Hello,
I have a Document Service that I can upload to, view and delete from via multipart POST requests containing a data file to a proxy bridge Java application (following this page).
I want to create an xsjs service to act as a proxy between my UI5 application and the Document Service so I can abstract the Document Service authentication to a xshttpdest file and also populate/maintain a document catalog on our database. I have tried redirecting the original POST request to an xsjs service, crafting my own $.web.WebRequest that points to the Document Service and destination file and copying over the entities, parameters, etc. from the original request. (code below)
This is partly working, and it creates a cmis object on the Document Service with the metadata fields (name, etc), but not the file contents. I suspect the issue to be related to setting the bodies on the entities which contains the file data. Copying the entity bodies from the $.request object to the WebRequest objects entity list using the setBody method does not seem to be working. When I try to evaluate the body of any of these entities, I get an error with message "WebEntityRequest.body: not supported".
I have also tried changing the headers in the incoming $.request to point to our Document Service URI but the XSJS API does not allow the set method on '$.request.headers'.
Am I using the setBody method incorrectly here? Or is there a better way of approaching this? Would greatly appreciate any input or assistance!
Tester HTML (to be done in UI5):
<html>
<head>
<title>File Upload Tester</title>
<script type="text/javascript">
function setFilename() {
var thefile = document.getElementById('filename').value.split('\\').pop();
document.getElementById("cmisname").value = thefile;
}
</script>
</head>
<body>
Upload a file to the document service (browse, then press upload)
<p>
Please specify a file:<br>
</p>
<form action=".../document.xsjs" enctype="multipart/form-data" method="post">
<div>
<input type="file" id="filename" onchange="setFilename()" name="datafile" size="40">
<br><br>
<input name="cmisaction" type="hidden" value="createDocument" />
<input name="propertyId[0]" type="hidden" value="cmis:objectTypeId" />
<input name="propertyValue[0]" type="hidden" value="cmis:document" />
<input name="propertyId[1]" type="hidden" value="cmis:name" />
<input name="propertyValue[1]" type="hidden" id="cmisname" />
<input type="submit" value="Upload">
</div>
</form>
</body>
</html>
document.xsjs:
var dest_pkg = "...";
var dest_name = "...";
var dest_path = ".../[repo_key]/root";
try {
var dest = $.net.http.readDestination(dest_pkg, dest_name);
var req = new $.web.WebRequest($.net.http.POST, dest_path);
var client = new $.net.http.Client();
var i;
var j;
for(i = 0; i < $.request.entities.length; i ++) {
// Create blank entity
req.entities.create();
// Copy original contentType
if ($.request.entities[i].contentType !== undefined) {
req.entities[i].contentType = $.request.entities[i].contentType;
}
// Copy original entitiy headers
for(j = 0; j < $.request.entities[i].headers.length; j ++) {
req.entities[i].headers.set($.request.entities[i].headers[j].name, $.request.entities[i].headers[j].value);
}
// Copy original entitiy parameters
for(j = 0; j < $.request.entities[i].parameters.length; j ++) {
req.entities[i].parameters.set($.request.entities[i].parameters[j].name, $.request.entities[i].parameters[j].value);
}
// Copy original entitiy body
if ($.request.entities[i].body !== undefined) {
req.entities[i].setBody($.request.entities[i].body.asArrayBuffer());
}
}
// Copy original parameters
for (i = 0; i < $.request.parameters.length; i ++) {
req.parameters.set($.request.parameters[i].name, $.request.parameters[i].value);
}
client.request(req, dest);
var res = client.getResponse();
$.response.contentType = "application/json";
$.response.setBody(res.body.asString());
$.response.status = $.net.http.OK;
} catch (e) {
$.response.contentType = "text/plain";
$.response.setBody(e.message);
}
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