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| Code | ||||||||||||||||||||||||||||||||||||
<?php_track_vars?> <? # $Header: /usr/local/www/docs/lorentz.com/RCS/mysql.php3,v 1.24 1998/07/28 15:04:13 franklin Exp $ # # Author: Jack McKinney [email protected] # # You may redistribute this as long as you leave this attribution in. # # This script accepts a hostname and database name from the user and then # uses HTTP basic authentication to get a username and password from the # user. It tries to connect to the named mysql database on the named host # using the supplied username and password. If it fails, it prompts the # user for a new username and password. # # Once successful, the script queries the database for all tables, and then # queries each table for all fields. It outputs a form that has a section # each each table listing each field. # # The user can then fill in some or all of the fields, and press one of three # supplied buttons, SELECT, INSERT, DELETE, to take an appropriate action. # In using SELECT, there are several special options: # # If the value supplied is prefixed by an <, =, >, or ~, then that specific # comparison is used instead of the default = (~ becomes LIKE). # # If the value begins with a '$', the remainder is taken as a field name # in this or another table (i.e., it is not quoted), so that an inner join or # self-join can be performed. # # FUTURE # # - Limit number of results returned per page. # - Have option to show query as well as results. # - Have option to not perform query (i.e., use above option to preview first) # - Have option to enter own query in a TEXTAREA (preferably combined with # previous option: display query in a TEXTAREA for editing). # - Ability to click on a record and have the original form displayed with # this data filled in (for updates and future inserts). # - Add UPDATE. Hmmm... tricky, tricky, tricky. # - Add a create table interface (probably in a second script). # - Add a place to type in special expressions to select (e.g., # ROOM.LENGTH*ROOM.WIDTH AS AREA) # function bad_auth() { global $database; Header( "WWW-authenticate: basic realm=\"Database ".$database. "\""); Header( "HTTP/1.0 401 Unauthorized"); $title = "Invalid login"; echo "<HTML>\n"; echo " <HEAD>\n"; echo " <TITLE>Authorization Required</TITLE>\n"; echo " </HEAD>\n"; echo " <BODY BGCOLOR=#FFFFFF TEXT=#000000>\n"; echo " I need a username and password with which to access the database.<P>\n"; echo " </BODY>\n"; echo "</HTML>\n"; exit; } $database=$HTTP_POST_VARS[ "DATABASE"]; $hostname=$HTTP_POST_VARS[ "HOSTNAME"]; if(!$database) { ?> <HTML> <HEAD> <TITLE>MySQL/PHP Interface</TITLE> </HEAD> <BODY BGCOLOR=#FFFFFF TEXT=#000000> <CENTER> <FORM ACTION=mysql.php3 METHOD=POST> <TABLE> <TR> <TD>Hostname:</TD> <TD><INPUT TYPE=TEXT NAME=HOSTNAME VALUE="localhost" SIZE=40> </TR> <TR> <TD>Database:</TD> <TD><INPUT TYPE=TEXT NAME=DATABASE SIZE=40> </TR> <TR> <TD COLSPAN=2 ALIGN=CENTER><INPUT TYPE=SUBMIT NAME=SHOW VALUE=SHOW></TD> </TR> </TABLE> </FORM> </BODY> </HTML> <? exit; } if(!isset($PHP_AUTH_USER)) bad_auth(); $username = $PHP_AUTH_USER; $password = $PHP_AUTH_PW; $dblink = @mysql_pconnect($hostname,$username,$password); if(!$dblink) bad_auth(); ?> <HTML> <HEAD> <TITLE> <?echo "$database@$hostname"?></TITLE> </HEAD> <BODY BGCOLOR=#FFFFFF TEXT=#000000> <CENTER> <H1> <? echo "$database@$hostname" ?></H1> <? $tableh = mysql_list_tables($database); if(!$tableh) { ?> Could not read list of tables </CENTER> </BODY> </HTML> <? exit; } $tableno = mysql_num_rows($tableh); if(!$tableno) { ?> MySQL claims this database is empty! </CENTER> </BODY> </HTML> <? exit; } for($i=0;$i<$tableno;$i++) { $table = mysql_tablename($tableh,$i); $fieldh = mysql_list_fields($database,$table); $fieldno = mysql_num_fields($fieldh); for($j=0;$j<$fieldno;$j++) { $name = mysql_field_name($fieldh,$j); $tables[$table][$name][ "type"] = mysql_field_type($fieldh,$j); $tables[$table][$name][ "len"] = mysql_field_len($fieldh,$j); } mysql_free_result($fieldh); } mysql_free_result($tableh); if($HTTP_POST_VARS[ "SELECT"]) $command = "SELECT"; if($HTTP_POST_VARS[ "INSERT"]) $command = "INSERT"; if($HTTP_POST_VARS[ "DELETE"]) $command = "DELETE"; if($command) { if(!mysql_select_db($database,$dblink)) { $error = mysql_error($dblink); ?> <H1><FONT COLOR=#0000AA>MySQL at <? echo $hostname ?> returned an error:</FONT></H1> </CENTER> <FONT COLOR=#DD0000> <PRE> <? echo $error ?> </PRE> </BODY> </HTML> <? exit; } $parts = $HTTP_POST_VARS[ "PARTS"]; for($part=1;$part <= $parts;$part++) { $ftable = $HTTP_POST_VARS[ "TABLE".$part]; $ffield = $HTTP_POST_VARS[ "FIELD".$part]; $fdatum = $HTTP_POST_VARS[ "DATUM".$part]; $faction = $HTTP_POST_VARS[ "ACTION".$part]; if(strlen($fdatum)) { $qdata[$ftable][$ffield] = $fdatum; $kludge[$ftable] = $ftable; if(ereg( "^[$]]([^$]][^.]*).",$fdatum,$re) || ereg( "^[<>=~] *[$]]([^.]+).",$fdatum,$re)) $kludge[$re[1]] = $re[1]; } $qaction[$ftable][$ffield] = $faction; } if($qdata) { $tablecount = count($kludge); if($command == "SELECT") { for(reset($kludge);$stable = key($kludge);next($kludge)) { $sfields = $qaction[$stable]; for(reset($sfields);$sfield = key($sfields);next($sfields)) { $action = $sfields[$sfield]; if($tablecount > 1) $sfield = "$stable.$sfield"; if($action != "IGNORE" && $select) $select .= ","; if($action == "SELECT") $select .= $sfield; if($action == "DISTINCT") $select .= "DISTINCT $sfield"; if($action == "ORDERBY") { $select .= $sfield; if($orderby) $orderby .= ","; $orderby .= $sfield; } if($action == "SUM") $select .= "sum($sfield)"; if($action == "COUNT") $select .= "count($sfield)"; if($action == "AVG") $select .= "avg($sfield)"; if($action == "MIN") $select .= "min($sfield)"; if($action == "MAX") $select .= "max($sfield)"; } } } if($command == "SELECT" || $command == "DELETE") { for(reset($qdata);$qtable = key($qdata);next($qdata)) { if($command == "DELETE") { $from = $qtable; $where = ""; } $qfields = $qdata[$qtable]; for(reset($qfields);$qfield = key($qfields);next($qfields)) { $cmp = "="; $qdatum = $qfields[$qfield]; # ereg_replace("''","''''",$qdatum); if(ereg( "^([<>=~]) +(.*)",$qdatum,$re)) { $cmp = $re[1]; if($cmp == "~") $cmp = "LIKE"; $qdatum = $re[2]; } if($command == "SELECT" && ereg( "^[$]]([^$]].*)",$qdatum,$re)) { $qdatum = $re[1]; if($tablecount > 1 && !ereg( "\.",$qdatum)) $qdatum = "$qtable.$qdatum"; } else if($tables[$qtable][$qfield][ "type"] != "int") { $qdatum = "'$qdatum'"; } if($tablecount > 1) $qfield = "$qtable.$qfield"; if($where) $where .= "\n AND "; $where .= "$qfield $cmp $qdatum"; } if($command == "DELETE") $query .= "DELETE FROM $qtable WHERE $where\n\n"; } if($command == "SELECT") { $from = join($kludge, ","); $query = "SELECT $select\nFROM $from\nWHERE $where\n"; if($orderby) $query .= "ORDER BY $orderby\n"; } } else if($command == "INSERT") { for(reset($qdata);$qtable = key($qdata);next($qdata)) { $qfields = $qdata[$qtable]; for(reset($qfields);$qfield = key($qfields);next($qfields)) { $qdatum = $qfields[$qfield]; if($tables[$qtable][$qfield][ "type"] != "int") $qdatum = "'$qdatum'"; if($columns) $columns .= ","; $columns .= $qfield; if($values) $values .= ","; $values .= $qdatum; } $query .= "INSERT INTO $qtable ($columns)\nVALUES ($values)\n\n"; } } echo "<TABLE><TR><TD><PRE>$query</PRE></TD></TR></TABLE>\n"; $start = microtime(); $result = mysql_query($query,$dblink); $end = microtime(); $start = explode( " ",$start); $end = explode( " ",$end); $interval = round(0.5 + 1000*($end[1]-$start[1] + $end[0]-$start[0])); if(!$result) { $error = mysql_error($dblink); ?> <H1><FONT COLOR=#0000AA>MySQL at <? echo $hostname ?> returned an error:</FONT></H1> </CENTER> <FONT COLOR=#DD0000> <PRE> <? echo $error ?> </PRE> </BODY> </HTML> <? exit; } if($command == "SELECT") { $colno = mysql_num_fields($result); $rowno = mysql_num_rows($result); if($rowno != 1) $s = "s"; echo "<TABLE BORDER>\n <TR>\n"; echo " <TR><TD COLSPAN=$colno ALIGN=CENTER>$rowno result$s, $interval msec</TD></TR>\n"; for($i=0;$i<$colno;$i++) { $name = mysql_field_name($result,$i); echo " <TD><B>$name</B></TD>\n"; } echo " </TR>\n"; while($rowno--) { echo " <TR>\n"; $row = mysql_fetch_row($result); for($i=0;$i<$colno;$i++) { $value = $row[$i]; if(!$value) $value = ""; echo " <TD>$value</TD>\n"; } echo " </TR>\n"; } echo "</TABLE>\n"; } else { if($command == "INSERT") $action = "added"; if($command == "DELETE") $action = "deleted"; $rows = mysql_affected_rows($dblink); $s = "s"; if($rows == 1) $s = ""; echo "$rows row$s $action, $interval msec"; } } ?> </CENTER> </BODY> </HTML> <? exit; } ?> <FORM ACTION=mysql.php3 METHOD=POST> <INPUT TYPE=HIDDEN NAME=DATABASE VALUE=" <? echo $database ?>"> <INPUT TYPE=HIDDEN NAME=HOSTNAME VALUE=" <? echo $hostname ?>"> <? $parts = 0; for(reset($tables);$table = key($tables);next($tables)) { echo "<HR>\n"; echo "<TABLE>\n"; echo " <TR>\n"; echo " <TD COLSPAN=3 ALIGN=CENTER><B>$table</TD>\n"; echo " </TR>\n"; $fields = $tables[$table]; for(reset($fields); $field = key($fields); next($fields)) { $type = $fields[$field][ "type"]; $len = $fields[$field][ "len"]; $parts++; echo " <TR>\n"; echo " <TD>$field</TD>\n"; ?> <TD> <SELECT NAME=ACTION <? echo $parts ?>> <OPTION VALUE=SELECT SELECTED>Select <OPTION VALUE=DISTINCT>Select Distinct <OPTION VALUE=ORDERBY>Order By <OPTION VALUE=SUM>sum() <OPTION VALUE=COUNT>count() <OPTION VALUE=AVG>avg() <OPTION VALUE=MIN>min() <OPTION VALUE=MAX>max() <OPTION VALUE=IGNORE>Don't Select </SELECT> </TD> <? if($type == "int" || $type == "real") { $size=10; $maxlength=40; } else if($type == "string") { $size = $len; if($size > 40) $size = 40; $maxlength = $len; $type .= "[".$len. "]"; } echo " <TD>\n"; echo " <INPUT TYPE=HIDDEN NAME=FIELD$parts VALUE='$field'>\n"; echo " <INPUT TYPE=HIDDEN NAME=TABLE$parts VALUE='$table'>\n"; echo " <INPUT TYPE=TEXT NAME=DATUM$parts SIZE=$size MAXLENGTH=$maxlength>\n"; echo " </TD>\n"; echo " <TD><I>(".$type. ")</I></TD>\n"; echo " </TR>\n"; } echo " </TABLE>\n"; } ?> <HR> <TABLE> <TR> <TD><INPUT TYPE=SUBMIT NAME=SELECT VALUE="Select"></TD> <TD><INPUT TYPE=SUBMIT NAME=INSERT VALUE="Insert"></TD> <TD><INPUT TYPE=SUBMIT NAME=DELETE VALUE="Delete"></TD> </TR> </TABLE> </CENTER> <INPUT TYPE=HIDDEN NAME=PARTS VALUE= <? echo $parts ?>> </FORM> </BODY> </HTML> | ||||||||||||||||||||||||||||||||||||
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