| 1 | /* |
| 2 | ** Copyright 2000-2008 Double Precision, Inc. See COPYING for |
| 3 | ** distribution information. |
| 4 | */ |
| 5 | #if HAVE_CONFIG_H |
| 6 | #include "courier_auth_config.h" |
| 7 | #endif |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <string.h> |
| 11 | #include <errno.h> |
| 12 | #include <pwd.h> |
| 13 | #if HAVE_UNISTD_H |
| 14 | #include <unistd.h> |
| 15 | #endif |
| 16 | |
| 17 | extern "C" { |
| 18 | #include "auth.h" |
| 19 | #include "courierauthstaticlist.h" |
| 20 | #include "courierauth.h" |
| 21 | #include "courierauthdebug.h" |
| 22 | #include "libhmac/hmac.h" |
| 23 | } |
| 24 | |
| 25 | #include "authsqlite.h" |
| 26 | |
| 27 | static int auth_sqlite_pre(const char *user, const char *service, |
| 28 | int (*callback)(struct authinfo *, void *), void *arg) |
| 29 | { |
| 30 | authsqliteuserinfo authinfo; |
| 31 | struct authinfo aa; |
| 32 | |
| 33 | if (!auth_sqlite_getuserinfo(user, service, authinfo)) |
| 34 | // Fatal error - such as Sqlite being down |
| 35 | return (1); |
| 36 | |
| 37 | if (authinfo.home.empty()) // User not found |
| 38 | return (-1); |
| 39 | |
| 40 | memset(&aa, 0, sizeof(aa)); |
| 41 | |
| 42 | /*aa.sysusername=user;*/ |
| 43 | aa.sysuserid= &authinfo.uid; |
| 44 | aa.sysgroupid= authinfo.gid; |
| 45 | aa.homedir=authinfo.home.c_str(); |
| 46 | aa.maildir=authinfo.maildir.empty() ? NULL:authinfo.maildir.c_str(); |
| 47 | aa.address=authinfo.username.c_str(); |
| 48 | aa.passwd=authinfo.cryptpw.c_str(); |
| 49 | aa.clearpasswd=authinfo.clearpw.c_str(); |
| 50 | aa.fullname=authinfo.fullname.c_str(); |
| 51 | aa.quota=authinfo.quota.empty() ? NULL:authinfo.quota.c_str(); |
| 52 | aa.options=authinfo.options.c_str(); |
| 53 | return ((*callback)(&aa, arg)); |
| 54 | } |
| 55 | |
| 56 | extern void auth_sqlite_enumerate( void(*cb_func)(const char *name, |
| 57 | uid_t uid, |
| 58 | gid_t gid, |
| 59 | const char *homedir, |
| 60 | const char *maildir, |
| 61 | const char *options, |
| 62 | void *void_arg), |
| 63 | void *void_arg); |
| 64 | |
| 65 | static bool docheckpw(authsqliteuserinfo &authinfo, const char *pass) |
| 66 | { |
| 67 | if (!authinfo.cryptpw.empty()) |
| 68 | { |
| 69 | if (authcheckpassword(pass, authinfo.cryptpw.c_str())) |
| 70 | { |
| 71 | errno=EPERM; |
| 72 | return false; /* User/Password not found. */ |
| 73 | } |
| 74 | } |
| 75 | else if (!authinfo.clearpw.empty()) |
| 76 | { |
| 77 | if (authinfo.clearpw != pass) |
| 78 | { |
| 79 | if (courier_authdebug_login_level >= 2) |
| 80 | { |
| 81 | DPRINTF("supplied password '%s' does not match clearpasswd '%s'", |
| 82 | pass, authinfo.clearpw.c_str()); |
| 83 | } |
| 84 | else |
| 85 | { |
| 86 | DPRINTF("supplied password does not match clearpasswd"); |
| 87 | } |
| 88 | errno=EPERM; |
| 89 | return false; |
| 90 | } |
| 91 | } |
| 92 | else |
| 93 | { |
| 94 | DPRINTF("no password available to compare"); |
| 95 | errno=EPERM; |
| 96 | return false; /* Username not found */ |
| 97 | } |
| 98 | return true; |
| 99 | } |
| 100 | |
| 101 | static int auth_sqlite_login(const char *service, char *authdata, |
| 102 | int (*callback_func)(struct authinfo *, void *), |
| 103 | void *callback_arg) |
| 104 | { |
| 105 | char *user, *pass; |
| 106 | authsqliteuserinfo authinfo; |
| 107 | struct authinfo aa; |
| 108 | |
| 109 | |
| 110 | if ((user=strtok(authdata, "\n")) == 0 || |
| 111 | (pass=strtok(0, "\n")) == 0) |
| 112 | { |
| 113 | errno=EPERM; |
| 114 | return (-1); |
| 115 | } |
| 116 | |
| 117 | if (!auth_sqlite_getuserinfo(user, service, authinfo)) |
| 118 | // Fatal error - such as Sqlite being down |
| 119 | { |
| 120 | errno=EACCES; |
| 121 | return (1); |
| 122 | } |
| 123 | |
| 124 | if (!docheckpw(authinfo, pass)) |
| 125 | return (-1); |
| 126 | |
| 127 | memset(&aa, 0, sizeof(aa)); |
| 128 | |
| 129 | aa.sysuserid= &authinfo.uid; |
| 130 | aa.sysgroupid= authinfo.gid; |
| 131 | aa.homedir=authinfo.home.c_str(); |
| 132 | aa.maildir=authinfo.maildir.empty() ? NULL:authinfo.maildir.c_str(); |
| 133 | aa.address=authinfo.username.c_str(); |
| 134 | aa.quota=authinfo.quota.empty() ? NULL:authinfo.quota.c_str(); |
| 135 | aa.fullname=authinfo.fullname.c_str(); |
| 136 | aa.options=authinfo.options.c_str(); |
| 137 | aa.clearpasswd=pass; |
| 138 | aa.passwd=authinfo.cryptpw.c_str(); |
| 139 | courier_authdebug_authinfo("DEBUG: authsqlite: ", &aa, |
| 140 | authinfo.clearpw.c_str(), |
| 141 | authinfo.cryptpw.c_str()); |
| 142 | |
| 143 | return (*callback_func)(&aa, callback_arg); |
| 144 | } |
| 145 | |
| 146 | static int auth_sqlite_changepw(const char *service, const char *user, |
| 147 | const char *pass, |
| 148 | const char *newpass) |
| 149 | { |
| 150 | authsqliteuserinfo authinfo; |
| 151 | |
| 152 | if (!auth_sqlite_getuserinfo(user, service, authinfo)) |
| 153 | { |
| 154 | errno=ENOENT; |
| 155 | return (-1); |
| 156 | } |
| 157 | |
| 158 | if (!docheckpw(authinfo, pass)) |
| 159 | { |
| 160 | errno=EPERM; |
| 161 | return (-1); /* User/Password not found. */ |
| 162 | } |
| 163 | |
| 164 | if (auth_sqlite_setpass(user, newpass, authinfo.cryptpw.c_str())) |
| 165 | { |
| 166 | errno=EPERM; |
| 167 | return (-1); |
| 168 | } |
| 169 | return (0); |
| 170 | } |
| 171 | |
| 172 | static int auth_sqlite_cram(const char *service, |
| 173 | const char *authtype, char *authdata, |
| 174 | int (*callback_func)(struct authinfo *, void *), |
| 175 | void *callback_arg) |
| 176 | { |
| 177 | struct cram_callback_info cci; |
| 178 | |
| 179 | if (auth_get_cram(authtype, authdata, &cci)) |
| 180 | return (-1); |
| 181 | |
| 182 | cci.callback_func=callback_func; |
| 183 | cci.callback_arg=callback_arg; |
| 184 | |
| 185 | return auth_sqlite_pre(cci.user, service, &auth_cram_callback, &cci); |
| 186 | } |
| 187 | |
| 188 | int auth_sqlite(const char *service, const char *authtype, char *authdata, |
| 189 | int (*callback_func)(struct authinfo *, void *), |
| 190 | void *callback_arg) |
| 191 | { |
| 192 | if (strcmp(authtype, AUTHTYPE_LOGIN) == 0) |
| 193 | return (auth_sqlite_login(service, authdata, |
| 194 | callback_func, callback_arg)); |
| 195 | |
| 196 | return (auth_sqlite_cram(service, authtype, authdata, |
| 197 | callback_func, callback_arg)); |
| 198 | } |
| 199 | |
| 200 | extern int auth_sqlite_pre(const char *user, const char *service, |
| 201 | int (*callback)(struct authinfo *, void *), |
| 202 | void *arg); |
| 203 | |
| 204 | static struct authstaticinfo authsqlite_info={ |
| 205 | "authsqlite", |
| 206 | auth_sqlite, |
| 207 | auth_sqlite_pre, |
| 208 | auth_sqlite_cleanup, |
| 209 | auth_sqlite_changepw, |
| 210 | auth_sqlite_cleanup, |
| 211 | auth_sqlite_enumerate}; |
| 212 | |
| 213 | extern "C" { |
| 214 | struct authstaticinfo *courier_authsqlite_init() |
| 215 | { |
| 216 | return &authsqlite_info; |
| 217 | } |
| 218 | } |