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google / cloud-print-connector

Google Cloud Print Connector
BSD 3-Clause "New" or "Revised" License
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Works perfectly with one account but not another #109

Closed timmrogers closed 9 years ago

timmrogers commented 9 years ago

I've finally sorted out my problems with CUPS, with our Brother HL5470-DW printers, with encryption, and so on - and installed the latest version of the cups-connector. I am using local mode. And when I am logged into Chrome with my @gmail.com account, it works perfectly!

However, when I use my Google Apps for Education account (@oakhillschool.net), none of the printers share by the cups-connector appear! I can see some that have been shared in other ways, but not the ones managed by the cups-connector.

Any suggestions?

Thank you!

jay0lee commented 9 years ago

Hi Tim,

A few questions:

timmrogers commented 9 years ago

Thanks for the reply.

No VPN nor proxy. Yes, I can always ping and ssh to the CUPS server. Yes, I am always using the same Wi-Fi connection.

The strange thing is that I am merely changing the account that I am using to log into Google. Absolutely nothing else is changing on my computer or network. In fact, right now, I am logged in in one Chrome window to my @oakhillschool.net account and another in my @gmail.com account - and one works with the cups-connector printers and one does not.

Also: I see that no Cloud Print printers show up at all when I log in with an old @gmail.com account that I don't use often. Only with my timmrogers@gmail.com account.

Could I have old cups-connector configuration files around from my earlier attempts to get this working? I'll look...

jay0lee commented 9 years ago

Thanks, is this a Chrome OS device or something else? Can you try installing this extension:

https://chrome.google.com/webstore/detail/mdns-browser/kipighjpklofchgbdgclfaoccdlghidp

when opening mDNS Browser, you should see (among other items) a listing for "_privet" and the IP address of your cups-connector server. Do you see that on both profiles? If you can't see it in the profile, some network setting is blocking cups-connector's mDNS broadcast.

timmrogers commented 9 years ago

I'm working with Google Chrome on a MacBook Pro (OS X 10.10).

I also tried it on a Chromebook using my @oakhillschool.net account.

I'll try to extension.

timmrogers commented 9 years ago

While logged into my @oakhillschool.net account in Google Chrome, and running Apps | mDNS Browser, _prvet shows 192.16.0.5 - which is the IP address of my CUPS server.

jay0lee commented 9 years ago

OK, can you try browsing to:

chrome://policy

and print the page you see there to a PDF and attach it here?

timmrogers commented 9 years ago

Here you go. (I notice that my timmrogers@gmail.com has no mandatory policies, while this has a couple. Might these be the issue?)

Hmmm...GitHub will not allow me to attach the PDF. It says "Something went really wrong, and we can't process that file."

Here is the information as text:

User policies User: trogers@oakhillschool.net Client ID: 28335CEB-E533-43BF-A56B-60612771C39C Last fetched: 2 hours ago Fetch interval: 3 hours Status: Policy cache OK Chrome policies

Applies to Level Policy name Policy value Status Current user Mandatory ExtensionInstallBlacklist nccnonfgafoenakjedibnklpgdgjakkh OK Current user Mandatory MaxInvalidationFetchDelay 10000 OK

timmrogers commented 9 years ago

Chrome just popped up two announcements, saying that it had found "7 new printers" and suggesting that I add them to my Google Chrome print so I could print from anywhere.

I didn't. I notice that those printers are still not available in Cloud Print.

jacobmarble commented 9 years ago

Tim, that "7 new printers" popup is a Chrome bug. You'll never need to respond to it with a CUPS Connector printer.

However, it does indicate that Chrome saw the mDNS announcement, so that's good.

timmrogers commented 9 years ago

Thanks.

I see that it gave the announcement (twice) again. That might be a problem, if it is making that announcement every few minutes to everyone on campus who is using Google Chrome.

jacobmarble commented 9 years ago

@timmrogers I suggest that you become a squeaky wheel here: crbug.com/540847 I talked to the engineer responsible for this yesterday; he says this is a pretty easy bug to fix.

timmrogers commented 9 years ago

I voted for the bug. Your report seemed more than clear!

Leaving aside the Google bug, any ideas as to why the printers are available in one account and not another?

jacobmarble commented 9 years ago

(punting to @jay0lee)

jay0lee commented 9 years ago

Can you share screenshots of what you see when you hit CYRL+P on a web page in both accounts?

jay0lee commented 9 years ago

CTRL+P, sorry for mobile typo

timmrogers commented 9 years ago

You can see the account name in the screenshots. I am looking for the printer called "ohs-computer_lab". It is available in the @gmail.com account, but not the @oakhillschool.net account.

oakhillschool account gmail account
jay0lee commented 9 years ago

@timmrogers we don't expect the GCP version of the printer to show under Google Cloud Print for your school account unless you've shared the printer and accepted it.We're looking for the local version. Does it show further up the list under a "Local Destinations heading?

timmrogers commented 9 years ago

That makes sense - but a couple of things are confusing to me.

First, the GCP version of the printer DOES show up under Google Cloud Print for my @gmail.com account. But on the same machine, same network, same everything, it does not show up there for my @oakhillschool.net account. I can't imagine why that would be.

Second, no printers show up on a Chromebook when logged in under my @ oakhillschool.net account. Which is, for me, the point of the entire exercise!

(I haven't tried the Chromebook with my @gmail.com acount, but I can do that and let you know.)

But no. "ohs-computer_lab" and the other printers shared via the gcp-cups-connector do not appear under Local Destinations - at least, not by the names that I expect. I DO see new entries there though. Perhaps that is the gcp-cups-connector doing its thing? Or could it be the CUPS server?

I'm afraid that the difference between the behavior of the two accounts has my head spinning a bit!

Thanks.

On Thu, Oct 8, 2015 at 2:11 AM Jay Lee notifications@github.com wrote:

@timmrogers https://github.com/timmrogers we don't expect the GCP version of the printer to show under Google Cloud Print for your school account unless you've shared the printer and accepted it.We're looking for the local version. Does it show further up the list under a "Local Destinations heading?

— Reply to this email directly or view it on GitHub https://github.com/google/cups-connector/issues/109#issuecomment-146466017 .

jay0lee commented 9 years ago

First, the GCP version of the printer DOES show up under Google Cloud Print for my @gmail.com account. But on the same machine, same network, same everything, it does not show up there for my @oakhillschool.net account. I can't imagine why that would be.

Google CloudPrint printers are shared between Google accounts. It doesn't matter what network or device you are on, what matters is if it's shared with your Google account. You can go to google.com/cloudprint from the @gmail.com account and share the printer with your school account or you can set share_scope in your gcp-cups-connector config file to automatically share all your GCP printers with your school account.

Second, no printers show up on a Chromebook when logged in under my @ oakhillschool.net account. Which is, for me, the point of the entire exercise!

If local printing is functional and you're connected to the same network, the local version of your printer should show under "Local Destinations" when you hit CTRL+P on the Chromebook and Change the printer.

timmrogers commented 9 years ago

OK - I'll try a few things and get back to you.

Thanks again.

On Thu, Oct 8, 2015 at 8:43 AM Jay Lee notifications@github.com wrote:

First, the GCP version of the printer DOES show up under Google Cloud Print for my @gmail.com account. But on the same machine, same network, same everything, it does not show up there for my @oakhillschool.net account. I can't imagine why that would be.

Google CloudPrint printers are shared between Google accounts. It doesn't matter what network or device you are on, what matters is if it's shared with your Google account. You can go to google.com/cloudprint from the @ gmail.com account and share the printer with your school account or you can set share_scope in your gcp-cups-connector config file to automatically share all your GCP printers with your school account.

Second, no printers show up on a Chromebook when logged in under my @ oakhillschool.net account. Which is, for me, the point of the entire exercise!

If local printing is functional and you're connected to the same network, the local version of your printer should show under "Local Destinations" when you hit CTRL+P on the Chromebook and Change the printer.

— Reply to this email directly or view it on GitHub https://github.com/google/cups-connector/issues/109#issuecomment-146583396 .