adsense.module in Google AdSense integration 6
Same filename and directory in other branches
Displays Google AdSense ads on Drupal pages.
This is the core module of the AdSense package, with the Drupal hooks and other administrative functions.
File
adsense.moduleView source
<?php
/**
* @file
* Displays Google AdSense ads on Drupal pages.
*
* This is the core module of the AdSense package, with the Drupal hooks
* and other administrative functions.
*/
// Ad types, link or ad.
define('ADSENSE_TYPE_LINK', 1);
define('ADSENSE_TYPE_AD', 2);
define('ADSENSE_TYPE_SEARCH', 3);
define('ADSENSE_MAX_CHANNELS', 10);
define('ADSENSE_AD_CHANNEL_DEFAULT', '');
define('ADSENSE_ACCESS_PAGES_DEFAULT', '');
define('ADSENSE_BASIC_ID_DEFAULT', '');
define('ADSENSE_DISABLE_DEFAULT', 0);
define('ADSENSE_ID_MODULE_DEFAULT', 'adsense_basic');
define('ADSENSE_PLACEHOLDER_DEFAULT', 1);
define('ADSENSE_PLACEHOLDER_TEXT_DEFAULT', 'Google AdSense');
define('ADSENSE_TEST_MODE_DEFAULT', 0);
define('ADSENSE_UNBLOCK_ADS_DEFAULT', 0);
define('ADSENSE_VISIBILITY_DEFAULT', 0);
define('ADSENSE_SECRET_LANGUAGE_DEFAULT', '');
/**
* This is the array that holds all ad formats.
*
* All it has is a multi-dimensional array indexed by a key, containing the ad
* type, the description, Google's javascript ad code and the dimensions.
*
* To add a new code:
* - Make sure the key is not in use by a different format
* - Go to Google AdSense
* . Get the dimensions
* . Get the code
* - Add it below
*
* @param string $key
* (optional) Ad key for which the format is needed.
*
* @return array
* if no key is provided: array of supported ad formats as an array (type,
* desc(ription), code, width and height). If a key is provided, the array
* containing the ad format for that key, or NULL if there is no ad with
* that key
*/
function adsense_ad_formats($key = NULL) {
$ads = array(
'120x240' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Vertical Banner'),
'code' => '120x240_as',
'width' => 120,
'height' => 240,
),
'120x600' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Skyscraper'),
'code' => '120x600_as',
'width' => 120,
'height' => 600,
),
'125x125' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Button'),
'code' => '125x125_as',
'width' => 125,
'height' => 125,
),
'160x600' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Wide Skyscraper'),
'code' => '160x600_as',
'width' => 160,
'height' => 600,
),
'180x150' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Small Rectangle'),
'code' => '180x150_as',
'width' => 180,
'height' => 150,
),
'200x200' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Small Square'),
'code' => '200x200_as',
'width' => 200,
'height' => 200,
),
'234x60' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Half Banner'),
'code' => '234x60_as',
'width' => 234,
'height' => 60,
),
'250x250' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Square'),
'code' => '250x250_as',
'width' => 250,
'height' => 250,
),
'300x1050' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Portrait'),
'code' => '300x1050_as',
'width' => 300,
'height' => 1050,
),
'300x250' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Medium Rectangle'),
'code' => '300x250_as',
'width' => 300,
'height' => 250,
),
'300x600' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Large Skyscraper'),
'code' => '300x600_as',
'width' => 300,
'height' => 600,
),
'320x50' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Mobile Banner'),
'code' => '320x50_as',
'width' => 320,
'height' => 50,
),
'320x100' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Large Mobile Banner'),
'code' => '320x100_as',
'width' => 320,
'height' => 100,
),
'336x280' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Large Rectangle'),
'code' => '336x280_as',
'width' => 336,
'height' => 280,
),
'468x60' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Banner'),
'code' => '468x60_as',
'width' => 468,
'height' => 60,
),
'728x90' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Leaderboard'),
'code' => '728x90_as',
'width' => 728,
'height' => 90,
),
'970x250' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Billboard'),
'code' => '970x250_as',
'width' => 970,
'height' => 250,
),
'970x90' => array(
'type' => ADSENSE_TYPE_AD,
'desc' => t('Large Leaderboard'),
'code' => '970x90_as',
'width' => 970,
'height' => 90,
),
'120x90' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('4-links Vertical Smal'),
'code' => '120x90_0ads_al',
'width' => 120,
'height' => 90,
),
'160x90' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('4-links Vertical Medium'),
'code' => '160x90_0ads_al',
'width' => 160,
'height' => 90,
),
'180x90' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('4-links Vertical Large'),
'code' => '180x90_0ads_al',
'width' => 180,
'height' => 90,
),
'200x90' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('4-links Vertical X-Large'),
'code' => '200x90_0ads_al',
'width' => 200,
'height' => 90,
),
'468x15' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('4-links Horizontal Medium'),
'code' => '468x15_0ads_al',
'width' => 468,
'height' => 15,
),
'728x15' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('4-links Horizontal Large'),
'code' => '728x15_0ads_al',
'width' => 728,
'height' => 15,
),
'120x90_5' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('5-links Vertical Smal'),
'code' => '120x90_0ads_al_s',
'width' => 120,
'height' => 90,
),
'160x90_5' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('5-links Vertical Medium'),
'code' => '160x90_0ads_al_s',
'width' => 160,
'height' => 90,
),
'180x90_5' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('5-links Vertical Large'),
'code' => '180x90_0ads_al_s',
'width' => 180,
'height' => 90,
),
'200x90_5' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('5-links Vertical X-Large'),
'code' => '200x90_0ads_al_s',
'width' => 200,
'height' => 90,
),
'468x15_5' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('5-links Horizontal Medium'),
'code' => '468x15_0ads_al_s',
'width' => 468,
'height' => 15,
),
'728x15_5' => array(
'type' => ADSENSE_TYPE_LINK,
'desc' => t('5-links Horizontal Large'),
'code' => '728x15_0ads_al_s',
'width' => 728,
'height' => 15,
),
);
if (!empty($key)) {
if (array_key_exists($key, $ads)) {
return $ads[$key];
}
elseif ($key == 'Search Box') {
return array(
'type' => ADSENSE_TYPE_SEARCH,
'desc' => t('AdSense for Search'),
);
}
else {
return NULL;
}
}
return $ads;
}
/**
* Implementation of hook_perm().
*/
function adsense_perm() {
return array(
'administer adsense',
'hide adsense',
'show adsense placeholders',
'use PHP for ad visibility',
);
}
/**
* Implementation of hook_theme().
*/
function adsense_theme() {
return array(
'adsense_ad' => array(
'arguments' => array(
'ad' => NULL,
'module' => NULL,
'format' => NULL,
),
),
'adsense_placeholder' => array(
'arguments' => array(
'text' => NULL,
'width' => 0,
'height' => 0,
),
),
);
}
/**
* Implementation of hook_menu().
*/
function adsense_menu() {
$items = array();
$items['admin/settings/adsense'] = array(
'title' => 'AdSense',
'description' => 'Configure Google AdSense Ads.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'adsense_main_settings',
),
'access arguments' => array(
'administer adsense',
),
'file' => 'adsense.admin.inc',
);
$items['admin/settings/adsense/main'] = array(
'title' => 'Settings',
'weight' => 10,
'type' => MENU_DEFAULT_LOCAL_TASK,
);
$items['admin/settings/adsense/publisher'] = array(
'title' => 'Publisher ID',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'adsense_id_settings',
),
'access arguments' => array(
'administer adsense',
),
'weight' => 0,
'type' => MENU_LOCAL_TASK,
'file' => 'adsense.admin.inc',
);
$items['admin/settings/adsense/publisher/site'] = array(
'title' => 'Site ID',
'weight' => -1,
'type' => MENU_DEFAULT_LOCAL_TASK,
);
return $items;
}
/**
* Implementation of hook_requirements().
*/
function adsense_requirements($phase) {
$requirements = array();
$t = get_t();
switch ($phase) {
// At runtime, make sure that we have a publisher ID.
case 'runtime':
$basic_id = variable_get('adsense_basic_id', ADSENSE_BASIC_ID_DEFAULT);
if (empty($basic_id)) {
$requirements['adsense_basic_id'] = array(
'title' => $t('AdSense'),
'value' => $t('Publisher ID is not set.'),
'description' => $t('Please configure it in the <a href="@url">AdSense Publisher ID settings page</a>.', array(
'@url' => url('admin/settings/adsense/publisher'),
)),
'severity' => REQUIREMENT_ERROR,
);
}
break;
}
return $requirements;
}
/**
* Implementation of hook_filter().
*/
function adsense_filter($op, $delta = 0, $format = -1, $text = '') {
switch ($op) {
case 'list':
return array(
0 => t('AdSense tag'),
);
case 'no cache':
return TRUE;
case 'description':
return t('Substitutes an AdSense special tag with an ad.');
case 'process':
return _adsense_process_tags($text);
default:
return $text;
}
}
/**
* Implementation of hook_form_filter_admin_format_form_alter().
*/
function adsense_form_filter_admin_format_form_alter(&$form, $form_state) {
// In Drupal <= 6.9 (or later) the HTML corrector has a bug that causes
// problems with the use of the AdSense tag filter.
sscanf(VERSION, "%d.%d", $major, $minor);
if ($major == 6 && $minor <= 99) {
if (empty($form_state['post']) && $form['filters']['adsense/0']['#default_value'] && $form['filters']['filter/3']['#default_value'] || !empty($form_state['post']) && $form_state['post']['filters']['adsense/0'] == '1' && $form_state['post']['filters']['filter/3'] == '1') {
drupal_set_message(t('The HTML corrector filter has a bug that causes problems with the use of the AdSense tag. Disabling the HTML corrector filter is recommended.'), 'warning', TRUE);
}
}
}
/**
* Implementation of hook_filter_tips().
*/
function adsense_filter_tips($delta, $format, $long = FALSE) {
return t('Use the special tag [adsense:<em>format</em>:<em>slot</em>] or [adsense:<em>format</em>:<em>[group]</em>:<em>[channel]</em><em>[:slot]</em>] or [adsense:block:<em>location</em>] to display Google AdSense ads.');
}
/**
* Helper function to process the adsense input filter.
*
* @param string $text
* Text of the node being processed.
*
* @return string
* modified text with the adsense tags replaced by Google AdSense ads
*
* @see adsense_filter()
* @see adsense_display()
*/
function _adsense_process_tags($text) {
$patterns = array(
'block' => '/\\[adsense:block:([^\\]]+)\\]/x',
'oldtag' => '/\\[adsense:([^:]+):(\\d*):(\\d*):?(\\w*)\\]/x',
'tag' => '/\\[adsense:([^:]+):([^\\]]+)\\]/x',
);
foreach ($patterns as $mode => $pattern) {
if (preg_match_all($pattern, $text, $matches, PREG_SET_ORDER)) {
foreach ($matches as $match) {
switch ($mode) {
case 'block':
$mods = array(
'adsense_managed',
'adsense_cse',
'adsense_oldcode',
'adsense_search',
);
foreach ($mods as $module) {
$module_blocks = module_invoke($module, 'block', 'list');
if ($module_blocks) {
foreach ($module_blocks as $delta => $block) {
if ($block['info'] == $match[1]) {
// Found the block with the same name as the passed arg.
$block = module_invoke($module, 'block', 'view', $delta);
$ad = $block['content'];
}
}
}
}
break;
case 'oldtag':
// If not specified, default group and channel to 1
if (empty($match[2])) {
$match[2] = 1;
}
if (empty($match[3])) {
$match[3] = 1;
}
$args = array(
'format' => $match[1],
'group' => $match[2],
'channel' => $match[3],
'slot' => $match[4],
);
$ad = adsense_display($args);
unset($args);
break;
case 'tag':
$args = array(
'format' => $match[1],
'slot' => $match[2],
);
$ad = adsense_display($args);
unset($args);
break;
}
// Replace the first occurance of the tag, in case we have the same
// tag more than once.
$str = '/\\' . $match[0] . '/';
$text = preg_replace($str, $ad, $text, 1);
}
}
}
return $text;
}
/**
* Provides the Google AdSense Publisher ID / slot ID to be used in the ad.
*
* If revenue sharing modules are installed, this function will call the
* appropriate function in those modules.
*
* @param string $format
* Format of the ad being generated (optional).
*
* @return mixed
* If the format parameter is supplied, array with 'client' and 'slot'
* fields, otherwise just the Publisher ID string is returned.
*/
function adsense_get_client_slot_id($format = NULL) {
// Get the configured function.
$function = variable_get('adsense_id_module', ADSENSE_ID_MODULE_DEFAULT);
if ($function != ADSENSE_ID_MODULE_DEFAULT) {
// Call the function.
if (function_exists($function)) {
$client_id = $function('client_id', $format);
if ($client_id) {
return $client_id;
}
}
}
return variable_get('adsense_basic_id', ADSENSE_BASIC_ID_DEFAULT);
}
/**
* Generates the Google AdSense Ad.
*
* This function is capable of handling two types of arguments:
* 1. an array of arguments (format, group, channel or slot)
* 2. 0 to 4 arguments:
* - 1st arg: format (default '160x600')
* - 2nd arg: group (default 1)
* - 3rd arg: channel (default 1)
* - 4th arg: slot (default '')
*
* A valid format must always be provided. If a slot is provided, the ad is
* generated by the new format modules, if not then the 'old' format modules
* are attempted.
*
* @return string
* Publisher ID string
*
* @see adsense_ad_formats()
* @see _adsense_page_match()
* @see _adsense_check_if_enabled()
* @see theme_adsense_placeholder()
* @see _adsense_can_insert_another()
* @see _adsense_cse_get_searchbox()
* @see _adsense_search_get_searchbox()
* @see _adsense_managed_get_ad()
* @see _adsense_oldcode_get_ad()
*/
function adsense_display() {
$numargs = func_num_args();
if ($numargs == 1 && is_array(func_get_arg(0))) {
$args = func_get_arg(0);
}
else {
// Handle the 'old' method of calling this function.
// adsense_display($format = '160x600', $group = 1, $channel = 1, $slot = '', $referral = 0, $cpa = '')
$args['format'] = '160x600';
$args['group'] = 1;
$args['channel'] = 1;
switch ($numargs) {
case 6:
// CPA isn't used anymore.
case 5:
// Referral is obsolete.
case 4:
$args['slot'] = func_get_arg(3);
case 3:
$args['channel'] = func_get_arg(2);
case 2:
$args['group'] = func_get_arg(1);
case 1:
$args['format'] = func_get_arg(0);
}
}
$ad = adsense_ad_formats($args['format']);
if ($ad === NULL) {
$ad = '<!--adsense: invalid format: ' . $args['format'] . '-->';
}
elseif (!_adsense_page_match()) {
// Check first if disabled or if we are at adsense limit or if this page
// doesn't allow adsense.
$ad = '<!--adsense: page not in match list-->';
}
elseif (!_adsense_can_insert_another($ad['type'])) {
$ad = '<!--adsense: ad limit reached for type-->';
}
elseif (!_adsense_check_if_enabled()) {
global $user;
// Ads are disabled.
if (variable_get('adsense_placeholder', ADSENSE_PLACEHOLDER_DEFAULT) || ($user->uid == 1 || user_access('show adsense placeholders'))) {
$width = array_key_exists('width', $ad) ? $ad['width'] : 0;
$height = array_key_exists('height', $ad) ? $ad['height'] : 0;
// The text to display in the placeholder starts with the block title,
// and then the default text as specified in the admin settings.
$text = isset($args['title']) ? t('Block') . ': ' . $args['title'] . '<br />' : '';
$text .= variable_get('adsense_placeholder_text', ADSENSE_PLACEHOLDER_TEXT_DEFAULT) . ' ' . $args['format'];
if (isset($user) && $user->uid == 1 || user_access('show adsense placeholders')) {
$text = t('Ads disabled for %name', array(
'%name' => $user->name,
)) . '<br />' . $text;
}
$ad = "<!--adsense: placeholder-->\n" . theme('adsense_placeholder', $text, $width, $height);
}
else {
$ad = '<!--adsense: ads disabled -->';
}
}
else {
// If site Slot ID for this ad was passed, pass the format as argument
// in case Publisher ID modules are enabled that can return different.
// Slot IDs per ad format.
$client_id_arg = !empty($args['slot']) ? $args['format'] : NULL;
$client = adsense_get_client_slot_id($client_id_arg);
if (is_array($client)) {
// An array was received, use that Slot ID.
$slot = $client['slot'];
$client = $client['client'];
}
elseif (isset($args['slot'])) {
// Use the original site Slot ID.
$slot = $args['slot'];
}
// Ad should be displayed.
switch ($args['format']) {
case 'Search Box':
if (!empty($slot) && module_exists('adsense_cse')) {
$ad = _adsense_cse_get_searchbox($client, $slot);
$module = 'adsense_cse';
}
elseif (module_exists('adsense_search')) {
$ad = _adsense_search_get_searchbox($client, $args['channel']);
$module = 'adsense_search';
}
else {
$ad = '<!--adsense: no AdSense for Search module found-->';
}
break;
default:
if (!empty($slot) && module_exists('adsense_managed')) {
$ad = _adsense_managed_get_ad($args['format'], $client, $slot);
$module = 'adsense_managed';
}
elseif (module_exists('adsense_oldcode')) {
$ad = _adsense_oldcode_get_ad($args['format'], $client, $args['group'], $args['channel']);
$module = 'adsense_oldcode';
}
else {
$ad = '<!--adsense: no AdSense for Content module found-->';
$module = '';
}
// Display ad-block disabling request.
if (variable_get('adsense_unblock_ads', ADSENSE_UNBLOCK_ADS_DEFAULT)) {
adsense_request_unblock();
}
$ad = theme('adsense_ad', $ad, $module, $args['format']);
break;
}
// Remove empty lines.
$ad = str_replace("\n\n", "\n", $ad);
}
return $ad;
}
/**
* Displays a request to disable adblockers, when their use is detected.
*/
function adsense_request_unblock() {
static $done = FALSE;
if (!$done) {
drupal_add_js(file_get_contents(drupal_get_path('module', 'adsense') . '/js/unblock.js'), 'inline');
$done = TRUE;
}
}
/**
* Default AdSense ad unit theming.
*
* Simply adds a div with the adsense and $module classes.
*
* @param string $ad
* String with the generated ad unit.
* @param string $module
* Module used to generate the ad.
*
* @return string
* string with the modified ad unit
*
* @ingroup themeable
*/
function theme_adsense_ad($ad, $module, $format = NULL) {
$dimensions = '';
if (isset($format)) {
$ad_fmt = adsense_ad_formats($format);
$dimensions = "width:{$ad_fmt['width']}px;height:{$ad_fmt['height']}px;";
}
return "<div class='adsense' style='display:inline-block;{$dimensions}'>\n{$ad}\n</div>";
}
/**
* Helper function to verify if ads are currently enabled.
*
* @return bool
* TRUE if ad display is enabled, FALSE otherwise
*/
function _adsense_check_if_enabled() {
if (!variable_get('adsense_basic_id', ADSENSE_BASIC_ID_DEFAULT)) {
// Google AdSense Publisher ID is not configured.
return FALSE;
}
if (variable_get('adsense_disable', ADSENSE_DISABLE_DEFAULT)) {
return FALSE;
}
if (variable_get('adsense_test_mode', ADSENSE_TEST_MODE_DEFAULT)) {
return TRUE;
}
if (user_access('hide adsense')) {
return FALSE;
}
if (user_access('show adsense placeholders')) {
// AdSense is enabled but this user should only see placeholders instead.
return FALSE;
}
return TRUE;
}
/**
* Determine if AdSense has reached limit on this page.
*
* As per Google's policies, a page can have up to 3 ad units and 3 link units.
*
* @return bool
* TRUE if we can insert another ad, FALSE if not allowed.
*/
function _adsense_can_insert_another($type = ADSENSE_TYPE_AD) {
static $num_ads = array(
ADSENSE_TYPE_AD => 0,
ADSENSE_TYPE_LINK => 0,
ADSENSE_TYPE_SEARCH => 0,
);
$max_ads = array(
ADSENSE_TYPE_AD => 3,
ADSENSE_TYPE_LINK => 3,
ADSENSE_TYPE_SEARCH => 2,
);
if ($num_ads[$type] < $max_ads[$type]) {
$num_ads[$type]++;
return TRUE;
}
// Because of #1627846, it's better to always return TRUE.
return TRUE;
// return FALSE;
}
/**
* Determine if AdSense has permission to be used on the current page.
*
* @return bool
* TRUE if can render, FALSE if not allowed.
*/
function _adsense_page_match() {
$pages = variable_get('adsense_access_pages', ADSENSE_ACCESS_PAGES_DEFAULT);
$visibility = variable_get('adsense_visibility', ADSENSE_VISIBILITY_DEFAULT);
if ($pages) {
if ($visibility == 2) {
return drupal_eval($pages);
}
$path = drupal_get_path_alias($_GET['q']);
$page_match = drupal_match_path($path, $pages);
if ($path != $_GET['q']) {
$page_match = $page_match || drupal_match_path($_GET['q'], $pages);
}
return !($visibility xor $page_match);
}
else {
return !$visibility;
}
}
/**
* Generate a box to display instead of the ad when it is disabled.
*
* @return string
* string with the HTML text to create the box
*
* @ingroup themeable
*/
function theme_adsense_placeholder($text, $width, $height) {
// Use inline CSS, as some ad-blocking software blocks CSS files.
$style = 'border:solid 1px;display:inline-block;overflow:hidden;text-align:center;word-wrap:break-word;';
$style .= !empty($width) && !empty($height) ? 'width:' . ($width - 2) . 'px;height:' . ($height - 2) . 'px;' : '';
return "<div class='adsense adsense-placeholder' style='{$style}'>{$text}</div>";
}Functions
Name |
Description |
|---|---|
| adsense_ad_formats | This is the array that holds all ad formats. |
| adsense_display | Generates the Google AdSense Ad. |
| adsense_filter | Implementation of hook_filter(). |
| adsense_filter_tips | Implementation of hook_filter_tips(). |
| adsense_form_filter_admin_format_form_alter | Implementation of hook_form_filter_admin_format_form_alter(). |
| adsense_get_client_slot_id | Provides the Google AdSense Publisher ID / slot ID to be used in the ad. |
| adsense_menu | Implementation of hook_menu(). |
| adsense_perm | Implementation of hook_perm(). |
| adsense_request_unblock | Displays a request to disable adblockers, when their use is detected. |
| adsense_requirements | Implementation of hook_requirements(). |
| adsense_theme | Implementation of hook_theme(). |
| theme_adsense_ad | Default AdSense ad unit theming. |
| theme_adsense_placeholder | Generate a box to display instead of the ad when it is disabled. |
| _adsense_can_insert_another | Determine if AdSense has reached limit on this page. |
| _adsense_check_if_enabled | Helper function to verify if ads are currently enabled. |
| _adsense_page_match | Determine if AdSense has permission to be used on the current page. |
| _adsense_process_tags | Helper function to process the adsense input filter. |