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<?php
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//$Id: feedback.module,v 1.2 2006/02/25 05:52:41 frjo Exp $
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/**
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* @file
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* Copyright 2004-2005 Khalid Baheyeldin http://2bits.com
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* Modified by Fredrik Jonsson fredrik at combonet dot se
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* More information at http://xdeb.org/drupaldev
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*/
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/**
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* Implementation of hook_help().
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*/
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function feedback_help($section = 'admin/help#feedback') {
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$args = array("%permissions" => url("admin/access"), "%feedback" => url("feedback"));
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switch($section) {
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case 'admin/help#feedback':
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$output = t("
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<p>Users with the correct <a href=\"%permissions\">permissions</a> can send feedback
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to the site admin via email from a form on the site.</p>
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<p>To enable its use, a user needs the \"access feedback\" permission.</p>
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<p>The site admin specifies the email address that the users send to, as well as other
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parameters, such as what fields to show the user to fill (name, address, email), whether
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the user address is to be validated, and whether to log all attempts to use this form.</p>
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<p>The email address is never visible to the users, and therefore cannot be used by SPAM
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harvesters.</p>", $args);
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break;
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case 'admin/modules#description':
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$output = t('Enables visitors to your site to provide feedback from a web form.');
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break;
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case 'admin/settings/feedback':
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$output = t("
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Here you can configure the feedback page.<br />
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The user needs the correct <a href=\"%permissions\">permissions</a> to see the
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<a href=\"%feedback\">feedback page</a>", $args);
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break;
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}
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return $output;
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}
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/**
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* Implementation of hook_perm().
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*/
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function feedback_perm() {
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return array('can send feedback');
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}
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/**
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* Implementation of hook_menu().
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*/
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function feedback_menu($may_cache) {
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$items = array();
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if (!$may_cache) {
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$items[] = array(
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'path' => 'feedback',
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'callback' => 'feedback_page',
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'title' => variable_get('feedback_nav_link', 'feedback'),
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'access' => user_access('can send feedback'),
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'type' => MENU_SUGGESTED_ITEM
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);
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}
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return $items;
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}
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function feedback_link($type, $node = 0, $main = 0) {
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global $user;
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$links = array();
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if ($type == 'page' && user_access('can send feedback')) {
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$links[] = l(t('feedback'), 'feedback');
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}
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return $links;
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}
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/**
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* Implementation of hook_settings()
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*/
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function feedback_settings() {
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$output = form_textfield(t('Default Email Address'), 'feedback_email',
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_feedback_get_to_email(), 80, 300,
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t('The email address which should receive all form submissions'));
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$output .= form_textfield(t('Navigation link text'), 'feedback_nav_link',
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variable_get('feedback_nav_link', 'feedback'), 80, 300,
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t('The text that will be shown in the navigation link'));
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$output .= form_textfield(t('Feedback Page Header'), 'feedback_pageheader',
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variable_get('feedback_pageheader', 'Use this form to send us feedback'), 80, 300,
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t('The page header text that will be shown at the top of the feedback page'));
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$output .= form_textfield(t('Subject Prefix'), 'feedback_subject_prefix',
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variable_get('feedback_subject_prefix', 'Feedback: '), 80, 80,
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t('The prefix that should be added before the subject on each email'));
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$output .= form_textarea(t('Instructions'), 'feedback_instructions',
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variable_get('feedback_instructions', 'Enter your message below: '), 60, 10,
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t('The instructions that will be displayed for the user on how to fill the form'));
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$group = form_textfield(t('Result Message - Success'), 'feedback_rmsg_success',
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variable_get('feedback_rmsg_success', 'Thank you for your message.'), 80, 80,
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t('The message that will be printed upon successfully completing the feedback request'));
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$group .= form_textfield(t('Result Message - Failure'), 'feedback_rmsg_failure',
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variable_get('feedback_rmsg_failure', 'There are errors in your form.'), 80, 80,
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t('The message that will be printed upon encountering an error in the feedback request'));
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$output .= form_group(t('Result Messages settings'), $group);
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$group = form_checkbox(t('Sender Email Address'), 'feedback_field_email', 1, variable_get('feedback_field_email', '1'));
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$group .= form_checkbox(t('Sender Name'), 'feedback_field_name', 1, variable_get('feedback_field_name', '1'));
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$group .= form_checkbox(t('Postal Address'), 'feedback_field_postal', 1, variable_get('feedback_field_postal', '0'));
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$group .= form_checkbox(t('Phone Number'), 'feedback_field_phone', 1, variable_get('feedback_field_phone', '0'));
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$group .= form_checkbox(t('Message Subject'), 'feedback_field_subject', 1, variable_get('feedback_field_subject', '1'));
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$group .= form_checkbox(t('Message Body'), 'feedback_field_body', 1, variable_get('feedback_field_body', '1'));
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$output .= form_group(t('Fields to include on the form'), $group);
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$group = form_checkbox(t('Validate Sender\'s Email Address'),
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'feedback_validate_sender_address', 1, variable_get('feedback_validate_sender_address', '0'));
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$group .= form_checkbox(t('Log all feedback attempts to watchdog'), 'feedback_logging', 1,
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variable_get('feedback_logging', '1'));
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$output .= form_group(t('Miscellaneous Settings'), $group);
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return $output;
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}
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/**
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* The feedback page
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*/
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function feedback_page() {
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$edit = $_POST['edit'];
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// Set breadcrumbs
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$breadcrumb = array(array('path' => 'feedback'));
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menu_set_location($breadcrumb);
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if ($edit) {
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feedback_validate_data();
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if (form_get_errors()) {
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print theme('page', feedback_display_form());
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}
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else {
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feedback_send_email();
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if (variable_get('feedback_logging', '1')) {
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feedback_watchdog_log();
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}
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drupal_set_message(variable_get('feedback_rmsg_success', 'Thank you for your message.'));
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print theme('page', '');
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}
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}
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else {
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print theme('page', feedback_display_form());
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}
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}
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function feedback_send_email() {
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$edit = $_POST['edit'];
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$subject_prefix = variable_get('feedback_subject_prefix', '');
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$subject = $subject_prefix .' '. $edit['form_field_subject'];
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$from_email = $edit['form_field_email'] ? $edit['form_field_email'] : _feedback_get_to_email();
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$to = _feedback_get_to_email();
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$body = feedback_format_body($edit['form_field_body']) ."\n\n". feedback_custom_footers();
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$headers = feedback_custom_headers();
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if ($to) {
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user_mail($to, $subject, $body, $headers);
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$rc = true;
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}
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else {
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$rc = false;
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}
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return $rc;
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}
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function _feedback_get_to_email() {
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return variable_get('feedback_email', variable_get('site_mail', ini_get('sendmail_from')));
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}
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function feedback_display_form() {
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global $user;
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$edit = $_POST['edit'];
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// Assign default values to some form fields while making sure the field
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// content is preserved after errors
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if (!$edit['form_field_name'] && $user->name) {
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$edit['form_field_name'] = $user->name;
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}
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if (!$edit['form_field_email'] && $user->mail) {
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$edit['form_field_email'] = $user->mail;
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}
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if (variable_get('feedback_pageheader', '')) {
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$title = variable_get('feedback_pageheader', '');
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}
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if (variable_get('feedback_field_name', '')) {
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$form .= form_textfield(t('Your Full Name'), 'form_field_name',
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$edit['form_field_name'], 60, 64, NULL, NULL, TRUE);
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}
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if (variable_get('feedback_field_email', '')) {
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$form .= form_textfield(t('Your E-Mail Address'), 'form_field_email',
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$edit['form_field_email'], 60, 64, NULL, NULL, TRUE);
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}
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if (variable_get('feedback_field_postal', '')) {
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$form .= form_textarea(t('Your Postal Address'), 'form_field_postal',
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$edit['form_field_postal'], 50, 4, NULL, NULL, TRUE);
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}
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if (variable_get('feedback_field_phone', '')) {
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$form .= form_textfield(t('Your Phone Number'), 'form_field_phone',
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$edit['form_field_phone'], 60, 64, NULL, NULL, TRUE);
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}
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if (variable_get('feedback_field_subject', '')) {
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$form .= form_textfield(t('Subject'), 'form_field_subject',
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$edit['form_field_subject'], 60, 64, NULL, NULL, TRUE);
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}
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if (variable_get('feedback_field_body', '')) {
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$form .= form_textarea (t('Message'), 'form_field_body',
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$edit['form_field_body'], 60, 15, NULL, NULL, TRUE);
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}
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$form .= form_hidden('form_field_referer', $_SERVER[HTTP_REFERER]);
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$form .= form_submit(t('Send Message'), 'op', $edit['op']);
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$output .= variable_get('feedback_instructions', '') . form($form, 'post');
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if ($title) {
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$output = theme('box', $title, $output);
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}
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return $output;
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}
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function feedback_watchdog_log() {
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$edit = $_POST['edit'];
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$name = $edit['form_field_name'];
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$email = $edit['form_field_email'];
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$subject = $edit['form_field_subject'];
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$message = "feedback: $name <$email> subject: $subject";
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watchdog('user', check_plain($message));
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}
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function feedback_validate_data() {
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global $user;
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$edit = $_POST['edit'];
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$name = $edit['form_field_name'];
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$email = $edit['form_field_email'];
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$subject = $edit['form_field_subject'];
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$body = $edit['form_field_body'];
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$postal = $edit['form_field_postal'];
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$phone = $edit['form_field_phone'];
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$referer = $edit['form_field_referer'] ;
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if (!strlen(trim($email)) && variable_get('feedback_field_email', '')) {
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form_set_error('form_field_email', t('Error: Please enter your e-mail address'));
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}
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else {
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$smtp_err = feedback_validate_email($email);
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if ($smtp_err) {
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form_set_error('form_field_email', t('Error: E-Mail address error ') . $smtp_err);
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}
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elseif (feedback_check_exploit($email)) {
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form_set_error('form_field_email', t('Invalid data in e-mail address'));
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}
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}
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if (!strlen(trim($name)) && variable_get('feedback_field_name', '')) {
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form_set_error('form_field_name', t('Error: Please enter your full name'));
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}
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elseif (feedback_check_exploit($name)) {
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form_set_error('form_field_name', t('Invalid data in name'));
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}
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// Note: The body does not need to be checked for exploits because it is
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// treated as text (RFC 822).
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if (!strlen(trim($body)) && variable_get('feedback_field_body', '')) {
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form_set_error('form_field_body', t('Error: Please enter your message'));
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}
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if (!strlen(trim($subject)) && variable_get('feedback_field_subject', '')) {
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form_set_error('form_field_subject', t('Error: Please enter a subject'));
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}
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elseif (feedback_check_exploit($subject)) {
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form_set_error('form_field_subject', t('Invalid data in subject'));
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}
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if (!strlen(trim($postal)) && variable_get('feedback_field_postal', '')) {
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form_set_error('form_field_postal', t('Error: Please enter your postal address'));
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}
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elseif (feedback_check_exploit($postal)) {
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form_set_error('form_field_postal', t('Invalid data in postal address'));
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}
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if (!strlen(trim($phone)) && variable_get('feedback_field_phone', '')) {
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form_set_error('form_field_phone', t('Error: Please enter your phone number'));
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}
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elseif (feedback_check_exploit($phone)) {
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form_set_error('form_field_phone', t('Invalid data in phone number'));
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}
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if (feedback_check_exploit($referer)) {
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form_set_error('form_field_referer', t('Invalid data in referer'));
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}
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}
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| 330 |
function feedback_check_exploit($data) {
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$bad_strings = array (
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'To:',
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'Cc:',
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'Bcc:',
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'Content-Type:',
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'MIME-Version:',
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| 337 |
'Content-Transfer-Encoding:');
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| 339 |
foreach($bad_strings as $str) {
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| 340 |
if (stristr($data, $str)) {
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watchdog ('user', t('Attempt to relay spam using %str. Field is %data',
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array('str'=>$str, 'data'=>$data)));
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| 343 |
return true;
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}
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| 345 |
}
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| 346 |
return false;
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}
|
| 348 |
|
| 349 |
function feedback_validate_email($email) {
|
| 350 |
|
| 351 |
if (valid_email_address($email)) {
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| 352 |
// It looks like a valid email address
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| 353 |
if (variable_get('feedback_validate_sender_address', '')) {
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| 354 |
$rc = feedback_try_to_feedback_address($email);
|
| 355 |
}
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| 356 |
else {
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| 357 |
$rc = '';
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| 358 |
}
|
| 359 |
}
|
| 360 |
else {
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| 361 |
$rc = t('Invalid E-mail address structure');
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| 362 |
}
|
| 363 |
|
| 364 |
return $rc;
|
| 365 |
}
|
| 366 |
|
| 367 |
function feedback_try_to_feedback_address($email) {
|
| 368 |
|
| 369 |
// This function is based on one that was written by
|
| 370 |
// Jon S. Stevens jon AT clearink.com
|
| 371 |
// Copyright 1998 Jon S. Stevens, Clear Ink
|
| 372 |
// This code has all the normal disclaimers.
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| 373 |
// It is free for any use, just keep the credits intact.
|
| 374 |
|
| 375 |
$server_name = $_SERVER['SERVER_NAME'];
|
| 376 |
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| 377 |
$rc = 'Undefined error';
|
| 378 |
|
| 379 |
list($user, $domain) = split('@', $email, 2);
|
| 380 |
$arr = explode('.', $domain);
|
| 381 |
$count = count($arr);
|
| 382 |
$tld = $arr[$count - 2] .'.'. $arr[$count - 1];
|
| 383 |
|
| 384 |
if (!$tld) {
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| 385 |
$rc = 'Error: Invalid domain part in e-mail';
|
| 386 |
return $rc;
|
| 387 |
}
|
| 388 |
|
| 389 |
if (checkdnsrr($tld, 'MX')) {
|
| 390 |
if (getmxrr($tld, $mxhosts, $weight)) {
|
| 391 |
for ($i = 0; $i < count($mxhosts); $i++) {
|
| 392 |
$fp = fsockopen($mxhosts[$i], 25);
|
| 393 |
if ($fp) {
|
| 394 |
$s = 0;
|
| 395 |
$c = 0;
|
| 396 |
$out = '';
|
| 397 |
set_socket_blocking($fp, false);
|
| 398 |
do {
|
| 399 |
$out = fgets($fp, 2500);
|
| 400 |
if (ereg("^220", $out)) {
|
| 401 |
$s = 0;
|
| 402 |
$out = '';
|
| 403 |
$c++;
|
| 404 |
}
|
| 405 |
else
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| 406 |
if (($c > 0) && ($out == '')) {
|
| 407 |
break;
|
| 408 |
}
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| 409 |
else {
|
| 410 |
$s++;
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| 411 |
}
|
| 412 |
if ($s == 9999) {
|
| 413 |
break;
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| 414 |
}
|
| 415 |
} while ($out == '');
|
| 416 |
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| 417 |
set_socket_blocking($fp, true);
|
| 418 |
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fputs($fp, "HELO $server_name\n");
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| 420 |
$output = fgets($fp, 2000);
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| 421 |
fputs($fp, "MAIL FROM: <info@". $tld .">\n");
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| 422 |
$output = fgets($fp, 2000);
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| 423 |
fputs($fp, "RCPT TO: <$email>\n");
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| 424 |
$output = fgets($fp, 2000);
|
| 425 |
if (ereg("^250", $output)) {
|
| 426 |
$rc = '';
|
| 427 |
}
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| 428 |
else {
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| 429 |
$rc = $output;
|
| 430 |
}
|
| 431 |
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| 432 |
fputs($fp, "QUIT\n");
|
| 433 |
fclose($fp);
|
| 434 |
|
| 435 |
if ($rc == '') {
|
| 436 |
break;
|
| 437 |
}
|
| 438 |
}
|
| 439 |
}
|
| 440 |
}
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| 441 |
}
|
| 442 |
|
| 443 |
return $rc;
|
| 444 |
}
|
| 445 |
|
| 446 |
function feedback_custom_footers() {
|
| 447 |
global $user;
|
| 448 |
|
| 449 |
$edit = $_POST['edit'];
|
| 450 |
$site_name = variable_get('site_name', '');
|
| 451 |
|
| 452 |
$footer .= "\n----------------------------------";
|
| 453 |
if ($site_name) {
|
| 454 |
$footer .= "\nSite Name : ". variable_get('site_name', '');
|
| 455 |
}
|
| 456 |
if ($user->name) {
|
| 457 |
$footer .= "\nRegistered name : ". $user->name;
|
| 458 |
}
|
| 459 |
if (isset($edit['form_field_name'])) {
|
| 460 |
$footer .= "\nFull Name : ". $edit['form_field_name'];
|
| 461 |
}
|
| 462 |
if (isset($edit['form_field_email'])) {
|
| 463 |
$footer .= "\nE-mail address : ". $edit['form_field_email'];
|
| 464 |
}
|
| 465 |
if (isset($edit['form_field_postal'])) {
|
| 466 |
$footer .= "\nPostal address : ". $edit['form_field_postal'];
|
| 467 |
}
|
| 468 |
if (isset($edit['form_field_phone'])) {
|
| 469 |
$footer .= "\nPhone Number : ". $edit['form_field_phone'];
|
| 470 |
}
|
| 471 |
if (isset($edit['form_field_referer'])) {
|
| 472 |
$footer .= "\nReferring page : ". $edit['form_field_referer'];
|
| 473 |
}
|
| 474 |
if (isset($_SERVER['REMOTE_ADDR'])) {
|
| 475 |
$footer .= "\nIP Address : ". 'http://whois.sc/' . $_SERVER['REMOTE_ADDR'];
|
| 476 |
}
|
| 477 |
if (isset($_SERVER['REMOTE_HOST'])) {
|
| 478 |
$footer .= "\nMachine name : ". $_SERVER['REMOTE_HOST'];
|
| 479 |
}
|
| 480 |
if (isset($_SERVER['HTTP_USER_AGENT'])) {
|
| 481 |
$footer .= "\nBrowser info : ". $_SERVER['HTTP_USER_AGENT'];
|
| 482 |
}
|
| 483 |
|
| 484 |
return $footer;
|
| 485 |
}
|
| 486 |
|
| 487 |
function feedback_custom_headers() {
|
| 488 |
$edit = $_POST['edit'];
|
| 489 |
|
| 490 |
$headers = '';
|
| 491 |
|
| 492 |
$name = $edit['form_field_name'];
|
| 493 |
|
| 494 |
$headers .= "From: $name <". $edit['form_field_email'] .">\n";
|
| 495 |
$headers .= "Reply-To: ". $edit['form_field_email'] ."\n";
|
| 496 |
$headers .= "Return-Path: ". $edit['form_field_email'] ."\n";
|
| 497 |
$headers .= "Errors-To: ". $edit['form_field_email'] ."\n";
|
| 498 |
$headers .= "X-Mailer: Drupal\n";
|
| 499 |
|
| 500 |
return $headers;
|
| 501 |
}
|
| 502 |
|
| 503 |
function feedback_format_body($body) {
|
| 504 |
|
| 505 |
$trans = get_html_translation_table(HTML_ENTITIES);
|
| 506 |
$trans = array_flip($trans);
|
| 507 |
|
| 508 |
$output = t("-- The following message was sent using the feedback page --\n\n");
|
| 509 |
$output .= wordwrap(strip_tags($body), 72);
|
| 510 |
|
| 511 |
$output = strtr(wordwrap(strip_tags($output), 72), $trans);
|
| 512 |
|
| 513 |
return $output;
|
| 514 |
}
|
| 515 |
|
| 516 |
?>
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