本文介绍如何在简单上传及分片上传中使用上传回调。

简单上传设置回调

以下代码用于在简单上传设置回调:

<?php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}

use OSS\OssClient;

// 阿里云主账号AccessKey拥有所有API的访问权限,风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维,请登录 https://ram.console.aliyun.com 创建RAM账号。
$accessKeyId = "<yourAccessKeyId>";
$accessKeySecret = "<yourAccessKeySecret>";
// Endpoint以杭州为例,其它Region请按实际情况填写。
$endpoint = "http://oss-cn-hangzhou.aliyuncs.com";
$bucket= "<yourBucketName>";
$object = "<yourObjectName>";

$ossClient = new OssClient($accessKeyId, $accessKeySecret, $endpoint);

// 上传文件时设置回调。
// callbackUrl为回调服务器地址,如http://oss-demo.aliyuncs.com:23450或http://127.0.0.1:9090。
//(可选)callbackHost为回调请求消息头中Host的值,即您的服务器配置Host的值。
$url =
    '{
        "callbackUrl":"<yourCallbackServerUrl>",
        "callbackHost":"<yourCallbackServerHost>",
        "callbackBody":"bucket=${bucket}&object=${object}&etag=${etag}&size=${size}&mimeType=${mimeType}&imageInfo.height=${imageInfo.height}&imageInfo.width=${imageInfo.width}&imageInfo.format=${imageInfo.format}&my_var1=${x:var1}&my_var2=${x:var2}",
        "callbackBodyType":"application/x-www-form-urlencoded"
    }';

// 设置发起回调请求的自定义参数,由Key和Value组成,Key必须以x:开始。
$var =
    '{
        "x:var1":"value1",
        "x:var2":"值2"
    }';
$options = array(OssClient::OSS_CALLBACK => $url,
    OssClient::OSS_CALLBACK_VAR => $var
);
$result = $ossClient->putObject($bucket, $object, file_get_contents(__FILE__), $options);
print_r($result['body']);
print_r($result['info']['http_code']);

分片上传设置回调

以下代码用于分片上传设置回调:

<?php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}
use OSS\OssClient;
use OSS\Core\OssException;
use OSS\Core\OssUtil;

// 阿里云主账号AccessKey拥有所有API的访问权限,风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维,请登录 https://ram.console.aliyun.com 创建RAM账号。
$accessKeyId = "<yourAccessKeyId>";
$accessKeySecret = "<yourAccessKeySecret>";
// Endpoint以杭州为例,其它Region请按实际情况填写。
$endpoint = "http://oss-cn-hangzhou.aliyuncs.com";
$bucket= "<yourBucketName>";
$object = "<yourObjectName>";
$uploadFile = "<yourLocalFile>";

/**
 *  步骤1:初始化一个分片上传事件,获取uploadId。
 */

$ossClient = new OssClient($accessKeyId, $accessKeySecret, $endpoint);
//返回uploadId,它是分片上传事件的唯一标识,您可以根据这个ID来发起相关的操作,如取消分片上传、查询分片上传等。
$uploadId = $ossClient->initiateMultipartUpload($bucket, $object);

print(__FUNCTION__ . ": initiateMultipartUpload OK" . "\n");
/*
 * 步骤2:上传分片。
 */
$partSize = 10 * 1024 * 1024;
$uploadFileSize = filesize($uploadFile);
$pieces = $ossClient->generateMultiuploadParts($uploadFileSize, $partSize);
$responseUploadPart = array();
$uploadPosition = 0;
$isCheckMd5 = true;
foreach ($pieces as $i => $piece) {
    $fromPos = $uploadPosition + (integer)$piece[$ossClient::OSS_SEEK_TO];
    $toPos = (integer)$piece[$ossClient::OSS_LENGTH] + $fromPos - 1;
    $upOptions = array(
        $ossClient::OSS_FILE_UPLOAD => $uploadFile,
        $ossClient::OSS_PART_NUM => ($i + 1),
        $ossClient::OSS_SEEK_TO => $fromPos,
        $ossClient::OSS_LENGTH => $toPos - $fromPos + 1,
        $ossClient::OSS_CHECK_MD5 => $isCheckMd5,
    );
    // MD5校验。
    if ($isCheckMd5) {
        $contentMd5 = OssUtil::getMd5SumForFile($uploadFile, $fromPos, $toPos);
        $upOptions[$ossClient::OSS_CONTENT_MD5] = $contentMd5;
    }
    try {
        // 上传分片。
        $responseUploadPart[] = $ossClient->uploadPart($bucket, $object, $uploadId, $upOptions);
    } catch(OssException $e) {
        printf(__FUNCTION__ . ": initiateMultipartUpload, uploadPart - part#{$i} FAILED\n");
        printf($e->getMessage() . "\n");
        return;
    }
    printf(__FUNCTION__ . ": initiateMultipartUpload, uploadPart - part#{$i} OK\n");
}
// $uploadParts是由每个分片的ETag和分片号(PartNumber)组成的数组。
$uploadParts = array();
foreach ($responseUploadPart as $i => $eTag) {
    $uploadParts[] = array(
        'PartNumber' => ($i + 1),
        'ETag' => $eTag,
    );
}

/**
 * 步骤3:完成上传。
 */
// callbackUrl为回调服务器地址,如http://oss-demo.aliyuncs.com:23450或http://127.0.0.1:9090。
//(可选)callbackHost为回调请求消息头中Host的值,即您的服务器配置Host的值。
$json =
    '{
        "callbackUrl":"<yourCallbackServerUrl>",
        "callbackHost":"<yourCallbackServerHost>",
        "callbackBody":"{\"mimeType\":${mimeType},\"size\":${size},\"x:var1\":${x:var1},\"x:var2\":${x:var2}}",
        "callbackBodyType":"application/json"
    }';

// 设置发起回调请求的自定义参数,由Key和Value组成,Key必须以x:开始。
$var =
    '{
        "x:var1":"value1",
        "x:var2":"值2"
    }';
$options = array(OssClient::OSS_CALLBACK => $json,
    OssClient::OSS_CALLBACK_VAR => $var);
// 在执行该操作时,需要提供所有有效的$uploadParts。OSS收到提交的$uploadParts后,会逐一验证每个分片的有效性。当所有的数据分片验证通过后,OSS将把这些分片组合成一个完整的文件。
$ossClient->completeMultipartUpload($bucket, $object, $uploadId, $uploadParts, $options);

printf(__FUNCTION__ . ": completeMultipartUpload OK\n");