在我的 Firefox 扩展中,我下载了文件,然后扩展应该上传它。我执行以下操作 -
// downloading file
var persist = Components.classes["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"]
.createInstance(Components.interfaces.nsIWebBrowserPersist);
var file = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties)
.get("TmpD", Components.interfaces.nsIFile);
file.append("temp.torrent");
file.createUnique(Components.interfaces.nsIFile.NORMAL_FILE_TYPE, 0666);
var fURI = synoext.srv.io.newURI(url,null,null);
const nsIWBP = Components.interfaces.nsIWebBrowserPersist;
const flags = nsIWBP.PERSIST_FLAGS_REPLACE_EXISTING_FILES;
persist.persistFlags = flags | nsIWBP.PERSIST_FLAGS_FROM_CACHE;
persist.progressListener = {
onProgressChange: function(aWebProgress, aRequest, aCurSelfProgress, aMaxSelfProgress, aCurTotalProgress, aMaxTotalProgress) {
},
onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus) {
if (aStateFlags & Components.interfaces.nsIWebProgressListener.STATE_STOP) {
// file has been downloaded, upload it
Components.utils.import("resource://gre/modules/NetUtil.jsm");
NetUtil.asyncFetch(file, function(inputStream, status) {
if (!Components.isSuccessCode(status)) {
return;
}
var filedata = NetUtil.readInputStreamToString(inputStream, inputStream.available());
var boundary = "-----------------------ZzzZzzZzz";
var postdata = "--"+boundary+"\r\n";
postdata += "Content-Disposition: form-data; name=\"api\""+"\r\n";
postdata += "\r\n";
postdata += "SYNO.DownloadStation.Task"+"\r\n";
postdata += "--"+boundary+"\r\n";
postdata += "Content-Disposition: form-data; name=\"version\""+"\r\n";
postdata += "\r\n";
postdata += "1"+"\r\n";
postdata += "--"+boundary+"\r\n";
postdata += "Content-Disposition: form-data; name=\"method\""+"\r\n";
postdata += "\r\n";
postdata += "create"+"\r\n";
postdata += "--"+boundary+"\r\n";
postdata += "Content-Disposition: form-data; name=\"file\"; filename=\""+file.leafName+"\""+"\r\n";
postdata += "Content-Type: application/x-bittorrent"+"\r\n";
postdata += "\r\n";
postdata += filedata;
postdata += "--"+boundary;
postdata += "\r\n";
var req = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"]
.createInstance(Components.interfaces.nsIXMLHttpRequest);
req.open('POST', "http://192.168.1.5:5000/webapi/DownloadStation/task.cgi", true); // asynch
req.onload = function() {
// file uploaded
};
req.setRequestHeader('Content-Type', 'multipart/form-data; boundary='+boundary);
// req.setRequestHeader('Content-Length', postdata.length);
req.send(postdata);
});
但是文件上传不正确。我的测试用例中的原始文件是 31Kb,但上传的文件是 46Kb。如果我检查filedata.length
,那么它是正确的 - 31Kb。