I think that "base64 the blob, attach that to a form" means to encrypt the blob in base64 and put it as a hidden field (text) to a form. Then on server decrypt the base64 string and read the blob.
I think this will not work because I don't think there is any JS code to base64 encrypt binary data (I think all JS base64 encryption libraries can only encrypt ASCII). If you try that, please post back the result and maybe what libraries you used for ecription/decription. On Oct 20, 10:52 am, Jordan <[email protected]> wrote: > Thanks for your answer Drew. > > Yesterday they give me 128 MB of images. > > 1) is not useful. If I use the remote server as proxy, I have a low > upload bandwith. I had the remote server as proxy and upload speed was > 20-30kb/s. > > 2) send the files in the URL as a GET info or in url of page loadad ? > > 3) I dont know how to attach the blob to the form, but I will look for > info. > > On 17 oct, 19:18, Drew <[email protected]> wrote: > > > Same origin policy means that you can't do real XHR to a remote > > server, but there are a few workarounds: > > > 1. Use the local server as a proxy. Do an XHR post to the local > > server, and then have that server turn around and post the data to the > > central server. > > > 2. Use a script tag instead of XHR. This is a good technique for cross- > > site javascript when the request data is simple, but since you're > > limited to using the query string, it's not a good solution for > > sending actual files. > > > 3. Use a hidden form and iframe. Do all your image manipulation > > locally, then if you need to send something to a remote server, base64 > > the blob, attach that to a form and post to an iframe. > > > On Oct 17, 7:25 am, Jordan <[email protected]> wrote: > > > > I put the upload pages at the local server, and I will load the page > > > in an IFRAME, but I dont like this method, beacuse I will need copy > > > the application software, and to do changes i will need to update all > > > the servers and check them. > > > > If anybody knows how to do with the external calls, I will be very > > > happy. > > > > On 14 oct, 09:55, Jordan <[email protected]> wrote: > > > > > I am using Google Gears and Desktop to select multiple images. > > > > I reduce the size with canvas, and upload to our company web server. > > > > (to save time, I reduce and upload instead of upload and reduce and is > > > > working fine) > > > > > Now I have to store the thumbnailed image and the full size images at > > > > the central server. > > > > To don't lose the saved upload time, as I have multiple offices with a > > > > local server for each office, > > > > I thought to send the thumbnail to the web server, and the full size > > > > image to the lan server and syncronize with another software. > > > > > But for "security reasons" the xmlhttprequest cant be sent to a > > > > different server that one the javascript runing server. > > > > > I am trying to do the next : > > > > MyPC -> PickFiles (only one time) > > > > Send ThumbSize to -> WebServer > > > > Send FullSize to -> LocalServer > > > > > Some ideas ?? > > > > > I tried with a form and an input file type, but I cant set the origin > > > > of the input ("security reasons" again), and I won't select the files > > > > one by one as I don't know the number of images. > > > > > Thanks to all.
