[373] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * userdb.h -- functions to handle a user database
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| 4 | * Copyright (C) 1999 DigiLib Systems Limited, New Zealand
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| 5 | *
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[533] | 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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[373] | 9 | *
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[533] | 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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[373] | 24 | *********************************************************************/
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| 25 |
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| 26 |
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| 27 | #ifndef USERDB_H
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| 28 | #define USERDB_H
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| 29 |
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[13844] | 30 | #define ERRNO_SUCCEED 0
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| 31 | #define ERRNO_CONNECTIONFAILED -1
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| 32 | #define ERRNO_USERNOTFOUND -2
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| 33 | #define ERRNO_EXISTINGUSERNAME -3
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| 34 | #define ERRNO_MISSINGPASSWORD -4
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| 35 | #define ERRNO_PASSWORDMISMATCH -5
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| 36 | #define ERRNO_GDBMACTIONFILED -6
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[373] | 37 |
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| 38 |
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[15432] | 39 | #include "gdbmclass.h"
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[373] | 40 |
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[13844] | 41 | // The user information object and it provides basic functions for the information object, such as clear and copy (=) functions;
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| 42 | class userinfo_t
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| 43 | {
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| 44 | public:
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[373] | 45 | text_t username;
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| 46 | text_t password;
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| 47 | bool enabled;
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| 48 | text_t groups; // comma separated list
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| 49 | text_t comment;
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[13844] | 50 |
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| 51 | userinfo_t ();
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| 52 | virtual ~userinfo_t();
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| 53 | userinfo_t &operator=(const userinfo_t &x);
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| 54 | void clear ();
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[373] | 55 | };
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| 56 |
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[13844] | 57 | typedef vector<userinfo_t> userinfo_tarray; // more space efficient than text_tlist
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[373] | 58 |
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[13844] | 59 | class userdbclass
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| 60 | {
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| 61 | protected:
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| 62 | // The internal storage for the userdbfilename and the userdb object
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| 63 | gdbmclass userdb;
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| 64 | bool external_db;
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| 65 | bool activated;
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[14269] | 66 | text_t storeduserdbfilename;
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[13844] | 67 |
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| 68 | public:
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| 69 | userdbclass (const text_t &userdbfilename);
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| 70 | userdbclass (const gdbmclass &external_userdb);
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| 71 | virtual ~userdbclass();
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[373] | 72 |
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[13844] | 73 | //======== the static methods========//
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| 74 | // the password line in the userinfo_t must be encrypted using
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| 75 | // this function
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| 76 | static text_t crypt_text (const text_t &text);
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| 77 | // username_ok tests to make sure a username is ok. a username
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| 78 | // must be at least 2 characters long, but no longer than 30
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| 79 | // characters long. it can contain the characters a-z A-Z 0-9
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| 80 | // . and _
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| 81 | static bool username_ok (const text_t &username);
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| 82 | // password_ok tests to make sure a password is ok. a password
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| 83 | // must be at least 3 characters long but no longer than 8 characters
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| 84 | // long. it can contain any character in the range 0x20-0x7e
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| 85 | static bool password_ok (const text_t &password);
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| 86 | // removes spaces from user groups
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| 87 | static text_t format_user_groups(const text_t user_groups);
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| 88 |
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| 89 | //======== functions dealing with single user in the user databases ========//
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| 90 | // returns true on success (in which case userinfo will contain
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| 91 | // the information for this user)
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| 92 | int get_user_info (const text_t &username, userinfo_t &userinfo);
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| 93 |
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| 94 | // returns true on success
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| 95 | int set_user_info (const text_t &username, const userinfo_t &userinfo);
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| 96 |
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| 97 | // returns true if the user's password is correct.
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| 98 | int check_passwd (const text_t &username, const text_t &password);
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| 99 |
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| 100 | // adds a user from the user database -- forever
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| 101 | int add_user (const userinfo_t &userinfo);
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| 102 |
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| 103 | // edits a user from the user database -- forever
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| 104 | int edit_user (const userinfo_t &userinfo);
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| 105 |
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| 106 | // removes a user from the user database -- forever
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| 107 | int delete_user (const text_t &username);
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| 108 |
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| 109 | //======== functions dealing with multiple users in the user databases ========//
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| 110 | // gets all the users' information in the database. returns true
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| 111 | // on success
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| 112 | int get_all_users(userinfo_tarray &userinfo_array);
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| 113 |
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| 114 | // gets a list of all the users in the database. returns true
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| 115 | // on success
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| 116 | int get_user_list (text_tarray &userlist);
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| 117 | };
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[373] | 118 |
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[13844] | 119 | class keydbclass
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| 120 | {
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| 121 | protected:
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| 122 | // The internal storage for the userdbfilename and the userdb object
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| 123 | gdbmclass keydb;
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| 124 | bool external_db;
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| 125 | bool activated;
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[14269] | 126 | text_t storedkeydbfilename;
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[13844] | 127 |
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| 128 | public:
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| 129 | keydbclass (const text_t &keydbfilename);
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| 130 | keydbclass (const gdbmclass &external_keydb);
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| 131 | virtual ~keydbclass();
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| 132 | // functions dealing with databases of temporary keys
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| 133 |
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| 134 | // generates a random key for the user, stores it in the database and
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| 135 | // returns it so that it can be used in page generation
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| 136 | // returns "" on failure
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| 137 | text_t generate_key (const text_t &username);
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| 138 |
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| 139 | // checks to see if there is a key for this particular user in the
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| 140 | // database that hasn't decayed. a short decay is used when group
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| 141 | // is set to administrator
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| 142 | bool check_key (const userinfo_t &thisuser, const text_t &key, const text_t &group, int keydecay);
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| 143 |
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| 144 | // remove_old_keys will remove all keys created more than keydecay ago.
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| 145 | // use sparingly, it can be quite an expensive function
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| 146 | void remove_old_keys (int keydecay);
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| 147 | };
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[373] | 148 |
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| 149 | #endif
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