int show_about(http_request req, http_response page)
{
const char* html =
"<p>So what's a web cache good for anyway? The objective"
" for this web cache is to offload high traffic web sites"
" by moving static data to a separate web server and"
" serve the requests for the static data as fast as possible,"
" so that the original web server can focus on its main tasks."
"<p>The Highlander web cache loads data from disk at startup"
" and never reads from disk again, unless asked to do so."
" This way the data(images, files, anything static) is always"
" available in memory and can be sent to the client with"
" zero disk access and zero system calls except for the network"
" write() calls."
"<p>The Highlander web cache is very portable between POSIX"
" systems, meaning that you can scale both up and down as"
" your needs changes."
;
(void)req;
if (!add_page_start(page, PAGE_ABOUT))
return HTTP_500_INTERNAL_SERVER_ERROR;
if (!response_add(page, html))
return HTTP_500_INTERNAL_SERVER_ERROR;
if (!add_page_end(page, NULL))
return HTTP_500_INTERNAL_SERVER_ERROR;
return 0;
}
int show_cache(http_request req, http_response page)
{
char msgbuf[100] = { '\0' };
const char *action;
if (!add_page_start(page, PAGE_CACHE)
|| !response_href(page, "/cache?a=reload", "reload cache")
|| !response_br(page))
return HTTP_500_INTERNAL_SERVER_ERROR;
if ( (action = request_get_parameter_value(req, "a")) == NULL) {
/* No action */
}
else if (strcmp(action, "reload") == 0) {
size_t files;
if ( (files = reload_cache()) == 0)
strcpy(msgbuf, "No files were added to the cache, an error probably occured");
else {
sprintf(msgbuf, "Added %zu files to cache", files);
}
}
if (!add_page_end(page, msgbuf))
return HTTP_500_INTERNAL_SERVER_ERROR;
return HTTP_200_OK;
}
