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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Service
* @subpackage Technorati
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Technorati.php 16211 2009-06-21 19:23:55Z thomas $
*/
/**
* Zend_Service_Technorati provides an easy, intuitive and object-oriented interface
* for using the Technorati API.
*
* It provides access to all available Technorati API queries
* and returns the original XML response as a friendly PHP object.
*
* @category Zend
* @package Zend_Service
* @subpackage Technorati
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Service_Technorati
{
/** Base Technorati API URI */
const API_URI_BASE = 'http://api.technorati.com';
/** Query paths */
const API_PATH_COSMOS = '/cosmos';
const API_PATH_SEARCH = '/search';
const API_PATH_TAG = '/tag';
const API_PATH_DAILYCOUNTS = '/dailycounts';
const API_PATH_TOPTAGS = '/toptags';
const API_PATH_BLOGINFO = '/bloginfo';
const API_PATH_BLOGPOSTTAGS = '/blogposttags';
const API_PATH_GETINFO = '/getinfo';
const API_PATH_KEYINFO = '/keyinfo';
/** Prevent magic numbers */
const PARAM_LIMIT_MIN_VALUE = 1;
const PARAM_LIMIT_MAX_VALUE = 100;
const PARAM_DAYS_MIN_VALUE = 1;
const PARAM_DAYS_MAX_VALUE = 180;
const PARAM_START_MIN_VALUE = 1;
/**
* Technorati API key
*
* @var string
* @access protected
*/
protected $_apiKey;
/**
* Zend_Rest_Client instance
*
* @var Zend_Rest_Client
* @access protected
*/
protected $_restClient;
/**
* Constructs a new Zend_Service_Technorati instance
* and setup character encoding.
*
* @param string $apiKey Your Technorati API key
*/
public function __construct($apiKey)
{
iconv_set_encoding('output_encoding', 'UTF-8');
iconv_set_encoding('input_encoding', 'UTF-8');
iconv_set_encoding('internal_encoding', 'UTF-8');
$this->_apiKey = $apiKey;
}
/**
* Cosmos query lets you see what blogs are linking to a given URL.
*
* On the Technorati site, you can enter a URL in the searchbox and
* it will return a list of blogs linking to it.
* The API version allows more features and gives you a way
* to use the cosmos on your own site.
*
* Query options include:
*
* 'type' => (link|weblog)
* optional - A value of link returns the freshest links referencing your target URL.
* A value of weblog returns the last set of unique weblogs referencing your target URL.
* 'limit' => (int)
* optional - adjust the size of your result from the default value of 20
* to between 1 and 100 results.
* 'start' => (int)
* optional - adjust the range of your result set.
* Set this number to larger than zero and you will receive
* the portion of Technorati's total result set ranging from start to start+limit.
* The default start value is 1.
* 'current' => (true|false)
* optional - the default setting of true
* Technorati returns links that are currently on a weblog's homepage.
* Set this parameter to false if you would like to receive all links
* to the given URL regardless of their current placement on the source blog.
* Internally the value is converted in (yes|no).
* 'claim' => (true|false)
* optional - the default setting of FALSE returns no user information
* about each weblog included in the result set when available.
* Set this parameter to FALSE to include Technorati member data
* in the result set when a weblog in your result set
* has been successfully claimed by a member of Technorati.
* Internally the value is converted in (int).
* 'highlight' => (true|false)
* optional - the default setting of TRUE
* highlights the citation of the given URL within the weblog excerpt.
* Set this parameter to FALSE to apply no special markup to the blog excerpt.
* Internally the value is converted in (int).
*
* @param string $url the URL you are searching for. Prefixes http:// and www. are optional.
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_CosmosResultSet
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/cosmos.html Technorati API: Cosmos Query reference
*/
public function cosmos($url, $options = null)
{
static $defaultOptions = array( 'type' => 'link',
'start' => 1,
'limit' => 20,
'current' => 'yes',
'format' => 'xml',
'claim' => 0,
'highlight' => 1,
);
$options['url'] = $url;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateCosmos($options);
$response = $this->_makeRequest(self::API_PATH_COSMOS, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_CosmosResultSet
*/
require_once 'Zend/Service/Technorati/CosmosResultSet.php';
return new Zend_Service_Technorati_CosmosResultSet($dom, $options);
}
/**
* Search lets you see what blogs contain a given search string.
*
* Query options include:
*
* 'language' => (string)
* optional - a ISO 639-1 two character language code
* to retrieve results specific to that language.
* This feature is currently beta and may not work for all languages.
* 'authority' => (n|a1|a4|a7)
* optional - filter results to those from blogs with at least
* the Technorati Authority specified.
* Technorati calculates a blog's authority by how many people link to it.
* Filtering by authority is a good way to refine your search results.
* There are four settings:
* - n => Any authority: All results.
* - a1 => A little authority: Results from blogs with at least one link.
* - a4 => Some authority: Results from blogs with a handful of links.
* - a7 => A lot of authority: Results from blogs with hundreds of links.
* 'limit' => (int)
* optional - adjust the size of your result from the default value of 20
* to between 1 and 100 results.
* 'start' => (int)
* optional - adjust the range of your result set.
* Set this number to larger than zero and you will receive
* the portion of Technorati's total result set ranging from start to start+limit.
* The default start value is 1.
* 'claim' => (true|false)
* optional - the default setting of FALSE returns no user information
* about each weblog included in the result set when available.
* Set this parameter to FALSE to include Technorati member data
* in the result set when a weblog in your result set
* has been successfully claimed by a member of Technorati.
* Internally the value is converted in (int).
*
* @param string $query the words you are searching for.
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_SearchResultSet
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/search.html Technorati API: Search Query reference
*/
public function search($query, $options = null)
{
static $defaultOptions = array( 'start' => 1,
'limit' => 20,
'format' => 'xml',
'claim' => 0);
$options['query'] = $query;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateSearch($options);
$response = $this->_makeRequest(self::API_PATH_SEARCH, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_SearchResultSet
*/
require_once 'Zend/Service/Technorati/SearchResultSet.php';
return new Zend_Service_Technorati_SearchResultSet($dom, $options);
}
/**
* Tag lets you see what posts are associated with a given tag.
*
* Query options include:
*
* 'limit' => (int)
* optional - adjust the size of your result from the default value of 20
* to between 1 and 100 results.
* 'start' => (int)
* optional - adjust the range of your result set.
* Set this number to larger than zero and you will receive
* the portion of Technorati's total result set ranging from start to start+limit.
* The default start value is 1.
* 'excerptsize' => (int)
* optional - number of word characters to include in the post excerpts.
* By default 100 word characters are returned.
* 'topexcerptsize' => (int)
* optional - number of word characters to include in the first post excerpt.
* By default 150 word characters are returned.
*
* @param string $tag the tag term you are searching posts for.
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_TagResultSet
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/tag.html Technorati API: Tag Query reference
*/
public function tag($tag, $options = null)
{
static $defaultOptions = array( 'start' => 1,
'limit' => 20,
'format' => 'xml',
'excerptsize' => 100,
'topexcerptsize' => 150);
$options['tag'] = $tag;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateTag($options);
$response = $this->_makeRequest(self::API_PATH_TAG, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_TagResultSet
*/
require_once 'Zend/Service/Technorati/TagResultSet.php';
return new Zend_Service_Technorati_TagResultSet($dom, $options);
}
/**
* TopTags provides daily counts of posts containing the queried keyword.
*
* Query options include:
*
* 'days' => (int)
* optional - Used to specify the number of days in the past
* to request daily count data for.
* Can be any integer between 1 and 180, default is 180
*
* @param string $q the keyword query
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_DailyCountsResultSet
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/dailycounts.html Technorati API: DailyCounts Query reference
*/
public function dailyCounts($query, $options = null)
{
static $defaultOptions = array( 'days' => 180,
'format' => 'xml'
);
$options['q'] = $query;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateDailyCounts($options);
$response = $this->_makeRequest(self::API_PATH_DAILYCOUNTS, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_DailyCountsResultSet
*/
require_once 'Zend/Service/Technorati/DailyCountsResultSet.php';
return new Zend_Service_Technorati_DailyCountsResultSet($dom);
}
/**
* TopTags provides information on top tags indexed by Technorati.
*
* Query options include:
*
* 'limit' => (int)
* optional - adjust the size of your result from the default value of 20
* to between 1 and 100 results.
* 'start' => (int)
* optional - adjust the range of your result set.
* Set this number to larger than zero and you will receive
* the portion of Technorati's total result set ranging from start to start+limit.
* The default start value is 1.
*
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_TagsResultSet
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/toptags.html Technorati API: TopTags Query reference
*/
public function topTags($options = null)
{
static $defaultOptions = array( 'start' => 1,
'limit' => 20,
'format' => 'xml'
);
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateTopTags($options);
$response = $this->_makeRequest(self::API_PATH_TOPTAGS, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_TagsResultSet
*/
require_once 'Zend/Service/Technorati/TagsResultSet.php';
return new Zend_Service_Technorati_TagsResultSet($dom);
}
/**
* BlogInfo provides information on what blog, if any, is associated with a given URL.
*
* @param string $url the URL you are searching for. Prefixes http:// and www. are optional.
* The URL must be recognized by Technorati as a blog.
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_BlogInfoResult
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/bloginfo.html Technorati API: BlogInfo Query reference
*/
public function blogInfo($url, $options = null)
{
static $defaultOptions = array( 'format' => 'xml'
);
$options['url'] = $url;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateBlogInfo($options);
$response = $this->_makeRequest(self::API_PATH_BLOGINFO, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_BlogInfoResult
*/
require_once 'Zend/Service/Technorati/BlogInfoResult.php';
return new Zend_Service_Technorati_BlogInfoResult($dom);
}
/**
* BlogPostTags provides information on the top tags used by a specific blog.
*
* Query options include:
*
* 'limit' => (int)
* optional - adjust the size of your result from the default value of 20
* to between 1 and 100 results.
* 'start' => (int)
* optional - adjust the range of your result set.
* Set this number to larger than zero and you will receive
* the portion of Technorati's total result set ranging from start to start+limit.
* The default start value is 1.
* Note. This property is not documented.
*
* @param string $url the URL you are searching for. Prefixes http:// and www. are optional.
* The URL must be recognized by Technorati as a blog.
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_TagsResultSet
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/blogposttags.html Technorati API: BlogPostTags Query reference
*/
public function blogPostTags($url, $options = null)
{
static $defaultOptions = array( 'start' => 1,
'limit' => 20,
'format' => 'xml'
);
$options['url'] = $url;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateBlogPostTags($options);
$response = $this->_makeRequest(self::API_PATH_BLOGPOSTTAGS, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_TagsResultSet
*/
require_once 'Zend/Service/Technorati/TagsResultSet.php';
return new Zend_Service_Technorati_TagsResultSet($dom);
}
/**
* GetInfo query tells you things that Technorati knows about a member.
*
* The returned info is broken up into two sections:
* The first part describes some information that the user wants
* to allow people to know about him- or herself.
* The second part of the document is a listing of the weblogs
* that the user has successfully claimed and the information
* that Technorati knows about these weblogs.
*
* @param string $username the Technorati user name you are searching for
* @param array $options additional parameters to refine your query
* @return Zend_Service_Technorati_GetInfoResult
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/getinfo.html Technorati API: GetInfo reference
*/
public function getInfo($username, $options = null)
{
static $defaultOptions = array('format' => 'xml');
$options['username'] = $username;
$options = $this->_prepareOptions($options, $defaultOptions);
$this->_validateGetInfo($options);
$response = $this->_makeRequest(self::API_PATH_GETINFO, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_GetInfoResult
*/
require_once 'Zend/Service/Technorati/GetInfoResult.php';
return new Zend_Service_Technorati_GetInfoResult($dom);
}
/**
* KeyInfo query provides information on daily usage of an API key.
* Key Info Queries do not count against a key's daily query limit.
*
* A day is defined as 00:00-23:59 Pacific time.
*
* @return Zend_Service_Technorati_KeyInfoResult
* @throws Zend_Service_Technorati_Exception
* @link http://developers.technorati.com/wiki/KeyInfo Technorati API: Key Info reference
*/
public function keyInfo()
{
static $defaultOptions = array();
$options = $this->_prepareOptions(array(), $defaultOptions);
// you don't need to validate this request
// because key is the only mandatory element
// and it's already set in #_prepareOptions
$response = $this->_makeRequest(self::API_PATH_KEYINFO, $options);
$dom = $this->_convertResponseAndCheckContent($response);
/**
* @see Zend_Service_Technorati_KeyInfoResult
*/
require_once 'Zend/Service/Technorati/KeyInfoResult.php';
return new Zend_Service_Technorati_KeyInfoResult($dom, $this->_apiKey);
}
/**
* Returns Technorati API key.
*
* @return string Technorati API key
*/
public function getApiKey()
{
return $this->_apiKey;
}
/**
* Returns a reference to the REST client object in use.
*
* If the reference hasn't being inizialized yet,
* then a new Zend_Rest_Client instance is created.
*
* @return Zend_Rest_Client
*/
public function getRestClient()
{
if ($this->_restClient === null) {
/**
* @see Zend_Rest_Client
*/
require_once 'Zend/Rest/Client.php';
$this->_restClient = new Zend_Rest_Client(self::API_URI_BASE);
}
return $this->_restClient;
}
/**
* Sets Technorati API key.
*
* Be aware that this function doesn't validate the key.
* The key is validated as soon as the first API request is sent.
* If the key is invalid, the API request method will throw
* a Zend_Service_Technorati_Exception exception with Invalid Key message.
*
* @param string $key Technorati API Key
* @return void
* @link http://technorati.com/developers/apikey.html How to get your Technorati API Key
*/
public function setApiKey($key)
{
$this->_apiKey = $key;
return $this;
}
/**
* Validates Cosmos query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateCosmos(array $options)
{
static $validOptions = array('key', 'url',
'type', 'limit', 'start', 'current', 'claim', 'highlight', 'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate url (required)
$this->_validateOptionUrl($options);
// Validate limit (optional)
$this->_validateOptionLimit($options);
// Validate start (optional)
$this->_validateOptionStart($options);
// Validate format (optional)
$this->_validateOptionFormat($options);
// Validate type (optional)
$this->_validateInArrayOption('type', $options, array('link', 'weblog'));
// Validate claim (optional)
$this->_validateOptionClaim($options);
// Validate highlight (optional)
$this->_validateIntegerOption('highlight', $options);
// Validate current (optional)
if (isset($options['current'])) {
$tmp = (int) $options['current'];
$options['current'] = $tmp ? 'yes' : 'no';
}
}
/**
* Validates Search query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateSearch(array $options)
{
static $validOptions = array('key', 'query',
'language', 'authority', 'limit', 'start', 'claim', 'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate query (required)
$this->_validateMandatoryOption('query', $options);
// Validate authority (optional)
$this->_validateInArrayOption('authority', $options, array('n', 'a1', 'a4', 'a7'));
// Validate limit (optional)
$this->_validateOptionLimit($options);
// Validate start (optional)
$this->_validateOptionStart($options);
// Validate claim (optional)
$this->_validateOptionClaim($options);
// Validate format (optional)
$this->_validateOptionFormat($options);
}
/**
* Validates Tag query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateTag(array $options)
{
static $validOptions = array('key', 'tag',
'limit', 'start', 'excerptsize', 'topexcerptsize', 'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate query (required)
$this->_validateMandatoryOption('tag', $options);
// Validate limit (optional)
$this->_validateOptionLimit($options);
// Validate start (optional)
$this->_validateOptionStart($options);
// Validate excerptsize (optional)
$this->_validateIntegerOption('excerptsize', $options);
// Validate excerptsize (optional)
$this->_validateIntegerOption('topexcerptsize', $options);
// Validate format (optional)
$this->_validateOptionFormat($options);
}
/**
* Validates DailyCounts query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateDailyCounts(array $options)
{
static $validOptions = array('key', 'q',
'days', 'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate q (required)
$this->_validateMandatoryOption('q', $options);
// Validate format (optional)
$this->_validateOptionFormat($options);
// Validate days (optional)
if (isset($options['days'])) {
$options['days'] = (int) $options['days'];
if ($options['days'] < self::PARAM_DAYS_MIN_VALUE ||
$options['days'] > self::PARAM_DAYS_MAX_VALUE) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"Invalid value '" . $options['days'] . "' for 'days' option");
}
}
}
/**
* Validates GetInfo query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateGetInfo(array $options)
{
static $validOptions = array('key', 'username',
'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate username (required)
$this->_validateMandatoryOption('username', $options);
// Validate format (optional)
$this->_validateOptionFormat($options);
}
/**
* Validates TopTags query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateTopTags(array $options)
{
static $validOptions = array('key',
'limit', 'start', 'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate limit (optional)
$this->_validateOptionLimit($options);
// Validate start (optional)
$this->_validateOptionStart($options);
// Validate format (optional)
$this->_validateOptionFormat($options);
}
/**
* Validates BlogInfo query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateBlogInfo(array $options)
{
static $validOptions = array('key', 'url',
'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate url (required)
$this->_validateOptionUrl($options);
// Validate format (optional)
$this->_validateOptionFormat($options);
}
/**
* Validates TopTags query options.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateBlogPostTags(array $options)
{
static $validOptions = array('key', 'url',
'limit', 'start', 'format');
// Validate keys in the $options array
$this->_compareOptions($options, $validOptions);
// Validate url (required)
$this->_validateOptionUrl($options);
// Validate limit (optional)
$this->_validateOptionLimit($options);
// Validate start (optional)
$this->_validateOptionStart($options);
// Validate format (optional)
$this->_validateOptionFormat($options);
}
/**
* Checks whether an option is in a given array.
*
* @param string $name option name
* @param array $options
* @param array $array array of valid options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateInArrayOption($name, $options, array $array)
{
if (isset($options[$name]) && !in_array($options[$name], $array)) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"Invalid value '{$options[$name]}' for '$name' option");
}
}
/**
* Checks whether mandatory $name option exists and it's valid.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _validateMandatoryOption($name, $options)
{
if (!isset($options[$name]) || !trim($options[$name])) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"Empty value for '$name' option");
}
}
/**
* Checks whether $name option is a valid integer and casts it.
*
* @param array $options
* @return void
* @access protected
*/
protected function _validateIntegerOption($name, $options)
{
if (isset($options[$name])) {
$options[$name] = (int) $options[$name];
}
}
/**
* Makes and HTTP GET request to given $path with $options.
* HTTP Response is first validated, then returned.
*
* @param string $path
* @param array $options
* @return Zend_Http_Response
* @throws Zend_Service_Technorati_Exception on failure
* @access protected
*/
protected function _makeRequest($path, $options = array())
{
$restClient = $this->getRestClient();
$restClient->getHttpClient()->resetParameters();
$response = $restClient->restGet($path, $options);
self::_checkResponse($response);
return $response;
}
/**
* Checks whether 'claim' option value is valid.
*
* @param array $options
* @return void
* @access protected
*/
protected function _validateOptionClaim(array $options)
{
$this->_validateIntegerOption('claim', $options);
}
/**
* Checks whether 'format' option value is valid.
* Be aware that Zend_Service_Technorati supports only XML as format value.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception if 'format' value != XML
* @access protected
*/
protected function _validateOptionFormat(array $options)
{
if (isset($options['format']) && $options['format'] != 'xml') {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"Invalid value '" . $options['format'] . "' for 'format' option. " .
"Zend_Service_Technorati supports only 'xml'");
}
}
/**
* Checks whether 'limit' option value is valid.
* Value must be an integer greater than PARAM_LIMIT_MIN_VALUE
* and lower than PARAM_LIMIT_MAX_VALUE.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception if 'limit' value is invalid
* @access protected
*/
protected function _validateOptionLimit(array $options)
{
if (!isset($options['limit'])) return;
$options['limit'] = (int) $options['limit'];
if ($options['limit'] < self::PARAM_LIMIT_MIN_VALUE ||
$options['limit'] > self::PARAM_LIMIT_MAX_VALUE) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"Invalid value '" . $options['limit'] . "' for 'limit' option");
}
}
/**
* Checks whether 'start' option value is valid.
* Value must be an integer greater than 0.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception if 'start' value is invalid
* @access protected
*/
protected function _validateOptionStart(array $options)
{
if (!isset($options['start'])) return;
$options['start'] = (int) $options['start'];
if ($options['start'] < self::PARAM_START_MIN_VALUE) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"Invalid value '" . $options['start'] . "' for 'start' option");
}
}
/**
* Checks whether 'url' option value exists and is valid.
* 'url' must be a valid HTTP(s) URL.
*
* @param array $options
* @return void
* @throws Zend_Service_Technorati_Exception if 'url' value is invalid
* @access protected
* @todo support for Zend_Uri_Http
*/
protected function _validateOptionUrl(array $options)
{
$this->_validateMandatoryOption('url', $options);
}
/**
* Checks XML response content for errors.
*
* @param DomDocument $dom the XML response as a DOM document
* @return void
* @throws Zend_Service_Technorati_Exception
* @link http://technorati.com/developers/api/error.html Technorati API: Error response
* @access protected
*/
protected static function _checkErrors(DomDocument $dom)
{
$xpath = new DOMXPath($dom);
$result = $xpath->query("/tapi/document/result/error");
if ($result->length >= 1) {
$error = $result->item(0)->nodeValue;
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception($error);
}
}
/**
* Converts $response body to a DOM object and checks it.
*
* @param Zend_Http_Response $response
* @return DOMDocument
* @throws Zend_Service_Technorati_Exception if response content contains an error message
* @access protected
*/
protected function _convertResponseAndCheckContent(Zend_Http_Response $response)
{
$dom = new DOMDocument();
$dom->loadXML($response->getBody());
self::_checkErrors($dom);
return $dom;
}
/**
* Checks ReST response for errors.
*
* @param Zend_Http_Response $response the ReST response
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected static function _checkResponse(Zend_Http_Response $response)
{
if ($response->isError()) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(sprintf(
'Invalid response status code (HTTP/%s %s %s)',
$response->getVersion(), $response->getStatus(), $response->getMessage()));
}
}
/**
* Checks whether user given options are valid.
*
* @param array $options user options
* @param array $validOptions valid options
* @return void
* @throws Zend_Service_Technorati_Exception
* @access protected
*/
protected function _compareOptions(array $options, array $validOptions)
{
$difference = array_diff(array_keys($options), $validOptions);
if ($difference) {
/**
* @see Zend_Service_Technorati_Exception
*/
require_once 'Zend/Service/Technorati/Exception.php';
throw new Zend_Service_Technorati_Exception(
"The following parameters are invalid: '" .
implode("', '", $difference) . "'");
}
}
/**
* Prepares options for the request
*
* @param array $options user options
* @param array $defaultOptions default options
* @return array Merged array of user and default/required options.
* @access protected
*/
protected function _prepareOptions($options, array $defaultOptions)
{
$options = (array) $options; // force cast to convert null to array()
$options['key'] = $this->_apiKey;
$options = array_merge($defaultOptions, $options);
return $options;
}
}
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