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< ? php
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/** Get database connection
* @ return Min_DB
*/
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function connection () {
// can be used in customization, $connection is minified
global $connection ;
return $connection ;
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}
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/** Get Adminer object
* @ return Adminer
*/
function adminer () {
global $adminer ;
return $adminer ;
}
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/** Unescape database identifier
* @ param string text inside ``
* @ return string
*/
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function idf_unescape ( $idf ) {
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$last = substr ( $idf , - 1 );
return str_replace ( $last . $last , $last , substr ( $idf , 1 , - 1 ));
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}
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/** Escape string to use inside ''
* @ param string
* @ return string
*/
function escape_string ( $val ) {
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return substr ( q ( $val ), 1 , - 1 );
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}
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/** Disable magic_quotes_gpc
* @ param array e . g . ( & $_GET , & $_POST , & $_COOKIE )
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* @ param bool whether to leave values as is
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* @ return null modified in place
*/
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function remove_slashes ( $process , $filter = false ) {
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if ( get_magic_quotes_gpc ()) {
while ( list ( $key , $val ) = each ( $process )) {
foreach ( $val as $k => $v ) {
unset ( $process [ $key ][ $k ]);
if ( is_array ( $v )) {
$process [ $key ][ stripslashes ( $k )] = $v ;
$process [] = & $process [ $key ][ stripslashes ( $k )];
} else {
$process [ $key ][ stripslashes ( $k )] = ( $filter ? $v : stripslashes ( $v ));
}
}
}
}
}
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/** Escape or unescape string to use inside form []
* @ param string
* @ param bool
* @ return string
*/
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function bracket_escape ( $idf , $back = false ) {
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// escape brackets inside name="x[]"
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static $trans = array ( ':' => ':1' , ']' => ':2' , '[' => ':3' );
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return strtr ( $idf , ( $back ? array_flip ( $trans ) : $trans ));
}
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/** Escape for HTML
* @ param string
* @ return string
*/
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function h ( $string ) {
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return htmlspecialchars ( str_replace ( " \0 " , " " , $string ), ENT_QUOTES );
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}
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/** Escape for TD
* @ param string
* @ return string
*/
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function nbsp ( $string ) {
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return ( trim ( $string ) != " " ? h ( $string ) : " " );
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}
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/** Convert \n to < br >
* @ param string
* @ return string
*/
function nl_br ( $string ) {
return str_replace ( " \n " , " <br> " , $string ); // nl2br() uses XHTML before PHP 5.3
}
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/** Generate HTML checkbox
* @ param string
* @ param string
* @ param bool
* @ param string
* @ param string
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* @ param string
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* @ return string
*/
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function checkbox ( $name , $value , $checked , $label = " " , $onclick = " " , $class = " " ) {
$return = " <input type='checkbox' name=' $name ' value=' " . h ( $value ) . " ' "
. ( $checked ? " checked " : " " )
. ( $onclick ? ' onclick="' . h ( $onclick ) . '"' : '' )
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. " > "
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;
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return ( $label != " " || $class ? " <label " . ( $class ? " class=' $class ' " : " " ) . " > $return " . h ( $label ) . " </label> " : $return );
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}
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/** Generate list of HTML options
* @ param array array of strings or arrays ( creates optgroup )
* @ param mixed
* @ param bool always use array keys for value = " " , otherwise only string keys are used
* @ return string
*/
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function optionlist ( $options , $selected = null , $use_keys = false ) {
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$return = " " ;
foreach ( $options as $k => $v ) {
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$opts = array ( $k => $v );
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if ( is_array ( $v )) {
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$return .= '<optgroup label="' . h ( $k ) . '">' ;
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$opts = $v ;
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}
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foreach ( $opts as $key => $val ) {
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$return .= '<option' . ( $use_keys || is_string ( $key ) ? ' value="' . h ( $key ) . '"' : '' ) . (( $use_keys || is_string ( $key ) ? ( string ) $key : $val ) === $selected ? ' selected' : '' ) . '>' . h ( $val );
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}
if ( is_array ( $v )) {
$return .= '</optgroup>' ;
}
}
return $return ;
}
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/** Generate HTML radio list
* @ param string
* @ param array
* @ param string
* @ param string true for no onchange , false for radio
* @ return string
*/
function html_select ( $name , $options , $value = " " , $onchange = true ) {
if ( $onchange ) {
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return " <select name=' " . h ( $name ) . " ' " . ( is_string ( $onchange ) ? ' onchange="' . h ( $onchange ) . '"' : " " ) . " > " . optionlist ( $options , $value ) . " </select> " ;
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}
$return = " " ;
foreach ( $options as $key => $val ) {
$return .= " <label><input type='radio' name=' " . h ( $name ) . " ' value=' " . h ( $key ) . " ' " . ( $key == $value ? " checked " : " " ) . " > " . h ( $val ) . " </label> " ;
}
return $return ;
}
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/** Generate HTML < select > or < input > if $options are empty
* @ param string
* @ param array
* @ param string
* @ param string
* @ return string
*/
function select_input ( $attrs , $options , $value = " " , $placeholder = " " ) {
return ( $options
? " <select $attrs ><option value=''> $placeholder " . optionlist ( $options , $value , true ) . " </select> "
: " <input $attrs value=' " . h ( $value ) . " ' placeholder=' $placeholder '> "
);
}
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/** Get onclick confirmation
* @ return string
*/
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function confirm () {
return " onclick= \" return confirm(' " . lang ( 'Are you sure?' ) . " '); \" " ;
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}
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/** Print header for hidden fieldset ( close by </ div ></ fieldset > )
* @ param string
* @ param string
* @ param bool
* @ param string
* @ return null
*/
function print_fieldset ( $id , $legend , $visible = false , $onclick = " " ) {
echo " <fieldset><legend><a href='#fieldset- $id ' onclick= \" " . h ( $onclick ) . " return !toggle('fieldset- $id '); \" > $legend </a></legend><div id='fieldset- $id ' " . ( $visible ? " " : " class='hidden' " ) . " > \n " ;
}
/** Return class = 'active' if $bold is true
* @ param bool
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* @ param string
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* @ return string
*/
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function bold ( $bold , $class = " " ) {
return ( $bold ? " class='active $class ' " : ( $class ? " class=' $class ' " : " " ));
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}
/** Generate class for odd rows
* @ param string return this for odd rows , empty to reset counter
* @ return string
*/
function odd ( $return = ' class="odd"' ) {
static $i = 0 ;
if ( ! $return ) { // reset counter
$i = - 1 ;
}
return ( $i ++ % 2 ? $return : '' );
}
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/** Escape string for JavaScript apostrophes
* @ param string
* @ return string
*/
function js_escape ( $string ) {
return addcslashes ( $string , " \r \n ' \\ / " ); // slash for <script>
}
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/** Print one row in JSON object
* @ param string or " " to close the object
* @ param string
* @ return null
*/
function json_row ( $key , $val = null ) {
static $first = true ;
if ( $first ) {
echo " { " ;
}
if ( $key != " " ) {
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echo ( $first ? " " : " , " ) . " \n \t \" " . addcslashes ( $key , " \r \n \" \\ / " ) . '": ' . ( $val !== null ? '"' . addcslashes ( $val , " \r \n \" \\ / " ) . '"' : 'undefined' );
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$first = false ;
} else {
echo " \n } \n " ;
$first = true ;
}
}
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/** Get INI boolean value
* @ param string
* @ return bool
*/
function ini_bool ( $ini ) {
$val = ini_get ( $ini );
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return ( preg_match ( '~^(on|true|yes)$~i' , $val ) || ( int ) $val ); // boolean values set by php_value are strings
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}
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/** Check if SID is neccessary
* @ return bool
*/
function sid () {
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static $return ;
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if ( $return === null ) { // restart_session() defines SID
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$return = ( SID && ! ( $_COOKIE && ini_bool ( " session.use_cookies " ))); // $_COOKIE - don't pass SID with permanent login
}
return $return ;
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}
/** Shortcut for $connection -> quote ( $string )
* @ param string
* @ return string
*/
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function q ( $string ) {
global $connection ;
return $connection -> quote ( $string );
}
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/** Get list of values from database
* @ param string
* @ param mixed
* @ return array
*/
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function get_vals ( $query , $column = 0 ) {
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global $connection ;
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$return = array ();
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$result = $connection -> query ( $query );
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if ( is_object ( $result )) {
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while ( $row = $result -> fetch_row ()) {
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$return [] = $row [ $column ];
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}
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}
return $return ;
}
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/** Get keys from first column and values from second
* @ param string
* @ param Min_DB
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* @ param float
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* @ return array
*/
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function get_key_vals ( $query , $connection2 = null , $timeout = 0 ) {
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global $connection ;
if ( ! is_object ( $connection2 )) {
$connection2 = $connection ;
}
$return = array ();
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$connection2 -> timeout = $timeout ;
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$result = $connection2 -> query ( $query );
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$connection2 -> timeout = 0 ;
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if ( is_object ( $result )) {
while ( $row = $result -> fetch_row ()) {
$return [ $row [ 0 ]] = $row [ 1 ];
}
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}
return $return ;
}
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/** Get all rows of result
* @ param string
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* @ param Min_DB
* @ param string
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* @ return array associative
*/
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function get_rows ( $query , $connection2 = null , $error = " <p class='error'> " ) {
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global $connection ;
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$conn = ( is_object ( $connection2 ) ? $connection2 : $connection );
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$return = array ();
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$result = $conn -> query ( $query );
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if ( is_object ( $result )) { // can return true
while ( $row = $result -> fetch_assoc ()) {
$return [] = $row ;
}
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} elseif ( ! $result && ! is_object ( $connection2 ) && $error && defined ( " PAGE_HEADER " )) {
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echo $error . error () . " \n " ;
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}
return $return ;
}
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/** Find unique identifier of a row
* @ param array
* @ param array result of indexes ()
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* @ return array or null if there is no unique identifier
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*/
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function unique_array ( $row , $indexes ) {
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foreach ( $indexes as $index ) {
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if ( preg_match ( " ~PRIMARY|UNIQUE~ " , $index [ " type " ])) {
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$return = array ();
foreach ( $index [ " columns " ] as $key ) {
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if ( ! isset ( $row [ $key ])) { // NULL is ambiguous
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continue 2 ;
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}
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$return [ $key ] = $row [ $key ];
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}
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return $return ;
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}
}
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}
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/** Create SQL condition from parsed query string
* @ param array parsed query string
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* @ param array
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* @ return string
*/
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function where ( $where , $fields = array ()) {
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global $jush ;
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$return = array ();
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$function_pattern = '(^[\w\(]+(' . str_replace ( " _ " , " .* " , preg_quote ( idf_escape ( " _ " ))) . ')?\)+$)' ; //! columns looking like functions
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foreach (( array ) $where [ " where " ] as $key => $val ) {
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$key = bracket_escape ( $key , 1 ); // 1 - back
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$column = ( preg_match ( $function_pattern , $key ) ? $key : idf_escape ( $key )); //! SQL injection
$return [] = $column
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. (( $jush == " sql " && preg_match ( '~^[0-9]*\\.[0-9]*$~' , $val )) || $jush == " mssql "
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? " LIKE " . q ( addcslashes ( $val , " %_ \\ " ))
: " = " . unconvert_field ( $fields [ $key ], q ( $val ))
) // LIKE because of floats but slow with ints, in MS SQL because of text
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; //! enum and set
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if ( $jush == " sql " && preg_match ( " ~[^ -@]~ " , $val )) { // not just [a-z] to catch non-ASCII characters
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$return [] = " $column = " . q ( $val ) . " COLLATE utf8_bin " ;
}
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}
foreach (( array ) $where [ " null " ] as $key ) {
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$return [] = ( preg_match ( $function_pattern , $key ) ? $key : idf_escape ( $key )) . " IS NULL " ;
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}
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return implode ( " AND " , $return );
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}
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/** Create SQL condition from query string
* @ param string
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* @ param array
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* @ return string
*/
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function where_check ( $val , $fields = array ()) {
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parse_str ( $val , $check );
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remove_slashes ( array ( & $check ));
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return where ( $check , $fields );
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}
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/** Create query string where condition from value
* @ param int condition order
* @ param string column identifier
* @ param string
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* @ param string
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* @ return string
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*/
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function where_link ( $i , $column , $value , $operator = " = " ) {
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return " &where%5B $i %5D%5Bcol%5D= " . urlencode ( $column ) . " &where%5B $i %5D%5Bop%5D= " . urlencode (( $value !== null ? $operator : " IS NULL " )) . " &where%5B $i %5D%5Bval%5D= " . urlencode ( $value );
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}
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/** Get select clause for convertible fields
* @ param array
* @ param array
* @ param array
* @ return string
*/
function convert_fields ( $columns , $fields , $select = array ()) {
$return = " " ;
foreach ( $columns as $key => $val ) {
if ( $select && ! in_array ( idf_escape ( $key ), $select )) {
continue ;
}
$as = convert_field ( $fields [ $key ]);
if ( $as ) {
$return .= " , $as AS " . idf_escape ( $key );
}
}
return $return ;
}
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/** Set cookie valid on current path
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* @ param string
* @ param string
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* @ param int number of seconds , 0 for session cookie
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* @ return bool
*/
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function cookie ( $name , $value , $lifetime = 2592000 ) { // 2592000 - 30 days
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global $HTTPS ;
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$params = array (
$name ,
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( preg_match ( " ~ \n ~ " , $value ) ? " " : $value ), // HTTP Response Splitting protection in PHP < 5.1.2
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( $lifetime ? time () + $lifetime : 0 ),
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preg_replace ( '~\\?.*~' , '' , $_SERVER [ " REQUEST_URI " ]),
" " ,
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$HTTPS
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);
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if ( version_compare ( PHP_VERSION , '5.2.0' ) >= 0 ) {
$params [] = true ; // HttpOnly
}
return call_user_func_array ( 'setcookie' , $params );
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}
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/** Restart stopped session
* @ return null
*/
function restart_session () {
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if ( ! ini_bool ( " session.use_cookies " )) {
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session_start ();
}
}
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/** Stop session if it would be possible to restart it later
* @ return null
*/
function stop_session () {
if ( ! ini_bool ( " session.use_cookies " )) {
session_write_close ();
}
}
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/** Get session variable for current server
* @ param string
* @ return mixed
*/
function & get_session ( $key ) {
return $_SESSION [ $key ][ DRIVER ][ SERVER ][ $_GET [ " username " ]];
}
/** Set session variable for current server
* @ param string
* @ param mixed
* @ return mixed
*/
function set_session ( $key , $val ) {
$_SESSION [ $key ][ DRIVER ][ SERVER ][ $_GET [ " username " ]] = $val ; // used also in auth.inc.php
}
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/** Get authenticated URL
* @ param string
* @ param string
* @ param string
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* @ param string
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* @ return string
*/
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function auth_url ( $vendor , $server , $username , $db = null ) {
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global $drivers ;
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preg_match ( '~([^?]*)\\??(.*)~' , remove_from_uri ( implode ( " | " , array_keys ( $drivers )) . " |username| " . ( $db !== null ? " db| " : " " ) . session_name ()), $match );
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return " $match[1] ? "
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. ( sid () ? SID . " & " : " " )
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. ( $vendor != " server " || $server != " " ? urlencode ( $vendor ) . " = " . urlencode ( $server ) . " & " : " " )
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. " username= " . urlencode ( $username )
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. ( $db != " " ? " &db= " . urlencode ( $db ) : " " )
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. ( $match [ 2 ] ? " & $match[2] " : " " )
;
}
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/** Find whether it is an AJAX request
* @ return bool
*/
function is_ajax () {
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return ( $_SERVER [ " HTTP_X_REQUESTED_WITH " ] == " XMLHttpRequest " );
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}
2009-08-31 10:11:52 +00:00
/** Send Location header and exit
2010-04-15 14:59:40 +00:00
* @ param string null to only set a message
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* @ param string
* @ return null
*/
2007-07-09 06:12:22 +00:00
function redirect ( $location , $message = null ) {
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if ( $message !== null ) {
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restart_session ();
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$_SESSION [ " messages " ][ preg_replace ( '~^[^?]*~' , '' , ( $location !== null ? $location : $_SERVER [ " REQUEST_URI " ]))][] = $message ;
2007-07-09 06:12:22 +00:00
}
2012-05-14 06:54:07 +00:00
if ( $location !== null ) {
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if ( $location == " " ) {
$location = " . " ;
}
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header ( " Location: $location " );
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exit ;
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}
2007-07-09 06:12:22 +00:00
}
2009-08-31 10:11:52 +00:00
/** Execute query and redirect if successful
* @ param string
* @ param string
* @ param string
* @ param bool
* @ param bool
* @ param bool
* @ return bool
*/
2008-09-03 13:55:43 +00:00
function query_redirect ( $query , $location , $message , $redirect = true , $execute = true , $failed = false ) {
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global $connection , $error , $adminer ;
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$time = " " ;
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if ( $execute ) {
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$start = microtime ( true );
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$failed = ! $connection -> query ( $query );
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$time = " ; -- " . format_time ( $start , microtime ( true ));
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}
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$sql = " " ;
if ( $query ) {
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$sql = $adminer -> messageQuery ( $query . $time );
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}
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if ( $failed ) {
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$error = error () . $sql ;
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return false ;
2008-09-02 08:42:14 +00:00
}
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if ( $redirect ) {
redirect ( $location , $message . $sql );
}
return true ;
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}
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/** Execute and remember query
2011-03-08 01:31:59 +00:00
* @ param string null to return remembered queries , end with ';' to use DELIMITER
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* @ return Min_Result
*/
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function queries ( $query = null ) {
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global $connection ;
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static $queries = array ();
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if ( $query === null ) {
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// return executed queries without parameter
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return implode ( " \n " , $queries );
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}
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$start = microtime ( true );
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$return = $connection -> query ( $query );
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$queries [] = ( preg_match ( '~;$~' , $query ) ? " DELIMITER ;; \n $query ; \n DELIMITER " : $query )
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. " ; -- " . format_time ( $start , microtime ( true ));
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return $return ;
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}
2010-05-17 16:18:32 +00:00
/** Apply command to all array items
* @ param string
* @ param array
* @ param callback
* @ return bool
*/
function apply_queries ( $query , $tables , $escape = 'table' ) {
foreach ( $tables as $table ) {
if ( ! queries ( " $query " . $escape ( $table ))) {
return false ;
}
}
return true ;
}
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/** Redirect by remembered queries
* @ param string
* @ param string
* @ param bool
2010-10-15 13:51:40 +00:00
* @ return bool
2009-10-13 20:01:52 +00:00
*/
function queries_redirect ( $location , $message , $redirect ) {
return query_redirect ( queries (), $location , $message , $redirect , false , ! $redirect );
}
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/** Format time difference
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* @ param string output of microtime ( true )
* @ param string output of microtime ( true )
2013-05-08 17:46:16 +00:00
* @ return string HTML code
*/
function format_time ( $start , $end ) {
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return lang ( '%.3f s' , max ( 0 , $end - $start ));
2013-05-08 17:46:16 +00:00
}
2009-08-31 10:11:52 +00:00
/** Remove parameter from query string
* @ param string
* @ return string
*/
2007-07-27 11:43:44 +00:00
function remove_from_uri ( $param = " " ) {
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return substr ( preg_replace ( " ~(?<=[?&])( $param " . ( SID ? " " : " | " . session_name ()) . " )=[^&]*&~ " , '' , " $_SERVER[REQUEST_URI] & " ), 0 , - 1 );
2007-07-27 11:43:44 +00:00
}
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/** Generate page number for pagination
* @ param int
2012-09-16 13:43:55 +00:00
* @ param int
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* @ return string
*/
2010-04-22 12:37:56 +00:00
function pagination ( $page , $current ) {
2013-07-06 17:31:21 +00:00
return " " . ( $page == $current
? $page + 1
: '<a href="' . h ( remove_from_uri ( " page " ) . ( $page ? " &page= $page " . ( $_GET [ " next " ] ? " &next= " . urlencode ( $_GET [ " next " ]) : " " ) : " " )) . '">' . ( $page + 1 ) . " </a> "
);
2008-08-07 08:02:54 +00:00
}
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/** Get file contents from $_FILES
2009-08-31 10:11:52 +00:00
* @ param string
* @ param bool
2009-11-21 09:08:52 +00:00
* @ return mixed int for error , string otherwise
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*/
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function get_file ( $key , $decompress = false ) {
$file = $_FILES [ $key ];
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if ( ! $file ) {
return null ;
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}
2013-04-26 20:26:08 +00:00
foreach ( $file as $key => $val ) {
$file [ $key ] = ( array ) $val ;
}
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$return = '' ;
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foreach ( $file [ " error " ] as $key => $error ) {
if ( $error ) {
return $error ;
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}
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$name = $file [ " name " ][ $key ];
$tmp_name = $file [ " tmp_name " ][ $key ];
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$content = file_get_contents ( $decompress && preg_match ( '~\\.gz$~' , $name )
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? " compress.zlib:// $tmp_name "
2013-04-26 20:26:08 +00:00
: $tmp_name
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); //! may not be reachable because of open_basedir
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if ( $decompress ) {
$start = substr ( $content , 0 , 3 );
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if ( function_exists ( " iconv " ) && preg_match ( " ~^ \xFE \xFF |^ \xFF \xFE ~ " , $start , $regs )) { // not ternary operator to save memory
2013-04-26 20:26:08 +00:00
$content = iconv ( " utf-16 " , " utf-8 " , $content );
} elseif ( $start == " \xEF \xBB \xBF " ) { // UTF-8 BOM
$content = substr ( $content , 3 );
}
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$return .= $content . " \n \n " ;
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} else {
$return .= $content ;
2013-04-26 20:26:08 +00:00
}
2011-03-07 13:27:03 +00:00
}
2013-04-26 20:26:08 +00:00
//! support SQL files not ending with semicolon
2013-04-28 15:12:21 +00:00
return $return ;
2007-07-09 06:12:22 +00:00
}
2009-08-31 10:11:52 +00:00
/** Determine upload error
* @ param int
* @ return string
*/
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function upload_error ( $error ) {
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$max_size = ( $error == UPLOAD_ERR_INI_SIZE ? ini_get ( " upload_max_filesize " ) : 0 ); // post_max_size is checked in index.php
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return ( $error ? lang ( 'Unable to upload a file.' ) . ( $max_size ? " " . lang ( 'Maximum allowed file size is %sB.' , $max_size ) : " " ) : lang ( 'File does not exist.' ));
2009-07-16 13:46:49 +00:00
}
2011-07-27 07:04:43 +00:00
/** Create repeat pattern for preg
2010-10-18 23:40:49 +00:00
* @ param string
2011-07-27 07:04:43 +00:00
* @ param int
* @ return string
2010-10-18 23:40:49 +00:00
*/
2011-07-27 07:04:43 +00:00
function repeat_pattern ( $pattern , $length ) {
// fix for Compilation failed: number too big in {} quantifier
return str_repeat ( " $pattern { 0,65535} " , $length / 65535 ) . " $pattern { 0, " . ( $length % 65535 ) . " } " ; // can create {0,0} which is OK
2010-10-18 23:40:49 +00:00
}
2009-08-31 10:11:52 +00:00
/** Check whether the string is in UTF - 8
* @ param string
* @ return bool
*/
2009-06-11 05:05:35 +00:00
function is_utf8 ( $val ) {
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// don't print control chars except \t\r\n
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return ( preg_match ( '~~u' , $val ) && ! preg_match ( '~[\\0-\\x8\\xB\\xC\\xE-\\x1F]~' , $val ));
}
2009-08-31 10:11:52 +00:00
/** Shorten UTF - 8 string
* @ param string
* @ param int
* @ param string
* @ return string escaped string with appended ...
*/
2009-06-15 09:07:05 +00:00
function shorten_utf8 ( $string , $length = 80 , $suffix = " " ) {
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if ( ! preg_match ( " (^( " . repeat_pattern ( " [ \t \r \n - \ x { FFFF}] " , $length ) . " )( $ )?)u " , $string , $match )) { // ~s causes trash in $match[2] under some PHP versions, (.|\n) is slow
preg_match ( " (^( " . repeat_pattern ( " [ \t \r \n -~] " , $length ) . " )( $ )?) " , $string , $match );
2009-08-25 14:17:58 +00:00
}
2010-05-20 21:05:25 +00:00
return h ( $match [ 1 ]) . $suffix . ( isset ( $match [ 2 ]) ? " " : " <i>...</i> " );
2007-08-24 16:00:10 +00:00
}
2008-10-03 12:40:20 +00:00
2009-08-31 10:11:52 +00:00
/** Generate friendly URL
* @ param string
* @ return string
*/
2009-06-11 05:18:40 +00:00
function friendly_url ( $val ) {
2009-06-21 23:20:32 +00:00
// used for blobs and export
2009-06-11 05:18:40 +00:00
return preg_replace ( '~[^a-z0-9_]~i' , '-' , $val );
}
2009-08-31 10:11:52 +00:00
/** Print hidden fields
* @ param array
* @ param array
* @ return null
*/
2008-10-09 13:23:54 +00:00
function hidden_fields ( $process , $ignore = array ()) {
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while ( list ( $key , $val ) = each ( $process )) {
if ( is_array ( $val )) {
foreach ( $val as $k => $v ) {
$process [ $key . " [ $k ] " ] = $v ;
}
} elseif ( ! in_array ( $key , $ignore )) {
2009-07-28 16:20:50 +00:00
echo '<input type="hidden" name="' . h ( $key ) . '" value="' . h ( $val ) . '">' ;
2008-10-03 13:15:58 +00:00
}
}
}
2009-07-03 09:16:50 +00:00
2010-04-21 12:01:32 +00:00
/** Print hidden fields for GET forms
* @ return null
*/
function hidden_fields_get () {
2010-12-20 17:09:13 +00:00
echo ( sid () ? '<input type="hidden" name="' . session_name () . '" value="' . h ( session_id ()) . '">' : '' );
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echo ( SERVER !== null ? '<input type="hidden" name="' . DRIVER . '" value="' . h ( SERVER ) . '">' : " " );
echo '<input type="hidden" name="username" value="' . h ( $_GET [ " username " ]) . '">' ;
}
2013-06-24 12:53:23 +00:00
/** Get status of a single table and fall back to name on error
* @ param string
* @ param bool
* @ return array
*/
function table_status1 ( $table , $fast = false ) {
$return = table_status ( $table , $fast );
return ( $return ? $return : array ( " Name " => $table ));
}
2009-08-31 10:11:52 +00:00
/** Find out foreign keys for each column
* @ param string
* @ return array array ( $col => array ())
*/
2009-07-23 14:42:38 +00:00
function column_foreign_keys ( $table ) {
2010-10-29 11:58:08 +00:00
global $adminer ;
2009-07-23 14:42:38 +00:00
$return = array ();
2010-10-29 11:58:08 +00:00
foreach ( $adminer -> foreignKeys ( $table ) as $foreign_key ) {
2009-07-23 14:42:38 +00:00
foreach ( $foreign_key [ " source " ] as $val ) {
$return [ $val ][] = $foreign_key ;
}
}
return $return ;
}
2010-04-21 12:01:32 +00:00
/** Print enum input field
* @ param string " radio " | " checkbox "
* @ param string
* @ param array
* @ param mixed int | string | array
2011-01-21 16:36:56 +00:00
* @ param string
2010-04-21 12:01:32 +00:00
* @ return null
*/
2011-01-21 16:36:56 +00:00
function enum_input ( $type , $attrs , $field , $value , $empty = null ) {
2011-01-18 13:06:23 +00:00
global $adminer ;
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preg_match_all ( " ~'((?:[^']|'')*)'~ " , $field [ " length " ], $matches );
2012-05-14 06:54:07 +00:00
$return = ( $empty !== null ? " <label><input type=' $type ' $attrs value=' $empty ' " . (( is_array ( $value ) ? in_array ( $empty , $value ) : $value === 0 ) ? " checked " : " " ) . " ><i> " . lang ( 'empty' ) . " </i></label> " : " " );
2010-04-21 12:01:32 +00:00
foreach ( $matches [ 1 ] as $i => $val ) {
$val = stripcslashes ( str_replace ( " '' " , " ' " , $val ));
$checked = ( is_int ( $value ) ? $value == $i + 1 : ( is_array ( $value ) ? in_array ( $i + 1 , $value ) : $value === $val ));
2011-01-18 13:06:23 +00:00
$return .= " <label><input type=' $type ' $attrs value=' " . ( $i + 1 ) . " ' " . ( $checked ? ' checked' : '' ) . '>' . h ( $adminer -> editVal ( $val , $field )) . '</label>' ;
2010-04-21 12:01:32 +00:00
}
2010-10-22 22:28:48 +00:00
return $return ;
2010-04-21 12:01:32 +00:00
}
2009-08-31 10:11:52 +00:00
/** Print edit input field
* @ param array one field from fields ()
* @ param mixed
* @ param string
* @ return null
*/
2009-07-23 14:42:38 +00:00
function input ( $field , $value , $function ) {
2013-02-20 00:57:04 +00:00
global $connection , $types , $adminer , $jush ;
2009-07-28 16:20:50 +00:00
$name = h ( bracket_escape ( $field [ " field " ]));
2009-07-03 09:16:50 +00:00
echo " <td class='function'> " ;
2013-08-09 22:49:34 +00:00
if ( is_array ( $value ) && ! $function ) {
$args = array ( $value );
if ( version_compare ( PHP_VERSION , 5.4 ) >= 0 ) {
$args [] = JSON_PRETTY_PRINT ;
}
$value = call_user_func_array ( 'json_encode' , $args ); //! requires PHP 5.2
$function = " json " ;
}
2010-11-28 15:35:34 +00:00
$reset = ( $jush == " mssql " && $field [ " auto_increment " ]);
if ( $reset && ! $_POST [ " save " ]) {
$function = null ;
}
$functions = ( isset ( $_GET [ " select " ]) || $reset ? array ( " orig " => lang ( 'original' )) : array ()) + $adminer -> editFunctions ( $field );
2010-09-09 11:03:10 +00:00
$attrs = " name='fields[ $name ]' " ;
2009-07-03 09:16:50 +00:00
if ( $field [ " type " ] == " enum " ) {
2010-10-22 22:28:48 +00:00
echo nbsp ( $functions [ " " ]) . " <td> " . $adminer -> editInput ( $_GET [ " edit " ], $field , $attrs , $value );
2009-07-03 09:16:50 +00:00
} else {
2009-09-08 08:13:39 +00:00
$first = 0 ;
foreach ( $functions as $key => $val ) {
if ( $key === " " || ! $val ) {
break ;
}
$first ++ ;
}
2013-08-10 00:00:05 +00:00
$onchange = ( $first ? " onchange= \" var f = this.form['function[ " . h ( js_escape ( bracket_escape ( $field [ " field " ]))) . " ]']; if ( $first > f.selectedIndex) f.selectedIndex = $first ; \" onkeyup='keyupChange.call(this);' " : " " );
2010-09-09 11:03:10 +00:00
$attrs .= $onchange ;
2014-01-08 17:07:58 +00:00
$has_function = ( in_array ( $function , $functions ) || isset ( $functions [ $function ]));
2013-07-19 17:35:31 +00:00
echo ( count ( $functions ) > 1
2014-01-08 17:07:58 +00:00
? " <select name='function[ $name ]' onchange='functionChange(this);' " . on_help ( " getTarget(event).value.replace(/^SQL \$ /, '') " , 1 ) . " > " . optionlist ( $functions , $function === null || $has_function ? $function : " " ) . " </select> "
2013-07-19 17:35:31 +00:00
: nbsp ( reset ( $functions ))
) . '<td>' ;
2009-11-09 14:47:47 +00:00
$input = $adminer -> editInput ( $_GET [ " edit " ], $field , $attrs , $value ); // usage in call is without a table
2010-01-09 23:33:41 +00:00
if ( $input != " " ) {
2009-07-28 10:09:05 +00:00
echo $input ;
2009-07-23 14:42:38 +00:00
} elseif ( $field [ " type " ] == " set " ) { //! 64 bits
2009-08-19 17:10:06 +00:00
preg_match_all ( " ~'((?:[^']|'')*)'~ " , $field [ " length " ], $matches );
2009-07-03 09:16:50 +00:00
foreach ( $matches [ 1 ] as $i => $val ) {
$val = stripcslashes ( str_replace ( " '' " , " ' " , $val ));
$checked = ( is_int ( $value ) ? ( $value >> $i ) & 1 : in_array ( $val , explode ( " , " , $value ), true ));
2011-02-10 10:05:40 +00:00
echo " <label><input type='checkbox' name='fields[ $name ][ $i ]' value=' " . ( 1 << $i ) . " ' " . ( $checked ? ' checked' : '' ) . " $onchange > " . h ( $adminer -> editVal ( $val , $field )) . '</label>' ;
2009-07-03 09:16:50 +00:00
}
2013-07-24 23:26:41 +00:00
} elseif ( preg_match ( '~blob|bytea|raw|file~' , $field [ " type " ]) && ini_bool ( " file_uploads " )) {
2009-11-09 14:47:47 +00:00
echo " <input type='file' name='fields- $name ' $onchange > " ;
2013-07-24 23:26:41 +00:00
} elseif (( $text = preg_match ( '~text|lob~' , $field [ " type " ])) || preg_match ( " ~ \n ~ " , $value )) {
2012-08-12 03:21:03 +00:00
if ( $text && $jush != " sqlite " ) {
$attrs .= " cols='50' rows='12' " ;
} else {
$rows = min ( 12 , substr_count ( $value , " \n " ) + 1 );
$attrs .= " cols='30' rows=' $rows ' " . ( $rows == 1 ? " style='height: 1.2em;' " : " " ); // 1.2em - line-height
}
echo " <textarea $attrs > " . h ( $value ) . '</textarea>' ;
2013-08-09 22:49:34 +00:00
} elseif ( $function == " json " ) {
echo " <textarea $attrs cols='50' rows='12' class='jush-js'> " . h ( $value ) . '</textarea>' ;
2009-07-03 09:16:50 +00:00
} else {
// int(3) is only a display hint
2013-07-24 23:26:41 +00:00
$maxlength = ( ! preg_match ( '~int~' , $field [ " type " ]) && preg_match ( '~^(\\d+)(,(\\d+))?$~' , $field [ " length " ], $match ) ? (( preg_match ( " ~binary~ " , $field [ " type " ]) ? 2 : 1 ) * $match [ 1 ] + ( $match [ 3 ] ? 1 : 0 ) + ( $match [ 2 ] && ! $field [ " unsigned " ] ? 1 : 0 )) : ( $types [ $field [ " type " ]] ? $types [ $field [ " type " ]] + ( $field [ " unsigned " ] ? 0 : 1 ) : 0 ));
if ( $jush == 'sql' && $connection -> server_info >= 5.6 && preg_match ( '~time~' , $field [ " type " ])) {
2013-02-20 00:57:04 +00:00
$maxlength += 7 ; // microtime
}
2012-12-05 21:11:36 +00:00
// type='date' and type='time' display localized value which may be confusing, type='datetime' uses 'T' as date and time separator
2014-01-08 17:07:58 +00:00
echo " <input "
. (( ! $has_function || $function === " " ) && preg_match ( '~(?<!o)int~' , $field [ " type " ]) ? " type='number' " : " " )
. " value=' " . h ( $value ) . " ' " . ( $maxlength ? " maxlength=' $maxlength ' " : " " )
. ( preg_match ( '~char|binary~' , $field [ " type " ]) && $maxlength > 20 ? " size='40' " : " " )
. " $attrs > "
;
2009-07-03 09:16:50 +00:00
}
}
}
2009-08-31 10:11:52 +00:00
/** Process edit input field
* @ param one field from fields ()
2013-08-09 22:49:34 +00:00
* @ return string or false to leave the original value
2009-08-31 10:11:52 +00:00
*/
2009-07-27 16:32:56 +00:00
function process_input ( $field ) {
2010-10-13 16:04:40 +00:00
global $adminer ;
2009-07-27 16:32:56 +00:00
$idf = bracket_escape ( $field [ " field " ]);
2009-07-03 09:16:50 +00:00
$function = $_POST [ " function " ][ $idf ];
$value = $_POST [ " fields " ][ $idf ];
2010-04-21 12:01:32 +00:00
if ( $field [ " type " ] == " enum " ) {
if ( $value == - 1 ) {
return false ;
}
if ( $value == " " ) {
return " NULL " ;
}
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return + $value ;
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}
if ( $field [ " auto_increment " ] && $value == " " ) {
return null ;
}
if ( $function == " orig " ) {
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return ( $field [ " on_update " ] == " CURRENT_TIMESTAMP " ? idf_escape ( $field [ " field " ]) : false );
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}
if ( $function == " NULL " ) {
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return " NULL " ;
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}
if ( $field [ " type " ] == " set " ) {
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return array_sum (( array ) $value );
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}
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if ( $function == " json " ) {
$function = " " ;
$value = json_decode ( $value , true );
if ( ! is_array ( $value )) {
return false ; //! report errors
}
return $value ;
}
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if ( preg_match ( '~blob|bytea|raw|file~' , $field [ " type " ]) && ini_bool ( " file_uploads " )) {
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$file = get_file ( " fields- $idf " );
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if ( ! is_string ( $file )) {
return false ; //! report errors
}
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return q ( $file );
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}
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return $adminer -> processInput ( $field , $value , $function );
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}
2014-01-11 23:44:03 +00:00
/** Compute fields () from $_POST edit data
* @ return array
*/
function fields_from_edit () {
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global $driver ;
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$return = array ();
foreach (( array ) $_POST [ " field_keys " ] as $key => $val ) {
if ( $val != " " ) {
$val = bracket_escape ( $val );
$_POST [ " function " ][ $val ] = $_POST [ " field_funs " ][ $key ];
$_POST [ " fields " ][ $val ] = $_POST [ " field_vals " ][ $key ];
}
}
foreach (( array ) $_POST [ " fields " ] as $key => $val ) {
$name = bracket_escape ( $key , 1 ); // 1 - back
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$return [ $name ] = array (
" field " => $name ,
" privileges " => array ( " insert " => 1 , " update " => 1 ),
" null " => 1 ,
" auto_increment " => ( $key == $driver -> primary ),
);
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}
return $return ;
}
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/** Print results of search in all tables
* @ uses $_GET [ " where " ][ 0 ]
* @ uses $_POST [ " tables " ]
* @ return null
*/
function search_tables () {
global $adminer , $connection ;
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$_GET [ " where " ][ 0 ][ " op " ] = " LIKE %% " ;
$_GET [ " where " ][ 0 ][ " val " ] = $_POST [ " query " ];
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$found = false ;
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foreach ( table_status ( '' , true ) as $table => $table_status ) {
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$name = $adminer -> tableName ( $table_status );
if ( isset ( $table_status [ " Engine " ]) && $name != " " && ( ! $_POST [ " tables " ] || in_array ( $table , $_POST [ " tables " ]))) {
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$result = $connection -> query ( " SELECT " . limit ( " 1 FROM " . table ( $table ), " WHERE " . implode ( " AND " , $adminer -> selectSearchProcess ( fields ( $table ), array ())), 1 ));
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if ( ! $result || $result -> fetch_row ()) {
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if ( ! $found ) {
echo " <ul> \n " ;
$found = true ;
}
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echo " <li> " . ( $result
? " <a href=' " . h ( ME . " select= " . urlencode ( $table ) . " &where[0][op]= " . urlencode ( $_GET [ " where " ][ 0 ][ " op " ]) . " &where[0][val]= " . urlencode ( $_GET [ " where " ][ 0 ][ " val " ])) . " '> $name </a> \n "
: " $name : <span class='error'> " . error () . " </span> \n " );
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}
}
}
echo ( $found ? " </ul> " : " <p class='message'> " . lang ( 'No tables.' )) . " \n " ;
}
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/** Send headers for export
* @ param string
* @ param bool
* @ return string extension
*/
function dump_headers ( $identifier , $multi_table = false ) {
global $adminer ;
$return = $adminer -> dumpHeaders ( $identifier , $multi_table );
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$output = $_POST [ " output " ];
if ( $output != " text " ) {
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header ( " Content-Disposition: attachment; filename= " . $adminer -> dumpFilename ( $identifier ) . " . $return " . ( $output != " file " && ! preg_match ( '~[^0-9a-z]~' , $output ) ? " . $output " : " " ));
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}
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session_write_close ();
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ob_flush ();
flush ();
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return $return ;
}
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/** Print CSV row
* @ param array
* @ return null
*/
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function dump_csv ( $row ) {
foreach ( $row as $key => $val ) {
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if ( preg_match ( " ~[ \" \n ,; \t ]~ " , $val ) || $val === " " ) {
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$row [ $key ] = '"' . str_replace ( '"' , '""' , $val ) . '"' ;
}
}
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echo implode (( $_POST [ " format " ] == " csv " ? " , " : ( $_POST [ " format " ] == " tsv " ? " \t " : " ; " )), $row ) . " \r \n " ;
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}
2009-07-11 19:45:57 +00:00
2009-08-31 10:11:52 +00:00
/** Apply SQL function
* @ param string
* @ param string escaped column identifier
* @ return string
*/
2009-08-18 09:19:54 +00:00
function apply_sql_function ( $function , $column ) {
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return ( $function ? ( $function == " unixepoch " ? " DATETIME( $column , ' $function ') " : ( $function == " count distinct " ? " COUNT(DISTINCT " : strtoupper ( " $function ( " )) . " $column ) " ) : $column );
2009-08-18 09:19:54 +00:00
}
2010-05-06 13:45:34 +00:00
/** Read password from file adminer . key in temporary directory or create one
2013-06-11 09:02:17 +00:00
* @ param bool
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* @ return string or false if the file can not be created
*/
2013-06-11 09:02:17 +00:00
function password_file ( $create ) {
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$dir = ini_get ( " upload_tmp_dir " ); // session_save_path() may contain other storage path
if ( ! $dir ) {
if ( function_exists ( 'sys_get_temp_dir' )) {
$dir = sys_get_temp_dir ();
} else {
$filename = @ tempnam ( " " , " " ); // @ - temp directory can be disabled by open_basedir
if ( ! $filename ) {
return false ;
}
$dir = dirname ( $filename );
unlink ( $filename );
}
}
$filename = " $dir /adminer.key " ;
$return = @ file_get_contents ( $filename ); // @ - can not exist
2013-06-11 09:02:17 +00:00
if ( $return || ! $create ) {
2010-05-06 13:45:34 +00:00
return $return ;
}
$fp = @ fopen ( $filename , " w " ); // @ - can have insufficient rights //! is not atomic
if ( $fp ) {
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$return = rand_string ();
2010-05-06 13:45:34 +00:00
fwrite ( $fp , $return );
fclose ( $fp );
}
return $return ;
}
2013-08-11 16:26:18 +00:00
/** Get a random string
* @ return string 32 hexadecimal characters
*/
function rand_string () {
return md5 ( uniqid ( mt_rand (), true ));
}
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/** Format value to use in select
* @ param string
* @ param string
* @ param array
* @ param int
* @ return string HTML
*/
function select_value ( $val , $link , $field , $text_length ) {
global $adminer , $HTTPS ;
if ( is_array ( $val )) {
$return = " " ;
foreach ( $val as $k => $v ) {
$return .= " <tr> "
. ( $val != array_values ( $val ) ? " <th> " . h ( $k ) : " " )
. " <td> " . select_value ( $v , $link , $field , $text_length )
;
}
return " <table cellspacing='0'> $return </table> " ;
}
if ( ! $link ) {
$link = $adminer -> selectLink ( $val , $field );
}
if ( $link === null ) {
if ( is_mail ( $val )) {
$link = " mailto: $val " ;
}
if ( $protocol = is_url ( $val )) {
$link = ( $protocol == " http " && $HTTPS
? $val // HTTP links from HTTPS pages don't receive Referer automatically
: " $protocol ://www.adminer.org/redirect/?url= " . urlencode ( $val ) // intermediate page to hide Referer, may be changed to rel="noreferrer" in HTML5
);
}
}
2014-01-11 05:32:07 +00:00
$return = $adminer -> editVal ( $val , $field );
if ( $return !== null ) {
if ( $return === " " ) { // === - may be int
$return = " " ;
} elseif ( $text_length != " " && is_shortable ( $field ) && is_utf8 ( $return )) {
$return = shorten_utf8 ( $return , max ( 0 , + $text_length )); // usage of LEFT() would reduce traffic but complicate query - expected average speedup: .001 s VS .01 s on local network
2013-08-06 21:55:56 +00:00
} else {
2014-01-11 05:32:07 +00:00
$return = h ( $return );
2013-08-06 21:55:56 +00:00
}
}
2014-01-11 05:32:07 +00:00
return $adminer -> selectVal ( $return , $link , $field , $val );
2013-08-06 21:55:56 +00:00
}
2009-08-31 10:11:52 +00:00
/** Check whether the string is e - mail address
* @ param string
* @ return bool
*/
2010-10-16 13:47:51 +00:00
function is_mail ( $email ) {
2009-07-11 19:45:57 +00:00
$atom = '[-a-z0-9!#$%&\'*+/=?^_`{|}~]' ; // characters of local-name
$domain = '[a-z0-9]([-a-z0-9]{0,61}[a-z0-9])' ; // one domain component
2010-04-21 22:21:47 +00:00
$pattern = " $atom +( \\ . $atom +)*@( $domain ? \\ .)+ $domain " ;
2013-08-06 21:55:56 +00:00
return is_string ( $email ) && preg_match ( " (^ $pattern (, \\ s* $pattern )* \$ )i " , $email );
2009-07-11 19:45:57 +00:00
}
2009-09-11 19:26:27 +00:00
2009-10-02 14:25:18 +00:00
/** Check whether the string is URL address
* @ param string
2010-05-25 09:39:13 +00:00
* @ return string " http " , " https " or " "
2009-10-02 14:25:18 +00:00
*/
function is_url ( $string ) {
2010-05-25 09:39:13 +00:00
$domain = '[a-z0-9]([-a-z0-9]{0,61}[a-z0-9])' ; // one domain component //! IDN
2010-10-22 22:02:24 +00:00
return ( preg_match ( " ~^(https?)://( $domain ? \\ .)+ $domain (: \\ d+)?(/.*)?( \\ ?.*)?(#.*)? \$ ~i " , $string , $match ) ? strtolower ( $match [ 1 ]) : " " ); //! restrict path, query and fragment characters
2009-10-02 14:25:18 +00:00
}
2012-08-20 00:12:19 +00:00
2012-09-22 14:34:51 +00:00
/** Check if field should be shortened
* @ param array
* @ return bool
*/
function is_shortable ( $field ) {
2013-07-24 23:26:41 +00:00
return preg_match ( '~char|text|lob|geometry|point|linestring|polygon|string~' , $field [ " type " ]);
2012-09-22 14:34:51 +00:00
}
2013-07-04 01:40:55 +00:00
/** Get query to compute number of found rows
* @ param string
* @ param array
* @ param bool
* @ param array
* @ return string
*/
function count_rows ( $table , $where , $is_group , $group ) {
global $jush ;
$query = " FROM " . table ( $table ) . ( $where ? " WHERE " . implode ( " AND " , $where ) : " " );
return ( $is_group && ( $jush == " sql " || count ( $group ) == 1 )
? " SELECT COUNT(DISTINCT " . implode ( " , " , $group ) . " ) $query "
: " SELECT COUNT(*) " . ( $is_group ? " FROM (SELECT 1 $query $group_by ) x " : $query )
);
}
2012-08-20 04:55:00 +00:00
/** Run query which can be killed by AJAX call after timing out
* @ param string
2013-07-04 00:28:53 +00:00
* @ return array of strings
2012-08-20 00:12:19 +00:00
*/
2012-08-20 04:55:00 +00:00
function slow_query ( $query ) {
2012-08-20 00:12:19 +00:00
global $adminer , $token ;
2012-08-20 06:25:23 +00:00
$db = $adminer -> database ();
2013-07-06 17:31:21 +00:00
$timeout = $adminer -> queryTimeout ();
2012-08-20 06:25:23 +00:00
if ( support ( " kill " ) && is_object ( $connection2 = connect ()) && ( $db == " " || $connection2 -> select_db ( $db ))) {
2012-08-20 04:55:00 +00:00
$kill = $connection2 -> result ( " SELECT CONNECTION_ID() " ); // MySQL and MySQLi can use thread_id but it's not in PDO_MySQL
?>
2012-08-20 00:12:19 +00:00
< script type = " text/javascript " >
var timeout = setTimeout ( function () {
ajax ( '<?php echo js_escape(ME); ?>script=kill' , function () {
}, 'token=<?php echo $token; ?>&kill=<?php echo $kill; ?>' );
2013-07-06 17:31:21 +00:00
}, < ? php echo 1000 * $timeout ; ?> );
2012-08-20 00:12:19 +00:00
</ script >
< ? php
2012-08-20 04:55:00 +00:00
} else {
$connection2 = null ;
2012-08-20 02:38:53 +00:00
}
2012-08-20 00:12:19 +00:00
ob_flush ();
flush ();
2013-07-06 17:31:21 +00:00
$return = @ get_key_vals ( $query , $connection2 , $timeout ); // @ - may be killed
2012-08-20 04:55:00 +00:00
if ( $connection2 ) {
2012-08-20 02:38:53 +00:00
echo " <script type='text/javascript'>clearTimeout(timeout);</script> \n " ;
ob_flush ();
flush ();
2012-08-20 00:12:19 +00:00
}
2012-08-20 04:55:00 +00:00
return array_keys ( $return );
2012-08-20 00:12:19 +00:00
}
2012-09-07 05:20:44 +00:00
2013-10-25 02:10:50 +00:00
/** Generate BREACH resistant CSRF token
* @ return string
*/
function get_token () {
$rand = rand ( 1 , 1e6 );
return ( $rand ^ $_SESSION [ " token " ]) . " : $rand " ;
}
/** Verify if supplied CSRF token is valid
* @ return bool
*/
function verify_token () {
list ( $token , $rand ) = explode ( " : " , $_POST [ " token " ]);
return ( $rand ^ $_SESSION [ " token " ]) == $token ;
}
2012-09-07 05:20:44 +00:00
// used in compiled version
function lzw_decompress ( $binary ) {
// convert binary string to codes
$dictionary_count = 256 ;
$bits = 8 ; // ceil(log($dictionary_count, 2))
$codes = array ();
$rest = 0 ;
$rest_length = 0 ;
for ( $i = 0 ; $i < strlen ( $binary ); $i ++ ) {
$rest = ( $rest << 8 ) + ord ( $binary [ $i ]);
$rest_length += 8 ;
if ( $rest_length >= $bits ) {
$rest_length -= $bits ;
$codes [] = $rest >> $rest_length ;
$rest &= ( 1 << $rest_length ) - 1 ;
$dictionary_count ++ ;
if ( $dictionary_count >> $bits ) {
$bits ++ ;
}
}
}
// decompression
$dictionary = range ( " \0 " , " \xFF " );
$return = " " ;
foreach ( $codes as $i => $code ) {
$element = $dictionary [ $code ];
if ( ! isset ( $element )) {
$element = $word . $word [ 0 ];
}
$return .= $element ;
if ( $i ) {
$dictionary [] = $word . $element [ 0 ];
}
$word = $element ;
}
return $return ;
}
2013-12-19 20:55:53 +00:00
/** Return events to display help on mouse over
* @ param string JS expression
* @ param bool JS expression
* @ return string
*/
function on_help ( $command , $side = 0 ) {
return " onmouseover='helpMouseover(this, event, " . h ( $command ) . " , $side );' onmouseout='helpMouseout(this, event);' " ;
}