我需要从node.js中基于soap的Web服务下载或处理文件。 有人可以建议我如何在node.js
中处理这个问题我试过'node-soap'或'soap'NPM模块。它适用于普通的肥皂网服务。但是,不是基于二进制蒸汽或基于MTOM的SOAP Web服务
答案 0 :(得分:0)
我想尝试回答这个问题......很有意思的是,2年零2个月之后,我无法弄清楚如何轻松解决同样的问题。
我正试图通过以下回复获取附件:
...
headers:{'cache-control':'no-cache =“set-cookie”', 'content-type':'multipart / related; boundary =“---- = _ Part_61_425861994.1525782562904”; type =“application / xop + xml”; start =“”; start-info =“text / xml”',
...
body:'------ = _ Part_61_425861994.1525782562904 \ r \ nContent-Type: 应用/ XOP + xml的;字符集= UTF-8; type =“text / xml”\ r \ nConContent-Transfer-Encoding:8bit \ r \ nContent-ID: \ r \ n \ r \ n .... \ r \ n ------ = _ Part_61_425861994.1525782562904 \ r \ nContent型: 应用/八位字节流\ r \ nContent传送编码: 二进制\ r \ nContent-ID: \ r \ n \ r \ nPNG \ r \ n \ u001a \ n \ u0000的\ u0000的\ u0000的\ rIHDR \ u0000的\ u0000的\ U0002,\ u0000的\ u0000的\ u0005 \ B \ u0006 \ U0 .... .... ....二进制
我尝试ws.js但没有解决方案。
我的解决方案:
var request = require("request");
var bsplit = require('buffer-split')
// it will extract "----=_Part_61_425861994.1525782562904" from the response
function getBoundaryFromResponse(response) {
var contentType = response.headers['content-type']
if (contentType && contentType.indexOf('boundary=') != -1 ) {
return contentType.split(';')[1].replace('boundary=','').slice(1, -1)
}
return null
}
function splitBufferWithPattern(binaryData, boundary) {
var b = new Buffer(binaryData),
delim = new Buffer(boundary),
result = bsplit(b, delim);
return result
}
var options = {
method: 'POST',
url: 'http://bla.blabal.../file',
gzip: true,
headers: {
SOAPAction: 'downloadFile',
'Content-Type': 'text/xml;charset=UTF-8'
},
body: '<soapenv: ... xml request of the file ... elope>'
};
var data = [];
var buffer = null;
var filename = "test.png"
request(options, function (error, response, body) {
if (error) throw new Error(error);
if (filename && buffer) {
console.log("filename: " + filename)
console.log(buffer.toString('base64'))
// after this, we can save the file from base64 ...
}
})
.on('data', function (chunk) {
data.push(chunk)
})
.on('end', function () {
var onlyPayload = splitBufferWithPattern(Buffer.concat(data), '\r\n\r\n') // this will get from PNG
buffer = onlyPayload[2]
buffer = splitBufferWithPattern(buffer, '\r\n-')[0]
console.log('Downloaded.');
})
我不确定它是否适用于大多数情况。它看起来像我的眼睛不稳定的代码,所以我正在寻找更好的东西。
答案 1 :(得分:0)
使用ws.js
以下是获取文件附件的方法:
const ws = require('ws.js')
const { Http, Mtom } = ws
var handlers = [ new Mtom(), new Http()];
var request = '<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">' +
'<s:Body>' +
'<EchoFiles xmlns="http://tempuri.org/">' +
'<File1 />' +
'</EchoFiles>' +
'</s:Body>' +
'</s:Envelope>'
var ctx = { request: request
, contentType: "application/soap+xml"
, url: "http://localhost:7171/Service/mtom"
, action: "http://tempuri.org/IService/EchoFiles"
}
ws.send(handlers, ctx, function(ctx) {
//read an attachment from the soap response
var file = ws.getAttachment(ctx, "response", "//*[local-name(.)='File1']")
// work with the file
fs.writeFileSync("result.jpg", file)
})
两个限制:
。
xpath = "//*[@href='cid:" + encodeURIComponent(id) + "']//parent::*"
具有:
xpath = "//*[@href='cid:" + id + "']//parent::*"