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<?php
function webform_invitation_menu() {
$items = array();
$items['node/%/invitation'] = array(
'title' => 'Invitation',
'page callback' => 'webform_invitation_settings_page',
'page arguments' => array(
1,
),
'access callback' => 'webform_invitation_access_check',
'access arguments' => array(
1,
),
'weight' => 10,
'type' => MENU_LOCAL_TASK,
'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,
);
$items['node/%/invitation/settings'] = array(
'title' => 'Settings',
'page callback' => 'webform_invitation_settings_page',
'page arguments' => array(
1,
),
'access callback' => 'webform_invitation_access_check',
'access arguments' => array(
1,
),
'weight' => -1,
'type' => MENU_DEFAULT_LOCAL_TASK,
);
$items['node/%/invitation/codes'] = array(
'title' => 'List codes',
'page callback' => 'webform_invitation_codes_page',
'page arguments' => array(
1,
),
'access callback' => 'webform_invitation_access_check',
'access arguments' => array(
1,
),
'weight' => 0,
'type' => MENU_LOCAL_TASK,
);
$items['node/%/invitation/generate'] = array(
'title' => 'Generate',
'page callback' => 'webform_invitation_generate_page',
'page arguments' => array(
1,
),
'access callback' => 'webform_invitation_access_check',
'access arguments' => array(
1,
),
'weight' => 1,
'type' => MENU_LOCAL_TASK,
);
$items['node/%/invitation/download'] = array(
'title' => 'Download',
'page callback' => 'webform_invitation_download_file',
'page arguments' => array(
1,
),
'access callback' => 'webform_invitation_access_check',
'access arguments' => array(
1,
),
'weight' => 2,
'type' => MENU_LOCAL_TASK,
);
return $items;
}
function webform_invitation_access_check($nid) {
$node = node_load($nid);
return $node->type == 'webform';
}
function webform_invitation_access() {
}
function webform_invitation_settings_page($nid = null) {
$out = drupal_get_form('webform_invitation_settings_form', $nid);
return $out;
}
function webform_invitation_settings_form($form, &$form_state, $nid) {
$db_setting = db_select('webform_invitation', 'i')
->fields('i')
->condition('nid', $nid, '=')
->execute()
->fetchAssoc();
$form['nid'] = array(
'#type' => 'hidden',
'#value' => $nid,
);
$form['wi_enabled'] = array(
'#type' => 'checkbox',
'#title' => t('Enable invitations for this webform'),
'#default_value' => $db_setting ? (int) $db_setting['invitation'] : 0,
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Save'),
);
return $form;
}
function webform_invitation_settings_form_submit($form, &$form_state) {
global $base_url;
$nid = $form_state['values']['nid'];
$wi_enabled = $form_state['values']['wi_enabled'];
db_merge('webform_invitation')
->key(array(
'nid' => $nid,
))
->fields(array(
'invitation' => $wi_enabled,
))
->execute();
if ($wi_enabled == 1) {
drupal_set_message(t('Invitation mode has been activated. You should now <a href="!base_url/node/!nid/invitation/generate">create some invitation codes</a>.', array(
'!base_url' => $base_url,
'!nid' => $nid,
)));
$node = node_load($nid);
$field_present = false;
foreach ($node->webform['components'] as $id => $com) {
if ($com['form_key'] == 'webform_invitation_code') {
$field_present = true;
break;
}
}
if ($field_present == false) {
$newid = max(array_keys($node->webform['components'])) + 1;
$code_box = array(
'nid' => $nid,
'cid' => $newid,
'pid' => 0,
'form_key' => 'webform_invitation_code',
'name' => t('Invite Code'),
'type' => 'textfield',
'value' => '%get[code]',
'extra' => array(
'description' => t('Enter your personal invitation code (only applies if the field is not populated yet).'),
'title_display' => 'inline',
'private' => 0,
'disabled' => 0,
'unique' => 1,
'maxlength' => 64,
'conditional_operator' => '=',
'width' => '',
'field_prefix' => '',
'field_suffix' => '',
'attributes' => array(),
'conditional_component' => '',
'conditional_values' => '',
),
'mandatory' => 1,
'weight' => 0,
'page_num' => 1,
);
$node->webform['components'][$newid] = $code_box;
node_save($node);
}
}
else {
drupal_set_message(t('Invitation mode has been disabled.'));
$node = node_load($nid);
foreach ($node->webform['components'] as $id => $com) {
if ($com['form_key'] == 'webform_invitation_code') {
unset($node->webform['components'][$id]);
node_save($node);
break;
}
}
}
}
function webform_invitation_codes_page($nid = null) {
$codes = db_select('webform_invitation_codes', 'c')
->fields('c')
->condition('nid', $nid, '=')
->execute()
->fetchAll();
$node = node_load($nid);
$out = "<h2>" . t('Invitation codes for webform %node_title', array(
"%node_title" => $node->title,
)) . "</h2>";
if (count($codes) > 0) {
$out .= "<table><tr><th>" . t('Code') . "</th><th>" . t('used?') . "</th></tr>";
foreach ($codes as $code) {
$out .= '<tr><td>' . $code->code . '</td><td>' . ($code->used != null ? t('yes') : t('no')) . '</td></tr>';
}
$out .= '</table>';
}
else {
$out .= '<p><em>' . t('No codes present, yet. Click on "Generate" above to create codes.') . '</em></p>';
}
return $out;
}
function webform_invitation_generate_page($nid = null) {
$out = drupal_get_form('webform_invitation_generate_form', $nid);
return $out;
}
function webform_invitation_generate_form($form, &$form_state, $nid) {
$form['intro'] = array(
'#markup' => '<p>' . t('To generate codes please enter the required number of codes and hit the button.') . '</p>',
);
$form['nid'] = array(
'#type' => 'hidden',
'#value' => $nid,
);
$form['number_of_tokens'] = array(
'#type' => 'textfield',
'#title' => t('# of codes to generate'),
'#default_value' => array(
25,
),
'#element_validate' => array(
'webform_invitation_validate_numeric_count',
),
'#required' => true,
);
$form['options'] = array(
'#type' => 'fieldset',
'#title' => t('Options'),
'#collapsible' => true,
'#collapsed' => true,
);
$form['options']['type_of_tokens'] = array(
'#type' => 'radios',
'#title' => t('type of tokens'),
'#default_value' => 1,
'#options' => array(
1 => t('md5 hash (32 characters)'),
99 => t('custom'),
),
);
$form['options']['length_of_tokens'] = array(
'#type' => 'textfield',
'#title' => t('length of tokens (number of characters)'),
'#default_value' => array(
32,
),
'#element_validate' => array(
'webform_invitation_validate_numeric_length',
),
'#states' => array(
'invisible' => array(
':input[name="type_of_tokens"]' => array(
'value' => 1,
),
),
),
);
$form['options']['chars_of_tokens'] = array(
'#type' => 'checkboxes',
'#title' => t('characters to be used for tokens'),
'#default_value' => array(
1,
2,
3,
),
'#options' => array(
1 => t('lower case letters (a-z)'),
2 => t('upper case letters (A-Z)'),
3 => t('digits (0-9)'),
4 => t('punctuation (.,:;-_!?'),
),
'#element_validate' => array(
'webform_invitation_validate_option_count',
),
'#states' => array(
'invisible' => array(
':input[name="type_of_tokens"]' => array(
'value' => 1,
),
),
),
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Generate'),
);
return $form;
}
function webform_invitation_validate_numeric_count($element, &$form_state) {
if (!preg_match('/^\\d+$/', $element['#value'])) {
form_error($element, t('Enter an integer only.'));
}
elseif ($element['#value'] < 0) {
form_error($element, t('Enter a number greater than zero.'));
}
}
function webform_invitation_validate_numeric_length($element, &$form_state) {
if (!preg_match('/^\\d+$/', $element['#value'])) {
form_error($element, t('Enter an integer only.'));
}
elseif ($element['#value'] < 5 || $element['#value'] > 64) {
form_error($element, t('The length must be between 5 and 64.'));
}
}
function webform_invitation_validate_option_count($element, &$form_state) {
if (count($element['#value']) == 0) {
form_error($element, t('Choose at least one character subset.'));
}
}
function webform_invitation_generate_form_submit($form, &$form_state) {
$number = $form_state['values']['number_of_tokens'];
$nid = $form_state['values']['nid'];
if ($form_state['values']['type_of_tokens'] == 1) {
$i = $l = 1;
while ($i <= $number && $l < $number * 10) {
$code = md5(microtime(1) * rand());
try {
$tmpres = db_insert('webform_invitation_codes')
->fields(array(
'nid' => $nid,
'code' => $code,
'generated' => REQUEST_TIME,
'used' => null,
))
->execute();
$i++;
} catch (PDOException $e) {
}
$l++;
}
}
elseif ($form_state['values']['type_of_tokens'] == 99) {
$length = $form_state['values']['length_of_tokens'];
$char_sets = $form_state['values']['chars_of_tokens'];
$chars = '';
if (in_array(1, $char_sets)) {
$chars .= 'abcdefghijklmnopqrstuvwxyz';
}
if (in_array(2, $char_sets)) {
$chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
}
if (in_array(3, $char_sets)) {
$chars .= '0123456789';
}
if (in_array(4, $char_sets)) {
$chars .= '.,:;-_!?';
}
$i = $l = 1;
while ($i <= $number && $l < $number * 10) {
$code = '';
for ($j = 1; $j <= $length; $j++) {
$code .= $chars[rand(0, strlen($chars) - 1)];
}
try {
$tmpres = db_insert('webform_invitation_codes')
->fields(array(
'nid' => $nid,
'code' => $code,
'generated' => REQUEST_TIME,
'used' => null,
))
->execute();
$i++;
} catch (PDOException $e) {
}
$l++;
}
}
if ($l >= $number * 10) {
drupal_set_message(t('Due to unique constraint, only @ccount codes have been generated.', array(
'@ccount' => $i - 1,
)), 'error');
}
drupal_goto('node/' . $nid . '/invitation/codes');
}
function webform_invitation_form_alter(&$form, &$form_state, $form_id) {
if (substr($form_id, 0, 20) == 'webform_client_form_') {
$nid = $form['#node']->nid;
if ($nid > 0) {
$db_setting = db_select('webform_invitation', 'i')
->fields('i')
->condition('nid', $nid, '=')
->execute()
->fetchAssoc();
if ($db_setting['invitation'] == "1") {
$form['#validate'][] = 'webform_invitation_code_validate';
}
}
}
return $form;
}
function webform_invitation_code_validate($form, &$form_state) {
if (isset($form_state['values']['submitted']['webform_invitation_code'])) {
$code = $form_state['values']['submitted']['webform_invitation_code'];
$result = db_select('webform_invitation_codes', 'c')
->fields('c')
->condition('code', $code, '=')
->execute()
->fetchAssoc();
if (!isset($result) || $result == null) {
form_set_error('webform_invitation_code', 'This code is not valid.');
}
elseif ($result['used'] > 0) {
}
else {
$num = db_update('webform_invitation_codes')
->fields(array(
'used' => REQUEST_TIME,
))
->condition('code', $code, '=')
->execute();
}
}
}
function webform_invitation_download_file($nid) {
global $base_url;
$xlshead = pack("s*", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
$xlsfoot = pack("s*", 0xa, 0x0);
$codes = db_select('webform_invitation_codes', 'c')
->fields('c')
->condition('nid', $nid, '=')
->execute();
$node = node_load($nid);
$data = "";
$row = 0;
while ($code = $codes
->fetchAssoc()) {
$data .= webform_invitation_xlsCell($row, 0, $base_url . "/" . drupal_get_path_alias("node/" . $nid) . '?code=' . $code['code']);
$row++;
}
$filename = "codes-" . $nid . ".xls";
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Disposition: attachment;filename={$filename}");
header("Content-Transfer-Encoding: binary ");
echo $xlshead . $data . $xlsfoot;
exit;
}
function webform_invitation_xlsCell($row, $col, $val) {
$len = strlen($val);
return pack("s*", 0x204, 8 + $len, $row, $col, 0x0, $len) . $val;
}
