GopherProxy

	Add REST handling example to manpage. - geomyidae - A small C-based gopherd.
	git clone git://bitreich.org/geomyidae/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfri…
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	---
	commit 28c6362fb2bcbe837e46883e60eb2e89efc59692
	parent 81f3ec7d02246ab56d7fcc57ce18d546a3fe4b6f
	Author: Christoph Lohmann <[email protected]>
	Date: Sat, 22 Jul 2023 17:51:54 +0200

	Add REST handling example to manpage.

	Diffstat:
	M geomyidae.8 \| 45 ++++++++++++++++++++++++-----…
	M handlr.c \| 2 --

	2 files changed, 35 insertions(+), 12 deletions(-)
	---
	diff --git a/geomyidae.8 b/geomyidae.8
	@@ -331,22 +331,28 @@ Search Veronica II
	Telnet to SDF Public Access Unix System
	.El
	.Sh DYNAMIC CONTENT (gopher CGI)
	-There are two options provided for dynamic content creation: standard CGI (
	+There are two options provided for dynamic content creation and a special
	+case: standard CGI (
	.Ic .cgi
	-) and dynamic CGI
	+), dynamic CGI
	(
	.Ic .dcgi
	-). Despite the names, both can accept input and generate dynamic content;
	-the only difference is the latter re-formats it's output so it appears to
	+) and http compatibility mode.
	+Despite the names, all three can accept input and generate dynamic content;
	+the only difference is that dcgi re-formats it's output so it appears to
	the server as a standard geomyidae index (.gph) file. This makes the
	creation of on-the-fly gopher directories much easier (see examples).
	All scripts must be under the gopher root directory and be executable by
	the same user:group running geomyidae. Consequently, it is best to use
	the -u and -g server options to avoid running as root.
	.Pp
	+Executed scripts get the full I/O of the socket bound to stdin and stdout. You
	+are thus able to write long-lasting streaming services. Radio or TV stations o…
	+gopher are possible that way.
	+.Pp
	Both .cgi and .dcgi scripts have the same argument call structure (as seen by …
	.Bd -literal -offset indent
	-executable.[d]cgi $search $arguments $host $port
	+executable.[d]cgi $search $arguments $host $port $traversal $selector
	.Ed
	.Pp
	where
	@@ -355,8 +361,8 @@ search = query string (type 7) or "" (type 0)
	arguments = string behind "?" in selector or ""
	host = server's hostname ("localhost" by default)
	port = server's port ("70" by default)
	-traversal = remaining path from path traversal
	-selector = raw selector
	+traversal = remaining path from path traversal in REST case
	+selector = raw selector or full req (See http compatibility mode.)
	.Ed
	.Pp
	All terms are tab-separated (per gopher protocol) which can cause some
	@@ -381,7 +387,7 @@ PATH_TRANSLATED = absolute path with script which is execut…
	QUERY_STRING = arguments (See above.)
	SELECTOR = raw selector
	REQUEST = raw selector
	-TRAVERSAL = traversel (See above.)
	+TRAVERSAL = traversal (See above.)
	REMOTE_ADDR = IP of the client
	REMOTE_HOST = REMOTE_ADDR
	REQUEST_METHOD = `GET'
	@@ -396,6 +402,23 @@ SEARCHREQUEST = search (For backwards compatibility.)
	HTTPS and GOPHERS = set, if TLS is used
	.Ed
	.
	+.Ss The REST path handling
	+If a client requests a path in a selector, which has no corresponding
	+file or path found, geomyidae will try to traverse from the
	+.Fl b Ar base
	+path until a path component / directory is not found. Then geomyidae
	+tries to find some index.dcgi or index.cgi file in the last existing
	+directory. If this is found and the index files are executable, geomyidae
	+will execute them using the traversal and TRAVERSAL parameter and
	+environment variable being set to the rest path.
	+.Bd -literal -offset indent
	+Selector: /some/v1/service/add/something?args=value
	+-> /some/v1/service exists
	+-> /some/v1/service/index.dcgi exists
	+-> /some/v1/service/index.dcgi "" "args=value" $host $port
	+"/add/something" "/some/v1/service/add/something?args=value" is called
	+.Ed
	+.
	.Ss Some CGI Examples
	Note: these are a very simple examples with no fitness checks with respect
	to safety/security.
	@@ -490,9 +513,11 @@ Phrases_of_the_Ages.txt
	Care should to be exercised to avoid creating miss-Typed entries, unwanted
	recursions, and/or unintended writes in the working directory.
	.Sh HAPROXY SUPPORT
	-Geomyidae has
	+geomyidae has
	.Em HAProxy
	-support. It can be enabled using the -y parameter.
	+support. It can be enabled using the
	+.Fl y
	+parameter.
	.
	.Sh LOG FILES
	The log file (ie. /var/log/gopherd.log) has the following structure:
	diff --git a/handlr.c b/handlr.c
	@@ -159,8 +159,6 @@ handlecgi(int sock, char file, char port, char *base, cha…
	filec = xstrdup(file);
	path = dirname(filec);
	script = path + strlen(path) + 1;
	- printf("path = %s\n", path);
	- printf("script = %s\n", script);

	if (sear == NULL)
	sear = "";