我正在尝试在Salesforce APEX中实施Azure Put Blob，但出现以下错误。我已经阅读了几乎所有的Microsoft文档，并尝试了许多方法，但最终还是停留在同一点。
我想请人看看。
错误
<?xml version="1.0" encoding="utf-8"?>
<Error>
<Code>AuthenticationFailed</Code>
<Message>Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
RequestId:e41a64e6-301e-0047-5cbd-fa2206000000
Time:2020-03-15T11:36:39.3690495Z</Message>
<AuthenticationErrorDetail>The MAC signature found in the HTTP request '7XBxAbAYZNkrx6mWol+RAYieDNZm9/JN6/4IQ+ygxhk=' is not the same as any computed signature. Server used following string to sign: 'PUT
1002
x-ms-blob-type:BlockBlob
x-ms-date:Sun, 15 Mar 2020 11:31:59 GMT
x-ms-version:2015-02-21
/zaindevtesting/zaindevblob/test.txt
blockid:YmxvY2stMQ==
comp:block'.</AuthenticationErrorDetail>
</Error>
下面是示例代码，关键信息是针对我的测试环境的，因此请注意，您可以使用相同的密钥来执行示例。
public static void putAzureBlob(Blob fileBody)
{
String blobName = '/zaindevtesting/zaindevblob/test.txt';
String urlQueue = 'https://zaindevtesting.blob.core.windows.net/zaindevblob/test.txt';
string storageKey = 'xxxx==';
Datetime dt = Datetime.now();
string formattedDate = dt.formatGMT('EEE, dd MMM yyyy HH:mm:ss') + ' GMT';
System.debug('formattedDate--->'+formattedDate);
System.debug('fileLength--->'+ fileLength);
System.debug('fileLength--->'+ fileType);
string sts = 'PUT\n\n\n'+fileLength+'\n\n'+fileType+'\n\n\n\n\n\nx-ms-blob-type:BlockBlob\nx-ms-date:' + formattedDate + '\nx-ms-version:2015-02-21\n' + blobName;
String signature = '';
Blob unicodeKey = EncodingUtil.base64Decode(storageKey);
Blob data = Crypto.generateMac('HMACSHA256', Blob.valueOf(sts), unicodeKey);
signature = EncodingUtil.base64Encode(data);
string authHeader = 'SharedKey zaindevtesting:' + signature;
System.debug('authHeader--->'+authHeader);
HttpRequest req = new HttpRequest();
req.setMethod('PUT');
req.setHeader('x-ms-blob-type', 'BlockBlob');
req.setHeader('x-ms-date', formattedDate);
req.setHeader('x-ms-version', '2015-02-21');
req.setHeader('Authorization', authHeader);
req.setEndpoint(urlQueue);
req.setBodyAsBlob(fileBody);
Http http = new Http();
try
{
HTTPResponse res = http.send(req);
// in the response body you have your blob
System.debug('Status--->'+res.getStatus());
// Let's save it as attachment
System.debug('Body---->'+res.getBody());
}catch(Exception exp)
{
System.debug('Exception --->'+exp);
}
}
第二种方法编辑用于生成签名的代码后，我现在得到此错误
<?xml version="1.0" encoding="utf-8"?>
<Error>
<Code>InvalidAuthenticationInfo</Code>
<Message>Authentication information is not given in the correct format. Check the value of Authorization header.
RequestId:c869405b-501e-0013-6328-fbc88c000000
Time:2020-03-16T00:16:06.8896380Z</Message>
</Error>
以下是我的代码
public static void putAzureBlob(Blob fileBody, Integer fileLength, String fileType)
{
String blobName = '/zaindevtesting/zaindevblob/test.txt';
String urlQueue = 'https://zaindevtesting.blob.core.windows.net/zaindevblob/test.txt';
string storageKey = 'XXXXXXXXXXXX==';
Datetime dt = Datetime.now();
string formattedDate = dt.formatGMT('EEE, dd MMM yyyy HH:mm:ss') + ' GMT';
System.debug('formattedDate--->'+formattedDate);
System.debug('fileLength--->'+ fileLength);
System.debug('fileLength--->'+ fileType);
string sts = 'PUT\n\n\n'+fileLength+'\n\n'+fileType+'\n\n\n\n\n\nx-ms-blob-type:BlockBlob\nx-ms-date:' + formattedDate + '\nx-ms-version:2015-02-21\n' + blobName;
String signature = '';
Blob unicodeKey = EncodingUtil.base64Decode(storageKey);
Blob data = Crypto.generateMac('HMACSHA256', Blob.valueOf(sts), unicodeKey);
signature = EncodingUtil.base64Encode(data);
System.debug('signature--->1'+ signature);
signature = EncodingUtil.urlEncode(signature, 'UTF-8');
System.debug('signature--->2'+ signature);
string authHeader = 'SharedKey zaindevtesting:' + signature;
System.debug('authHeader--->'+authHeader);
HttpRequest req = new HttpRequest();
req.setMethod('PUT');
req.setHeader('x-ms-blob-type', 'BlockBlob');
req.setHeader('x-ms-date', formattedDate);
req.setHeader('x-ms-version', '2015-02-21');
req.setHeader('Authorization', authHeader);
req.setHeader('Content-Length', String.valueof(fileLength));
req.setEndpoint(urlQueue);
req.setBodyAsBlob(fileBody);
Http http = new Http();
try
{
HTTPResponse res = http.send(req);
// in the response body you have your blob
System.debug('Status--->'+res.getStatus());
// Let's save it as attachment
System.debug('Body---->'+res.getBody());
}catch(Exception exp)
{
System.debug('Exception --->'+exp);
}
}
第三种方法这是我用于签名的三种不同方式
string sts = 'PUT\n\n\n'+fileLength+'\n\n'+fileType+'\n\n\n\n\n\n\nx-ms-blob-type:BlockBlob\nx-ms-date:' + formattedDate + '\nx-ms-version:2015-02-21\n' + blobName;
//string sts = 'PUT\n\n\n'+fileLength+'\n\n'+fileType+'\n\n\n\n\n\n\nx-ms-date:' + formattedDate + '\nx-ms-version:2015-02-21\n' + blobName;
// string sts = 'PUT\n\n\n\n\n\n\n\n\n\n\n\nx-ms-date:' + formattedDate + '\nx-ms-version:2015-02-21\n' + blobName+'\nrestype:container\ntimeout:30';
我仍然收到此错误，有一件事，我注意到根据调试我的内容长度为996，但错误显示1002吗？
<?xml version="1.0" encoding="UTF-8"?>
<Error>
<Code>AuthenticationFailed</Code>
<Message>Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
RequestId:f7ccfaf6-a01e-0060-113d-fbb84f000000
Time:2020-03-16T02:52:05.0980775Z</Message>
<AuthenticationErrorDetail>The MAC signature found in the HTTP request 'R+k2bivFW2AH3UriO8m4z8RxPJRDC8uujRc6FCZMEs8=' is not the same as any computed signature. Server used following string to sign: 'PUT
1002
text/plain;charset=UTF-8
x-ms-blob-type:BlockBlob
x-ms-date:Mon, 16 Mar 2020 02:52:04 GMT
x-ms-version:2015-02-21
/zaindevtesting/zaindevblob/test.txt'.</AuthenticationErrorDetail>
</Error>
我在您的代码中看到的一个问题是，您的签名字符串（sts）中没有包含content-length和content-type：
string sts = 'PUT\n\n\n\n\n\n\n\n\n\n\nx-ms-blob-type:BlockBlob\nx-ms-date:' + formattedDate + '\nx-ms-version:2015-02-21\n' + blobName+'\nblockid:YmxvY2stMQ==\ncomp:block';
此外，考虑到您执行的是Put Blob操作而不是Put Blob操作，因此不需要在Put Block中包括Put Block。
应该是：
blockid:YmxvY2stMQ==\ncomp:block有关更多详细信息，请参见：sts。