我正在尝试将文件从HTML5文件对话框上传到我的Google文档帐户。
我正在使用Google Documents List API 3.0版来处理此请求，以及this链接上的说明。
我在查询后从Documents List JSON收集正确的 resumable-create-link URL，并将XML实体POST到该链接以获取 location URL。我得到200 OK响应和位置URL。
设置标题后，我向位置URL发出PUT请求以上传文件。出于此问题的目的，该文件小于512kb，并且不需要分块。
提交此PUT请求后，我收到400 Bad Request（有时400无效请求）响应，并且文件未上传。
有趣的是，如果我省略 Content-Range 标题，我可以上传一个小文件，但文本文件以外的文件已损坏。
我已经对内存中加载的文件和本地文件进行了二进制比较。它们似乎匹配。
要访问API，我在使用http://www.google.com/jsapi的Google小工具中使用Javascript。
我使用gadgets.io.makeRequest获取，发布和PUT数据。我的授权标头和令牌似乎是正确的，因为我能够查询没有问题的文档列表。
我应采取哪些步骤来解决此问题？
示例输出
PUT /feeds/upload/create-session/default/private/full?v=3.0&convert=false&upload_id=[id]
Host: docs.google.com
X-Shindig-AuthType: oauth
Authorization: OAuth oauth_body_hash="x", opensocial_owner_id="x", opensocial_viewer_id="x", opensocial_app_id="x", opensocial_app_url="x", xoauth_signature_publickey="x", xoauth_public_key="x", oauth_version="1.0", oauth_timestamp="x", oauth_nonce="x", opensocial_container="x", oauth_token="x", oauth_consumer_key="x", oauth_signature_method="RSA-SHA1", oauth_signature="x"
Content-Length: 433
Content-Range: bytes 0-433/433
Content-Type: application/x-javascript
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.79 Safari/535.11,gzip(gfe)
X-Forwarded-For: 74.203.139.139
X-shindig-dos: on
X-Upload-Content-Length: 433
X-Upload-Content-Type: application/x-javascript
[bytes 0-433]
==== Received response 1:
HTTP/1.1 400
Cache-Control: no-cache, no-store, must-revalidate
Content-Length: 15
Content-Type: text/html; charset=UTF-8
Date: Thu, 05 Apr 2012 19:49:48 GMT
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Pragma: no-cache
Server: HTTP Upload Server Built on Apr 2 2012 11:47:06 (1333392426)
Via: HTTP/1.1 GWA
X-Google-Cache-Control: remote-fetch
Invalid Request
====
errors: 400 Error
修改
二进制代码处理数据：
// -- File Upload functions --
function constructContent(docTitle) {
var atom = ['<?xml version=\"1.0\" encoding=\"UTF-8"?>',
'<entry xmlns=\"http://www.w3.org/2005/Atom\" xmlns:docs=\"http://schemas.google.com/docs/2007\">',
'<title>' + docTitle + '</title>',
'</entry>'].join('');
return atom;
}
function writeFile(file, under512) {
var body = constructContent(file.name.toString());
var params = {};
console.log(body);
params[gadgets.io.RequestParameters.AUTHORIZATION] = gadgets.io.AuthorizationType.OAUTH;
params[gadgets.io.RequestParameters.OAUTH_SERVICE_NAME] = "google";
params[gadgets.io.RequestParameters.OAUTH_USE_TOKEN] = "always";
params[gadgets.io.RequestParameters.METHOD] = gadgets.io.MethodType.POST;
params[gadgets.io.RequestParameters.POST_DATA] = body;
params[gadgets.io.RequestParameters.HEADERS] = {
"Content-Type" : "application/atom+xml",
"Content-Length" : "359",
"X-Upload-Content-Type" : file.type.toString(),
"X-Upload-Content-Length" : file.size.toString()
};
var data;
submitRequest(resumableLink + '&convert=false', params, function(requestSuceeded, data) {
if ( data.rc == 200 ) {
console.log(data);
console.log(data.headers.location[0].toString());
if ( under512 == true ) {
continueFile(data.headers.location[0].toString(), file, ('0-' + file.size + '/' + file.size).toString(), under512, params);
}
else {
continueFile(data.headers.location[0].toString(), file, ('0-524287/' + file.size).toString(), under512, params);
}
}
});
}
// recursive
function continueFile(location, file, contentRange, under512) {
console.log('location: ' + location);
var contentLength = "0";
var reader = new FileReader();
var blob;
var start = contentRange.split('-')[0].toString();
var stop = contentRange.split('-')[1].split('/')[0].toString();
console.log(file.size);
console.log(file.type);
console.log('start: ' + start);
console.log('stop: ' + stop);
console.log(("bytes " + contentRange).toString());
console.log(contentRange);
( under512 == true ) ? contentLength = contentRange.split('/')[1].toString() : contentLength = "524288";
if ( file.webkitSlice ) {
blob = file.webkitSlice(start, stop+1);
}
else {
blob = file.mozSlice(start, stop+1);
}
reader.readAsBinaryString(blob);
reader.onloadend = function(evt) {
if ( evt.target.readyState == FileReader.DONE ) {
console.log(evt.target.result);
var b = showResult(reader);
// console.log('binary: ' + b);
var params = {};
params[gadgets.io.RequestParameters.AUTHORIZATION] = gadgets.io.AuthorizationType.OAUTH;
params[gadgets.io.RequestParameters.OAUTH_SERVICE_NAME] = "google";
params[gadgets.io.RequestParameters.OAUTH_USE_TOKEN] = "always";
params[gadgets.io.RequestParameters.METHOD] = gadgets.io.MethodType.PUT;
params[gadgets.io.RequestParameters.POST_DATA] = evt.target.result;
params[gadgets.io.RequestParameters.HEADERS] = {
"Content-Length" : (contentLength).toString(),
"Content-Type" : file.type.toString(),
"Content-Range" : ("bytes " + contentRange).toString().trim()
// "GData-Version" : "3.0"
};
submitRequest(location.toString().trim(), params, function(requestSucceeded, data) {
if ( data.rc == 308 ) {
var newStart = start + 524288;
var newEnd;
( end + 524288 > file.size ) ? newEnd = file.size : newEnd = end + 524288;
var range = (newStart + '-' + newEnd + '/' + file.size).toString().trim();
continueFile(data.headers.location.toString().trim(), file, range, under512);
}
else if ( data.rc == 201 ) {
console.log('done!');
}
else {
console.log('terrible error.');
console.log(data);
writeObj(data);
}
});
}
};
}
function uploadFile() {
var file = document.getElementById('uploads').files[0];
var under512 = false;
( file.size < 524287 ) ? under512 = true : under512 = false;
writeFile(file, under512);
}
答案 0 :(得分：0)
如the docs中所述，延续请求没有X-Upload-Content- *标头，应该看起来更像：
PUT [next location]
Content-Length: 524288
Content-Type: application/pdf
Content-Range: bytes 0-524287/1073741824
此外，在您的日志中，0-433是434字节，而不是433。