xavi/slcl/main.c, branch v0.2.0

Upgrade to new libweb interface

2023-11-22T23:06:09+00:00

Recent commits from libweb brought a few breaking changes. The one below affected slcl, so it had to be updated according to the new interface: commit 98f5f52461b0c1ab1ee3331722bd32e2db9e1d41 Author: Xavier Del Campo Date: Thu Nov 16 12:23:08 2023 +0100 Split handler_loop from handler_listen Some applications might set up a struct handler object to listen on any port i.e., 0, but still need a way to determine which port number was eventually selected by the implementation. Therefore, handler_listen has been reduced to the server initialization bit, whereas the main loop has been split into its own function, namely handler_loop. Because of these changes, it no longer made sense for libweb to write the selected port to standard output, as this is something now applications can do on their own.

main.c: Treat non-existing upload dir as non-fatal

2023-11-22T23:01:41+00:00

When a user attempts to upload a file into a non-existing directory, slcl would not check whether the directory exists. Then, rename(3) would fail and slcl would treat this as a fatal error, effectively closing itself. Since this is an example of ill-formed user input, it must be treated as a non-fatal error, and instead slcl should return a bad request page.

libweb: Bump new signature for http_decode_url

2023-11-12T00:30:43+00:00

The new signature allows callers to distinguish decoding errors from fatal errors. This is important for slcl to avoid crashing when ill-formed data is received from a client.

main.c: Use BUFSIZ instead of arbitrary value

2023-10-19T13:32:22+00:00

According to C99 7.19.1p3: BUFSIZ is a macro that expands to an integer constant expression that is the size of the buffer used by the setbuf function. In other words, this means BUFSIZ is the most optimal length for a buffer that reads a file into memory in chunks using fread(3).

Implement HEAD support

2023-10-13T23:08:02+00:00

Apply slweb renaming to libweb

2023-10-10T22:08:40+00:00

main.c: Refactor calls to handler_add

2023-09-15T23:46:07+00:00

main.c: Remove string duplication in get_forms

2023-09-09T00:34:26+00:00

slweb now assumes application/x-www-form-urlencoded-data as text, so it now returns a null-terminated string on struct http_post member "data". This removes the need for slcl to call strdup(3) in order to obtain a null-terminated string.

Check directory on uploads

2023-09-08T22:50:22+00:00

For historical reasons, slweb used to check for a name called "dir" on multipart/form-data POST requests. However, stricly speaking this is application logic, so it has been now moved from slweb to slcl. This has resulted in a couple of breaking changes in slweb that had to be updated on slcl.

main.c: Return 1 on null buffer

2023-09-08T22:15:39+00:00

Malformed POST requests might include no payload data. However, this is not considered a fatal error, but wrong user input.