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-rw-r--r--mayor-orig/www/include/share/facebook/Url/FacebookUrlDetectionHandler.php182
-rw-r--r--mayor-orig/www/include/share/facebook/Url/FacebookUrlManipulator.php167
-rw-r--r--mayor-orig/www/include/share/facebook/Url/UrlDetectionInterface.php39
3 files changed, 388 insertions, 0 deletions
diff --git a/mayor-orig/www/include/share/facebook/Url/FacebookUrlDetectionHandler.php b/mayor-orig/www/include/share/facebook/Url/FacebookUrlDetectionHandler.php
new file mode 100644
index 00000000..1d134ddc
--- /dev/null
+++ b/mayor-orig/www/include/share/facebook/Url/FacebookUrlDetectionHandler.php
@@ -0,0 +1,182 @@
+<?php
+/**
+ * Copyright 2017 Facebook, Inc.
+ *
+ * You are hereby granted a non-exclusive, worldwide, royalty-free license to
+ * use, copy, modify, and distribute this software in source code or binary
+ * form for use in connection with the web services and APIs provided by
+ * Facebook.
+ *
+ * As with any software that integrates with the Facebook platform, your use
+ * of this software is subject to the Facebook Developer Principles and
+ * Policies [http://developers.facebook.com/policy/]. This copyright notice
+ * shall be included in all copies or substantial portions of the software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+namespace Facebook\Url;
+
+/**
+ * Class FacebookUrlDetectionHandler
+ *
+ * @package Facebook
+ */
+class FacebookUrlDetectionHandler implements UrlDetectionInterface
+{
+ /**
+ * @inheritdoc
+ */
+ public function getCurrentUrl()
+ {
+ return $this->getHttpScheme() . '://' . $this->getHostName() . $this->getServerVar('REQUEST_URI');
+ }
+
+ /**
+ * Get the currently active URL scheme.
+ *
+ * @return string
+ */
+ protected function getHttpScheme()
+ {
+ return $this->isBehindSsl() ? 'https' : 'http';
+ }
+
+ /**
+ * Tries to detect if the server is running behind an SSL.
+ *
+ * @return boolean
+ */
+ protected function isBehindSsl()
+ {
+ // Check for proxy first
+ $protocol = $this->getHeader('X_FORWARDED_PROTO');
+ if ($protocol) {
+ return $this->protocolWithActiveSsl($protocol);
+ }
+
+ $protocol = $this->getServerVar('HTTPS');
+ if ($protocol) {
+ return $this->protocolWithActiveSsl($protocol);
+ }
+
+ return (string)$this->getServerVar('SERVER_PORT') === '443';
+ }
+
+ /**
+ * Detects an active SSL protocol value.
+ *
+ * @param string $protocol
+ *
+ * @return boolean
+ */
+ protected function protocolWithActiveSsl($protocol)
+ {
+ $protocol = strtolower((string)$protocol);
+
+ return in_array($protocol, ['on', '1', 'https', 'ssl'], true);
+ }
+
+ /**
+ * Tries to detect the host name of the server.
+ *
+ * Some elements adapted from
+ *
+ * @see https://github.com/symfony/HttpFoundation/blob/master/Request.php
+ *
+ * @return string
+ */
+ protected function getHostName()
+ {
+ // Check for proxy first
+ $header = $this->getHeader('X_FORWARDED_HOST');
+ if ($header && $this->isValidForwardedHost($header)) {
+ $elements = explode(',', $header);
+ $host = $elements[count($elements) - 1];
+ } elseif (!$host = $this->getHeader('HOST')) {
+ if (!$host = $this->getServerVar('SERVER_NAME')) {
+ $host = $this->getServerVar('SERVER_ADDR');
+ }
+ }
+
+ // trim and remove port number from host
+ // host is lowercase as per RFC 952/2181
+ $host = strtolower(preg_replace('/:\d+$/', '', trim($host)));
+
+ // Port number
+ $scheme = $this->getHttpScheme();
+ $port = $this->getCurrentPort();
+ $appendPort = ':' . $port;
+
+ // Don't append port number if a normal port.
+ if (($scheme == 'http' && $port == '80') || ($scheme == 'https' && $port == '443')) {
+ $appendPort = '';
+ }
+
+ return $host . $appendPort;
+ }
+
+ protected function getCurrentPort()
+ {
+ // Check for proxy first
+ $port = $this->getHeader('X_FORWARDED_PORT');
+ if ($port) {
+ return (string)$port;
+ }
+
+ $protocol = (string)$this->getHeader('X_FORWARDED_PROTO');
+ if ($protocol === 'https') {
+ return '443';
+ }
+
+ return (string)$this->getServerVar('SERVER_PORT');
+ }
+
+ /**
+ * Returns the a value from the $_SERVER super global.
+ *
+ * @param string $key
+ *
+ * @return string
+ */
+ protected function getServerVar($key)
+ {
+ return isset($_SERVER[$key]) ? $_SERVER[$key] : '';
+ }
+
+ /**
+ * Gets a value from the HTTP request headers.
+ *
+ * @param string $key
+ *
+ * @return string
+ */
+ protected function getHeader($key)
+ {
+ return $this->getServerVar('HTTP_' . $key);
+ }
+
+ /**
+ * Checks if the value in X_FORWARDED_HOST is a valid hostname
+ * Could prevent unintended redirections
+ *
+ * @param string $header
+ *
+ * @return boolean
+ */
+ protected function isValidForwardedHost($header)
+ {
+ $elements = explode(',', $header);
+ $host = $elements[count($elements) - 1];
+
+ return preg_match("/^([a-z\d](-*[a-z\d])*)(\.([a-z\d](-*[a-z\d])*))*$/i", $host) //valid chars check
+ && 0 < strlen($host) && strlen($host) < 254 //overall length check
+ && preg_match("/^[^\.]{1,63}(\.[^\.]{1,63})*$/", $host); //length of each label
+ }
+}
diff --git a/mayor-orig/www/include/share/facebook/Url/FacebookUrlManipulator.php b/mayor-orig/www/include/share/facebook/Url/FacebookUrlManipulator.php
new file mode 100644
index 00000000..daeab9c5
--- /dev/null
+++ b/mayor-orig/www/include/share/facebook/Url/FacebookUrlManipulator.php
@@ -0,0 +1,167 @@
+<?php
+/**
+ * Copyright 2017 Facebook, Inc.
+ *
+ * You are hereby granted a non-exclusive, worldwide, royalty-free license to
+ * use, copy, modify, and distribute this software in source code or binary
+ * form for use in connection with the web services and APIs provided by
+ * Facebook.
+ *
+ * As with any software that integrates with the Facebook platform, your use
+ * of this software is subject to the Facebook Developer Principles and
+ * Policies [http://developers.facebook.com/policy/]. This copyright notice
+ * shall be included in all copies or substantial portions of the software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+namespace Facebook\Url;
+
+/**
+ * Class FacebookUrlManipulator
+ *
+ * @package Facebook
+ */
+class FacebookUrlManipulator
+{
+ /**
+ * Remove params from a URL.
+ *
+ * @param string $url The URL to filter.
+ * @param array $paramsToFilter The params to filter from the URL.
+ *
+ * @return string The URL with the params removed.
+ */
+ public static function removeParamsFromUrl($url, array $paramsToFilter)
+ {
+ $parts = parse_url($url);
+
+ $query = '';
+ if (isset($parts['query'])) {
+ $params = [];
+ parse_str($parts['query'], $params);
+
+ // Remove query params
+ foreach ($paramsToFilter as $paramName) {
+ unset($params[$paramName]);
+ }
+
+ if (count($params) > 0) {
+ $query = '?' . http_build_query($params, null, '&');
+ }
+ }
+
+ $scheme = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
+ $host = isset($parts['host']) ? $parts['host'] : '';
+ $port = isset($parts['port']) ? ':' . $parts['port'] : '';
+ $path = isset($parts['path']) ? $parts['path'] : '';
+ $fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : '';
+
+ return $scheme . $host . $port . $path . $query . $fragment;
+ }
+
+ /**
+ * Gracefully appends params to the URL.
+ *
+ * @param string $url The URL that will receive the params.
+ * @param array $newParams The params to append to the URL.
+ *
+ * @return string
+ */
+ public static function appendParamsToUrl($url, array $newParams = [])
+ {
+ if (empty($newParams)) {
+ return $url;
+ }
+
+ if (strpos($url, '?') === false) {
+ return $url . '?' . http_build_query($newParams, null, '&');
+ }
+
+ list($path, $query) = explode('?', $url, 2);
+ $existingParams = [];
+ parse_str($query, $existingParams);
+
+ // Favor params from the original URL over $newParams
+ $newParams = array_merge($newParams, $existingParams);
+
+ // Sort for a predicable order
+ ksort($newParams);
+
+ return $path . '?' . http_build_query($newParams, null, '&');
+ }
+
+ /**
+ * Returns the params from a URL in the form of an array.
+ *
+ * @param string $url The URL to parse the params from.
+ *
+ * @return array
+ */
+ public static function getParamsAsArray($url)
+ {
+ $query = parse_url($url, PHP_URL_QUERY);
+ if (!$query) {
+ return [];
+ }
+ $params = [];
+ parse_str($query, $params);
+
+ return $params;
+ }
+
+ /**
+ * Adds the params of the first URL to the second URL.
+ *
+ * Any params that already exist in the second URL will go untouched.
+ *
+ * @param string $urlToStealFrom The URL harvest the params from.
+ * @param string $urlToAddTo The URL that will receive the new params.
+ *
+ * @return string The $urlToAddTo with any new params from $urlToStealFrom.
+ */
+ public static function mergeUrlParams($urlToStealFrom, $urlToAddTo)
+ {
+ $newParams = static::getParamsAsArray($urlToStealFrom);
+ // Nothing new to add, return as-is
+ if (!$newParams) {
+ return $urlToAddTo;
+ }
+
+ return static::appendParamsToUrl($urlToAddTo, $newParams);
+ }
+
+ /**
+ * Check for a "/" prefix and prepend it if not exists.
+ *
+ * @param string|null $string
+ *
+ * @return string|null
+ */
+ public static function forceSlashPrefix($string)
+ {
+ if (!$string) {
+ return $string;
+ }
+
+ return strpos($string, '/') === 0 ? $string : '/' . $string;
+ }
+
+ /**
+ * Trims off the hostname and Graph version from a URL.
+ *
+ * @param string $urlToTrim The URL the needs the surgery.
+ *
+ * @return string The $urlToTrim with the hostname and Graph version removed.
+ */
+ public static function baseGraphUrlEndpoint($urlToTrim)
+ {
+ return '/' . preg_replace('/^https:\/\/.+\.facebook\.com(\/v.+?)?\//', '', $urlToTrim);
+ }
+}
diff --git a/mayor-orig/www/include/share/facebook/Url/UrlDetectionInterface.php b/mayor-orig/www/include/share/facebook/Url/UrlDetectionInterface.php
new file mode 100644
index 00000000..dca38a0c
--- /dev/null
+++ b/mayor-orig/www/include/share/facebook/Url/UrlDetectionInterface.php
@@ -0,0 +1,39 @@
+<?php
+/**
+ * Copyright 2017 Facebook, Inc.
+ *
+ * You are hereby granted a non-exclusive, worldwide, royalty-free license to
+ * use, copy, modify, and distribute this software in source code or binary
+ * form for use in connection with the web services and APIs provided by
+ * Facebook.
+ *
+ * As with any software that integrates with the Facebook platform, your use
+ * of this software is subject to the Facebook Developer Principles and
+ * Policies [http://developers.facebook.com/policy/]. This copyright notice
+ * shall be included in all copies or substantial portions of the software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+namespace Facebook\Url;
+
+/**
+ * Interface UrlDetectionInterface
+ *
+ * @package Facebook
+ */
+interface UrlDetectionInterface
+{
+ /**
+ * Get the currently active URL.
+ *
+ * @return string
+ */
+ public function getCurrentUrl();
+}