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incFunctions.php
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incFunctions.php
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<?php
########################################################################
/*
~~~~~~ LIST OF FUNCTIONS ~~~~~~
set_headers() -- sets HTTP headers (encoding, same-origin frame policy, .. etc)
getTableList() -- returns an associative array [tableName => [tableCaption, tableDescription, tableIcon], ...] of tables accessible by current user
getThumbnailSpecs($tableName, $fieldName, $view) -- returns an associative array specifying the width, height and identifier of the thumbnail file.
createThumbnail($img, $specs) -- $specs is an array as returned by getThumbnailSpecs(). Returns true on success, false on failure.
makeSafe($string)
formatUri($uri) -- convert \ to / and strip slashes from uri start/end
checkPermissionVal($pvn)
sql($statement, $o)
sqlValue($statement)
getLoggedAdmin()
logOutUser()
getPKFieldName($tn)
getCSVData($tn, $pkValue, $stripTag=true)
errorMsg($msg)
redirect($URL, $absolute=FALSE)
htmlRadioGroup($name, $arrValue, $arrCaption, $selectedValue, $selClass="", $class="", $separator="<br>")
htmlSelect($name, $arrValue, $arrCaption, $selectedValue, $class="", $selectedClass="")
htmlSQLSelect($name, $sql, $selectedValue, $class="", $selectedClass="")
isEmail($email) -- returns $email if valid or false otherwise.
notifyMemberApproval($memberID) -- send an email to member acknowledging his approval by admin, returns false if no mail is sent
setupMembership() -- check if membership tables exist or not. If not, create them.
thisOr($this_val, $or) -- return $this_val if it has a value, or $or if not.
getUploadedFile($FieldName, $MaxSize=0, $FileTypes='csv|txt', $NoRename=false, $dir='')
toBytes($val)
convertLegacyOptions($CSVList)
getValueGivenCaption($query, $caption)
time24($t) -- return time in 24h format
time12($t) -- return time in 12h format
application_url($page) -- return absolute URL of provided page
is_ajax() -- return true if this is an ajax request, false otherwise
is_allowed_username($username, $exception = false) -- returns username if valid and unique, or false otherwise (if exception is provided and same as username, no uniqueness check is performed)
csrf_token($validate) -- csrf-proof a form
get_plugins() -- scans for installed plugins and returns them in an array ('name', 'title', 'icon' or 'glyphicon', 'admin_path')
maintenance_mode($new_status = '') -- retrieves (and optionally sets) maintenance mode status
html_attr($str) -- prepare $str to be placed inside an HTML attribute
html_attr_tags_ok($str) -- same as html_attr, but allowing HTML tags
Notification() -- class for providing a standardized html notifications functionality
sendmail($mail) -- sends an email using PHPMailer as specified in the assoc array $mail( ['to', 'name', 'subject', 'message', 'debug'] ) and returns true on success or an error message on failure
safe_html($str, $noBr = false) -- sanitize HTML strings, and apply nl2br() to non-HTML ones (unless optional 2nd param is passed as true)
get_tables_info($skip_authentication = false) -- retrieves table properties as a 2D assoc array ['table_name' => ['prop1' => 'val', ..], ..]
getLoggedMemberID() -- returns memberID of logged member. If no login, returns anonymous memberID
getLoggedGroupID() -- returns groupID of logged member, or anonymous groupID
getMemberInfo() -- returns an array containing the currently signed-in member's info
get_group_id($user = '') -- returns groupID of given user, or current one if empty
prepare_sql_set($set_array, $glue = ', ') -- Prepares data for a SET or WHERE clause, to be used in an INSERT/UPDATE query
insert($tn, $set_array) -- Inserts a record specified by $set_array to the given table $tn
update($tn, $set_array, $where_array) -- Updates a record identified by $where_array to date specified by $set_array in the given table $tn
set_record_owner($tn, $pk, $user) -- Set/update the owner of given record
app_datetime_format($destination = 'php', $datetime = 'd') -- get date/time format string for use with one of these: 'php' (see date function), 'mysql', 'moment'. $datetime: 'd' = date, 't' = time, 'dt' = both
mysql_datetime($app_datetime) -- converts $app_datetime to mysql-formatted datetime, 'yyyy-mm-dd H:i:s', or empty string on error
app_datetime($mysql_datetime, $datetime = 'd') -- converts $mysql_datetime to app-formatted datetime (if 2nd param is 'dt'), or empty string on error
to_utf8($str) -- converts string from app-configured encoding to utf8
from_utf8($str) -- converts string from utf8 to app-configured encoding
membership_table_functions() -- returns a list of update_membership_* functions
configure_anonymous_group() -- sets up anonymous group and guest user if necessary
configure_admin_group() -- sets up admins group and super admin user if necessary
get_table_keys($tn) -- returns keys (indexes) of given table
get_table_fields($tn) -- returns fields spec for given table
update_membership_{tn}() -- sets up membership table tn and its indexes if necessary
test($subject, $test) -- perform a test and return results
invoke_method($object, $methodName, $param_array) -- invoke a private/protected method of a given object
invoke_static_method($class, $methodName, $param_array) -- invoke a private/protected method of a given class statically
get_parent_tables($tn) -- returns parents of given table: ['parent table' => [main lookup fields in child], ..]
backtick_keys_once($data) -- wraps keys of given array with backticks ` if not already wrapped. Useful for use with fieldnames passed to update() and insert()
calculated_fields() -- returns calculated fields config array: [table => [field => query, ..], ..]
update_calc_fields($table, $id, $formulas, $mi = false) -- updates record of given $id in given $table according to given $formulas on behalf of user specified in given info array (or current user if false)
latest_jquery() -- detects and returns the name of the latest jQuery file found in resources/jquery/js
existing_value($tn, $fn, $id, $cache = true) -- returns (cached) value of field $fn of record having $id in table $tn. Set $cache to false to bypass caching.
checkAppRequirements() -- if PHP doesn't meet app requirements, outputs error and exits
getRecord($table, $id) -- return the record having a PK of $id from $table as an associative array, falsy value on error/not found
guessMySQLDateTime($dt) -- if $dt is not already a mysql date/datetime, use mysql_datetime() to convert then return mysql date/datetime. Returns false if $dt invalid or couldn't be detected.
pkGivenLookupText($val, $tn, $lookupField, $falseIfNotFound) -- returns corresponding PK value for given $val which is the textual lookup value for given $lookupField in given $tn table. If $val has no corresponding PK value, $val is returned as-is, unless $falseIfNotFound is set to true, in which case false is returned.
userCanImport() -- returns true if user (or his group) can import CSV files (through the permission set in the group page in the admin area).
bgStyleToClass($html) -- replaces bg color 'style' attr with a class to prevent style loss on xss cleanup.
assocArrFilter($arr, $func) -- filters provided array using provided callback function. The callback receives 2 params ($key, $value) and should return a boolean.
array_trim($arr) -- deep trim; trim each element in the array and its sub arrays.
request_outside_admin_folder() -- returns true if currently executing script is outside admin folder, false otherwise.
breakpoint(__FILE__, __LINE__, $msg) -- if DEBUG_MODE enabled, logs a message to {app_dir}/breakpoint.csv, if $msg is array, it will be converted to str via json_encode
denyAccess($msg) -- Send a 403 Access Denied header, with an optional message then die
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
########################################################################
function set_headers() {
@header('Content-Type: text/html; charset=' . datalist_db_encoding);
@header('X-Frame-Options: SAMEORIGIN'); // prevent iframing by other sites to prevent clickjacking
}
########################################################################
function get_tables_info($skip_authentication = false) {
static $all_tables = [], $accessible_tables = [];
/* return cached results, if found */
if(($skip_authentication || getLoggedAdmin()) && count($all_tables)) return $all_tables;
if(!$skip_authentication && count($accessible_tables)) return $accessible_tables;
/* table groups */
$tg = [
'Leases',
'Assets/Setup'
];
$all_tables = [
/* ['table_name' => [table props assoc array] */
'applicants_and_tenants' => [
'Caption' => 'Applicants and tenants',
'Description' => 'List of applicants/tenants and their current status. Each tenant might have an application or a lease.',
'tableIcon' => 'resources/table_icons/account_balances.png',
'group' => $tg[0],
'homepageShowCount' => 1
],
'applications_leases' => [
'Caption' => 'Applications/Leases',
'Description' => 'This is the application form filled by an applicant to apply for leasing a unit. The application might be changed to a lease when approved.',
'tableIcon' => 'resources/table_icons/curriculum_vitae.png',
'group' => $tg[0],
'homepageShowCount' => 1
],
'residence_and_rental_history' => [
'Caption' => 'Residence and rental history',
'Description' => 'Records of the tenant residence and rental history.',
'tableIcon' => 'resources/table_icons/document_comment_above.png',
'group' => $tg[0],
'homepageShowCount' => 1
],
'employment_and_income_history' => [
'Caption' => 'Employment and income history',
'Description' => 'Records of the employment and income history of the tenant.',
'tableIcon' => 'resources/table_icons/cash_stack.png',
'group' => $tg[0],
'homepageShowCount' => 1
],
'references' => [
'Caption' => 'References',
'Description' => 'List of references for each tenant.',
'tableIcon' => 'resources/table_icons/application_from_storage.png',
'group' => $tg[0],
'homepageShowCount' => 1
],
'rental_owners' => [
'Caption' => 'Landlords',
'Description' => 'Listing of landlords/owners of rental properties, and all the properties owned by each.',
'tableIcon' => 'resources/table_icons/administrator.png',
'group' => $tg[1],
'homepageShowCount' => 1
],
'properties' => [
'Caption' => 'Properties',
'Description' => 'Listing of all properties. Each property has an owner and consists of one or more rental units.',
'tableIcon' => 'resources/table_icons/application_home.png',
'group' => $tg[1],
'homepageShowCount' => 1
],
'property_photos' => [
'Caption' => 'Property photos',
'Description' => '',
'tableIcon' => 'resources/table_icons/camera_link.png',
'group' => $tg[1],
'homepageShowCount' => 0
],
'units' => [
'Caption' => 'Units',
'Description' => 'Listing of all units, its details and current status.',
'tableIcon' => 'resources/table_icons/change_password.png',
'group' => $tg[1],
'homepageShowCount' => 1
],
'unit_photos' => [
'Caption' => 'Unit photos',
'Description' => '',
'tableIcon' => 'resources/table_icons/camera_link.png',
'group' => $tg[1],
'homepageShowCount' => 1
],
];
if($skip_authentication || getLoggedAdmin()) return $all_tables;
foreach($all_tables as $tn => $ti) {
$arrPerm = getTablePermissions($tn);
if(!empty($arrPerm['access'])) $accessible_tables[$tn] = $ti;
}
return $accessible_tables;
}
#########################################################
function getTableList($skip_authentication = false) {
$arrAccessTables = [];
$arrTables = [
/* 'table_name' => ['table caption', 'homepage description', 'icon', 'table group name'] */
'applicants_and_tenants' => ['Applicants and tenants', 'List of applicants/tenants and their current status. Each tenant might have an application or a lease.', 'resources/table_icons/account_balances.png', 'Leases'],
'applications_leases' => ['Applications/Leases', 'This is the application form filled by an applicant to apply for leasing a unit. The application might be changed to a lease when approved.', 'resources/table_icons/curriculum_vitae.png', 'Leases'],
'residence_and_rental_history' => ['Residence and rental history', 'Records of the tenant residence and rental history.', 'resources/table_icons/document_comment_above.png', 'Leases'],
'employment_and_income_history' => ['Employment and income history', 'Records of the employment and income history of the tenant.', 'resources/table_icons/cash_stack.png', 'Leases'],
'references' => ['References', 'List of references for each tenant.', 'resources/table_icons/application_from_storage.png', 'Leases'],
'rental_owners' => ['Landlords', 'Listing of landlords/owners of rental properties, and all the properties owned by each.', 'resources/table_icons/administrator.png', 'Assets/Setup'],
'properties' => ['Properties', 'Listing of all properties. Each property has an owner and consists of one or more rental units.', 'resources/table_icons/application_home.png', 'Assets/Setup'],
'property_photos' => ['Property photos', '', 'resources/table_icons/camera_link.png', 'Assets/Setup'],
'units' => ['Units', 'Listing of all units, its details and current status.', 'resources/table_icons/change_password.png', 'Assets/Setup'],
'unit_photos' => ['Unit photos', '', 'resources/table_icons/camera_link.png', 'Assets/Setup'],
];
if($skip_authentication || getLoggedAdmin()) return $arrTables;
foreach($arrTables as $tn => $tc) {
$arrPerm = getTablePermissions($tn);
if(!empty($arrPerm['access'])) $arrAccessTables[$tn] = $tc;
}
return $arrAccessTables;
}
########################################################################
function getThumbnailSpecs($tableName, $fieldName, $view) {
if($tableName=='properties' && $fieldName=='photo' && $view=='tv')
return ['width'=>300, 'height'=>250, 'identifier'=>'_tv'];
elseif($tableName=='properties' && $fieldName=='photo' && $view=='dv')
return ['width'=>800, 'height'=>600, 'identifier'=>'_dv'];
elseif($tableName=='property_photos' && $fieldName=='photo' && $view=='tv')
return ['width'=>100, 'height'=>100, 'identifier'=>'_tv'];
elseif($tableName=='property_photos' && $fieldName=='photo' && $view=='dv')
return ['width'=>250, 'height'=>250, 'identifier'=>'_dv'];
elseif($tableName=='units' && $fieldName=='photo' && $view=='tv')
return ['width'=>250, 'height'=>250, 'identifier'=>'_tv'];
elseif($tableName=='units' && $fieldName=='photo' && $view=='dv')
return ['width'=>250, 'height'=>250, 'identifier'=>'_dv'];
elseif($tableName=='unit_photos' && $fieldName=='photo' && $view=='tv')
return ['width'=>100, 'height'=>100, 'identifier'=>'_tv'];
elseif($tableName=='unit_photos' && $fieldName=='photo' && $view=='dv')
return ['width'=>250, 'height'=>250, 'identifier'=>'_dv'];
return FALSE;
}
########################################################################
function createThumbnail($img, $specs) {
$w = $specs['width'];
$h = $specs['height'];
$id = $specs['identifier'];
$path = dirname($img);
// image doesn't exist or inaccessible?
// known issue: for webp files, requires PHP 7.1+
if(!$size = @getimagesize($img)) return false;
// calculate thumbnail size to maintain aspect ratio
$ow = $size[0]; // original image width
$oh = $size[1]; // original image height
$twbh = $h / $oh * $ow; // calculated thumbnail width based on given height
$thbw = $w / $ow * $oh; // calculated thumbnail height based on given width
if($w && $h) {
if($twbh > $w) $h = $thbw;
if($thbw > $h) $w = $twbh;
} elseif($w) {
$h = $thbw;
} elseif($h) {
$w = $twbh;
} else {
return false;
}
// dir not writeable?
if(!is_writable($path)) return false;
// GD lib not loaded?
if(!function_exists('gd_info')) return false;
$gd = gd_info();
// GD lib older than 2.0?
preg_match('/\d/', $gd['GD Version'], $gdm);
if($gdm[0] < 2) return false;
// get file extension
preg_match('/\.[a-zA-Z]{3,4}$/U', $img, $matches);
$ext = strtolower($matches[0]);
// check if supplied image is supported and specify actions based on file type
if($ext == '.gif') {
if(!$gd['GIF Create Support']) return false;
$thumbFunc = 'imagegif';
} elseif($ext == '.png') {
if(!$gd['PNG Support']) return false;
$thumbFunc = 'imagepng';
} elseif($ext == '.webp') {
if(!$gd['WebP Support'] && !$gd['WEBP Support']) return false;
$thumbFunc = 'imagewebp';
} elseif($ext == '.jpg' || $ext == '.jpe' || $ext == '.jpeg') {
if(!$gd['JPG Support'] && !$gd['JPEG Support']) return false;
$thumbFunc = 'imagejpeg';
} else {
return false;
}
// determine thumbnail file name
$ext = $matches[0];
$thumb = substr($img, 0, -5) . str_replace($ext, $id . $ext, substr($img, -5));
// if the original image smaller than thumb, then just copy it to thumb
if($h > $oh && $w > $ow) {
return (@copy($img, $thumb) ? true : false);
}
// get image data
if(
$thumbFunc == 'imagewebp'
&& !$imgData = imagecreatefromwebp($img)
)
return false;
elseif(!$imgData = imagecreatefromstring(file_get_contents($img)))
return false;
// finally, create thumbnail
$thumbData = imagecreatetruecolor($w, $h);
//preserve transparency of png and gif images
$transIndex = null;
if($thumbFunc == 'imagepng' || $thumbFunc == 'imagewebp') {
if(($clr = @imagecolorallocate($thumbData, 0, 0, 0)) != -1) {
@imagecolortransparent($thumbData, $clr);
@imagealphablending($thumbData, false);
@imagesavealpha($thumbData, true);
}
} elseif($thumbFunc == 'imagegif') {
@imagealphablending($thumbData, false);
$transIndex = imagecolortransparent($imgData);
if($transIndex >= 0) {
$transClr = imagecolorsforindex($imgData, $transIndex);
$transIndex = imagecolorallocatealpha($thumbData, $transClr['red'], $transClr['green'], $transClr['blue'], 127);
imagefill($thumbData, 0, 0, $transIndex);
}
}
// resize original image into thumbnail
if(!imagecopyresampled($thumbData, $imgData, 0, 0 , 0, 0, $w, $h, $ow, $oh)) return false;
unset($imgData);
// gif transparency
if($thumbFunc == 'imagegif' && $transIndex >= 0) {
imagecolortransparent($thumbData, $transIndex);
for($y = 0; $y < $h; ++$y)
for($x = 0; $x < $w; ++$x)
if(((imagecolorat($thumbData, $x, $y) >> 24) & 0x7F) >= 100) imagesetpixel($thumbData, $x, $y, $transIndex);
imagetruecolortopalette($thumbData, true, 255);
imagesavealpha($thumbData, false);
}
if(!$thumbFunc($thumbData, $thumb)) return false;
unset($thumbData);
return true;
}
########################################################################
function formatUri($uri) {
$uri = str_replace('\\', '/', $uri);
return trim($uri, '/');
}
########################################################################
function makeSafe($string, $is_gpc = true) {
static $cached = []; /* str => escaped_str */
if(!strlen($string)) return '';
if(is_numeric($string)) return db_escape($string); // don't cache numbers to avoid cases like '3.5' being equivelant to '3' in array indexes
if(!db_link()) sql("SELECT 1+1", $eo);
// if this is a previously escaped string, return from cached
// checking both keys and values
if(isset($cached[$string])) return $cached[$string];
$key = array_search($string, $cached);
if($key !== false) return $string; // already an escaped string
$cached[$string] = db_escape($string);
return $cached[$string];
}
########################################################################
function checkPermissionVal($pvn) {
// fn to make sure the value in the given POST variable is 0, 1, 2 or 3
// if the value is invalid, it default to 0
$pvn = intval(Request::val($pvn));
if($pvn != 1 && $pvn != 2 && $pvn != 3) {
return 0;
} else {
return $pvn;
}
}
########################################################################
function dieErrorPage($error) {
global $Translation;
$header = (defined('ADMIN_AREA') ? __DIR__ . '/incHeader.php' : __DIR__ . '/../header.php');
$footer = (defined('ADMIN_AREA') ? __DIR__ . '/incFooter.php' : __DIR__ . '/../footer.php');
ob_start();
@include_once($header);
echo Notification::placeholder();
echo Notification::show([
'message' => $error,
'class' => 'danger',
'dismiss_seconds' => 7200
]);
@include_once($footer);
echo ob_get_clean();
exit;
}
########################################################################
function openDBConnection(&$o) {
static $connected = false, $db_link;
$dbServer = config('dbServer');
$dbUsername = config('dbUsername');
$dbPassword = config('dbPassword');
$dbDatabase = config('dbDatabase');
$dbPort = config('dbPort');
if($connected) return $db_link;
/****** Check that MySQL module is enabled ******/
if(!extension_loaded('mysql') && !extension_loaded('mysqli')) {
$o['error'] = 'PHP is not configured to connect to MySQL on this machine. Please see <a href="https://www.php.net/manual/en/ref.mysql.php">this page</a> for help on how to configure MySQL.';
if(!empty($o['silentErrors'])) return false;
dieErrorPage($o['error']);
}
/****** Connect to MySQL ******/
if(!($db_link = @db_connect($dbServer, $dbUsername, $dbPassword, NULL, $dbPort))) {
$o['error'] = db_error($db_link, true);
if(!empty($o['silentErrors'])) return false;
dieErrorPage($o['error']);
}
/****** Select DB ********/
if(!db_select_db($dbDatabase, $db_link)) {
$o['error'] = db_error($db_link);
if(!empty($o['silentErrors'])) return false;
dieErrorPage($o['error']);
}
$connected = true;
return $db_link;
}
########################################################################
function sql($statement, &$o) {
/*
Supported options that can be passed in $o options array (as array keys):
'silentErrors': If true, errors will be returned in $o['error'] rather than displaying them on screen and exiting.
'noSlowQueryLog': don't log slow query if true
'noErrorQueryLog': don't log error query if true
*/
global $Translation;
$db_link = openDBConnection($o);
/*
if openDBConnection() fails, it would abort execution unless 'silentErrors' is true,
in which case, we should return false from sql() without further action since
$o['error'] would be already set by openDBConnection()
*/
if(!$db_link) return false;
$t0 = microtime(true);
if(!$result = @db_query($statement, $db_link)) {
if(!stristr($statement, "show columns")) {
// retrieve error codes
$errorNum = db_errno($db_link);
$o['error'] = db_error($db_link);
if(empty($o['noErrorQueryLog']))
logErrorQuery($statement, $o['error']);
if(getLoggedAdmin())
$o['error'] = htmlspecialchars($o['error']) .
"<pre class=\"ltr\">{$Translation['query:']}\n" . htmlspecialchars($statement) . '</pre>' .
"<p><i class=\"text-right\">{$Translation['admin-only info']}</i></p>" .
"<p><a href=\"" . application_url('admin/pageRebuildFields.php') . "\">{$Translation['try rebuild fields']}</a></p>";
if(!empty($o['silentErrors'])) return false;
dieErrorPage($o['error']);
}
}
/* log slow queries that take more than 1 sec */
$t1 = microtime(true);
if(($t1 - $t0) > 1.0 && empty($o['noSlowQueryLog']))
logSlowQuery($statement, $t1 - $t0);
return $result;
}
########################################################################
function logSlowQuery($statement, $duration) {
if(!createQueryLogTable()) return;
$o = [
'silentErrors' => true,
'noSlowQueryLog' => true,
'noErrorQueryLog' => true
];
$statement = makeSafe(trim(preg_replace('/^\s+/m', ' ', $statement)));
$duration = floatval($duration);
$memberID = makeSafe(getLoggedMemberID());
$uri = makeSafe($_SERVER['REQUEST_URI']);
sql("INSERT INTO `appgini_query_log` SET
`statement`='$statement',
`duration`=$duration,
`memberID`='$memberID',
`uri`='$uri'
", $o);
}
########################################################################
function logErrorQuery($statement, $error) {
if(!createQueryLogTable()) return;
$o = [
'silentErrors' => true,
'noSlowQueryLog' => true,
'noErrorQueryLog' => true
];
$statement = makeSafe(trim(preg_replace('/^\s+/m', ' ', $statement)));
$error = makeSafe($error);
$memberID = makeSafe(getLoggedMemberID());
$uri = makeSafe($_SERVER['REQUEST_URI']);
sql("INSERT INTO `appgini_query_log` SET
`statement`='$statement',
`error`='$error',
`memberID`='$memberID',
`uri`='$uri'
", $o);
}
########################################################################
function createQueryLogTable() {
static $created = false;
if($created) return true;
$o = [
'silentErrors' => true,
'noSlowQueryLog' => true,
'noErrorQueryLog' => true
];
sql("CREATE TABLE IF NOT EXISTS `appgini_query_log` (
`datetime` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
`statement` LONGTEXT,
`duration` DECIMAL(10,2) UNSIGNED DEFAULT 0.0,
`error` TEXT,
`memberID` VARCHAR(200),
`uri` VARCHAR(200)
) CHARSET " . mysql_charset, $o);
// check if table created
//$o2 = $o;
//$o2['error'] = '';
//sql("SELECT COUNT(1) FROM 'appgini_query_log'", $o2);
//$created = empty($o2['error']);
$created = true;
return $created;
}
########################################################################
function sqlValue($statement, &$error = NULL) {
// executes a statement that retreives a single data value and returns the value retrieved
$eo = ['silentErrors' => true];
if(!$res = sql($statement, $eo)) { $error = $eo['error']; return false; }
if(!$row = db_fetch_row($res)) return false;
return $row[0];
}
########################################################################
function getLoggedAdmin() {
return Authentication::getAdmin();
}
########################################################################
function initSession() {
Authentication::initSession();
}
########################################################################
function jwt_key() {
if(!is_file(configFileName())) return false;
return md5_file(configFileName());
}
########################################################################
function jwt_token($user = false) {
if($user === false) {
$mi = Authentication::getUser();
if(!$mi) return false;
$user = $mi['memberId'];
}
$key = jwt_key();
if($key === false) return false;
return JWT::encode(['user' => $user], $key);
}
########################################################################
function jwt_header() {
/* adapted from https://stackoverflow.com/a/40582472/1945185 */
$auth_header = null;
if(isset($_SERVER['Authorization'])) {
$auth_header = trim($_SERVER['Authorization']);
} elseif(isset($_SERVER['HTTP_AUTHORIZATION'])) { //Nginx or fast CGI
$auth_header = trim($_SERVER['HTTP_AUTHORIZATION']);
} elseif(isset($_SERVER['HTTP_X_AUTHORIZATION'])) { //hack if all else fails
$auth_header = trim($_SERVER['HTTP_X_AUTHORIZATION']);
} elseif(function_exists('apache_request_headers')) {
$rh = apache_request_headers();
// Server-side fix for bug in old Android versions (a nice side-effect of this fix means we don't care about capitalization for Authorization)
$rh = array_combine(array_map('ucwords', array_keys($rh)), array_values($rh));
if(isset($rh['Authorization'])) {
$auth_header = trim($rh['Authorization']);
} elseif(isset($rh['X-Authorization'])) {
$auth_header = trim($rh['X-Authorization']);
}
}
if(!empty($auth_header)) {
if(preg_match('/Bearer\s(\S+)/', $auth_header, $matches)) return $matches[1];
}
return null;
}
########################################################################
function jwt_check_login() {
// do we have an Authorization Bearer header?
$token = jwt_header();
if(!$token) return false;
$key = jwt_key();
if($key === false) return false;
$error = '';
$payload = JWT::decode($token, $key, $error);
if(empty($payload['user'])) return false;
Authentication::signInAs($payload['user']);
// for API calls that just trigger an action and then close connection,
// we need to continue running
@ignore_user_abort(true);
@set_time_limit(120);
return true;
}
########################################################################
function curl_insert_handler($table, $data) {
if(!function_exists('curl_init')) return false;
$ch = curl_init();
$payload = $data;
$payload['insert_x'] = 1;
$url = application_url("{$table}_view.php");
$token = jwt_token();
$options = [
CURLOPT_URL => $url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => http_build_query($payload),
CURLOPT_HTTPHEADER => [
"User-Agent: {$_SERVER['HTTP_USER_AGENT']}",
"Accept: {$_SERVER['HTTP_ACCEPT']}",
"Authorization: Bearer $token",
"X-Authorization: Bearer $token",
],
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_RETURNTRANSFER => true,
/* this is a localhost request so need to verify SSL */
CURLOPT_SSL_VERIFYPEER => false,
// the following option allows sending request and then
// closing the connection without waiting for response
// see https://stackoverflow.com/a/10895361/1945185
CURLOPT_TIMEOUT => 8,
];
if(defined('CURLOPT_TCP_FASTOPEN')) $options[CURLOPT_TCP_FASTOPEN] = true;
if(defined('CURLOPT_SAFE_UPLOAD'))
$options[CURLOPT_SAFE_UPLOAD] = function_exists('curl_file_create');
// this is safe to use as we're sending a local request
if(defined('CURLOPT_UNRESTRICTED_AUTH')) $options[CURLOPT_UNRESTRICTED_AUTH] = 1;
curl_setopt_array($ch, $options);
return $ch;
}
########################################################################
function curl_batch($handlers) {
if(!function_exists('curl_init')) return false;
if(!is_array($handlers)) return false;
if(!count($handlers)) return false;
$mh = curl_multi_init();
if(function_exists('curl_multi_setopt')) {
curl_multi_setopt($mh, CURLMOPT_PIPELINING, 1);
curl_multi_setopt($mh, CURLMOPT_MAXCONNECTS, min(20, count($handlers)));
}
foreach($handlers as $ch) {
@curl_multi_add_handle($mh, $ch);
}
$active = false;
do {
@curl_multi_exec($mh, $active);
usleep(2000);
} while($active > 0);
}
########################################################################
function logOutUser() {
RememberMe::logout();
}
########################################################################
function getPKFieldName($tn) {
// get pk field name of given table
static $pk = [];
if(isset($pk[$tn])) return $pk[$tn];
$stn = makeSafe($tn, false);
$eo = ['silentErrors' => true];
if(!$res = sql("SHOW FIELDS FROM `$stn`", $eo)) return $pk[$tn] = false;
while($row = db_fetch_assoc($res))
if($row['Key'] == 'PRI') return $pk[$tn] = $row['Field'];
return $pk[$tn] = false;
}
########################################################################
function getCSVData($tn, $pkValue, $stripTags = true) {
// get pk field name for given table
if(!$pkField = getPKFieldName($tn))
return '';
// get a concat string to produce a csv list of field values for given table record
if(!$res = sql("SHOW FIELDS FROM `$tn`", $eo))
return '';
$csvFieldList = '';
while($row = db_fetch_assoc($res))
$csvFieldList .= "`{$row['Field']}`,";
$csvFieldList = substr($csvFieldList, 0, -1);
$csvData = sqlValue("SELECT CONCAT_WS(', ', $csvFieldList) FROM `$tn` WHERE `$pkField`='" . makeSafe($pkValue, false) . "'");
return ($stripTags ? strip_tags($csvData) : $csvData);
}
########################################################################
function errorMsg($msg) {
echo "<div class=\"alert alert-danger\">{$msg}</div>";
}
########################################################################
function redirect($url, $absolute = false) {
$fullURL = ($absolute ? $url : application_url($url));
// append browser window id to url (check if it should be preceded by ? or &)
$fullURL .= (strpos($fullURL, '?') === false ? '?' : '&') . WindowMessages::windowIdQuery();
if(!headers_sent()) header("Location: {$fullURL}");
echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0;url={$fullURL}\">";
echo "<br><br><a href=\"{$fullURL}\">Click here</a> if you aren't automatically redirected.";
exit;
}
########################################################################
function htmlRadioGroup($name, $arrValue, $arrCaption, $selectedValue, $selClass = 'text-primary', $class = '', $separator = '<br>') {
if(!is_array($arrValue)) return '';
ob_start();
?>
<div class="radio %%CLASS%%"><label>
<input type="radio" name="%%NAME%%" id="%%ID%%" value="%%VALUE%%" %%CHECKED%%> %%LABEL%%
</label></div>
<?php
$template = ob_get_clean();
$out = '';
for($i = 0; $i < count($arrValue); $i++) {
$replacements = [
'%%CLASS%%' => html_attr($arrValue[$i] == $selectedValue ? $selClass :$class),
'%%NAME%%' => html_attr($name),
'%%ID%%' => html_attr($name . $i),
'%%VALUE%%' => html_attr($arrValue[$i]),
'%%LABEL%%' => $arrCaption[$i],
'%%CHECKED%%' => ($arrValue[$i]==$selectedValue ? " checked" : "")
];
$out .= str_replace(array_keys($replacements), array_values($replacements), $template);
}
return $out;
}
########################################################################
function htmlSelect($name, $arrValue, $arrCaption, $selectedValue, $class = '', $selectedClass = '') {
if($selectedClass == '')
$selectedClass = $class;
$out = '';
if(is_array($arrValue)) {
$out = "<select name=\"$name\" id=\"$name\">";
for($i = 0; $i < count($arrValue); $i++)
$out .= '<option value="' . $arrValue[$i] . '"' . ($arrValue[$i] == $selectedValue ? " selected class=\"$class\"" : " class=\"$selectedClass\"") . '>' . $arrCaption[$i] . '</option>';
$out .= '</select>';
}
return $out;
}
########################################################################
function htmlSQLSelect($name, $sql, $selectedValue, $class = '', $selectedClass = '') {
$arrVal = [''];
$arrCap = [''];
if($res = sql($sql, $eo)) {
while($row = db_fetch_row($res)) {
$arrVal[] = $row[0];
$arrCap[] = $row[1];
}
return htmlSelect($name, $arrVal, $arrCap, $selectedValue, $class, $selectedClass);
}
return '';
}
########################################################################
function bootstrapSelect($name, $arrValue, $arrCaption, $selectedValue, $class = '', $selectedClass = '') {
if($selectedClass == '') $selectedClass = $class;
$out = "<select class=\"form-control\" name=\"{$name}\" id=\"{$name}\">";
if(is_array($arrValue)) {
for($i = 0; $i < count($arrValue); $i++) {
$selected = "class=\"{$class}\"";
if($arrValue[$i] == $selectedValue) $selected = "selected class=\"{$selectedClass}\"";
$out .= "<option value=\"{$arrValue[$i]}\" {$selected}>{$arrCaption[$i]}</option>";
}
}
$out .= '</select>';
return $out;
}
########################################################################
function bootstrapSQLSelect($name, $sql, $selectedValue, $class = '', $selectedClass = '') {
$arrVal = [''];
$arrCap = [''];
$eo = ['silentErrors' => true];
if($res = sql($sql, $eo)) {
while($row = db_fetch_row($res)) {
$arrVal[] = $row[0];
$arrCap[] = $row[1];
}
return bootstrapSelect($name, $arrVal, $arrCap, $selectedValue, $class, $selectedClass);
}
return '';
}
########################################################################
function isEmail($email){
if(preg_match('/^([*+!.&#$¦\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,30})$/i', $email))
return $email;
return false;
}
########################################################################
function notifyMemberApproval($memberID) {
$adminConfig = config('adminConfig');
$memberID = strtolower($memberID);
$email = sqlValue("select email from membership_users where lcase(memberID)='{$memberID}'");
return sendmail([
'to' => $email,
'name' => $memberID,
'subject' => $adminConfig['approvalSubject'],
'message' => nl2br($adminConfig['approvalMessage']),
]);
}
########################################################################
function setupMembership() {
if(empty($_SESSION) || empty($_SESSION['memberID'])) return;
/* abort if current page is one of the following exceptions */
if(in_array(basename($_SERVER['PHP_SELF']), [
'pageEditMember.php',
'membership_passwordReset.php',
'membership_profile.php',
'membership_signup.php',
'pageChangeMemberStatus.php',
'pageDeleteGroup.php',
'pageDeleteMember.php',
'pageEditGroup.php',
'pageEditMemberPermissions.php',
'pageRebuildFields.php',
'pageSettings.php',
'ajax_check_login.php',
'parent-children.php',
])) return;
// abort if current page is ajax
if(is_ajax()) return;
if(strpos(basename($_SERVER['PHP_SELF']), 'ajax-') === 0) return;
// run once per session, but force proceeding if not all mem tables created
$res = sql("show tables like 'membership_%'", $eo);
$num_mem_tables = db_num_rows($res);
$mem_update_fn = membership_table_functions();
if(isset($_SESSION['setupMembership']) && $num_mem_tables >= count($mem_update_fn)) return;
// call each update_membership function
foreach($mem_update_fn as $mem_fn) {
$mem_fn();
}
configure_anonymous_group();
configure_admin_group();
$_SESSION['setupMembership'] = time();
}
########################################################################
function membership_table_functions() {
// returns a list of update_membership_* functions
$arr = get_defined_functions();
return array_filter($arr['user'], function($f) {
return (strpos($f, 'update_membership_') !== false);
});
}
########################################################################
function configure_anonymous_group() {
$eo = ['silentErrors' => true, 'noErrorQueryLog' => true];
$adminConfig = config('adminConfig');
$today = @date('Y-m-d');
$anon_group_safe = makeSafe($adminConfig['anonymousGroup']);
$anon_user = strtolower($adminConfig['anonymousMember']);
$anon_user_safe = makeSafe($anon_user);
/* create anonymous group if not there and get its ID */
$same_fields = "`allowSignup`=0, `needsApproval`=0";
sql("INSERT INTO `membership_groups` SET
`name`='{$anon_group_safe}', {$same_fields},
`description`='Anonymous group created automatically on {$today}'
ON DUPLICATE KEY UPDATE {$same_fields}",
$eo);
$anon_group_id = sqlValue("SELECT `groupID` FROM `membership_groups` WHERE `name`='{$anon_group_safe}'");
if(!$anon_group_id) return;
/* create guest user if not there or if guest name in config differs from that in db */
$anon_user_db = sqlValue("SELECT LCASE(`memberID`) FROM `membership_users`
WHERE `groupID`='{$anon_group_id}'");
if(!$anon_user_db || $anon_user_db != $anon_user) {
sql("DELETE FROM `membership_users` WHERE `groupID`='{$anon_group_id}'", $eo);
sql("INSERT INTO `membership_users` SET
`memberID`='{$anon_user_safe}',
`signUpDate`='{$today}',
`groupID`='{$anon_group_id}',
`isBanned`=0,
`isApproved`=1,
`comments`='Anonymous member created automatically on {$today}'",
$eo);
}
}
########################################################################
function configure_admin_group() {
$eo = ['silentErrors' => true, 'noErrorQueryLog' => true];
$adminConfig = config('adminConfig');
$today = @date('Y-m-d');
$admin_group_safe = 'Admins';
$admin_user_safe = makeSafe(strtolower($adminConfig['adminUsername']));
$admin_hash_safe = makeSafe($adminConfig['adminPassword']);
$admin_email_safe = makeSafe($adminConfig['senderEmail']);
/* create admin group if not there and get its ID */
$same_fields = "`allowSignup`=0, `needsApproval`=1";
sql("INSERT INTO `membership_groups` SET
`name`='{$admin_group_safe}', {$same_fields},
`description`='Admin group created automatically on {$today}'
ON DUPLICATE KEY UPDATE {$same_fields}",
$eo);
$admin_group_id = sqlValue("SELECT `groupID` FROM `membership_groups` WHERE `name`='{$admin_group_safe}'");
if(!$admin_group_id) return;
/* create super-admin user if not there (if exists, query would abort with suppressed error) */
sql("INSERT INTO `membership_users` SET
`memberID`='{$admin_user_safe}',
`passMD5`='{$admin_hash_safe}',
`email`='{$admin_email_safe}',
`signUpDate`='{$today}',
`groupID`='{$admin_group_id}',
`isBanned`=0,
`isApproved`=1,
`comments`='Admin member created automatically on {$today}'",
$eo);
/* insert/update admin group permissions to allow full access to all tables */
$tables = getTableList(true);
foreach($tables as $tn => $ignore) {