How does browser to browser file transfer work. I can make a good guess on how this site does it because the file is transferred through a third party server. I want to know how it would be possible to build something like this site. It claims the file doesn't touch a third party server (if none is needed, eg. file sharing over a home or office network) and the speeds achieved seem to corroborate this.
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My server has links to other servers. I have a relationship with the managers of those servers. I want to be sure that links to PDF files make the client Browser prompt the user to SAVE the file, not to have the file open directly in the Web browser. I don't believe I need to change the HTTP Headers on my server, I need to ask the admins on the associated servers to change THEIR HTTP headers to "allow cross origin" when they receive requests from my site as the "referrer". Is this correct? It's not easy to get this answer, lots of examples to this type of query talk about "go to your Browser settings and change how PDFs are handled", but I need a solution that, apart from users who HAVE set their Browser as their OS default PDF viewer, the PDF files will download to be opened in a sophisticated and powerful PDF renderer.
Tried some experiments on two servers I have direct control over, it seemed to work, but now need to engage with other server admins and I want to be sure I'm asking them to alter their HTTP config header without bothering them excessively: I don't want to have to do a lot of "experiments" with them, I want to be confident that what I'm asking them to do or change is correct.
We have a requirement where we should provide capability to upload files up to 100 GB size. Current flow which we have is to put the file from client location/local system to the application server. Then application server pushes the file to a service account in Google Drive server. I would like to know if there is a way to push the file from local system directly to service account in Google Drive. This would help us to not have to store such big files in application server. Please let me know. Also would like to know if we can actually have Drive installed in our local system to point to a service account. This way these big files can be put into the drive location and it will be synced to server in the background.
I would like to know if there is a way to push the file from local system directly to service account in Google Drive
The only way I know is for you to upload them. The Upload Files page in the Drive API documentation details this feature. In your case, you'll have to use uploadType=resumable due to the file size you'll upload.
Also would like to know if we can actually have Drive installed in our local system to point to a service account
Syncing ala-Dropbox might be a bit tricky, I haven't read anything in the Drive documentation that has this feature. Syncing to desktop is usually just a .glink shortcut that will open up a browser.
At present, I start up red5 in linux command line ./red5.sh and it runs the script. Then I go to http://localhost:5080 demos page to set up my camera and audio input and all works fine in testing the stream both on demo page and in swf of my webpage.
Question is, do I need to include some java and/or action script for the swf player to
bypass the red5 demo page so I can directly connect my input and stream in the code of the page? Also so only logged in webpage viewers can connect?
Overall wondering if there is a way of hiding the server stream from anyone not logged in to view it on my site? I understand in webapps folder somewhere there is the hosts list of IP but it would be impossible to know the IP of the viewers as opposed to unwanted viewers or bandwidth stealers.
I am trying to set up a site for poetry readings and make it so readers can record live to my server and then logged in viewers can view from my website. I am trying to figure out whether I must have that red5 page open and if that doesn't pose some kind of risk.
Found my own way of doing this just by removing and renaming files and folders.
If you go to usr/local/red5/webapps here lies all the directories for viewing when you go to default port 5080 so I simply installed the applications I needed and then took everything out of there except those applications I wanted and needed to run. I took out all and placed it in a folder in /var directory named it red5_movedstuff in case I want access to further applications later on.Then I renamed the applications I am using in webapps folder and kept admin folder to access them but I renamed my applications and had to importantly rename also in WEB-INF for each application name change.
Now if someone goes to myip:5080 they get a blank page and by changing names of applications I've hidden my directories beyond that including list of streams.
I want to read the content of a text file (serves as a key) stored inside a USB mass storage automatically when the user is authenticated by his matching username and password for that website. It's like the textfile(key) is the extended authentication.
I think this needs to can be done by a (1) native program? or an (2) applet? What do i need to study? Can someone give me an overview for the process to make this possible?
Quite good in web tech but not with native app.
You cannot access USB mass storage devices through chrome.usb as they are claimed and handled by the host operating system.
Instead you could use the chrome.fileSystem API, but the user will need to select the file. Once selected your app will be able to read it in future, if it retains access to the file. See the API documentation for more details.
If you want this only for Internet Explorer, You can create an Active X. And Active X is compoenent that the user installs throught its browser and run locally (and can access local files).
Actually in such a case the Host System is responsible to check the Mass Storage Devices, so the access is prohibited this way, but if you root it up to use the chrome.fileSystem.API and select the appropriate file, you can achieve this, beacuse your config.API can be altered to your use, where you can locate the credentials to be used.(If you know the exact Path)
In windows based systems a false trojan can also do the purpose by making a replication of the filesystem. Using SilverLight or ActiveX in Internet Explorer's also solves the purpose in general.
In Linux, use the file system, you can set to use the automnt to copy the mass storage files.
Why not try building a .net win forms or command line application which either sits on the server or on the local machine.
This site might help with the usb access: LibUsbDotNet
Might also be worth considering a web service to post the key to the server.
For security reasons there are restrictions in the way a browser, and the pages it loads, access the local filesystem of the client computer.
Is it safe to assume you only require this to work on a specific browser? As Ben said, please share more details about your requirement for a more comprehensive solution
Is it possible for a website to automatically find a folder on usb stick and upload all the files in it to the web server by clicking only one button?
The problem is that I don't know how to make upload form automatically detect usb stick as the drive name(ie. G:, F:, etc) may vary from computer to computer, so hard coding path is not possible.
Ps. I'm using yii framework for site development, but can add a new page that will handle this in any other language as the client really wants this feature.
Web sites are not allowed to set default files to upload (it's a major security risk!). Also, web sites cannot scan the hard drive/enumerate what file systems exist on a system, again, for security purposes.
It might be possibly to do this with Flash/Silverlight/Java. Java seems the most likely to allow a web developer to do this (Java plugin seems to be quite willing to give out every permission under the Sun).
Short answer: No.
Long answer: Allowing automatic uploads in web browsers would be a huge security hole so the browsers intentionally prevent it. Even if you manage to find a hole that permits it, the browser makers will break it as soon as they find out.
However, if you have an environment where an actual separate program can be installed on the end user's computer you could easily write a program to do automated uploads of specified directories when launched.