Lighttpd: mod_security via mod_magnet In most large enterprises there is a requirement to comply with various standards. The hot potato in the Ecommerce space at the moment (and has been for a few years!) is PCI-DSS. Migrating from Lighttpd: mod_secdownload show-stopper? Hi, Privet:) I would like to switch all my media servers from Lighttpd 1.5.0 to latest Nginx version but I. Hi, Xi Wang discovered the following issue in lighttpd: for http auth we need to base64-decode user input; the allowed character range includes non ASCII characters.

README.md secdl Secdl is a Golang implementation of the famous module Difference with ModSecDownload The ModSecDownload module has a limitation to generate only 'never' expirable tokens. Because the timestamp is checked at the server. The secdl package implements expiry with the following different grades: 10 minutes ( 10m), 1 hour ( h), 1 day ( d), 1 week ( 1w), 2 weeks, ( 2w), 1 month ( m) and never ( n). These are carefully chosen and also used by snippet paste-bins (e.g ). When a token is decoded by secdl it loops over the list of known expire times and then checks for a match against the re-generated token. Usage and installation Make sure GOPATH and GOBIN is correctly set. $ go get -v github.com/xor-gate/secdl/cmd/secdl $ secdl -listen=':8181' -root='/tmp' -prefix='/' [secdl] Serving HTTP at:8181 from path '/tmp' (prefix '/', secret '1234') Why The Lighttpd ModSecDownload module was created because of the problem described below.

And the secdl package is based on this ideas. Serving secured downloads which will expire. There are multiple ways to handle this: • Use the webserver and the internal HTTP authentication • Use the application to authenticate and send the file through the application Both ways have limitations: • Webserver • Pros • Fast download • No additional system load • Cons • Inflexible authentication handling • Application • Pros • Integrated into the overall layout • Very flexible permission management • Cons • The download occupies an application thread/process A simple way to combine the two ways could be: • App authenticates user and checks permissions to download the file. • App redirects user to the file accessable by the webserver for further downloading. • The webserver transfers the file to the user.

As the webserver doesn't know anything about the permissions used in the app, the resulting URL would be available to every user who knows the URL. The secdl package removes this problem by introducing a way to authenticate a URL for a specified time. The application has to generate a token and a timestamp which are checked by the webserver before it allows the file to be downloaded by the webserver.

The generated URL has the following format: /// Which looks like: 'yourserver.com/bf32df9cdb54894b22e09d0ed87326fc/435cc8cc/my/shared/folders/secure.tar.gz token is an MD5 checksum of: • A secret string (user supplied) • Relative path (starts with /) • Unix timestamp, hexadecimal encoded As you can see, the token is not bound to the user at all. One Shot 90 Vol 1. The only limiting factor is the timestamp which is used to invalidate the URL. If the user tries to fake the URL by choosing a random token, HTTP status 403 Forbidden will be sent out.

If the timeout is reached, HTTP status 410 Gone will be sent. If token and timeout are valid, the is appended to the configured prefix and passed to the normal internal file transfer functionality. This might lead to HTTP status 200 OK or 404 Not Found. Token generation Ensure that the token is also hexadecimal encoded.

Manual Caldera Fagor Contract Ce 20e Pdf there. Depending on the programming language you use, there might be no extra step for this. For instance, in PHP, the MD5 function returns the Hex value of the digest. If, however, you use a language such as Java or Python, the extra step of converting the digest into Hex is needed. See also A reference webserver implementation in Golang can be found here: License.