sjero.net Git - linphone/blob - coreapi/authentication.c

   1 /***************************************************************************
   2  *            authentication.c
   3  *
   4  *  Fri Jul 16 12:08:34 2004
   5  *  Copyright  2004-2009  Simon MORLAT
   6  *  simon.morlat@linphone.org
   7  ****************************************************************************/
   8
   9 /*
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU Library General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  */
  24
  25 #include "linphonecore.h"
  26 #include "private.h"
  27 #include "lpconfig.h"
  28
  29 /**
  30  * @addtogroup authentication
  31  * @{
  32 **/
  33
  34 /**
  35  * Create a LinphoneAuthInfo object with supplied information.
  36  *
  37  * The object can be created empty, that is with all arguments set to NULL.
  38  * Username, userid, password and realm can be set later using specific methods.
  39 **/
  40 LinphoneAuthInfo *linphone_auth_info_new(const char *username, const char *userid,
  41                                                                                                                 const char *passwd, const char *ha1,const char *realm)
  42 {
  43         LinphoneAuthInfo *obj=ms_new0(LinphoneAuthInfo,1);
  44         if (username!=NULL && (strlen(username)>0) ) obj->username=ms_strdup(username);
  45         if (userid!=NULL && (strlen(userid)>0)) obj->userid=ms_strdup(userid);
  46         if (passwd!=NULL && (strlen(passwd)>0)) obj->passwd=ms_strdup(passwd);
  47         if (ha1!=NULL && (strlen(ha1)>0)) obj->ha1=ms_strdup(ha1);
  48         if (realm!=NULL && (strlen(realm)>0)) obj->realm=ms_strdup(realm);
  49         obj->works=FALSE;
  50         return obj;
  51 }
  52
  53 /**
  54  * Returns username.
  55 **/
  56 const char *linphone_auth_info_get_username(const LinphoneAuthInfo *i){
  57         return i->username;
  58 }
  59
  60 /**
  61  * Returns password.
  62 **/
  63 const char *linphone_auth_info_get_passwd(const LinphoneAuthInfo *i){
  64         return i->passwd;
  65 }
  66
  67 const char *linphone_auth_info_get_userid(const LinphoneAuthInfo *i){
  68         return i->userid;
  69 }
  70
  71 /**
  72  * Sets the password.
  73 **/
  74 void linphone_auth_info_set_passwd(LinphoneAuthInfo *info, const char *passwd){
  75         if (info->passwd!=NULL) {
  76                 ms_free(info->passwd);
  77                 info->passwd=NULL;
  78         }
  79         if (passwd!=NULL && (strlen(passwd)>0)) info->passwd=ms_strdup(passwd);
  80 }
  81
  82 /**
  83  * Sets the username.
  84 **/
  85 void linphone_auth_info_set_username(LinphoneAuthInfo *info, const char *username){
  86         if (info->username){
  87                 ms_free(info->username);
  88                 info->username=NULL;
  89         }
  90         if (username && strlen(username)>0) info->username=ms_strdup(username);
  91 }
  92
  93 /**
  94  * Sets userid.
  95 **/
  96 void linphone_auth_info_set_userid(LinphoneAuthInfo *info, const char *userid){
  97         if (info->userid){
  98                 ms_free(info->userid);
  99                 info->userid=NULL;
 100         }
 101         if (userid && strlen(userid)>0) info->userid=ms_strdup(userid);
 102 }
 103
 104 /**
 105  * Destroys a LinphoneAuthInfo object.
 106 **/
 107 void linphone_auth_info_destroy(LinphoneAuthInfo *obj){
 108         if (obj->username!=NULL) ms_free(obj->username);
 109         if (obj->userid!=NULL) ms_free(obj->userid);
 110         if (obj->passwd!=NULL) ms_free(obj->passwd);
 111         if (obj->ha1!=NULL) ms_free(obj->ha1);
 112         if (obj->realm!=NULL) ms_free(obj->realm);
 113         ms_free(obj);
 114 }
 115
 116 void linphone_auth_info_write_config(LpConfig *config, LinphoneAuthInfo *obj, int pos)
 117 {
 118         char key[50];
 119         sprintf(key,"auth_info_%i",pos);
 120         lp_config_clean_section(config,key);
 121
 122         if (obj==NULL){
 123                 return;
 124         }
 125         if (obj->username!=NULL){
 126                 lp_config_set_string(config,key,"username",obj->username);
 127         }
 128         if (obj->userid!=NULL){
 129                 lp_config_set_string(config,key,"userid",obj->userid);
 130         }
 131         if (obj->passwd!=NULL){
 132                 lp_config_set_string(config,key,"passwd",obj->passwd);
 133         }
 134         if (obj->ha1!=NULL){
 135                 lp_config_set_string(config,key,"ha1",obj->ha1);
 136         }
 137         if (obj->realm!=NULL){
 138                 lp_config_set_string(config,key,"realm",obj->realm);
 139         }
 140 }
 141
 142 LinphoneAuthInfo *linphone_auth_info_new_from_config_file(LpConfig * config, int pos)
 143 {
 144         char key[50];
 145         const char *username,*userid,*passwd,*ha1,*realm;
 146
 147         sprintf(key,"auth_info_%i",pos);
 148         if (!lp_config_has_section(config,key)){
 149                 return NULL;
 150         }
 151
 152         username=lp_config_get_string(config,key,"username",NULL);
 153         userid=lp_config_get_string(config,key,"userid",NULL);
 154         passwd=lp_config_get_string(config,key,"passwd",NULL);
 155         ha1=lp_config_get_string(config,key,"ha1",NULL);
 156         realm=lp_config_get_string(config,key,"realm",NULL);
 157         return linphone_auth_info_new(username,userid,passwd,ha1,realm);
 158 }
 159
 160 static bool_t key_match(const char *tmp1, const char *tmp2){
 161         if (tmp1==NULL && tmp2==NULL) return TRUE;
 162         if (tmp1!=NULL && tmp2!=NULL && strcmp(tmp1,tmp2)==0) return TRUE;
 163         return FALSE;
 164
 165 }
 166
 167 static char * remove_quotes(char * input){
 168         char *tmp;
 169         if (*input=='"') input++;
 170         tmp=strchr(input,'"');
 171         if (tmp) *tmp='\0';
 172         return input;
 173 }
 174
 175 static int realm_match(const char *realm1, const char *realm2){
 176         if (realm1==NULL && realm2==NULL) return TRUE;
 177         if (realm1!=NULL && realm2!=NULL){
 178                 if (strcmp(realm1,realm2)==0) return TRUE;
 179                 else{
 180                         char tmp1[128];
 181                         char tmp2[128];
 182                         char *p1,*p2;
 183                         strncpy(tmp1,realm1,sizeof(tmp1)-1);
 184                         strncpy(tmp2,realm2,sizeof(tmp2)-1);
 185                         p1=remove_quotes(tmp1);
 186                         p2=remove_quotes(tmp2);
 187                         return strcmp(p1,p2)==0;
 188                 }
 189         }
 190         return FALSE;
 191 }
 192
 193 /**
 194  * Retrieves a LinphoneAuthInfo previously entered into the LinphoneCore.
 195 **/
 196 LinphoneAuthInfo *linphone_core_find_auth_info(LinphoneCore *lc, const char *realm, const char *username)
 197 {
 198         MSList *elem;
 199         LinphoneAuthInfo *ret=NULL,*candidate=NULL;
 200         for (elem=lc->auth_info;elem!=NULL;elem=elem->next){
 201                 LinphoneAuthInfo *pinfo=(LinphoneAuthInfo*)elem->data;
 202                 if (realm==NULL){
 203                         /*return the authinfo for any realm provided that there is only one for that username*/
 204                         if (key_match(pinfo->username,username)){
 205                                 if (ret!=NULL){
 206                                         ms_warning("There are several auth info for username '%s'",username);
 207                                         return NULL;
 208                                 }
 209                                 ret=pinfo;
 210                         }
 211                 }else{
 212                         /*return the exact authinfo, or an authinfo for which realm was not supplied yet*/
 213                         if (pinfo->realm!=NULL){
 214                                 if (realm_match(pinfo->realm,realm)
 215                                         && key_match(pinfo->username,username))
 216                                         ret=pinfo;
 217                         }else{
 218                                 if (key_match(pinfo->username,username))
 219                                         candidate=pinfo;
 220                         }
 221                 }
 222         }
 223         if (ret==NULL && candidate!=NULL)
 224                 ret=candidate;
 225         return ret;
 226 }
 227
 228 /**
 229  * Adds authentication information to the LinphoneCore.
 230  *
 231  * This information will be used during all SIP transacations that require authentication.
 232 **/
 233 void linphone_core_add_auth_info(LinphoneCore *lc, LinphoneAuthInfo *info)
 234 {
 235         MSList *elem;
 236         LinphoneAuthInfo *ai;
 237
 238         /* find if we are attempting to modify an existing auth info */
 239         ai=linphone_core_find_auth_info(lc,info->realm,info->username);
 240         if (ai!=NULL){
 241                 elem=ms_list_find(lc->auth_info,ai);
 242                 if (elem==NULL){
 243                         ms_error("AuthInfo list corruption ?");
 244                         return;
 245                 }
 246                 linphone_auth_info_destroy((LinphoneAuthInfo*)elem->data);
 247                 elem->data=(void *)info;
 248         }else {
 249                 lc->auth_info=ms_list_append(lc->auth_info,(void *)info);
 250         }
 251         /* retry pending authentication operations */
 252         for(elem=sal_get_pending_auths(lc->sal);elem!=NULL;elem=elem->next){
 253                 const char *username,*realm;
 254                 SalOp *op=(SalOp*)elem->data;
 255                 LinphoneAuthInfo *ai;
 256                 sal_op_get_auth_requested(op,&realm,&username);
 257                 ai=linphone_core_find_auth_info(lc,realm,username);
 258                 if (ai){
 259                         SalAuthInfo sai;
 260                         sai.username=ai->username;
 261                         sai.userid=ai->userid;
 262                         sai.realm=ai->realm;
 263                         sai.password=ai->passwd;
 264                         sal_op_authenticate(op,&sai);
 265                         ai->usecount++;
 266                 }
 267         }
 268 }
 269
 270
 271 /**
 272  * This method is used to abort a user authentication request initiated by LinphoneCore
 273  * from the auth_info_requested callback of LinphoneCoreVTable.
 274 **/
 275 void linphone_core_abort_authentication(LinphoneCore *lc,  LinphoneAuthInfo *info){
 276 }
 277
 278 /**
 279  * Removes an authentication information object.
 280 **/
 281 void linphone_core_remove_auth_info(LinphoneCore *lc, LinphoneAuthInfo *info){
 282         int len=ms_list_size(lc->auth_info);
 283         int newlen;
 284         int i;
 285         MSList *elem;
 286         lc->auth_info=ms_list_remove(lc->auth_info,info);
 287         newlen=ms_list_size(lc->auth_info);
 288         /*printf("len=%i newlen=%i\n",len,newlen);*/
 289         linphone_auth_info_destroy(info);
 290         for (i=0;i<len;i++){
 291                 linphone_auth_info_write_config(lc->config,NULL,i);
 292         }
 293         for (elem=lc->auth_info,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
 294                 linphone_auth_info_write_config(lc->config,(LinphoneAuthInfo*)elem->data,i);
 295         }
 296 }
 297
 298 /**
 299  * Returns an unmodifiable list of currently entered LinphoneAuthInfo.
 300 **/
 301 const MSList *linphone_core_get_auth_info_list(const LinphoneCore *lc){
 302         return lc->auth_info;
 303 }
 304
 305 /**
 306  * Clear all authentication information.
 307 **/
 308 void linphone_core_clear_all_auth_info(LinphoneCore *lc){
 309         MSList *elem;
 310         int i;
 311         for(i=0,elem=lc->auth_info;elem!=NULL;elem=ms_list_next(elem),i++){
 312                 LinphoneAuthInfo *info=(LinphoneAuthInfo*)elem->data;
 313                 linphone_auth_info_destroy(info);
 314                 linphone_auth_info_write_config(lc->config,NULL,i);
 315         }
 316         ms_list_free(lc->auth_info);
 317         lc->auth_info=NULL;
 318 }
 319
 320 /**
 321  * @}
 322 **/