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Comment:Initial work on setting Cache-Control headers

The bit that foxed me was understanding getopts and that the "h" needed a ":"
after it because the option accepts and argument. It'll happily build and run
without this, but segfault when you try to use a "-h" argument.

This definitely and utterly sets a header. It doesn't seem that it's recognised
properly for whatever reason though, e.g here:

- https://developers.google.com/speed/pagespeed/insights/

and here:

- http://highloadtools.com/cachecontrol

But what can you do?

At the moment this just sets a header everywhere for everything being served.
What would be better would be just setting this on certain file types.

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SHA1: a29fb4fb10ecaeea65aecf2c9b78a47a4720396a
User & Date: atomicules 2017-11-25 19:08:28
Context
2017-11-25
22:13
Set cache-control only for images

A bit of an intermediate commit, just investigating what works. I think really
need to be able to pass in a string and a cache-control header and it'll use
strstr to determine which header to set. I.e so you can pass in:

"image" "max-age=604800"
"css" "max-age=86400"

The bit I'm then missing is how to set a catch all or "owtelse" cache-control?
Maybe look for one argument? check-in: dda2552f49 user: atomicules tags: trunk

19:08
Initial work on setting Cache-Control headers

The bit that foxed me was understanding getopts and that the "h" needed a ":"
after it because the option accepts and argument. It'll happily build and run
without this, but segfault when you try to use a "-h" argument.

This definitely and utterly sets a header. It doesn't seem that it's recognised
properly for whatever reason though, e.g here:

- https://developers.google.com/speed/pagespeed/insights/

and here:

- http://highloadtools.com/cachecontrol

But what can you do?

At the moment this just sets a header everywhere for everything being served.
What would be better would be just setting this on certain file types. check-in: a29fb4fb10 user: atomicules tags: trunk

2017-11-24
21:16
Add version 20170201 of Bozohttpd check-in: b786821675 user: atomicules tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to bozohttpd.c.

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		struct	tm *tm;

		tm = gmtime(&sbp->st_mtime);
		strftime(filedate, sizeof filedate,
		    "%a, %d %b %Y %H:%M:%S GMT", tm);
		bozo_printf(httpd, "Last-Modified: %s\r\n", filedate);
	}


	if (type && *type)
		bozo_printf(httpd, "Content-Type: %s\r\n", type);
	if (encoding && *encoding)
		bozo_printf(httpd, "Content-Encoding: %s\r\n", encoding);
	if (sbp) {
		if (request->hr_have_range) {
			len = request->hr_last_byte_pos -








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		struct	tm *tm;

		tm = gmtime(&sbp->st_mtime);
		strftime(filedate, sizeof filedate,
		    "%a, %d %b %Y %H:%M:%S GMT", tm);
		bozo_printf(httpd, "Last-Modified: %s\r\n", filedate);
	}
	if (httpd->cache_control_headers)
		bozo_printf(httpd, "Cache-Control: %s\r\n", httpd->cache_control_headers);
	if (type && *type)
		bozo_printf(httpd, "Content-Type: %s\r\n", type);
	if (encoding && *encoding)
		bozo_printf(httpd, "Content-Encoding: %s\r\n", encoding);
	if (sbp) {
		if (request->hr_have_range) {
			len = request->hr_last_byte_pos -
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	}
	if ((cp = bozo_get_pref(prefs, "directory indexing")) != NULL &&
	    strcmp(cp, "true") == 0) {
		httpd->dir_indexing = 1;
	}
	if ((cp = bozo_get_pref(prefs, "public_html")) != NULL) {
		httpd->public_html = bozostrdup(httpd, NULL, cp);



	}
	httpd->server_software =
	    bozostrdup(httpd, NULL, bozo_get_pref(prefs, "server software"));
	httpd->index_html =
	    bozostrdup(httpd, NULL, bozo_get_pref(prefs, "index.html"));

	/*








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	}
	if ((cp = bozo_get_pref(prefs, "directory indexing")) != NULL &&
	    strcmp(cp, "true") == 0) {
		httpd->dir_indexing = 1;
	}
	if ((cp = bozo_get_pref(prefs, "public_html")) != NULL) {
		httpd->public_html = bozostrdup(httpd, NULL, cp);
	}
	if ((cp = bozo_get_pref(prefs, "Cache-Control headers")) != NULL) {
		httpd->cache_control_headers = bozostrdup(httpd, NULL, cp);
	}
	httpd->server_software =
	    bozostrdup(httpd, NULL, bozo_get_pref(prefs, "server software"));
	httpd->index_html =
	    bozostrdup(httpd, NULL, bozo_get_pref(prefs, "index.html"));

	/*
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Changes to bozohttpd.h.

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	int		 nsock;		/* number of above */
	struct pollfd	*fds;		/* current poll fd set */
	int		 request_times;	/* # times a request was processed */
	int		 dir_indexing;	/* handle directories */
	int		 hide_dots;	/* hide .* */
	int		 process_cgi;	/* use the cgi handler */
	char		*cgibin;	/* cgi-bin directory */

#ifndef NO_LUA_SUPPORT
	int		 process_lua;	/* use the Lua handler */
	SIMPLEQ_HEAD(, lua_state_map)	lua_states;
#endif
	void		*sslinfo;	/* pointer to ssl struct */
	int		dynamic_content_map_size;/* size of dyn cont map */
	bozo_content_map_t	*dynamic_content_map;/* dynamic content map */








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	int		 nsock;		/* number of above */
	struct pollfd	*fds;		/* current poll fd set */
	int		 request_times;	/* # times a request was processed */
	int		 dir_indexing;	/* handle directories */
	int		 hide_dots;	/* hide .* */
	int		 process_cgi;	/* use the cgi handler */
	char		*cgibin;	/* cgi-bin directory */
	char		*cache_control_headers;	/* Cache-Control headers */
#ifndef NO_LUA_SUPPORT
	int		 process_lua;	/* use the Lua handler */
	SIMPLEQ_HEAD(, lua_state_map)	lua_states;
#endif
	void		*sslinfo;	/* pointer to ssl struct */
	int		dynamic_content_map_size;/* size of dyn cont map */
	bozo_content_map_t	*dynamic_content_map;/* dynamic content map */
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Changes to main.c.

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	bozowarn(httpd, "   -b\t\t\tbackground and go into daemon mode");
	bozowarn(httpd, "   -f\t\t\tkeep daemon mode in the foreground");
	bozowarn(httpd,
		"   -i address\t\tbind on this address (daemon mode only)");
	bozowarn(httpd, "   -P pidfile\t\tpath to the pid file to create");
#endif
	bozowarn(httpd, "   -S version\t\tset server version string");

	bozowarn(httpd, "   -t dir\t\tchroot to `dir'");
	bozowarn(httpd, "   -U username\t\tchange user to `user'");
	bozowarn(httpd,
		"   -e\t\t\tdon't clean the environment (-t and -U only)");
	bozowarn(httpd,
		"   -v virtualroot\tenable virtual host support "
		"in this directory");








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	bozowarn(httpd, "   -b\t\t\tbackground and go into daemon mode");
	bozowarn(httpd, "   -f\t\t\tkeep daemon mode in the foreground");
	bozowarn(httpd,
		"   -i address\t\tbind on this address (daemon mode only)");
	bozowarn(httpd, "   -P pidfile\t\tpath to the pid file to create");
#endif
	bozowarn(httpd, "   -S version\t\tset server version string");
	bozowarn(httpd, "   -h string\t\tCache-Control headers");
	bozowarn(httpd, "   -t dir\t\tchroot to `dir'");
	bozowarn(httpd, "   -U username\t\tchange user to `user'");
	bozowarn(httpd,
		"   -e\t\t\tdon't clean the environment (-t and -U only)");
	bozowarn(httpd,
		"   -v virtualroot\tenable virtual host support "
		"in this directory");
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	bozo_set_defaults(&httpd, &prefs);

	/*
	 * -r option was removed, do not reuse it for a while
	 */

	while ((c = getopt(argc, argv,
	    "C:EGHI:L:M:P:S:U:VXZ:bc:defhi:np:st:uv:x:z:")) != -1) {
		switch (c) {

		case 'L':
#ifdef NO_LUA_SUPPORT
			bozoerr(&httpd, 1,
				"Lua support is not enabled");
			/* NOTREACHED */








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	bozo_set_defaults(&httpd, &prefs);

	/*
	 * -r option was removed, do not reuse it for a while
	 */

	while ((c = getopt(argc, argv,
	    "C:EGHI:L:M:P:S:U:VXZ:bc:defh:i:np:st:uv:x:z:")) != -1) {
		switch (c) {

		case 'L':
#ifdef NO_LUA_SUPPORT
			bozoerr(&httpd, 1,
				"Lua support is not enabled");
			/* NOTREACHED */
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			bozo_set_pref(&httpd, &prefs, "log to stderr", "true");
			break;

		case 'S':
			bozo_set_pref(&httpd, &prefs, "server software",
				      optarg);
			break;




		case 'Z':
#ifdef NO_SSL_SUPPORT
			bozoerr(&httpd, 1, "ssl support is not enabled");
			/* NOT REACHED */
#else
			/* make sure there's two arguments */
			if (argc - optind < 1)








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			bozo_set_pref(&httpd, &prefs, "log to stderr", "true");
			break;

		case 'S':
			bozo_set_pref(&httpd, &prefs, "server software",
				      optarg);
			break;
		case 'h':
			bozo_set_pref(&httpd, &prefs, "Cache-Control headers",
				      optarg);
			break;
		case 'Z':
#ifdef NO_SSL_SUPPORT
			bozoerr(&httpd, 1, "ssl support is not enabled");
			/* NOT REACHED */
#else
			/* make sure there's two arguments */
			if (argc - optind < 1)
︙︙

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