Ameba blog post

gistfile1.aw

<?php
date_default_timezone_set('Asia/Tokyo');
require_once('Zend/Uri.php');
require_once('Zend/Http/Client.php');

$wsse = new AmebaWsse('USER', 'PASS');

// API の URI を取得
$uris = getAmebaApiUris($wsse);

// 新しいエントリをポスト
if(!isset($uris['service.post'])) {
    die('$uris["service.post"] not found');
}
postNewEntry(
    $uris['service.post'],
    $wsse,
    '件名',
    '<a href="http://twitter.com/#!/fetus_hina">本文</a>');

function getAmebaApiUris(AmebaWsse $wsse) {
    $client = new Zend_Http_Client();
    $resp =
        $client
            ->setUri('http://atomblog.ameba.jp/servlet/_atom/blog')
            ->setHeaders('X-WSSE', $wsse->generate())
            ->request(Zend_Http_Client::GET);
    if(!$resp->isSuccessful()) {
        throw new Exception(__FUNCTION__ . ': Request failed');
    }
    $document = new DOMDocument();
    $document->preserveWhiteSpace = false;
    if(!@$document->loadXML($resp->getBody())) {
        throw new Exception(__FUNCTION__ . ': XML Parse failed');
    }
    $xpath = new DOMXpath($document);
    $xpath->registerNamespace('n', 'http://purl.org/atom/ns#');
    $links = $xpath->query('//n:link');
    if($links->length < 1) {
        throw new Exception(__FUNCTION__ . ': link node not found');
    }
    $result = array();
    foreach($links as $link) {
        if(!$link->hasAttribute('rel') || !$link->hasAttribute('href')) {
            continue;
        }
        $rel  = Normalizer::normalize($link->getAttribute('rel'));
        $href = Normalizer::normalize($link->getAttribute('href'));
        if(isset($result[$rel])) {
            trigger_error(
                __FUNCTION__ . ': rel "' . $rel . '" already defined',
                E_USER_WARNING);
            continue;
        }
        try {
            $result[$rel] = Zend_Uri::factory($href);
        } catch(Zend_Uri_Exception $e) {
            trigger_error(
                __FUNCTION__ . ': url "' . $href . '" looks invalid: ' . $e->getMessage(),
                E_USER_WARNING);
            continue;
        }
    }
    return $result;
}

function postNewEntry(Zend_Uri $api_uri, AmebaWsse $wsse, $subject, $content) {
    $client = new Zend_Http_Client();
    $resp =
        $client
            ->setUri($api_uri)
            ->setHeaders('X-WSSE', $wsse->generate())
            ->setRawData(createEntryXml($subject, $content), 'application/x.atom+xml')
            ->request(Zend_Http_Client::POST);
    if(!$resp->isSuccessful()) {
        throw new Exception(__FUNCTION__ . ': Request failed');
    }
    return true;
}

function createEntryXml($subject, $content) {
    $doc = new DOMDocument('1.0', 'UTF-8');
    $doc->formatOutput = true;
    $n_entry = $doc->appendChild($doc->createElementNS('http://purl.org/atom/ns#', 'entry'));
    $n_title = $n_entry->appendChild($doc->createElement('title'));
    $n_content = $n_entry->appendChild($doc->createElement('content'));

    $n_title->appendChild($doc->createTextNode($subject));
    $n_content->appendChild($doc->createCDATASection($content));

    return $doc->saveXml();
}

class AmebaWsse {
    private $user_name, $password;

    public function __construct($user_name, $password) {
        $this->user_name = $user_name;
        $this->password = $password;
    }

    public function generate() {
        $nonce = bin2hex(file_get_contents('/dev/urandom', false, null, 0, 20));
        $created = gmdate('Y-m-d\TH:i:s\Z', time());
        $digest = hash('sha1', $nonce . $created . hash('md5', $this->password), true);
        $wsse =
            sprintf(
                'UsernameToken Username="%s", PasswordDigest="%s", Nonce="%s", Created="%s"',
                $this->user_name,
                base64_encode($digest),
                base64_encode($nonce),
                $created);
        return $wsse;
    }
}