adodb.php

PhpWiki是sourceforge的一个开源项目

        // Get phptype and dbsyntax
        // $str => phptype(dbsyntax)
        if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
            $parsed['phptype']  = $arr[1];
            $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2];
        } else {
            $parsed['phptype']  = $str;
            $parsed['dbsyntax'] = $str;
        }

        if (!count($dsn)) {
            return $parsed;
        }

        // Get (if found): username and password
        // $dsn => username:password@protocol+hostspec/database
        if (($at = strrpos($dsn,'@')) !== false) {
            $str = substr($dsn, 0, $at);
            $dsn = substr($dsn, $at + 1);
            if (($pos = strpos($str, ':')) !== false) {
                $parsed['username'] = rawurldecode(substr($str, 0, $pos));
                $parsed['password'] = rawurldecode(substr($str, $pos + 1));
            } else {
                $parsed['username'] = rawurldecode($str);
            }
        }

        // Find protocol and hostspec

        // $dsn => proto(proto_opts)/database
        if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) {
            $proto       = $match[1];
            $proto_opts  = $match[2] ? $match[2] : false;
            $dsn         = $match[3];

        // $dsn => protocol+hostspec/database (old format)
        } else {
            if (strpos($dsn, '+') !== false) {
                list($proto, $dsn) = explode('+', $dsn, 2);
            }
            if (strpos($dsn, '/') !== false) {
                list($proto_opts, $dsn) = explode('/', $dsn, 2);
            } else {
                $proto_opts = $dsn;
                $dsn = null;
            }
        }

        // process the different protocol options
        $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp';
        $proto_opts = rawurldecode($proto_opts);
        if ($parsed['protocol'] == 'tcp') {
            if (strpos($proto_opts, ':') !== false) {
                list($parsed['hostspec'], $parsed['port']) = explode(':', $proto_opts);
            } else {
                $parsed['hostspec'] = $proto_opts;
            }
        } elseif ($parsed['protocol'] == 'unix') {
            $parsed['socket'] = $proto_opts;
        }

        // Get dabase if any
        // $dsn => database
        if ($dsn) {
            // /database
            if (($pos = strpos($dsn, '?')) === false) {
                $parsed['database'] = $dsn;
            // /database?param1=value1&param2=value2
            } else {
                $parsed['database'] = substr($dsn, 0, $pos);
                $dsn = substr($dsn, $pos + 1);
                if (strpos($dsn, '&') !== false) {
                    $opts = explode('&', $dsn);
                } else { // database?param1=value1
                    $opts = array($dsn);
                }
                foreach ($opts as $opt) {
                    list($key, $value) = explode('=', $opt);
                    if (!isset($parsed[$key])) {
                        // don't allow params overwrite
                        $parsed[$key] = rawurldecode($value);
                    }
                }
            }
        }

        return $parsed;
    }

// $Log: ADODB.php,v $
// Revision 1.74  2005/02/10 19:04:22  rurban
// move getRow up one level to our backend class
//
// Revision 1.73  2005/02/04 13:43:30  rurban
// fix purge cache error
//
// Revision 1.72  2005/01/29 19:51:03  rurban
// Bugs item #1077769 fixed by frugal.
// Deleted the wrong page. Fix all other tables also.
//
// Revision 1.71  2005/01/25 08:01:00  rurban
// fix listOfFields with different database
//
// Revision 1.70  2005/01/18 20:55:43  rurban
// reformatting and two bug fixes: adding missing parens
//
// Revision 1.69  2004/12/26 17:14:03  rurban
// fix ADODB MostPopular, avoid limit -1, pass hits on empty data
//
// Revision 1.68  2004/12/22 18:33:25  rurban
// fix page _id_cache logic for _get_pageid create_if_missing
//
// Revision 1.67  2004/12/22 15:47:41  rurban
// fix wrong _update_nonempty_table on empty content (i.e. the new deletePage)
//
// Revision 1.66  2004/12/13 14:39:16  rurban
// avoid warning
//
// Revision 1.65  2004/12/10 22:15:00  rurban
// fix $page->get('_cached_html)
// refactor upgrade db helper _convert_cached_html() to be able to call them from WikiAdminUtils also.
// support 2nd genericSqlQuery param (bind huge arg)
//
// Revision 1.64  2004/12/10 02:45:27  rurban
// SQL optimization:
//   put _cached_html from pagedata into a new seperate blob, not huge serialized string.
//   it is only rarelely needed: for current page only, if-not-modified
//   but was extracted for every simple page iteration.
//
// Revision 1.63  2004/12/08 12:55:51  rurban
// support new non-destructive delete_page via generic backend method
//
// Revision 1.62  2004/12/06 19:50:04  rurban
// enable action=remove which is undoable and seeable in RecentChanges: ADODB ony for now.
// renamed delete_page to purge_page.
// enable action=edit&version=-1 to force creation of a new version.
// added BABYCART_PATH config
// fixed magiqc in adodb.inc.php
// and some more docs
//
// Revision 1.61  2004/11/30 17:45:53  rurban
// exists_links backend implementation
//
// Revision 1.60  2004/11/28 20:42:18  rurban
// Optimize PearDB _extract_version_data and _extract_page_data.
//
// Revision 1.59  2004/11/27 14:39:05  rurban
// simpified regex search architecture:
//   no db specific node methods anymore,
//   new sql() method for each node
//   parallel to regexp() (which returns pcre)
//   regex types bitmasked (op's not yet)
// new regex=sql
// clarified WikiDB::quote() backend methods:
//   ->quote() adds surrounsing quotes
//   ->qstr() (new method) assumes strings and adds no quotes! (in contrast to ADODB)
//   pear and adodb have now unified quote methods for all generic queries.
//
// Revision 1.58  2004/11/26 18:39:02  rurban
// new regex search parser and SQL backends (90% complete, glob and pcre backends missing)
//
// Revision 1.57  2004/11/25 17:20:51  rurban
// and again a couple of more native db args: backlinks
//
// Revision 1.56  2004/11/23 13:35:48  rurban
// add case_exact search
//
// Revision 1.55  2004/11/21 11:59:26  rurban
// remove final \n to be ob_cache independent
//
// Revision 1.54  2004/11/20 17:49:39  rurban
// add fast exclude support to SQL get_all_pages
//
// Revision 1.53  2004/11/20 17:35:58  rurban
// improved WantedPages SQL backends
// PageList::sortby new 3rd arg valid_fields (override db fields)
// WantedPages sql pager inexact for performance reasons:
//   assume 3 wantedfrom per page, to be correct, no getTotal()
// support exclude argument for get_all_pages, new _sql_set()
//
// Revision 1.52  2004/11/17 20:07:17  rurban
// just whitespace
//
// Revision 1.51  2004/11/15 15:57:37  rurban
// silent cache warning
//
// Revision 1.50  2004/11/10 19:32:23  rurban
// * optimize increaseHitCount, esp. for mysql.
// * prepend dirs to the include_path (phpwiki_dir for faster searches)
// * Pear_DB version logic (awful but needed)
// * fix broken ADODB quote
// * _extract_page_data simplification
//
// Revision 1.49  2004/11/10 15:29:21  rurban
// * requires newer Pear_DB (as the internal one): quote() uses now escapeSimple for strings
// * ACCESS_LOG_SQL: fix cause request not yet initialized
// * WikiDB: moved SQL specific methods upwards
// * new Pear_DB quoting: same as ADODB and as newer Pear_DB.
//   fixes all around: WikiGroup, WikiUserNew SQL methods, SQL logging
//
// Revision 1.48  2004/11/09 17:11:16  rurban
// * revert to the wikidb ref passing. there's no memory abuse there.
// * use new wikidb->_cache->_id_cache[] instead of wikidb->_iwpcache, to effectively
//   store page ids with getPageLinks (GleanDescription) of all existing pages, which
//   are also needed at the rendering for linkExistingWikiWord().
//   pass options to pageiterator.
//   use this cache also for _get_pageid()
//   This saves about 8 SELECT count per page (num all pagelinks).
// * fix passing of all page fields to the pageiterator.
// * fix overlarge session data which got broken with the latest ACCESS_LOG_SQL changes
//
// Revision 1.47  2004/11/06 17:11:42  rurban
// The optimized version doesn't query for pagedata anymore.
//
// Revision 1.46  2004/11/01 10:43:58  rurban
// seperate PassUser methods into seperate dir (memory usage)
// fix WikiUser (old) overlarge data session
// remove wikidb arg from various page class methods, use global ->_dbi instead
// ...
//
// Revision 1.45  2004/10/14 17:19:17  rurban
// allow most_popular sortby arguments
//
// Revision 1.44  2004/09/06 08:33:09  rurban
// force explicit mysql auto-incrementing, atomic version
//
// Revision 1.43  2004/07/10 08:50:24  rurban
// applied patch by Philippe Vanhaesendonck:
//   pass column list to iterators so we can FETCH_NUM in all cases.
//   bind UPDATE pramas for huge pagedata.
//   portable oracle backend
//
// Revision 1.42  2004/07/09 10:06:50  rurban
// Use backend specific sortby and sortable_columns method, to be able to
// select between native (Db backend) and custom (PageList) sorting.
// Fixed PageList::AddPageList (missed the first)
// Added the author/creator.. name to AllPagesBy...
//   display no pages if none matched.
// Improved dba and file sortby().
// Use &$request reference
//
// Revision 1.41  2004/07/08 21:32:35  rurban
// Prevent from more warnings, minor db and sort optimizations
//
// Revision 1.40  2004/07/08 16:56:16  rurban
// use the backendType abstraction
//
// Revision 1.39  2004/07/05 13:56:22  rurban
// sqlite autoincrement fix
//
// Revision 1.38  2004/07/05 12:57:54  rurban
// add mysql timeout
//
// Revision 1.37  2004/07/04 10:24:43  rurban
// forgot the expressions
//
// Revision 1.36  2004/07/03 16:51:06  rurban
// optional DBADMIN_USER:DBADMIN_PASSWD for action=upgrade (if no ALTER permission)
// added atomic mysql REPLACE for PearDB as in ADODB
// fixed _lock_tables typo links => link
// fixes unserialize ADODB bug in line 180
//
// Revision 1.35  2004/06/28 14:45:12  rurban
// fix adodb_sqlite to have the same dsn syntax as pear, use pconnect if requested
//
// Revision 1.34  2004/06/28 14:17:38  rurban
// updated DSN parser from Pear. esp. for sqlite
//
// Revision 1.33  2004/06/27 10:26:02  rurban
// oci8 patch by Philippe Vanhaesendonck + some ADODB notes+fixes
//
// Revision 1.32  2004/06/25 14:15:08  rurban
// reduce memory footprint by caching only requested pagedate content (improving most page iterators)
//
// Revision 1.31  2004/06/16 10:38:59  rurban
// Disallow refernces in calls if the declaration is a reference
// ("allow_call_time_pass_reference clean").
//   PhpWiki is now allow_call_time_pass_reference = Off clean,
//   but several external libraries may not.
//   In detail these libs look to be affected (not tested):
//   * Pear_DB odbc
//   * adodb oracle
//
// Revision 1.30  2004/06/07 19:31:31  rurban
// fixed ADOOB upgrade: listOfFields()
//
// Revision 1.29  2004/05/12 10:49:55  rurban
// require_once fix for those libs which are loaded before FileFinder and
//   its automatic include_path fix, and where require_once doesn't grok
//   dirname(__FILE__) != './lib'
// upgrade fix with PearDB
// navbar.tmpl: remove spaces for IE   button alignment
//
// Revision 1.28  2004/05/06 19:26:16  rurban
// improve stability, trying to find the InlineParser endless loop on sf.net
//
// remove end-of-zip comments to fix sf.net bug #777278 and probably #859628
//
// Revision 1.27  2004/05/06 17:30:38  rurban
// CategoryGroup: oops, dos2unix eol
// improved phpwiki_version:
//   pre -= .0001 (1.3.10pre: 1030.099)
//   -p1 += .001 (1.3.9-p1: 1030.091)
// improved InstallTable for mysql and generic SQL versions and all newer tables so far.
// abstracted more ADODB/PearDB methods for action=upgrade stuff:
//   backend->backendType(), backend->database(),
//   backend->listOfFields(),
//   backend->listOfTables(),
//
// Revision 1.26  2004/04/26 20:44:35  rurban
// locking table specific for better databases
//
// Revision 1.25  2004/04/20 00:06:04  rurban
// themable paging support
//
// Revision 1.24  2004/04/18 01:34:20  rurban
// protect most_popular from sortby=mtime
//
// Revision 1.23  2004/04/16 14:19:39  rurban
// updated ADODB notes
//

// (c-file-style: "gnu")
// Local Variables:
// mode: php
// tab-width: 8
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:   
?>