate(agline, lastmod, 0); | |
180 | ||
181 | break; | |
182 | case 6: | |
183 | /* snircd */ | |
184 | lastmod = atoi(cargv[3]); | |
185 | ||
186 | if (flags & GLINE_DESTROY) | |
187 | gline_destroy(agline, lastmod, 0); | |
188 | else | |
189 | gline_deactivate(agline, lastmod, 0); | |
190 | ||
191 | break; | |
192 | default: | |
193 | Error("gline", ERR_WARNING, "Gline Deactivate with invalid number (%d) of arguments", cargc); | |
194 | return CMD_ERROR; | |
195 | } | |
196 | ||
197 | return CMD_OK; | |
198 | } else { | |
199 | Error("gline", ERR_WARNING, "Gline addition - adding deactivated gline - mask not found (%s)", mask); | |
200 | expire = abs_expire(atoi(cargv[2])); | |
201 | switch (cargc) { | |
202 | case 4: | |
203 | /* asuka U:d, no lastmod */ | |
204 | reason = cargv[3]; | |
205 | break; | |
206 | case 5: | |
207 | /*asuka lastmod */ | |
208 | lastmod = atoi(cargv[3]); | |
209 | lifetime = gline_max(lastmod, expire); /* set lifetime = lastmod */ | |
210 | reason = cargv[4]; | |
211 | break; | |
212 | case 6: | |
213 | /* snircd */ | |
214 | lastmod = atoi(cargv[3]); | |
215 | lifetime = atoi(cargv[4]); | |
216 | reason = cargv[5]; | |
217 | break; | |
218 | default: | |
219 | Error("gline", ERR_WARNING, "Gline DeActivate with invalid number (%d) of arguments", cargc); | |
220 | return CMD_ERROR; | |
221 | } | |
222 | ||
223 | glinebufinit(&gbuf, 0); | |
224 | agline = glinebufadd(&gbuf, mask, creator, reason, expire, lastmod, lifetime); | |
225 | ||
226 | if (!agline) { | |
227 | glinebufabort(&gbuf); | |
228 | Error("gline", ERR_WARNING, "gline_add failed"); | |
229 | return CMD_ERROR; | |
230 | } | |
231 | ||
232 | gline_deactivate(agline, lastmod, 0); | |
233 | glinebufcommit(&gbuf, 0); | |
234 | ||
235 | return CMD_OK; | |
236 | } | |
237 | } else { | |
238 | /* modification - only snircd 1.4.x */ | |
239 | agline = findgline(mask); | |
240 | ||
241 | if (agline) { | |
242 | expire = abs_expire(atoi(cargv[2])); | |
243 | lastmod = atoi(cargv[3]); | |
244 | lifetime = atoi(cargv[4]); | |
245 | reason = cargv[5]; | |
246 | ||
247 | if (lastmod > agline->lastmod) { | |
248 | agline->lastmod = lastmod; | |
249 | agline->expire = expire; | |
250 | agline->lifetime = lifetime; | |
251 | agline->creator = getsstring(creator, 255); | |
252 | freesstring(agline->reason); | |
253 | agline->reason = getsstring(reason, 255); | |
254 | } else { | |
255 | Error("debuggline", ERR_WARNING, "received a gline modification with a lower lastmod"); | |
256 | } | |
257 | ||
258 | return CMD_OK; | |
259 | } else { | |
260 | Error("gline", ERR_WARNING, "Received modification for G-Line that does not exist for mask %s", mask); | |
261 | return CMD_ERROR; | |
262 | } | |
263 | } | |
264 | ||
265 | return CMD_OK; | |
266 | } | |
267 | ||
268 | void handleglinestats(int hooknum, void *arg) { | |
269 | if ((long)arg > 10) { | |
270 | char message[100]; | |
271 | int glcount = 0; | |
272 | gline *gl; | |
273 | ||
274 | for(gl = glinelist; gl; gl = gl->next) | |
275 | glcount++; | |
276 | ||
277 | snprintf(message, sizeof(message), "G-Lines :%7d glines", glcount); | |
278 | triggerhook(HOOK_CORE_STATSREPLY, message); | |
279 | } | |
280 | } | |
281 |