check for active web pages with open-uri

[Chuck Dawit]

I'm using openuri module to open web pages. If the pages doesn't exist I
get an error:
in `initialize': getaddrinfo: no address associated with hostname.
(SocketError)

then I get a whole bunch of other stuff. Is there a parameter to use so
that open() returns a true or false value if the page exists or not?
Basically I'm looking through a list of web addresses and I want to
store the active pages and throw away the non active pages. So if the
page doesn't exist I want to be able to move on in the script.

 

[Tim Hunter]

I'm using openuri module to open web pages. If the pages doesn't exist I
get an error:
in `initialize': getaddrinfo: no address associated with hostname.
(SocketError)

then I get a whole bunch of other stuff. Is there a parameter to use so
that open() returns a true or false value if the page exists or not?
Basically I'm looking through a list of web addresses and I want to
store the active pages and throw away the non active pages. So if the
page doesn't exist I want to be able to move on in the script.

Why not use rescue to catch the SocketError?

 

[Chuck Dawit]

Why not use rescue to catch the SocketError?

If I use rescue will the script return back to normal flow without
exiting? I don't want the script to exit.

 

[Tim Hunter]

If I use rescue will the script return back to normal flow without
exiting? I don't want the script to exit.

If that's what you want it to do. The idea is that your rescue block
gets control when a SocketError occurs. What happens after that is up to
you.