Securely accessing a file system of a remote server computer

A method for allowing an executable program received on a first computer from a second computer to transfer data to a third computer, the method comprising:

• receiving, by the first computer, data and an associated executable program, from the second computer, the executable program being designed to begin execution from within a browser according to built in security restrictions that prevent the executable program from writing to a file system of a computer other than the one from which the executable program originated;
• executing the executable program upon an action by a user of the first computer, indicating that the user wishes to transfer the data to the third computer;
• requesting, by the executable program on the first computer, descriptor language for a new page from the third computer, where the new page includes a reference to an executable transfer program, the executable transfer program residing on the third computer;
• receiving, by the first computer, the executable transfer program from the third computer;
• executing, by the first computer, the executable transfer program, received from the third computer;
• and
• transferring the received data, by the transfer program executing on the first computer, to the file system of the third computer.

An apparatus that allows an executable program received on a first computer from a second computer to transfer data to a third computer, the apparatus comprising:

• a software portion configured to receive data and an associated executable program by the first computer from the second computer, the executable program being designed to begin execution from within a browser according to built in security restrictions that prevent the executable program from writing to a file system of a computer other than the one from which the executable program originated;
• a software portion configured to execute the executable program upon an action by a user of the first computer, indicating that the user wishes to transfer the data to the third computer;
• a software portion configured to generate, by the executable program on the first computer, descriptor language for a new page including a reference to an executable transfer program, the executable transfer program residing on the third computer;
• a software portion configured to receive, by the first computer, the executable transfer program from the third computer;
• a software portion configured to execute, by the first computer, the executable transfer program, received from the third computer;
• and
• a software portion configured to transfer the received data from the first computer to the file system of the third computer.

An apparatus that allows an executable program received on a first computer from a second computer to transfer data to a third computer, the apparatus comprising:

• a software portion configured to receive data and an associated executable program by the first computer from the second computer, the executable program being designed to begin execution from within a browser according to built in security restrictions that prevent the executable program from writing to a file system of a computer other than the one from which the executable program originated;
• a software portion configured to execute the executable program upon an action by a user of the first computer, indicating that the user wishes to transfer the data to the third computer;
• a software portion configured to request, by the executable program on the first computer, descriptor language for a new page from the third machine, where the new page includes a reference to an executable transfer program, the executable transfer program residing on the third computer;
• a software portion configured to receive, by the first computer, the executable transfer program from the third computer;
• a software portion configured to execute, by the first computer, the executable transfer program, received from the third computer;
• and
• a software portion configured to transfer the received data from the first computer to the file system of the third computer.

A computer program product, on a computer readable medium, which allows an executable program received by a first computer from a second computer to transfer data to a third computer, the computer program product comprising:

• program code for receiving data and an associated executable program by a first computer from a second computer, the executable program being designed to begin execution from within a browser according to built in security restrictions that prevent the executable program from writing to a file system of a computer other than the one from which the executable program originated;
• program code for executing the executable program upon an action by a user of the first computer indicating that the user wishes to transfer the data to the third computer;
• program code for generating, by the executable program on the first computer, descriptor language for a new page including a reference to an executable transfer program, the executable transfer program residing on the third computer;
• program code for receiving, by the first computer, the executable transfer program from the third computer;
• and
• program code for executing, by the first computer, the executable transfer program, received from the third computer;
• and
• program code for transferring the received data from the first computer to the file system of the third computer.

A computer program product, on a computer readable medium, which allows an executable program received by a first computer from a second computer to transfer data to a third computer, the computer program product comprising:

• program code for receiving data and an associated executable program by a first computer from a second computer, the executable program being designed to begin execution from within a browser according to built in security restrictions that prevent the executable program from writing to a file system of a computer other than the one from which the executable program originated;
• program code for executing the executable program upon an action by a user of the first computer indicating that the user wishes to transfer the data to the third computer;
• program code for requesting, by the executable program on the first computer, descriptor language for a new page including a reference to an executable transfer program, the executable transfer program residing on the third computer;
• program code for receiving, by the first computer, the executable transfer program from the third computer;
• and
• program code for executing, by the first computer, the executable transfer program, received from the third computer;
• and
• program code for transfering the received data from the first computer to the file system of the third computer.