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712 lines (600 loc) · 20.3 KB
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<?php
// Version 1.2.3
// You need to get this from PEAR
// http://pear.php.net/package/Crypt_HMAC
if ( file_exists(dirname(__FILE__) . '/HMAC.php') )
## Use this line if you put the HMAC.php file in the same directory
require_once(dirname(__FILE__) . '/HMAC.php');
else
## Use the following line if you keep HMAC.php in the PEAR repository.
require_once('Crypt/HMAC.php');
class SSLiveAPI {
// PUBLIC
var $domain = '';
var $auth = array('type'=>'', 'username'=>'', 'password'=>'', 'token'=>'', 'expires'=>'');
var $last_error = '';
var $protocol = 'http';
var $use_simplexml = false;
// PRIVATE
var $xml_depth = 0;
var $xml_node_arrays = NULL;
var $xml_current_tag = NULL;
var $last_depth_closed = 0;
var $xml_doc_type = '';
// PHP 4
function SSLiveAPI($domain, $protocol='http') {
$this->__construct($domain, $protocol);
}
function __construct($domain, $protocol='http') {
$this->domain = $domain;
$this->protocol = $protocol;
}
function __destruct() {
}
// PUBLIC
function SetDomain($domain) {
$this->domain = $domain;
}
function SetAPIKey($api_key) {
$this->auth['password'] = $api_key;
$this->auth['username'] = '';
$this->auth['type'] = 'api key';
$this->auth['token'] = '';
}
function SetUserCredentials($username, $password) {
$this->auth['password'] = $password;
$this->auth['username'] = $username;
$this->auth['type'] = 'username/password';
$this->auth['token'] = '';
}
function CleanseID($id) {
if (!empty($id)) {
if (!preg_match('/^[a-zA-Z][a-zA-Z0-9_\-]+$/', $id))
return abs(intval($id));
else
return $id;
} else {
return '';
}
}
function GetSpaces() {
// Example URL: http://example.screensteps.com/spaces
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/'), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'spaces');
} else {
return NULL;
}
}
function GetSpace($space_id) {
// Example URL: http://example.screensteps.com/spaces/id
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/'. $space_id), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'space');
} else {
return NULL;
}
}
function SearchSpace($space_id, $search_term, $params) {
// Example URL: http://example.screensteps.com/spaces/id/searches?text=SEARCH_TERM
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/'. $space_id .
'/searches?text=' . urlencode($search_term), $params), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'lessons');
} else {
return NULL;
}
}
function GetLessonsWithTagInSpace($space_id, $tag, $params) {
// Example URL: http://example.screensteps.com/spaces/ID/tags?tag=TAG
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/tags?tag=' . urlencode($tag), $params), $data);
print $data;
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'lessons');
} else {
return NULL;
}
}
function GetManual($space_id, $manual_id) {
// Example URL: http://example.screensteps.com/spaces/ID/manuals/ID
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/manuals/'. $manual_id), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'manual');
} else {
return NULL;
}
}
function SearchManual($space_id, $manual_id, $search_term, $params) {
// Example URL: http://example.screensteps.com/spaces/ID/manuals/ID/searches?text=SEARCH_TERM
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id .
'/manuals/'. $manual_id . '/searches?text=' . urlencode($search_term)), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'lessons');
} else {
return NULL;
}
}
function GetBucket($space_id, $bucket_id, $params) {
// Example URL: http://example.screensteps.com/spaces/ID/buckets/ID
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/buckets/'. $bucket_id, $params), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'bucket');
} else {
return NULL;
}
}
function SearchBucket($space_id, $bucket_id, $search_term, $params) {
// Example URL: http://example.screensteps.com/spaces/ID/buckets/ID/searches?text=SEARCH_TERM
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id .
'/buckets/'. $bucket_id . '/searches?text=' . urlencode($search_term), $params), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'lessons');
} else {
return NULL;
}
}
function GetLessonsWithTagInBucket($space_id, $bucket_id, $tag, $params) {
// Example URL: http://example.screensteps.com/spaces/ID/buckets/ID/tags?tag=TAG
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id .
'/buckets/'. $bucket_id . '/tags?tag=' . urlencode($tag), $params), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'tag');
} else {
return NULL;
}
}
function GetManualLesson($space_id, $manual_id, $lesson_id) {
// Example URL: http://example.screensteps.com/spaces/ID/manuals/ID/lessons/ID
$data = '';
$lesson_id = intval($lesson_id);
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/manuals/'. $manual_id . '/lessons/' . $lesson_id), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'lesson');
} else {
return NULL;
}
}
function GetLessonsWithTagInManual($space_id, $manual_id, $tag, $params) {
// Example URL: http://example.screensteps.com/spaces/ID/manuals/ID/tags?tag=TAG
$data = '';
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id .
'/manuals/'. $manual_id . '/tags?tag=' . urlencode($tag)), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'tag');
} else {
return NULL;
}
}
function GetManualPDFURL($space_id, $manual_id) {
// Example URL: http://example.screensteps.com/spaces/ID/manuals/ID/pdf
$data = '';
/*
<?xml version="1.0" encoding="UTF-8"?> <url>http://s3.amazonaws.com/screensteps_dev/step_images/bmls/2380/Creating_a_Lesson.pdf?AWSAccessKeyId=19JMR1FABXNXQR79AGG2&Expires=1254933484&Signature=raqKFFhbp02cQd2kd8RQo0v51g4%3D</url>
*/
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/manuals/'. $manual_id . '/pdf'), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'url');
} else {
return NULL;
}
}
function GetManualLessonPDFURL($space_id, $manual_id, $lesson_id) {
// Example URL: http://example.screensteps.com/spaces/ID/manuals/ID/lessons/ID/pdf
$data = '';
/*
<?xml version="1.0" encoding="UTF-8"?> <url>http://s3.amazonaws.com/screensteps_dev/step_images/bmls/2380/Creating_a_Lesson.pdf?AWSAccessKeyId=19JMR1FABXNXQR79AGG2&Expires=1254933484&Signature=raqKFFhbp02cQd2kd8RQo0v51g4%3D</url>
*/
$lesson_id = intval($lesson_id);
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/manuals/'. $manual_id . '/lessons/' . $lesson_id . '/pdf'), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'url');
} else {
return NULL;
}
}
function GetBucketLesson($space_id, $bucket_id, $lesson_id) {
// Example URL: http://example.screensteps.com/spaces/ID/buckets/ID/lessons/ID
$data = '';
$lesson_id = intval($lesson_id);
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/buckets/'. $bucket_id . '/lessons/' . $lesson_id), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'lesson');
} else {
return NULL;
}
}
function GetBucketLessonPDFURL($space_id, $bucket_id, $lesson_id) {
// Example URL: http://example.screensteps.com/spaces/ID/buckets/ID/lessons/ID/pdf
$data = '';
$lesson_id = intval($lesson_id);
$this->last_error = $this->requestURLData($this->getCompleteURL('/spaces/' . $space_id . '/buckets/'. $bucket_id . '/lessons/' . $lesson_id . '/pdf'), $data);
if ($this->last_error == '') {
if ($this->use_simplexml)
return simplexml_load_string($data);
else
return $this->XMLToArray($data, 'url');
} else {
return NULL;
}
}
// Returns array of error strings (0 indexed)
function SubmitLessonComment($space_id, $resource_type, $resource_id, $lesson_id, $name, $email, $comment, $subscribe) {
/*
/comments/
:lesson_id
:comment => {:comment, :email, :name, :space_id, :manual_id, :bucket_id}
*/
$errors[1] = array();
$url = $this->getCompleteURL('/spaces/' . $space_id . '/comments/?lesson_id=' . $lesson_id);
$header = $this->getSSLiveHeader($url, "multipart/form-data");
//print_r($header);
$resource_key = (strtolower($resource_type) == 'manual') ? 'manual_id' : 'bucket_id';
$fields = array (
'lesson_id'=>$lesson_id,
'comment[comment]'=>$comment,
'comment[name]'=>$name,
'comment[email]'=>$email,
'comment[subscribe]'=>$subscribe,
'comment[' . $resource_key . ']'=>$resource_id
);
//print $fields_string;
// Configure CURL
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); // follow redirects
//curl_setopt($curl, CURLOPT_AUTOREFERER, true); //
//curl_setopt($curl, CURLOPT_MAXREDIRS, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $fields);
// Set header and post data
curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
$data = curl_exec($curl);
$error = curl_error($curl);
$returned_header = curl_getinfo( $curl );
curl_close($curl);
//print_r($returned_header);
//print $data;
// Check for errors
if ($returned_header['http_code'] != 200) {
preg_match_all('/\<error\>(.*?)\<\/error\>/', $data, $errors);
// $error[1] is array of error message matches
/*
<errors>
<error>Name can't be blank</error>
<error>Email can't be blank</error>
<error>Email is too short (minimum is 3 characters)</error>
<error>Email should look like an email address.</error>
</errors>
*/
}
return $errors[1];
}
// PRIVATE
function getCompleteURL($request, $params=array()) {
$url = $this->protocol . '://' . $this->domain . $request;
if (is_array($params) && count($params) > 0) {
$string = '';
foreach ($params as $key=>$value) {
$string .= urlencode($key) . '=' . urlencode($value) . '&';
}
$string = substr($string, 0, -1);
if (strstr($url, '?') !== FALSE) {
$url .= '&' . $string;
} else {
$url .= '?' . $string;
}
}
//print $url;
return $url;
}
function getSSLiveHeader($url, $contentType='application/xml') {
$header = '';
$parsed_url = parse_url($url);
$path_query = $parsed_url['path'];
if (!empty($parsed_url['query'])) {
$path_query .= '?' . $parsed_url['query'];
if (!empty($parsed_url['fragment'])) {
$path_query .= '#' . $parsed_url['fragment'];
}
}
$httpDate = gmdate("D, d M Y H:i:s T");
## Build authentication header based on auth type
$header[] = "Content-Type: " . $contentType;
$header[] = "Accept: application/xml";
$header[] = "Date: " . $httpDate;
if ($this->auth['type'] == 'api key' ) {
$header[] = "Authorization: ScreenStepsLiveAPI auth=" . $this->encode($this->domain . ':' . $path_query . ':' . $httpDate);
} elseif (!empty($this->auth['username'])) {
$header[] = "Authorization: Basic " . base64_encode($this->auth['username'] . ':' . $this->auth['password']);
}
return $header;
}
function requestURLData($url, &$data) {
$error = '';
if ($error == '')
{
$header = $this->getSSLiveHeader($url);
// Configure CURL
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); // follow redirects
curl_setopt($curl, CURLOPT_AUTOREFERER, true); //
curl_setopt($curl, CURLOPT_MAXREDIRS, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
// Set header and get data
curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
$data = curl_exec($curl);
$error = curl_error($curl);
$returned_header = curl_getinfo( $curl );
curl_close($curl);
// print_r($returned_header);
// Check for errors
if ($this->auth['type'] == 'api key')
{
if ($returned_header['http_code'] != 200)
{
if (strcmp($data, "<status>Unauthorized</status>") == 0) $error = 'invalid authentication';
elseif (strcmp($data, "<status>Expired</status>") == 0) $error = 'expired authentication';
else $error = 'unknown authentication error';
}
} else {
switch ($returned_header['http_code'])
{
case 200:
break;
case 500:
$error = 'internal server error';
break;
case 404:
$error = 'resource not found';
break;
default:
$error = 'bad authentication';
}
}
}
return $error;
}
function encode($data) {
$hasher =& new Crypt_HMAC($this->auth['password'], "sha1");
$digest = $hasher->hash($data);
// hash_mac isn't installed on two systems I tried so we use PEAR library
// $digest = hash_mac("sha1", $data, $this->api_key, true);
return base64_encode(pack('H*', $digest));
}
// No SimpleXML in PHP 4...
function XMLToArray($data, $type) {
//print_r ($data);
// Create an configure
$parser = xml_parser_create('UTF-8');
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_set_object($parser, $this);
// Register callbacks
xml_set_element_handler($parser, 'tag_open', 'tag_close');
xml_set_character_data_handler($parser, 'character_data');
// Initialize variables
$array = array();
$this->xml_node_arrays = array();
$this->xml_current_tag = array();
$this->xml_depth = -1;
$this->last_depth_closed = -1;
$this->xml_doc_type = $type;
// Parse XML
xml_parse($parser, $data, TRUE);
xml_parser_free($parser);
// Now point array that is returned at the proper dimension of the array.
if (isset($this->xml_node_arrays[0]))
{
switch ($type) {
case 'spaces':
$array = is_array($this->xml_node_arrays[0]['spaces']) ? $this->xml_node_arrays[0]['spaces'] : Array();
break;
case 'space':
$array = is_array($this->xml_node_arrays[0]['space']) ? $this->xml_node_arrays[0]['space'] : Array();
break;
case 'manual':
$array = is_array($this->xml_node_arrays[0]['manual']) ? $this->xml_node_arrays[0]['manual'] : Array();
break;
case 'bucket':
$array = is_array($this->xml_node_arrays[0]['bucket']) ? $this->xml_node_arrays[0]['bucket'] : Array();
break;
case 'lesson':
$array = is_array($this->xml_node_arrays[0]['lesson']) ? $this->xml_node_arrays[0]['lesson'] : Array();
break;
case 'lessons':
$array = is_array($this->xml_node_arrays[0]['lessons']) ? $this->xml_node_arrays[0]['lessons'] : Array();
break;
case 'url':
$array = $this->xml_node_arrays[0]['url'];
break;
case 'tag':
$array = is_array($this->xml_node_arrays[0]['tag']) ? $this->xml_node_arrays[0]['tag'] : Array();
break;
}
}
// cleanup
$this->xml_node_arrays = NULL;
$this->xml_current_tag = NULL;
$this->xml_doc_type = '';
//print_r($array);
return $array;
}
function tag_open($parser, $tagName, $attributes)
{
$this->xml_depth++;
$this->xml_current_tag[$this->xml_depth] = $tagName;
}
function tag_close($parser, $tagName)
{
//print '$tagName: ' . $tagName . "\n";
if ($this->last_depth_closed >= 0 && $this->xml_depth < $this->last_depth_closed) {
// Closing level. Store array.
$parentTagName = $this->xml_current_tag[$this->xml_depth];
$storeAsArrayIndex = TRUE;
// Determine which nodes are stored as indexes and which are stored as simple keyed arrays.
// print '$this->xml_doc_type: ' . $this->xml_doc_type . "\n";
// print '$parentTagName: ' . $parentTagName . "\n";
switch ($this->xml_doc_type) {
case 'spaces':
switch ($parentTagName) {
case 'spaces':
$storeAsArrayIndex = FALSE;
break;
}
break;
case 'space':
switch ($parentTagName) {
case 'space':
case 'assets':
$storeAsArrayIndex = FALSE;
break;
}
break;
case 'manual':
switch ($parentTagName) {
case 'manual':
case 'space':
case 'chapters':
case 'lessons':
case 'tags':
$storeAsArrayIndex = FALSE;
break;
}
break;
case 'bucket':
switch ($parentTagName) {
case 'bucket':
case 'space':
case 'lessons':
case 'tags':
$storeAsArrayIndex = FALSE;
break;
}
break;
case 'lesson':
switch ($parentTagName) {
case 'lesson':
case 'manual':
case 'bucket':
case 'chapter':
case 'space':
case 'steps':
case 'comments':
case 'next_lesson':
case 'previous_lesson':
case 'tags':
$storeAsArrayIndex = FALSE;
break;
}
break;
case 'tag':
switch ($parentTagName) {
case 'tag':
case 'manual':
case 'bucket':
case 'space':
case 'lessons':
$storeAsArrayIndex = FALSE;
break;
}
break;
case 'lessons':
switch ($parentTagName) {
case 'lessons':
case 'asset':
case 'tag':
$storeAsArrayIndex = FALSE;
break;
}
break;
}
// Store array one level up in parent
if ($storeAsArrayIndex === TRUE)
$this->xml_node_arrays[$this->xml_depth][$parentTagName][] = $this->xml_node_arrays[$this->xml_depth + 1];
else
$this->xml_node_arrays[$this->xml_depth][$parentTagName] = $this->xml_node_arrays[$this->xml_depth + 1];
// Reset array for previous level
$this->xml_node_arrays[$this->xml_depth + 1] = array();
}
else
{
// Make sure node exists for tag. Empty nodes won't call character_data
if (!isset($this->xml_node_arrays[$this->xml_depth][$tagName])) {
//print "not set: " . $tagName . "\n";
$this->xml_node_arrays[$this->xml_depth][$tagName] = '';
}
}
$this->last_depth_closed = $this->xml_depth;
$this->xml_current_tag[$this->xml_depth] = '';
$this->xml_depth--;
}
// Stores text of current node
function character_data($parser, $string) {
//print 'tag name: ' . $this->xml_current_tag[$this->xml_depth] . "\n";
if (trim($string) != '') {
$tagName = $this->xml_current_tag[$this->xml_depth];
// Avoid 'notices' by defining elements
if (!isset($this->xml_node_arrays[$this->xml_depth])) $this->xml_node_arrays[$this->xml_depth] = array();
if (!isset($this->xml_node_arrays[$this->xml_depth][$tagName])) $this->xml_node_arrays[$this->xml_depth][$tagName] = '';
$this->xml_node_arrays[$this->xml_depth][$tagName] .= $string;
}
}
}
?>