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Feature/recaptcha #50

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Feature/recaptcha #50

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3bb8989
Add support for reCaptcha validation
tmayfield-costrack Jan 19, 2024
b5a2899
Put the new language strings together
tmayfield-costrack Jan 19, 2024
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5 changes: 5 additions & 0 deletions lang/en/local_pages.php
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,11 @@
$string['email_headers'] = 'Custom headers for PHP mail';
$string['user_copy'] = "Copy message to person";
$string['user_copy_description'] = "Select if the person filling in the form is to receive a message";
$string['recaptcha_site_key'] = "Google reCaptcha site key";
$string['recaptcha_site_key_description'] = "Included in the data sent to Google. When set, all forms will have a reCaptcha added and the user response will be validated.";
$string['recaptcha_secret_key'] = "Google reCaptcha secret key";
$string['recaptcha_secret_key_description'] = "Used to validate the reCaptcha submission from the user";
$string['invalid_recaptcha'] = 'The reCaptcha response did not verify. Please try again (with JavaScript enabled).';
$string['message_copy'] = "Message to go to user";
$string['message_copy_description'] = "Enter {field name} from the form to appear in the message. Use {table} to place the all form fields";
$string['enable_limit'] = "Limit emails to one per session";
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39 changes: 39 additions & 0 deletions renderer.php
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Original file line number Diff line number Diff line change
Expand Up @@ -283,6 +283,25 @@ public function createform($data) {
$str .= '<span class="help-block">' . $this->error_fields[$value->name] . '</span>';
}

$recaptcha_site_key = get_config('local_pages', 'recaptcha_site_key');
if ($recaptcha_site_key)
{
$recaptcha_error = "";
if (isset($this->error_fields['recaptcha'])) {
$recaptcha_error = '<span class="help-block error-item">' . $this->error_fields['recaptcha'] . '</span>';
}
$str .= <<<HTML
<script src="https://www.google.com/recaptcha/api.js" async defer></script>
<div class="fitem fitem_actionbuttons fitem_fgroup">
<div class="felement fgroup">
$recaptcha_error
<div class="g-recaptcha" data-sitekey="$recaptcha_site_key"></div>
</div>
</div>
HTML;

}

$str .= '<div class="fitem fitem_actionbuttons fitem_fgroup"><div class="felement fgroup">' .
'<input type="text" name="hp" value="" style="position:absolute;left:-99999px" /> ' .
'<button type="submit" name="formsubmit" value="1" class="btn btn-primary">Submit</button>' .
Expand Down Expand Up @@ -322,6 +341,26 @@ public function valid($records) {
}
}
}
$recaptcha_site_key = get_config('local_pages', 'recaptcha_site_key');
if ($recaptcha_site_key)
{
$recaptcha_secret_key = get_config('local_pages', 'recaptcha_secret_key');
$captcha = isset($_POST['g-recaptcha-response']) ? $_POST['g-recaptcha-response'] : "";
if (!$captcha)
{
$this->error_fields['recaptcha'] = get_string('pleasefillin', 'local_pages', 'reCaptcha');
return false;
}

// Verify the reCaptcha response
$url = "https://www.google.com/recaptcha/api/siteverify?secret=$recaptcha_secret_key&response={$captcha}&remoteip={$_SERVER['REMOTE_ADDR']}";
$response = json_decode(file_get_contents($url), true);
if (!$response['success'])
{
$this->error_fields['recaptcha'] = get_string('invalid_recaptcha', 'local_pages');
return false;
}
}
return $valid;
}

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17 changes: 17 additions & 0 deletions settings.php
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,23 @@
0
);

$settings[] = new \admin_setting_configtext(
'local_pages/recaptcha_site_key',
get_string('recaptcha_site_key', 'local_pages'),
get_string('recaptcha_site_key_description', 'local_pages'),
'',
PARAM_TEXT,
80
);
$settings[] = new \admin_setting_configtext(
'local_pages/recaptcha_secret_key',
get_string('recaptcha_secret_key', 'local_pages'),
get_string('recaptcha_secret_key_description', 'local_pages'),
'',
PARAM_TEXT,
80
);

// Setting to define a message to be sent to a user from a form.
$settings[] = new \admin_setting_confightmleditor(
'local_pages/message_copy',
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