#1275 Enhance validation of Amazon-hosted cover scans

[Ahasuerus]

Enhance validation of Amazon-hosted cover scans. As per Dirk Stoecker, the valid URL formats for Amazon-hosted images are:

New Amazon format:

• /images/
• one of P, I or G
• 10 digits which can be letters, numbers or + and - (%2B is converted to + before)
• optional letter L or S
• the cropping entry
• gif, jpg or png as extension

Old Amazon format:

• url.../images/
• G
• 2 hex digits
• 2 hex digits
• 22 or 24 hex digits
• .L
• extension

The proposed regexes are:

/images/[PIG]/[0-9A-Za-z+-]{10}[LS]?(\._CR[0-9]+,[0-9]+,[0-9]+,[0-9]+)?\.(gif|png|jpg)$
and
\.images-amazon\.com/images/G/0[1-3]/ciu/[0-9a-f]{2}/[0-9a-f]{2}/[0-9a-f]{22,24}\.L\.(gif|png|jpg)$

A "diff" patch file is attached.

[Anonymous]

Note: Somehow the mail I sent contained not the last one, but the diff which still contains the debug text: " + value.replace('%2B','+')" in the warning="" line must be removed. I though the mail program always sends the last version when I overwrite the file. Seems not.

[Ahasuerus]

Part 1 - Cleanup report:

edit/cleanup_report.py
nightly/nightly_job.py

Installed in SVN 413 on 2019-05-10. Keeping the FR open since we still need to enhance the post-submission warning.

[Ahasuerus]

Part 2 - Post-submission warnings:

common/viewers.py

Installed in SVN 415 on 2019-05-11. Closing the FR.

[Ahasuerus]

Re-opening the FR in order to disallow 13-character fragments in image URLs.

[Ahasuerus]

Part 3 - Disallow 13-character URL fragments:

edit/cleanup_report.py
nightly/nightly_job.py

Installed in SVN 417 on 2019-05-13. Re-closing the FR.