Here's a stripped down version of a function I've used to download a zip
file. saveURI is asynchronous, so if you need to do anything when the
download is complete, set the progressListener.
function download() {
const FileFactory = new
Components.Constructor("@mozilla.org/file/local;1",
"nsILocalFile",
"initWithPath");
const nsIWBP = Components.interfaces.nsIWebBrowserPersist;
try {
// set up target destination for download
var dest = new FileFactory("C:/some/directory");
dest.append("myapp.zip");
if (!dest.exists()) {
dest.create(dest.NORMAL_FILE_TYPE, 0777);
}
// set up source
var uri = Components.classes['@mozilla.org/network/standard-url;1']
.createInstance(Components.interfaces.nsIURI);
uri.spec = "http://some/where/myapp.zip";;
var persist =
Components.classes["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"]
.createInstance(Components.interfaces.nsIWebBrowserPersist);
var flags = nsIWBP.PERSIST_FLAGS_NO_CONVERSION |
nsIWBP.PERSIST_FLAGS_REPLACE_EXISTING_FILES |
nsIWBP.PERSIST_FLAGS_BYPASS_CACHE;
persist.persistFlags = flags;
persist.progressListener = new PersistProgressListener;
persist.saveURI(uri, null, null, null, null, dest);
} catch(e) {
throw("Download failed.");
}
}
function PersistProgressListener() {}
PersistProgressListener.prototype = {
QueryInterface : function(aIID) {
if(aIID.equals(Components.interfaces.nsIWebProgressListener))
return this;
throw Components.results.NS_NOINTERFACE;
},
init : function() {},
destroy : function() {},
onStateChange : function(aWebProgress, aRequest, aStateFlags, aStatus) {
if (aStateFlags &
Components.interfaces.nsIWebProgressListener.STATE_STOP) {
// HERE DO WHATEVER AFTER THE FILE IS DOWNLOADED
}
},
onProgressChange : function (aWebProgress, aRequest,
aCurSelfProgress, aMaxSelfProgress,
aCurTotalProgress, aMaxTotalProgress) {},
onLocationChange : function(aWebProgress, aRequest, aLocation) {},
onStatusChange : function(aWebProgress, aRequest, aStatus, aMessage) {},
onSecurityChange : function(aWebProgress, aRequest, aState) {}
}
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Marek Lewczuk
Sent: Wednesday, May 19, 2004 5:25 PM
To: [EMAIL PROTECTED]
Subject: download binary file
Does anyone has working example how to download binary files over http
and save on local disc ?
Thanks
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