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Old 06-14-2011, 05:43 PM   #1
niroma
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[solved] wget pdf newspaper from site?

Hi all,

I'm new on this forum and posting this since I couldn't find any postings covering this problem.

I recently bought a PB902Pro and the intended use is to download and read a daily newspaper on it. Problem is that the poor webbrowser (midori), used for the downloading, probably will make my wife wanna go back to the real paper format in a near future.

The newspaper is in PDF format and I have found a way to download it using wget on my Ubuntu-PC. Encourraged by this I searched this forum and found the very useful rsh script by review. Sadly enough the wget in the PB902 doesn't seem to handle cookies and thats where I now got stuck.

The site (http://www1.nwt.se/script/cgiip.exe/...nwt/login.html) uses cookies to identify the user after logging in. On the Ubuntu machine I can use the option --load-cookies to load a cookie file containing my username and password, but this doesen't seem to be possible on the PB902.

1. Is there a way to replace the built in wget?
2. Can I use some other available bash command(s) to solve this?
3. Is there a way to make midori store the login information?
4. Is it possible to somehow send keypresses to midori or control it by cli/script?

My aim is to create a bash-script for the PB902 that can logon to the site, find the latest issue of the newspaper pdf and finally download it to the memory card (/mnt/ext2).

Any hints are highly appreciated!

Last edited by niroma; 06-17-2011 at 01:00 PM. Reason: Problem solved
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Old 06-14-2011, 10:50 PM   #2
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Quite a while back, LoneTech put up a self-made SDK which was based on a Debian arm-based distribution running in a qemu emulator. The executables in that Debian system are binary-compatible with the PB Pro series systems. So, you can get a copy of his SDK, copy the wget executable from it onto your PB device along with the cookie files and some shell scripts to run program, and you should be set to go.

I copied the 'find' utility to my PB device that way, and it works like a charm for me.

If this sounds beyond your comfort level, PM me and we'll figure out how to get a copy of wget to you. Getting the whole system yourself is handy if you want to later add other utilities, though.
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Old 06-15-2011, 08:16 AM   #3
jekvb
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Why not use Calibre for this action?
Calibre fetches the newspaper.
The newspaper waits in Calibre, until a user wants to pull the paper to his (or her) e-reader.
It's a pity there is no cron function in PocketBook; in that case you could fire up a script, which opens a connection and does the newpaper pull automagically.
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Old 06-15-2011, 09:41 AM   #4
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Quote:
Originally Posted by jekvb View Post
Why not use Calibre for this action?
Calibre fetches the newspaper.
The newspaper waits in Calibre, until a user wants to pull the paper to his (or her) e-reader.
It's a pity there is no cron function in PocketBook; in that case you could fire up a script, which opens a connection and does the newpaper pull automagically.
One thing that stands out is a wireless mode of use, and it'll be initiated from the reader.
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Old 06-15-2011, 11:16 AM   #5
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Quote:
Originally Posted by J.C. View Post
One thing that stands out is a wireless mode of use, and it'll be initiated from the reader.
You could start a "script.app" manually, and do this anytime as you please so....
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Old 06-15-2011, 03:59 PM   #6
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Thank you all for your fast replies!

rkomar's suggestion sounds like what I was looking for. I have downloaded the fsimage.qcow2 from http://donkey.vernier.se/~yann/pocketbook/armeabi/ where I guess the new wget command should be found, but how can I access it?
Can I mount the fsimage somehow?
I'm not familiar with qemu (yet).
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Old 06-15-2011, 05:05 PM   #7
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You need to install qemu on your system, and download the initrd-img-2.6..., vmlinuz-2.6... and README files from LoneTech, as well. The exact instructions on how to run qemu are in the README file. Once you get qemu running and log in, you can 'scp' the file to your host system:

Code:
scp /usr/bin/wget 10.0.2.2:/tmp/
assuming that you have a sshd daemon running on the host.

'qemu-img' can be used to convert the qcow2 disk image to another format, but I personally haven't tried that route.
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Old 06-15-2011, 05:28 PM   #8
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After a lot of googling I did succeed in getting wget out of the fsimage.qcow2 file by installing qemu and nbd-client + following this guide:
http://blog.loftninjas.org/2008/10/2...u-disk-images/
I had to leave the command:
#sudo qemu-nbd fsimage.qcow2
running in one terminal window and accessing the image from another window after issuing:
#nbd-client localhost 1024 /dev/nbd0
and then mounting with:
#mount /dev/nbd0p1 /mnt

But how can I make the new wget command overlay the older one? Where do I put it on the PB902?
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Old 06-15-2011, 06:02 PM   #9
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Thanks for your help rkomar!

I found out that I (of course!!!) could use the new wget by simply supply its path on the command line. Kind of stupid of me not to know/remember that.

Anyway, now I got a working wget and I can move on to writing the "get my newspaper"-script.
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Old 06-15-2011, 06:03 PM   #10
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Quote:
Originally Posted by niroma View Post
But how can I make the new wget command overlay the older one? Where do I put it on the PB902?
If you're just going to run it via scripts, you can put it pretty well anywhere you have write access. Something like
Code:
/mnt/ext1/system/bin
would make sense. If you put the scripts in
Code:
/mnt/ext1/applications
, then you can start them directly from the Applications tab (as long as they don't need any arguments). Just make sure to use the full path to your version of wget in your scripts.

Or are you trying to replace the version of wget used by an internal application on the device?
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Old 06-15-2011, 06:32 PM   #11
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At first I thought that I had to replace the built in wget, but as you said, it works to supply the path to the new one.

I have adopted both your suggested locations.
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Old 06-16-2011, 04:06 PM   #12
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Script working from rsh but not from applications!?

Hi,

I have now made a script that works without trouble when executed from the remote shell on the PB902 mentioned above.
Now the problem is that when the script is launched from my "go_get_nwt.app" in the /mnt/ext1/applications folder from the PB902 (not remote), then the hourglass is shown for a couple of seconds and after that the script ends, without downloading anything. Why???

This is the code for go_get_nwt.app
Code:
#!/bin/sh
exec /mnt/ext2/nwtscript/get_nwt.app
and this is for the get_nwt.app
Code:
#!/bin/sh

#Get page containing the list of available newspapers
/mnt/ext1/system/bin/wget --load-cookies /mnt/ext2/nwtscript/cookies.txt http://www1.nwt.se/script/cgiip.exe/WService=nwt/etidning.html -P /var/tmp &> /dev/null

#Extract a list containing only the relevant rows
cat /var/tmp/etidning.html | grep 'http://np.netpublicator.com/netpublication' > /var/tmp/lista.txt

#Extract the newest newspapers id number
tidnnr=$(awk -F'=' 'NR==1 {print substr($2, 45, 9) }' /var/tmp/lista.txt)

#Extract its filename
filnamn=$(awk -F'=' 'NR==1 {print substr($4, 2, length($4)-3)".pdf" }' /var/tmp/lista.txt)

#Download the actual newspaper using built in wget.
wget http://np.netpublicator.com/np/$tidnnr/$filnamn -P /mnt/ext2 &> /dev/null

#Clean up 
rm /var/tmp/lista.txt
rm /var/tmp/etidning.html
I have tested the script row by row using rsh to the PB902 and then it works flawlessly.
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Old 06-16-2011, 04:26 PM   #13
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Maybe you're having the same problem that yuryfdr had with his midi music player: the device just goes to sleep if there aren't any UI events in some short amount of time. The way around this was to bracket his script with the lines:

Code:
echo test > /sys/power/wake_lock
<script code goes here>
echo test > /sys/power/wake_unlock
I suspect that it would be better to set up an exit "trap" for the last line to ensure that it always gets called, no matter how the script ends:

Code:
trap 'echo test > /sys/power/wake_unlock' EXIT
Otherwise, battery usage will go up if the device can't sleep during inactivity.

Last edited by rkomar; 06-16-2011 at 04:30 PM.
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Old 06-16-2011, 06:41 PM   #14
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That sounded like a good idea. Added the first echo line and the trap line to the beginning of my script but it didn't make any difference. Strange.

I made an debug version of the script that writes text after each commad to a log file on /mnt/ext2. Every command seems to be run according to the log file but still nothing downloaded. The log file gets a text for each command.

Also tried to let the script copy a downloaded version of etidning.html from /mnt/ext2 to /var/tmp if the reason was something wrong with the new wget but got the same result.

In the debug version I added sleep 5 to the beginning and that command seems to be run as well as the echo's, but not the wget.

Might it be related to access rights or the user that calls the script?
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Old 06-16-2011, 08:44 PM   #15
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Quote:
Originally Posted by niroma View Post
In the debug version I added sleep 5 to the beginning and that command seems to be run as well as the echo's, but not the wget.

Might it be related to access rights or the user that calls the script?
It might be a permissions problem. Try to delete all previously generated files (including the log file) before running the script. If you were a different user when logged in via rsh, it could keep the normal 'reader' user from overwriting existing files.

Also, try using your freshly installed version of wget to download the newspaper if it works in getting the HTML file in the first line.

Finally, I'm not familiar with '&>' in sh scripts. Are you sure you used that when logged in via rsh?
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