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1 /*       +------------------------------------+
2  *       | Inspire Internet Relay Chat Daemon |
3  *       +------------------------------------+
4  *
5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
6  * See: http://www.inspircd.org/wiki/index.php/Credits
7  *
8  * This program is free but copyrighted software; see
9  *            the file COPYING for details.
10  *
11  * ---------------------------------------------------
12  */
13
14 #include "inspircd.h"
15 #include "users.h"
16 #include "channels.h"
17 #include "modules.h"
18 #include "wildcard.h"
19
20 /* $ModDesc: Provides the TITLE command which allows setting of CUSTOM WHOIS TITLE line */
21
22 /** Handle /TITLE
23  */
24 class cmd_title : public command_t
25 {
26         
27  public:
28         cmd_title (InspIRCd* Instance) : command_t(Instance,"TITLE",0,2)
29         {
30                 this->source = "m_customtitle.so";
31                 syntax = "<user> <password>";
32         }
33
34 bool OneOfMatches(const char* host, const char* ip, const char* hostlist)
35 {
36     std::stringstream hl(hostlist);
37     std::string xhost;
38     while (hl >> xhost)
39     {
40         if (match(host,xhost.c_str()) || match(ip,xhost.c_str(),true))
41         {
42             return true;
43         }
44     }
45     return false;
46 }
47
48         CmdResult Handle(const char** parameters, int pcnt, userrec* user)
49         {
50                 if (!IS_LOCAL(user))
51                         return CMD_LOCALONLY;
52         
53                 char TheHost[MAXBUF];
54                 char TheIP[MAXBUF];
55
56                 snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host);
57                 snprintf(TheIP, MAXBUF,"%s@%s",user->ident,user->GetIPString());
58
59                 ConfigReader Conf(ServerInstance);
60                 for (int i=0; i<Conf.Enumerate("title"); i++)
61                 {
62                         std::string name = Conf.ReadValue("title", "name", "", i);
63                         std::string pass = Conf.ReadValue("title", "password", "", i);
64                         std::string host = Conf.ReadValue("title", "host", "*@*", i);
65                         std::string title = Conf.ReadValue("title", "title", "", i);
66                         std::string vhost = Conf.ReadValue("title", "vhost", "", i);
67
68                         if (!strcmp(name.c_str(),parameters[0]) && !strcmp(pass.c_str(),parameters[1]) && OneOfMatches(TheHost,TheIP,host.c_str()) && !title.empty())
69                         {
70                                 std::string* text;
71                                 user->GetExt("ctitle", text);
72
73                                 if (text)
74                                 {
75                                         user->Shrink("ctitle");
76                                         DELETE(text);
77                                 }
78
79                                 text = new std::string(title);
80                                 user->Extend("ctitle", text);
81
82 //                              METADATA peavey ctitle :Official Chat Helper
83
84                                 std::deque<std::string>* metadata = new std::deque<std::string>;
85                                 metadata->push_back(user->nick);
86                                 metadata->push_back("ctitle");      // The metadata id
87                                 metadata->push_back(*text);     // The value to send
88                                 Event event((char*)metadata,(Module*)this,"send_metadata");
89                                 event.Send(ServerInstance);
90                                 delete metadata;
91                                                                                         
92                                 if (!vhost.empty())
93                                         user->ChangeDisplayedHost(vhost.c_str());
94
95                                 if (!ServerInstance->ULine(user->server))
96                                         // Ulines set TITLEs silently
97                                         ServerInstance->WriteOpers("*** %s used TITLE to set custom title '%s'",user->nick,title.c_str());
98
99                                 user->WriteServ("NOTICE %s :Custom title set to '%s'",user->nick, title.c_str());
100
101                                 return CMD_SUCCESS;
102                         }
103                 }
104
105                 if (!ServerInstance->ULine(user->server))
106                         // Ulines also fail TITLEs silently
107                         ServerInstance->WriteOpers("*** Failed TITLE attempt by %s!%s@%s using login '%s'",user->nick,user->ident,user->host,parameters[0]);
108
109                 user->WriteServ("NOTICE %s :Invalid title credentials",user->nick);
110                 return CMD_SUCCESS;
111         }
112
113 };
114
115 class ModuleCustomTitle : public Module
116 {
117         cmd_title* mycommand;
118         
119  public:
120         ModuleCustomTitle(InspIRCd* Me) : Module(Me)
121         {
122                 
123                 mycommand = new cmd_title(ServerInstance);
124                 ServerInstance->AddCommand(mycommand);
125         }
126
127         void Implements(char* List)
128         {
129                 List[I_OnDecodeMetaData] = List[I_OnWhoisLine] = List[I_OnSyncUserMetaData] = List[I_OnUserQuit] = List[I_OnCleanup] = 1;
130         }
131
132         // :kenny.chatspike.net 320 Brain Azhrarn :is getting paid to play games.
133         int OnWhoisLine(userrec* user, userrec* dest, int &numeric, std::string &text)
134         {
135                 /* We use this and not OnWhois because this triggers for remote, too */
136                 if (numeric == 312)
137                 {
138                         /* Insert our numeric before 312 */
139                         std::string* ctitle;
140                         dest->GetExt("ctitle", ctitle);
141                         if (ctitle)
142                         {
143                                 ServerInstance->SendWhoisLine(user, dest, 320, "%s %s :%s",user->nick,dest->nick,ctitle->c_str());
144                         }
145                 }
146                 /* Dont block anything */
147                 return 0;
148         }
149
150         // Whenever the linking module wants to send out data, but doesnt know what the data
151         // represents (e.g. it is metadata, added to a userrec or chanrec by a module) then
152         // this method is called. We should use the ProtoSendMetaData function after we've
153         // corrected decided how the data should look, to send the metadata on its way if
154         // it is ours.
155         virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname, bool displayable)
156         {
157                 // check if the linking module wants to know about OUR metadata
158                 if (extname == "ctitle")
159                 {
160                         // check if this user has an ctitle field to send
161                         std::string* ctitle;
162                         user->GetExt("ctitle", ctitle);
163                         if (ctitle)
164                         {
165                                 // call this function in the linking module, let it format the data how it
166                                 // sees fit, and send it on its way. We dont need or want to know how.
167                                 proto->ProtoSendMetaData(opaque,TYPE_USER,user,extname,*ctitle);
168                         }
169                 }
170         }
171
172         // when a user quits, tidy up their metadata
173         virtual void OnUserQuit(userrec* user, const std::string &message, const std::string &oper_message)
174         {
175                 std::string* ctitle;
176                 user->GetExt("ctitle", ctitle);
177                 if (ctitle)
178                 {
179                         user->Shrink("ctitle");
180                         DELETE(ctitle);
181                 }
182         }
183
184         // if the module is unloaded, tidy up all our dangling metadata
185         virtual void OnCleanup(int target_type, void* item)
186         {
187                 if (target_type == TYPE_USER)
188                 {
189                         userrec* user = (userrec*)item;
190                         std::string* ctitle;
191                         user->GetExt("ctitle", ctitle);
192                         if (ctitle)
193                         {
194                                 user->Shrink("ctitle");
195                                 DELETE(ctitle);
196                         }
197                 }
198         }
199
200         // Whenever the linking module receives metadata from another server and doesnt know what
201         // to do with it (of course, hence the 'meta') it calls this method, and it is up to each
202         // module in turn to figure out if this metadata key belongs to them, and what they want
203         // to do with it.
204         // In our case we're only sending a single string around, so we just construct a std::string.
205         // Some modules will probably get much more complex and format more detailed structs and classes
206         // in a textual way for sending over the link.
207         virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata)
208         {
209                 // check if its our metadata key, and its associated with a user
210                 if ((target_type == TYPE_USER) && (extname == "ctitle"))
211                 {
212                         userrec* dest = (userrec*)target;
213                         // if they dont already have an ctitle field, accept the remote server's
214                         std::string* text;
215                         if (!dest->GetExt("ctitle", text))
216                         {
217                                 std::string* text = new std::string(extdata);
218                                 dest->Extend("ctitle",text);
219                         }
220                 }
221         }
222         
223         virtual ~ModuleCustomTitle()
224         {
225         }
226         
227         virtual Version GetVersion()
228         {
229                 return Version(1,1,0,0,VF_VENDOR,API_VERSION);
230         }
231 };
232
233 MODULE_INIT(ModuleCustomTitle)