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1 | #include <stdio.h> | |
2 | #include <string.h> | |
3 | #include "../lib/version.h" | |
4 | #include "../control/control.h" | |
5 | #include "../lib/irc_string.h" | |
6 | #include "../lib/strlfunc.h" | |
7 | #include "../core/nsmalloc.h" | |
8 | #include "../irc/irc.h" | |
9 | #include "../newsearch/newsearch.h" | |
10 | #include "../glines/glines.h" | |
11 | #include "trusts.h" | |
12 | #include "newsearch/trusts_newsearch.h" | |
13 | ||
14 | MODULE_VERSION(""); | |
15 | ||
16 | static void registercommands(int, void *); | |
17 | static void deregistercommands(int, void *); | |
18 | ||
19 | extern void printnick_channels(searchCtx *, nick *, nick *); | |
20 | ||
21 | void calculatespaces(int spaces, int width, const char *str, char **_prebuf, char **_postbuf) { | |
22 | static char prebuf[512], postbuf[512]; | |
23 | int spacelen; | |
24 | ||
25 | if(spaces + 5 >= sizeof(prebuf)) { | |
26 | prebuf[0] = prebuf[1] = '\0'; | |
27 | } else { | |
28 | memset(prebuf, ' ', spaces); | |
29 | prebuf[spaces] = '\0'; | |
30 | } | |
31 | ||
32 | spacelen = width - (strlen(str) + spaces); | |
33 | if(spacelen <= 0 || spacelen + 5 >= sizeof(postbuf)) { | |
34 | postbuf[0] = postbuf[1] = '\0'; | |
35 | } else { | |
36 | memset(postbuf, ' ', spacelen); | |
37 | postbuf[spacelen] = '\0'; | |
38 | } | |
39 | ||
40 | *_prebuf = prebuf; | |
41 | *_postbuf = postbuf; | |
42 | } | |
43 | ||
44 | static void traverseandmark(unsigned int marker, trusthost *th, int markchildren) { | |
45 | th->marker = marker; | |
46 | ||
47 | if(markchildren) { | |
48 | for(th=th->children;th;th=th->nextbychild) { | |
49 | th->marker = marker; | |
50 | traverseandmark(marker, th, markchildren); | |
51 | } | |
52 | } | |
53 | } | |
54 | ||
55 | static void insertth(array *parents, trusthost *th) { | |
56 | int i; | |
57 | trusthost **p2 = (trusthost **)(parents->content); | |
58 | ||
59 | /* this eliminates common subtrees */ | |
60 | for(i=0;i<parents->cursi;i++) | |
61 | if(p2[i] == th) | |
62 | break; | |
63 | ||
64 | if(i == parents->cursi) { | |
65 | int pos = array_getfreeslot(parents); | |
66 | ((trusthost **)(parents->content))[pos] = th; | |
67 | } | |
68 | } | |
69 | ||
70 | static void marktree(array *parents, unsigned int marker, trusthost *th, int showchildren) { | |
71 | trusthost *pth; | |
72 | int parentcount = 0; | |
73 | ||
74 | for(pth=th->parent;pth;pth=pth->parent) { | |
75 | insertth(parents, pth); | |
76 | ||
77 | pth->marker = marker; | |
78 | } | |
79 | ||
80 | if(parentcount == 0) | |
81 | insertth(parents, th); | |
82 | ||
83 | /* sadly we need to recurse down */ | |
84 | traverseandmark(marker, th, showchildren); | |
85 | } | |
86 | ||
87 | static void outputtree(nick *np, unsigned int marker, trustgroup *originalgroup, trusthost *th, int depth, int showchildren) { | |
88 | const char *cidrstr; | |
89 | char *prespacebuf, *postspacebuf, parentbuf[512]; | |
90 | ||
91 | if(th->marker != marker) | |
92 | return; | |
93 | ||
94 | cidrstr = CIDRtostr(th->ip, th->bits); | |
95 | calculatespaces(depth + 2, 30 + 1, cidrstr, &prespacebuf, &postspacebuf); | |
96 | ||
97 | if(th->group == originalgroup) { | |
98 | if(!showchildren && th->group == originalgroup && th->children) | |
99 | prespacebuf[0] = '*'; | |
100 | else | |
101 | prespacebuf[0] = ' '; | |
102 | ||
103 | prespacebuf[1] = '>'; | |
104 | ||
105 | parentbuf[0] = '\0'; | |
106 | } else { | |
107 | /* show the ids of other groups */ | |
108 | ||
109 | snprintf(parentbuf, sizeof(parentbuf), "%-10d %s", th->group->id, th->group->name->content); | |
110 | } | |
111 | ||
112 | controlreply(np, "%s%s%s %-10d %-10d %-21s %-15d /%-14d%s", prespacebuf, cidrstr, postspacebuf, th->count, th->maxusage, (th->count>0)?"(now)":((th->lastseen>0)?trusts_timetostr(th->lastseen):"(never)"), th->maxpernode, (irc_in_addr_is_ipv4(&th->ip))?(th->nodebits - 96):th->nodebits, parentbuf); | |
113 | ||
114 | /* Make sure we're not seeing this subtree again. */ | |
115 | th->marker = -1; | |
116 | ||
117 | for(th=th->children;th;th=th->nextbychild) | |
118 | outputtree(np, marker, originalgroup, th, depth + 1, showchildren); | |
119 | } | |
120 | ||
121 | static char *formatflags(int flags) { | |
122 | static char buf[512]; | |
123 | ||
124 | buf[0] = '\0'; | |
125 | ||
126 | if(flags & TRUST_ENFORCE_IDENT) | |
127 | strncat(buf, "enforcing ident", 512); | |
128 | ||
129 | if(flags & TRUST_NO_CLEANUP) { | |
130 | if(buf[0]) | |
131 | strncat(buf, ", ", 512); | |
132 | ||
133 | strncat(buf, "exempt from cleanup", 512); | |
134 | } | |
135 | ||
136 | if(flags & TRUST_PROTECTED) { | |
137 | if(buf[0]) | |
138 | strncat(buf, ", ", 512); | |
139 | ||
140 | strncat(buf, "protected", 512); | |
141 | } | |
142 | ||
143 | if(flags & TRUST_RELIABLE_USERNAME) { | |
144 | if(buf[0]) | |
145 | strncat(buf, ", ", 512); | |
146 | ||
147 | strncat(buf, "reliable username", 512); | |
148 | } | |
149 | ||
150 | if(flags & TRUST_UNTHROTTLE) { | |
151 | if(buf[0]) | |
152 | strncat(buf, ", ", 512); | |
153 | ||
154 | strncat(buf, "unthrottled", 512); | |
155 | } | |
156 | ||
157 | buf[512-1] = '\0'; | |
158 | ||
159 | return buf; | |
160 | } | |
161 | ||
162 | static char *formatlimit(unsigned int limit) { | |
163 | static char buf[64]; | |
164 | ||
165 | if(limit) | |
166 | snprintf(buf, sizeof(buf), "%u", limit); | |
167 | else | |
168 | strncpy(buf, "unlimited", sizeof(buf)); | |
169 | ||
170 | return buf; | |
171 | } | |
172 | ||
173 | static void displaygroup(nick *sender, trustgroup *tg, int showchildren) { | |
174 | trusthost *th, **p2; | |
175 | unsigned int marker; | |
176 | array parents; | |
177 | int i; | |
178 | time_t t = getnettime(); | |
179 | ||
180 | /* abusing the ternary operator a bit :( */ | |
181 | controlreply(sender, "Name: : %s", tg->name->content); | |
182 | controlreply(sender, "Trusted for : %s", formatlimit(tg->trustedfor)); | |
183 | controlreply(sender, "Currently using : %d", tg->count); | |
184 | controlreply(sender, "Clients per user : %s", formatlimit(tg->maxperident)); | |
185 | controlreply(sender, "Flags : %s", formatflags(tg->flags)); | |
186 | controlreply(sender, "Contact: : %s", tg->contact->content); | |
187 | controlreply(sender, "Expires in : %s", (tg->expires)?((tg->expires>t)?longtoduration(tg->expires - t, 2):"the past (will be removed during next cleanup)"):"never"); | |
188 | controlreply(sender, "Created by : %s", tg->createdby->content); | |
189 | controlreply(sender, "Comment: : %s", tg->comment->content); | |
190 | controlreply(sender, "ID: : %u", tg->id); | |
191 | controlreply(sender, "Last used : %s", (tg->count>0)?"(now)":((tg->lastseen>0)?trusts_timetostr(tg->lastseen):"(never)")); | |
192 | controlreply(sender, "Max usage : %d", tg->maxusage); | |
193 | controlreply(sender, "Last max reset : %s", tg->lastmaxusereset?trusts_timetostr(tg->lastmaxusereset):"(never)"); | |
194 | ||
195 | controlreply(sender, "---"); | |
196 | controlreply(sender, "Attributes: * (has hidden children, show with -v), > (belongs to this trust group)"); | |
197 | controlreply(sender, "Host Current Max Last seen Max per Node Node Mask Group ID Group name"); | |
198 | ||
199 | marker = nextthmarker(); | |
200 | array_init(&parents, sizeof(trusthost *)); | |
201 | ||
202 | for(th=tg->hosts;th;th=th->next) | |
203 | marktree(&parents, marker, th, showchildren); | |
204 | ||
205 | p2 = (trusthost **)(parents.content); | |
206 | for(i=0;i<parents.cursi;i++) | |
207 | outputtree(sender, marker, tg, p2[i], 0, showchildren); | |
208 | ||
209 | array_free(&parents); | |
210 | ||
211 | controlreply(sender, "End of list."); | |
212 | } | |
213 | ||
214 | static int trusts_cmdtrustlist(void *source, int cargc, char **cargv) { | |
215 | nick *sender = source; | |
216 | trustgroup *tg = NULL; | |
217 | int found = 0, remaining = 50; | |
218 | char *name; | |
219 | trusthost *th; | |
220 | struct irc_in_addr ip; | |
221 | unsigned char bits; | |
222 | int showchildren; | |
223 | ||
224 | if(cargc < 1) | |
225 | return CMD_USAGE; | |
226 | ||
227 | if(strcmp(cargv[0], "-v") == 0) { | |
228 | if(cargc < 2) | |
229 | return CMD_USAGE; | |
230 | ||
231 | showchildren = 1; | |
232 | name = cargv[1]; | |
233 | } else { | |
234 | showchildren = 0; | |
235 | name = cargv[0]; | |
236 | } | |
237 | ||
238 | tg = tg_strtotg(name); | |
239 | ||
240 | if(tg) { | |
241 | displaygroup(sender, tg, showchildren); | |
242 | return CMD_OK; | |
243 | } | |
244 | ||
245 | if(ipmask_parse(name, &ip, &bits)) { | |
246 | th = th_getbyhost(&ip); | |
247 | ||
248 | if(!th) { | |
249 | controlreply(sender, "Specified IP address is not trusted."); | |
250 | return CMD_OK; | |
251 | } | |
252 | ||
253 | displaygroup(sender, th->group, showchildren); | |
254 | return CMD_OK; | |
255 | } | |
256 | ||
257 | for(tg=tglist;tg;tg=tg->next) { | |
258 | if(match(name, tg->name->content)) | |
259 | continue; | |
260 | ||
261 | displaygroup(sender, tg, showchildren); | |
262 | if(--remaining == 0) { | |
263 | controlreply(sender, "Maximum number of matches reached."); | |
264 | return CMD_OK; | |
265 | } | |
266 | found = 1; | |
267 | } | |
268 | ||
269 | if(!found) | |
270 | controlreply(sender, "No matches found."); | |
271 | ||
272 | return CMD_OK; | |
273 | } | |
274 | ||
275 | static int trusts_cmdtrustglinesuggest(void *source, int cargc, char **cargv) { | |
276 | nick *sender = source; | |
277 | char mask[512]; | |
278 | char *p, *user, *host; | |
279 | struct irc_in_addr ip; | |
280 | unsigned char bits; | |
281 | int count; | |
282 | glinebuf gbuf; | |
283 | char creator[32]; | |
284 | ||
285 | if(cargc < 1) | |
286 | return CMD_USAGE; | |
287 | ||
288 | strncpy(mask, cargv[0], sizeof(mask)); | |
289 | ||
290 | p = strchr(mask, '@'); | |
291 | ||
292 | if(!p) | |
293 | return CMD_USAGE; | |
294 | ||
295 | user = mask; | |
296 | host = p + 1; | |
297 | *p = '\0'; | |
298 | ||
299 | if(!ipmask_parse(host, &ip, &bits)) { | |
300 | controlreply(sender, "Invalid CIDR."); | |
301 | return CMD_ERROR; | |
302 | } | |
303 | ||
304 | snprintf(creator, sizeof(creator), "#%s", sender->authname); | |
305 | ||
306 | glinebufinit(&gbuf, 0); | |
307 | glinebufaddbyip(&gbuf, user, &ip, 128, 0, creator, "Simulate", getnettime(), getnettime(), getnettime()); | |
308 | glinebufcounthits(&gbuf, &count, NULL); | |
309 | glinebufspew(&gbuf, sender); | |
310 | glinebufabort(&gbuf); | |
311 | ||
312 | controlreply(sender, "Total hits: %d", count); | |
313 | ||
314 | return CMD_OK; | |
315 | } | |
316 | ||
317 | static int trusts_cmdtrustspew(void *source, int cargc, char **cargv) { | |
318 | nick *sender = source; | |
319 | searchASTExpr tree; | |
320 | ||
321 | if(cargc < 1) | |
322 | return CMD_USAGE; | |
323 | ||
324 | tree = NSASTNode(tgroup_parse, NSASTLiteral(cargv[0])); | |
325 | return ast_nicksearch(&tree, controlreply, sender, NULL, printnick_channels, NULL, NULL, 2000, NULL); | |
326 | } | |
327 | ||
328 | static int commandsregistered; | |
329 | ||
330 | static void registercommands(int hooknum, void *arg) { | |
331 | if(commandsregistered) | |
332 | return; | |
333 | commandsregistered = 1; | |
334 | ||
335 | registercontrolhelpcmd("trustlist", NO_OPER, 2, trusts_cmdtrustlist, "Usage: trustlist [-v] <#id|name|IP>\nShows trust data for the specified trust group."); | |
336 | registercontrolhelpcmd("trustglinesuggest", NO_OPER, 1, trusts_cmdtrustglinesuggest, "Usage: trustglinesuggest <user@host>\nSuggests glines for the specified hostmask."); | |
337 | registercontrolhelpcmd("trustspew", NO_OPER, 1, trusts_cmdtrustspew, "Usage: trustspew <#id|name>\nShows currently connected users for the specified trust group."); | |
338 | } | |
339 | ||
340 | static void deregistercommands(int hooknum, void *arg) { | |
341 | if(!commandsregistered) | |
342 | return; | |
343 | commandsregistered = 0; | |
344 | ||
345 | deregistercontrolcmd("trustlist", trusts_cmdtrustlist); | |
346 | deregistercontrolcmd("trustglinesuggest", trusts_cmdtrustglinesuggest); | |
347 | deregistercontrolcmd("trustspew", trusts_cmdtrustspew); | |
348 | } | |
349 | ||
350 | void _init(void) { | |
351 | registerhook(HOOK_TRUSTS_DB_LOADED, registercommands); | |
352 | registerhook(HOOK_TRUSTS_DB_CLOSED, deregistercommands); | |
353 | ||
354 | if(trustsdbloaded) | |
355 | registercommands(0, NULL); | |
356 | } | |
357 | ||
358 | void _fini(void) { | |
359 | deregisterhook(HOOK_TRUSTS_DB_LOADED, registercommands); | |
360 | deregisterhook(HOOK_TRUSTS_DB_CLOSED, deregistercommands); | |
361 | ||
362 | deregistercommands(0, NULL); | |
363 | } |