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<?php
include_once("library.php");
include_once('reports.php');
include_once( './database.php' );
function logIt ( $message ) {
//return;
$LOGFILE = '/home/rodolico/www/web/computer_asset_manager_v1/logs/debug.log';
$fp = fopen( $LOGFILE , 'a');
fwrite($fp, "$message\n" );
fclose($fp);
}
/*
* function designed to handle input from a form. If the input is
* unset, will retrun the $default value.
* Otherwise, will filter the value based on $filter
* Some common filters are:
* FILTER_SANITIZE_SPECIAL_CHARS - clean up text so no HTML
* FILTER_SANITIZE_EMAIL - email addresses
* FILTER_SANITIZE_NUMBER_FLOAT - floating point numbers
* FILTER_SANITIZE_NUMBER_INT - integers
* FILTER_SANITIZE_URL - A URL
* http://php.net/manual/en/filter.filters.sanitize.php
*/
function cleanInput ( $value, $default = '', $filter = FILTER_DEFAULT ) {
// unset or empty values just get the default
if ( ! isset( $value ) || strlen( trim( $value ) ) == 0 ) return $default;
return filter_var( trim( $value ), $filter );
}
/*
* function will attempt to make a constant ($value) safe for SQL depending on the type.
*
* if $value is empty, $default is returned, as will happen if any of the
* conversions (date, datetime, etc...) fail.
*
* First, it will pass it through get_magic_quotes_gpc,
* then will run through mysql_real_escape_string
*
* For strings, will encapsulate in quotes
* Dates will attempt a conversion, then change to YYYY-MM-DD and encapsulate in quotes
* if default is the constant now(), will pass that through to MySQL
* DateTime will perform the same, but change to YYYY-MM-DD HH:MM:SS
* Integer and Floats are passed through builtins intval and floatval
* Boolean only checks the first character, a '0', 'f' and 'n' denoting false
* all else denoting true. The result is converted based on the variable
* $falsetrue, with the first char denoting false and the second denoting true
*/
function makeSafeSQLConstant ( $value, $type='S', $default='null', $falsetrue='10' ) {
// return $default on undefined or empty values
if ( ! isset( $value ) ) return $default;
if (strlen($value) == 0) return $default;
// print "Processing $value as $type with default $default<br>\n";
switch ( strtolower( $type ) ) {
case 'string' :
case 's' :
if ( get_magic_quotes_gpc() )
$value = stripslashes($value);
$value = mysql_real_escape_string( $value );
$value = strlen( $value ) > 0 ? "'$value'" : $default;
break;
case 'date' :
case 'd' :
if ( $value != 'null' && $value != 'now()' ) {
$result = strtotime( $value );
$value = ( $result === false ) ? $default : "'" . Date( 'Y-m-d', $result) . "'";
}
break;
case 'datetime':
case 'timestamp':
case 'dt':
if ( $value != 'null' && $value != 'now()' ) {
$result = strtotime( $value );
$value = ( $result === false ) ? $default : "'" . Date( 'Y-m-d H:i:s', $result) . "'";
}
break;
case 'integer':
case 'i' :
$value = intval( $value );
break;
case 'float':
case 'f' :
$value = floatval( $value );
break;
case 'bool':
case 'boolean':
case 'b' : // note, because of the way strpos works, you can not
// simply set $value based on the output; you MUST do
// as below; specifically check for false, then set the result
$value = strpos( '0fn', strtolower(substr( $value, 0, 1 )) ) === false ? 0 : 1;
$value = substr( $falsetrue, $value, 0, 1 );
break;
} // switch
return $value;
}
function lPad( $string, $count, $padChar = '0' ) {
while ( strlen( $string) < $count ) {
$string = '0' . $string;
}
return $string;
}
function makeFileName ( $name, $device_id, $client_id, $site_id ) {
// we are getting an index. There is a small chance we could end up with duplicates, but since the file
// name will not consist solely of the index, it should not cause a collision.
$thisIndex = getOneDBValue( "select theValue from _system where group_name= 'Files' and key_name = 'last index'" );
$thisIndex++;
doSQL( "update _system set theValue = '$thisIndex' where group_name= 'Files' and key_name = 'last index'" );
$thisIndex = lPad( $thisIndex, 6 );
// start building the file name
$nameOnDisk = $thisIndex . '-';
if ( $device_id ) {
$nameOnDisk .= 'd-';
$nameOnDisk .= getOneDBValue( "select name from device where device_id = $device_id" );
} elseif ( $site_id ) {
$nameOnDisk .= 's-';
$nameOnDisk .= getOneDBValue( "select name from site where site_id = $site_id" );
} elseif ( $client_id ) {
$nameOnDisk .= 'c-';
$nameOnDisk .= getOneDBValue( "select name from client where client_id = $client_id" );
} else {
return array( 'valid' => false, 'message' => 'Error: not able to find client/site/device info' );
}
logIt( "File name set to $nameOnDisk before processing" );
// add the extension
$nameOnDisk .= '.' . pathinfo($name, PATHINFO_EXTENSION);
logIt( "File name set to $nameOnDisk after adding extension" );
// and calculate the relative path to be added to the Files root path value
$nameOnDisk = getRelativePath( $nameOnDisk ) . $nameOnDisk;
logIt( "File name set to $nameOnDisk after adding rel path" );
return array( 'valid' => true, 'filename' => $nameOnDisk );
} // function saveFile
/*
* take the first digits of a file name (which is the index) and turn
* them into a path, by breaking them into two character directories.
* Thus, 123456-someFileName.something becomes
* 12/34/123456-someFileName.something
* however, this only returns the path part, so it will return
* 12/34/
*/
function getRelativePath ( $filename ) {
// the first part of the file name is the index, which is used to
// calculate the path, so we'll throw away everything else.
$filename = explode( '-', $filename )[0];
while ( strlen( $filename ) > 2 ) {
$path .= substr( $filename, 0, 2 ) . '/';
$filename = substr( $filename, 2 );
}
return $path;
}
/*
* prepends two directory entries stored in _system table to
* $filename
*/
function getAbsolutePath ( $filename ) {
$path = $_SESSION['file system root']
. '/' . getOneDBValue( "select theValue from _system where group_name = 'Files' and key_name = 'root path'" )
. '/' . $filename;
return $path;
}
/*
* returns the URL path to a file
*/
function getURLPath ( $filename ) {
$path = $_SESSION['html root']
. '/' . getOneDBValue( "select theValue from _system where group_name = 'Files' and key_name = 'root path'" )
. '/' . $filename;
return $path;
}
function makePath ( $filename ) {
$path = pathinfo( $filename, PATHINFO_DIRNAME );
return is_dir( $path ) ? true : mkdir( $path, 0777, true );
}
/*
* Tries to find $value as a mime type
* if $value is non-zero numeric, looks it up in the table as mime_type_id
* if a string, checks for mime_type
* if still not found, looks for extension
* returns index into file_mime_type, or 0 if not found
*/
function check_mime_type ( $value ) {
if ( is_string( $value ) ) {
$value = makeSafeSQLConstant( $value );
// check if they passed in a mime type
$id = getOneDBValue( "select file_mime_type_id from file_mime_type where mime_type = $value" );
if ( $id ) return $id;
// well, no, so check if they passed in an extension
return getOneDBValue( "select file_mime_type_id from file_mime_type where extension = $value" );
}
return null;
}
function addFile ( $fields ) {
logIt( "entering addFile with fields set to\n" . print_r( $fields, true ) );
// file_id is not set in any query, so get rid of it
$file_id = $fields['file_id'];
unset( $fields['file_id'] );
// based on device, site or client, two fields are created
if ( $fields['device_id'] ) {
$fields['owner_type'] = 'd';
$fields['owner_id'] = $fields['device_id'];
} elseif ( $fields['site_id'] ) {
$fields['owner_type'] = 's';
$fields['owner_id'] = $fields['site_id'];
} elseif ( $fields['client_id'] ) {
$fields['owner_type'] = 'c';
$fields['owner_id'] = $fields['client_id'];
}
// these are not actually part of the database, so trash them
unset( $fields['client_id'] );
unset( $fields['site_id'] );
unset( $fields['device_id'] );
if ( ! isset( $fields['mime_type'] ) ) {
$extension = pathinfo( $fields['name_on_disk'], PATHINFO_EXTENSION);
$fields['mime_type'] = getOneDBValue( "select mime_type from file_mime_type where extension = '$extension'" );
} // if we need to find the mime_type
foreach ( $fields as $key => $value ) {
if ( strpos( $key, 'date' ) ) { // field name has date in it
$fields[$key] = makeSafeSQLConstant( $value, 'd' );
} else {
$fields[$key] = makeSafeSQLConstant( $value );
}
}
$fields['file_mime_type_id'] = getOneDBValue( "select file_mime_type_id from file_mime_type where mime_type = $fields[mime_type]" );
unset( $fields['mime_type'] );
if ( ! $fields['file_mime_type_id'] ) $fields['file_mime_type_id'] = 'null';
if ( $file_id ) { // we are updating an existing record
$query = array();
foreach ( $fields as $key => $value ) {
$query[] = "$key = $value";
}
$query = 'update file set ' . implode( ',', $query ) . " where file_id = $file_id";
} else { // we are adding a new record
$query = 'insert into file (' . implode( ',', array_keys( $fields ) ) . ') values (' . implode( ',', array_values( $fields ) ) . ')';
}
logIt( $query );
$result = queryDatabaseExtended( $query );
if ( $result['insert_id'] )
return array( 'valid' => true, 'message' => "New Record $result[insert_id]" );
else
return array( 'valid' => false, 'message' => "Database Error" );
}
function return_bytes($val) {
$val = trim($val);
$last = strtolower($val[strlen($val)-1]);
switch($last)
{
case 'g':
$val *= 1024;
case 'm':
$val *= 1024;
case 'k':
$val *= 1024;
}
return $val;
} // return_bytes
function prettyPrintBytes( $value ) {
$sizes = array( '', 'kilo', 'mega', 'giga', 'tera' );
while ( $value > 1024 ) {
$value /= 1024;
$index++;
}
return intval( $value ) . ' ' . $sizes[$index] . 'bytes';
}
function maxUploadFileSize () {
//select maximum upload size
$max_upload = return_bytes(ini_get('upload_max_filesize'));
//select post limit
$max_post = return_bytes(ini_get('post_max_size'));
//select memory limit
$memory_limit = return_bytes(ini_get('memory_limit'));
// return the smallest of them, this defines the real limit
return prettyPrintBytes( min($max_upload, $max_post, $memory_limit) );
} // maxUploadFileSize
function getFileUploadError( $error ) {
$message = '';
switch ( $error ) {
case 0 : $message = 'There is no error, the file uploaded with success';
break;
case 1 : $message = 'The uploaded file exceeds the upload_max_filesize directive in php.ini';
break;
case 2 : $message = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form';
break;
case 3 : $message = 'The uploaded file was only partially uploaded';
break;
case 4 : $message = 'No file was uploaded';
break;
case 6 : $message = 'Missing a temporary folder';
break;
case 7 : $message = 'Failed to write file to disk.';
break;
case 8 : $message = 'A PHP extension stopped the file upload.';
}
return array( 'valid' => $error == 0, 'message' => $message );
} // getFileUploadError
function uploadFile ( $source, $nameOnDisk ) {
$saveTo = getAbsolutePath( $nameOnDisk );
if ( makePath( $saveTo ) ) {
logIt( "Path Made - $saveTo" );
logIt( "moving $source to $saveTo" );
$result['valid'] = move_uploaded_file( $source, $saveTo );
} else {
$result = array( 'valid'=>false, 'message' => print_r(error_get_last(), true) );
} // if move_uploaded_file .. else
return $result;
} // uploadFile
?>