Dump eMail image to directory

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# 1  
Old 05-25-2011
Question Dump eMail image to directory

Hello everyone!
I'm new and very happy to be here!

Trying to create a quick idea:
I want to take images sent to an eMail address on my domain (pics@mywebsite.com), and copy them into a directory.
There will then be a page that displays those images.

How could I go about this?
I'm a script n00b, yet I can keep at it and ask for help until I get it.
Yet I have no direction as to how connect the eMails with the directory in the server.

The server is hosted and it's running CentOS if I'm not mistaken.

If you guys could point me in the right direction, I'd appreciate it a lot.
Thank you very much for your time and help! Smilie
# 2  
Old 05-25-2011
If I understand this, you want to accept emails that have embedded images, storing them in a directory that your web server can access to let you see the list and viw individual images.
  1. Email can be captured with a ~/.forward file containing '|executable_file', although this is not a well thought of aspect of sendmail, security-wise. Each arriving email goes to stdin of a separate process running executable_file, which can be a script or binary execuatble.
  2. Email is mime encoded, so you need something to take email files and locate the encoded image(s), decode it to binary and write it to a dir. Usually, images are base 64 encoded, but it depends on the email client, might be uucp encoded or raw binary.
  3. You need to devise a naming method.
  4. You need a web server allowing open directory listing or a web service to format the list into a web page where you can review the list and select images to view.
This User Gave Thanks to DGPickett For This Post:
# 3  
Old 05-26-2011
Hello DGPickett!
Thank you very much for the reply, and the direction!
Greately appreciated.

From what you wrote, I have my work cut out for the future.

1. I'm going to research the ~/.forward file you mention.
2. EMail encoding: I'll also research this, as I have no idea.
3. The naming method... I'll figure it out, although I thought to give it the date+time to the second.
4. I think this point is the only one I "more or less" understand.
If the images are inside a directory, I know I can do a script that will list all the files in the directory, and output those names.
Then do a page that will display those images.

Well, I really thank you for the direction!

I will research these things, and report back my progress here.

Much thanks!!
# 4  
Old 05-26-2011
Work in stages. First, set up the .forward to collect mail as files. Then, see what they have in them for your mail clients. It reads pretty well.

If you cannot get the .forward to work, you can cron every n minutes a script that calls mail to fetch each message while there are messages.

If you need a quick base 64 decoder, I have a C version. Of course, it is probably hiding somewhere in UNIX/LINUX/GNU!
# 5  
Old 05-26-2011
Thank you!
These forums rock.
Will start working on it step-by-step tonight when I get out of the second job.
# 6  
Old 05-26-2011
you can use something like this in your .forward, or your .procmailrc (not sure if in procmail is safer or not):
| uudeview -a -d -i -q

uudeview is available as a CentOS rpm from the Dag section of the rpmforge repo: RPMforge/Using - RPMRepo Wiki

I've only tested this with a saved file, not with a live mailbox
This User Gave Thanks to kalak For This Post:
# 7  
Old 05-26-2011
Originally Posted by DGPickett
If you need a quick base 64 decoder, I have a C version. Of course, it is probably hiding somewhere in UNIX/LINUX/GNU!
Right you are, it is: "openssl" can encode/decode to base64:

openssl enc -base64 -in /path/to/inputfile -out /path/to/outputfile

or to stdout:
openssl enc -base64 -in /path/to/inputfile

you can also use <stdin> for input:
echo "This is to be encoded." | openssl enc -base64

Decode: is done by adding option "-d"
openssl enc -base64 -d -in /path/to/encoded.file -out /path/to/decoded.file

...or analogous to the encoding variants.

I hope this helps.

These 2 Users Gave Thanks to bakunin For This Post:
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