COPS : Calibre OPDS PHP Server

[mariosipad]

From the COPS wiki-link:

If you use apache as webserver on your Raspberry just change a setting in config_local.php

    /*
     * use URL rewriting for downloading of ebook in HTML catalog
     * See Github wiki for more information
     *  1 : enable
     *  0 : disable
     */
    $config['cops_use_url_rewriting'] = "0";

to

$config['cops_use_url_rewriting'] = "1";

That should fix it.

[superturrican]

Originally Posted by mariosipad

If you use apache as webserver

Unfortunately, as I posted, that isn't the case:

Originally Posted by superturrican

The log entry in nginx's log folder

I'm using the same rpi for a bunch of services using openmediavault, so changing everything over to apache isn't a viable option at this point. Any ideas for why COPS under nginx might be misbehaving like this?

[mariosipad]

Yeah, my mistake. I missed the nginx in

The log entry in nginx's log folder looked like this

But did you miss my link to https://github.com/seblucas/cops/wik...ting-with-COPS?

Maybe this can help you?

[superturrican]

I did, but it didn't help - for some reason the links still don't download.

[mariosipad]

@superturrican

That's a bummer.

I do not use nginx myself, so I cannot help you with testing.

I am sure you did, but just to be on the safe side, did you also change the config_local.php file?

You could always go to https://github.com/seblucas/cops/issues and ask your question there.

[Pachuqismo]

NAS4Free with COPS: Does anyone have this working using HTTPS?

Hi there,

I'd appreciate some help. I've followed the guidelines and have COPS working on my NAS using any PCs, iOS and Android devices on my LAN.

However, if I make my web server use https then Android devices will not download (the download manager shows files as being 'Queued' and, after a while, they are marked 'Unsuccess...'.

I have the following settings:

-1-
In config_local.php last line -> $config['cops_use_url_rewriting'] = "1"

I suppose it should be "1" so that the 'Auxiliary parameters' will work, but I've also tried to
put it to "0" with no difference (it still works for PCs but not Android devices).

-2-
In NAS4Free webGUI -> Services -> Auxiliary parameters ->

url.rewrite-once = ("/cops/download/(.*)/.*\.(.*)$" => "/cops/fetch.php?data=$1&type=$2",
"^/cops/download/(\d+)/(\d+)/.*\.(.*)$" => "/cops/fetch.php?data=$1&db=$2&type=$3")

Since '/cops/download' doesn't exist I've created it under '/usr/local/www/cops', but I don't think
it would make a difference.

-3-
I've also registered the (self-signed) certificate (part of my NAS4Free install) in my PC's browser
and in Android (i.e. Settings -> Security -> Credential storage -> Install from SD card).

I consider https a must before my server gets online, but I have little idea about how to make COPS downloads available for also Android devices. Any ideas?

[mariosipad]

Your case (if I read and understood correctly):

1 - everything works without https (self-signed-certificate) on Android, PC and iOS

2 - with https (self-signed-certificate) all (navigating and downloading) works on PC and iOS, but downloading does work in Android

To me (and google) it seems a problem of Android with self-signed-certificates.

You could try to install Let's Encrypt on your server. It solves the problem of a self-signed-certificate.

I have neither Nas4Free nor Android (an Android VirtualBox refused to work on my outdated hardware) so I cannot help you testing.

[superturrican]

Originally Posted by mariosipad

I am sure you did, but just to be on the safe side, did you also change the config_local.php file?

Yeah, of course? Why would you think anything else? I'm not completely stup -



Anyway, the URLs are rewritten okay, but the files dont download on anything any more, I get a 404 error page instead. Any ideas? Or is github my only hope?

[CHBMB]

Hi guys,

Long time COPS user here and thought I'd direct you to a couple of docker containers that linuxserver.io (a group I'm involved with) have created for COPS.

I know others have already done so, but I believe ours has a few advantages,

Firstly we allow the end user to edit config_local.php as we have allowed access to this from a mount point on the host, rather than hiding it in the docker container itself.

Secondly, we have included the dependencies required to enable the email feature.

Thirdly, we have produced an ARM version as well as an x86 version to enable running on the RaspberryPi.

Fourthly, it is based on Alpine Linux so has a small footprint and shares a base image with our other containers (we have over 50) Check them out here.

Here are the relevant links.

COPS docker github repository and here is the
COPS dockerhub page for x86 and the
COPS dockerhub page for ARM.

Hope some of you find it useful.

chbmb.

[mariosipad]

@CHBMB

Thank you for "dockerizing" COPS and some other stuff I sometimes use.

Though Docker is (not yet) my cup of tea, I like it that it supports COPS.

[CHBMB]

Originally Posted by mariosipad

@CHBMB

Thank you for "dockerizing" COPS and some other stuff I sometimes use.

Though Docker is (not yet) my cup of tea, I like it that it supports COPS.

I was sceptical at first, but once you get your head around it, it's a really simple way of deploying stuff.

I'm currently running COPS as a docker and then reverse proxying it with an Apache docker. Can install it within minutes now my config is saved. But that's a digression from this thread.

COPS is awesome and I can't imagine using my Kindle without it now, so wanted to give COPS the container it deserves.

[dscottf]

I'm trying to get COPS running on a Raspberry Pi
I've installed Apache and all the dependencies. I've edited the config_local.php and tried using a symlink and the actual path to the calibre library. I have verified that the path is correct. I have tried changing the owner and group of metadata.db. I've chmod 777 the whole damn calibre directory. I've confirmed that my "open_basedir" is commented out in php.ini I have whitelisted my calibre directory in apache.conf.

I am still getting the error in the COPS configuration check:
"File /media/pi/MEDIA/calibre_ebooks/metadata.db not found, Please check"

The problem is clearly not that it is "not found"
I'm stumped and not sure where to look next.

Any got more to look for?

SOLVED! See post #1332

[mariosipad]

@dscottf

Can you post the relevant part of your config_local.php (that what you have changed)?

You probably just missed a "/" at the end of a line.

[dscottf]

"Can you post the relevant part of your config_local.php (that what you have changed)?"

* BEWARE : it has to end with a /
*/
$config['calibre_directory'] = '/media/pi/MEDIA/calibre_ebooks/';

I can confirm it's the correct path:
pi@van:/var/www/html/ebooks $ cd /media/pi/MEDIA/calibre_ebooks/
pi@van:/media/pi/MEDIA/calibre_ebooks $ ls -l
total 14120
drwxrwsrwx 4 pi pi 4096 Aug 31 19:29 Aaron Anderson
drwxrwsrwx 70 pi pi 4096 Aug 31 19:29 Agatha Christie
...
-rwxrwxrwx 1 pi pi 11832320 Aug 31 19:23 metadata.db
-rwxrwxrwx 1 pi pi 14853 Aug 31 19:24 metadata_db_prefs_backup.json
...

[mariosipad]

@dscottf

You are right. There should be nothing wrong with your setup.
Maybe the metadata.db and/or metadata_db_prefs_backup.json are "broken" in some way or there might be something wrong with cops or apache?

What I do when testing cops is: (adapted for your situation)
1 - install cops in /var/www/html/ebooks (or whatever you want to call this directory)
2 - makedir /var/www/html/ebooks/calibre_ebooks
3 - only copy the database files for testing
cp /media/pi/MEDIA/calibre_ebooks/metadata.db /var/www/html/ebooks/calibre_ebooks/metadata.db and
cp /media/pi/MEDIA/calibre_ebooks/metadata_db_prefs_backup.json /var/www/html/ebooks/calibre_ebooks/metadata_db_prefs_backup.json
4 - edit config_local.php
$config['calibre_directory'] = './calibre_ebooks//';

In a browser goto cops (ebooks).

If there is an error then if possible try with other database files (just make a library in Calibre with no more than a few books).

Only on a Synology I had to "fiddle" with "open_basedir". Never on my Raspberry Pi. It should "just work". Ok, maybe change some permissions.