]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_sqloper.cpp
Fix dccallow to work with files with spaces in their names
[user/henk/code/inspircd.git] / src / modules / m_sqloper.cpp
index 871ef7d464b238f80c1e129adb01f5e12cb0369f..ae581cc4b61e3b36a98962291c41243545ff77f9 100644 (file)
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
  *
- * This program is free but copyrighted software; see
- *         the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #include "inspircd.h"
-#include "m_sqlv2.h"
-#include "m_sqlutils.h"
+#include "sql.h"
 #include "hash.h"
 
 /* $ModDesc: Allows storage of oper credentials in an SQL table */
 
-typedef std::map<irc::string, Module*> hashymodules;
-
-class ModuleSQLOper : public Module
+static bool OneOfMatches(const char* host, const char* ip, const std::string& hostlist)
 {
-       LocalStringExt saved_user;
-       LocalStringExt saved_pass;
-       Module* SQLutils;
-       std::string databaseid;
-       std::string hashtype;
-       parameterlist names;
-
-public:
-       ModuleSQLOper() : saved_user("sqloper_user", this), saved_pass("sqloper_pass", this)
-       {
-               OnRehash(NULL);
-
-               SQLutils = ServerInstance->Modules->Find("m_sqlutils.so");
-               if (!SQLutils)
-                       throw ModuleException("Can't find m_sqlutils.so. Please load m_sqlutils.so before m_sqloper.so.");
-
-               Implementation eventlist[] = { I_OnRehash, I_OnPreCommand, I_OnLoadModule };
-               ServerInstance->Modules->Attach(eventlist, this, 3);
-               ServerInstance->Modules->AddService(saved_user);
-               ServerInstance->Modules->AddService(saved_pass);
-       }
-
-       bool OneOfMatches(const char* host, const char* ip, const char* hostlist)
+       std::stringstream hl(hostlist);
+       std::string xhost;
+       while (hl >> xhost)
        {
-               std::stringstream hl(hostlist);
-               std::string xhost;
-               while (hl >> xhost)
+               if (InspIRCd::Match(host, xhost, ascii_case_insensitive_map) || InspIRCd::MatchCIDR(ip, xhost, ascii_case_insensitive_map))
                {
-                       if (InspIRCd::Match(host, xhost, ascii_case_insensitive_map) || InspIRCd::MatchCIDR(ip, xhost, ascii_case_insensitive_map))
-                       {
-                               return true;
-                       }
+                       return true;
                }
-               return false;
        }
+       return false;
+}
 
-       virtual void OnRehash(User* user)
+class OpMeQuery : public SQLQuery
+{
+ public:
+       const std::string uid, username, password;
+       OpMeQuery(Module* me, const std::string& u, const std::string& un, const std::string& pw)
+               : SQLQuery(me), uid(u), username(un), password(pw)
        {
-               ConfigReader Conf;
-
-               databaseid = Conf.ReadValue("sqloper", "dbid", 0); /* Database ID of a database configured for the service provider module */
-               hashtype = Conf.ReadValue("sqloper", "hash", 0);
        }
 
-       virtual ModResult OnPreCommand(std::string &command, std::vector<std::string> &parameters, LocalUser *user, bool validated, const std::string &original_line)
+       void OnResult(SQLResult& res)
        {
-               if ((validated) && (command == "OPER"))
+               ServerInstance->Logs->Log("m_sqloper",DEBUG, "SQLOPER: result for %s", uid.c_str());
+               User* user = ServerInstance->FindNick(uid);
+               if (!user)
+                       return;
+
+               // multiple rows may exist
+               SQLEntries row;
+               while (res.GetRow(row))
                {
-                       if (LookupOper(user, parameters[0], parameters[1]))
+#if 0
+                       parameterlist cols;
+                       res.GetCols(cols);
+
+                       std::vector<KeyVal>* items;
+                       reference<ConfigTag> tag = ConfigTag::create("oper", "<m_sqloper>", 0, items);
+                       for(unsigned int i=0; i < cols.size(); i++)
                        {
-                               /* Returning true here just means the query is in progress, or on it's way to being
-                                * in progress. Nothing about the /oper actually being successful..
-                                * If the oper lookup fails later, we pass the command to the original handler
-                                * for /oper by calling its Handle method directly.
-                                */
-                               return MOD_RES_DENY;
+                               if (!row[i].nul)
+                                       items->insert(std::make_pair(cols[i], row[i]));
                        }
+#else
+                       if (OperUser(user, row[0], row[1]))
+                               return;
+#endif
                }
-               return MOD_RES_PASSTHRU;
+               ServerInstance->Logs->Log("m_sqloper",DEBUG, "SQLOPER: no matches for %s (checked %d rows)", uid.c_str(), res.Rows());
+               // nobody succeeded... fall back to OPER
+               fallback();
        }
 
-       bool LookupOper(User* user, const std::string &username, const std::string &password)
+       void OnError(SQLerror& error)
        {
-               ServiceProvider* prov = ServerInstance->Modules->FindService(SERVICE_DATA, "SQL");
-               if (prov)
-               {
-                       Module* target = prov->creator;
-                       HashProvider* hash = ServerInstance->Modules->FindDataService<HashProvider>("hash/" + hashtype);
-
-                       /* Make an MD5 hash of the password for using in the query */
-                       std::string md5_pass_hash = hash ? hash->hexsum(password) : password;
-
-                       /* We generate our own sum here because some database providers (e.g. SQLite) dont have a builtin md5/sha256 function,
-                        * also hashing it in the module and only passing a remote query containing a hash is more secure.
-                        */
-                       SQLrequest req = SQLrequest(this, target, databaseid,
-                                       SQLquery("SELECT username, password, hostname, type FROM ircd_opers WHERE username = '?' AND password='?'") % username % md5_pass_hash);
-
-                       /* When we get the query response from the service provider we will be given an ID to play with,
-                        * just an ID number which is unique to this query. We need a way of associating that ID with a User
-                        * so we insert it into a map mapping the IDs to users.
-                        * Thankfully m_sqlutils provides this, it will associate a ID with a user or channel, and if the user quits it removes the
-                        * association. This means that if the user quits during a query we will just get a failed lookup from m_sqlutils - telling
-                        * us to discard the query.
-                        */
-                       AssociateUser(this, SQLutils, req.id, user).Send();
-
-                       saved_user.set(user, username);
-                       saved_pass.set(user, password);
-
-                       return true;
-               }
-               else
-               {
-                       ServerInstance->Logs->Log("m_sqloper",SPARSE, "WARNING: Couldn't find SQL provider module. NOBODY will be able to oper up unless their o:line is statically configured");
-                       return false;
-               }
+               ServerInstance->Logs->Log("m_sqloper",DEFAULT, "SQLOPER: query failed (%s)", error.Str());
+               fallback();
        }
 
-       void OnRequest(Request& request)
+       void fallback()
        {
-               if (strcmp(SQLRESID, request.id) == 0)
-               {
-                       SQLresult* res = static_cast<SQLresult*>(&request);
-
-                       User* user = GetAssocUser(this, SQLutils, res->id).S().user;
-                       UnAssociate(this, SQLutils, res->id).S();
-
-                       if (user)
-                       {
-                               std::string* tried_user = saved_user.get(user);
-                               std::string* tried_pass = saved_pass.get(user);
-                               if (res->error.Id() == SQL_NO_ERROR)
-                               {
-                                       if (res->Rows())
-                                       {
-                                               /* We got a row in the result, this means there was a record for the oper..
-                                                * now we just need to check if their host matches, and if it does then
-                                                * oper them up.
-                                                *
-                                                * We now (previous versions of the module didn't) support multiple SQL
-                                                * rows per-oper in the same way the config file does, all rows will be tried
-                                                * until one is found which matches. This is useful to define several different
-                                                * hosts for a single oper.
-                                                *
-                                                * The for() loop works as SQLresult::GetRowMap() returns an empty map when there
-                                                * are no more rows to return.
-                                                */
-
-                                               for (SQLfieldMap& row = res->GetRowMap(); row.size(); row = res->GetRowMap())
-                                               {
-                                                       if (OperUser(user, row["hostname"].d, row["type"].d))
-                                                       {
-                                                               /* If/when one of the rows matches, stop checking and return */
-                                                               saved_user.unset(user);
-                                                               saved_pass.unset(user);
-                                                       }
-                                                       if (tried_user && tried_pass)
-                                                       {
-                                                               LoginFail(user, *tried_user, *tried_pass);
-                                                               saved_user.unset(user);
-                                                               saved_pass.unset(user);
-                                                       }
-                                               }
-                                       }
-                                       else
-                                       {
-                                               /* No rows in result, this means there was no oper line for the user,
-                                                * we should have already checked the o:lines so now we need an
-                                                * "insufficient awesomeness" (invalid credentials) error
-                                                */
-                                               if (tried_user && tried_pass)
-                                               {
-                                                       LoginFail(user, *tried_user, *tried_pass);
-                                                       saved_user.unset(user);
-                                                       saved_pass.unset(user);
-                                               }
-                                       }
-                               }
-                               else
-                               {
-                                       /* This one shouldn't happen, the query failed for some reason.
-                                        * We have to fail the /oper request and give them the same error
-                                        * as above.
-                                        */
-                                       if (tried_user && tried_pass)
-                                       {
-                                               LoginFail(user, *tried_user, *tried_pass);
-                                               saved_user.unset(user);
-                                               saved_pass.unset(user);
-                                       }
-
-                               }
-                       }
-               }
-       }
+               User* user = ServerInstance->FindNick(uid);
+               if (!user)
+                       return;
 
-       void LoginFail(User* user, const std::string &username, const std::string &pass)
-       {
                Command* oper_command = ServerInstance->Parser->GetHandler("OPER");
 
                if (oper_command)
                {
                        std::vector<std::string> params;
                        params.push_back(username);
-                       params.push_back(pass);
+                       params.push_back(password);
                        oper_command->Handle(params, user);
                }
                else
                {
-                       ServerInstance->Logs->Log("m_sqloper",DEBUG, "BUG: WHAT?! Why do we have no OPER command?!");
+                       ServerInstance->Logs->Log("m_sqloper",SPARSE, "BUG: WHAT?! Why do we have no OPER command?!");
                }
        }
 
@@ -220,14 +109,17 @@ public:
        {
                OperIndex::iterator iter = ServerInstance->Config->oper_blocks.find(" " + type);
                if (iter == ServerInstance->Config->oper_blocks.end())
+               {
+                       ServerInstance->Logs->Log("m_sqloper",DEFAULT, "SQLOPER: bad type '%s' in returned row for oper %s", type.c_str(), username.c_str());
                        return false;
+               }
                OperInfo* ifo = iter->second;
 
                std::string hostname(user->ident);
 
                hostname.append("@").append(user->host);
 
-               if (OneOfMatches(hostname.c_str(), user->GetIPString(), pattern.c_str()))
+               if (OneOfMatches(hostname.c_str(), user->GetIPString(), pattern))
                {
                        /* Opertype and host match, looks like this is it. */
 
@@ -237,6 +129,65 @@ public:
 
                return false;
        }
+};
+
+class ModuleSQLOper : public Module
+{
+       std::string query;
+       std::string hashtype;
+       dynamic_reference<SQLProvider> SQL;
+
+public:
+       ModuleSQLOper() : SQL(this, "SQL") {}
+
+       void init()
+       {
+               OnRehash(NULL);
+
+               Implementation eventlist[] = { I_OnRehash, I_OnPreCommand };
+               ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
+       }
+
+       void OnRehash(User* user)
+       {
+               ConfigTag* tag = ServerInstance->Config->ConfValue("sqloper");
+
+               std::string dbid = tag->getString("dbid");
+               if (dbid.empty())
+                       SQL.SetProvider("SQL");
+               else
+                       SQL.SetProvider("SQL/" + dbid);
+
+               hashtype = tag->getString("hash");
+               query = tag->getString("query", "SELECT hostname as host, type FROM ircd_opers WHERE username='$username' AND password='$password'");
+       }
+
+       ModResult OnPreCommand(std::string &command, std::vector<std::string> &parameters, LocalUser *user, bool validated, const std::string &original_line)
+       {
+               if (validated && command == "OPER" && parameters.size() >= 2)
+               {
+                       if (SQL)
+                       {
+                               LookupOper(user, parameters[0], parameters[1]);
+                               /* Query is in progress, it will re-invoke OPER if needed */
+                               return MOD_RES_DENY;
+                       }
+                       ServerInstance->Logs->Log("m_sqloper",DEFAULT, "SQLOPER: database not present");
+               }
+               return MOD_RES_PASSTHRU;
+       }
+
+       void LookupOper(User* user, const std::string &username, const std::string &password)
+       {
+               HashProvider* hash = ServerInstance->Modules->FindDataService<HashProvider>("hash/" + hashtype);
+
+               ParamM userinfo;
+               SQL->PopulateUserInfo(user, userinfo);
+               userinfo["username"] = username;
+               userinfo["password"] = hash ? hash->hexsum(password) : password;
+
+               SQL->submit(new OpMeQuery(this, user->uuid, username, password), query, userinfo);
+       }
 
        Version GetVersion()
        {