Fossil

Check-in [52b9caa5]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Coding style tweak.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | login-with-email
Files: files | file ages | folders
SHA3-256: 52b9caa5027e717f02deb6d012ee2a2d99cd968d151f6e4d7b87d1fa8b88cc1b
User & Date: mistachkin 2018-08-11 23:51:03.743
Context
2018-08-12
10:42
Merge the fix to the login-by-email-address patch. ... (check-in: 9b4e157b user: drh tags: trunk)
2018-08-11
23:51
Coding style tweak. ... (Closed-Leaf check-in: 52b9caa5 user: mistachkin tags: login-with-email)
16:59
Fix to checkin [8c91be8b], which was intended to allow the user to log in with the email found in the contact info field of the user table. That checkin is fine as far as it goes, but it only works if the caller doesn't subsequently try to use the passed user name for anything else, since it isn't actually a user name. This checkin causes the low-level login checking function to re-point the user name pointer at the actual login name discovered while scanning for matching email addresses. ... (check-in: 33522ff4 user: wyoung tags: login-with-email)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/login.c.
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
** <human@example.com>".  In that case, *zUsername will point to that
** user's actual login name on return, causing a leak unless the caller
** is diligent enough to check whether its pointer was re-pointed.
**
** zPassword may be either the plain-text form or the encrypted
** form of the user's password.
*/
int login_search_uid(const char **zUsername, const char *zPasswd){
  char *zSha1Pw = sha1_shared_secret(zPasswd, *zUsername, 0);
  int uid = db_int(0,
    "SELECT uid FROM user"
    " WHERE login=%Q"
    "   AND length(cap)>0 AND length(pw)>0"
    "   AND login NOT IN ('anonymous','nobody','developer','reader')"
    "   AND (pw=%Q OR (length(pw)<>40 AND pw=%Q))"
    "   AND (info NOT LIKE '%%expires 20%%'"
    "      OR substr(info,instr(lower(info),'expires')+8,10)>datetime('now'))",
    *zUsername, zSha1Pw, zPasswd
  );

  /* If we did not find a login on the first attempt, and the username
  ** looks like an email address, then perhaps the user entered their
  ** email address instead of their login.  Try again to match the user
  ** against email addresses contained in the "info" field.
  */
  if( uid==0 && strchr(*zUsername,'@')!=0 ){
    Stmt q;
    db_prepare(&q,
      "SELECT login FROM user"
      " WHERE find_emailaddr(info)=%Q"
      "   AND instr(login,'@')==0",
      *zUsername
    );
    while( db_step(&q)==SQLITE_ROW ){
      const char *zLogin = db_column_text(&q,0);
      if( (uid = login_search_uid(&zLogin, zPasswd) ) != 0 ){
        *zUsername = fossil_strdup(zLogin);
        break;
      }
    }
    db_finalize(&q);
  }    
  free(zSha1Pw);
  return uid;







|
|








|







|





|




|







215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
** <human@example.com>".  In that case, *zUsername will point to that
** user's actual login name on return, causing a leak unless the caller
** is diligent enough to check whether its pointer was re-pointed.
**
** zPassword may be either the plain-text form or the encrypted
** form of the user's password.
*/
int login_search_uid(const char **pzUsername, const char *zPasswd){
  char *zSha1Pw = sha1_shared_secret(zPasswd, *pzUsername, 0);
  int uid = db_int(0,
    "SELECT uid FROM user"
    " WHERE login=%Q"
    "   AND length(cap)>0 AND length(pw)>0"
    "   AND login NOT IN ('anonymous','nobody','developer','reader')"
    "   AND (pw=%Q OR (length(pw)<>40 AND pw=%Q))"
    "   AND (info NOT LIKE '%%expires 20%%'"
    "      OR substr(info,instr(lower(info),'expires')+8,10)>datetime('now'))",
    *pzUsername, zSha1Pw, zPasswd
  );

  /* If we did not find a login on the first attempt, and the username
  ** looks like an email address, then perhaps the user entered their
  ** email address instead of their login.  Try again to match the user
  ** against email addresses contained in the "info" field.
  */
  if( uid==0 && strchr(*pzUsername,'@')!=0 ){
    Stmt q;
    db_prepare(&q,
      "SELECT login FROM user"
      " WHERE find_emailaddr(info)=%Q"
      "   AND instr(login,'@')==0",
      *pzUsername
    );
    while( db_step(&q)==SQLITE_ROW ){
      const char *zLogin = db_column_text(&q,0);
      if( (uid = login_search_uid(&zLogin, zPasswd) ) != 0 ){
        *pzUsername = fossil_strdup(zLogin);
        break;
      }
    }
    db_finalize(&q);
  }    
  free(zSha1Pw);
  return uid;