mirror of
https://github.com/sheumann/hush.git
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109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
/*
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* Copyright (c) 2009 Denys Vlasenko <vda.linux@googlemail.com>
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*
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* Licensed under GPLv2, see file LICENSE in this tarball for details.
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*/
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/*
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* This program is a CGI application. It processes server-side includes:
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* <!--#include file="file.html" -->
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*
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* Usage: put these lines in httpd.conf:
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*
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* *.html:/bin/httpd_ssi
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* *.htm:/bin/httpd_ssi
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*/
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/* Build a-la
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i486-linux-uclibc-gcc \
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-static -static-libgcc \
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-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 \
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-Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Werror \
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-Wold-style-definition -Wdeclaration-after-statement -Wno-pointer-sign \
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-Wmissing-prototypes -Wmissing-declarations \
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-Os -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer \
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-ffunction-sections -fdata-sections -fno-guess-branch-probability \
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-funsigned-char \
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-falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 \
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-march=i386 -mpreferred-stack-boundary=2 \
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-Wl,-Map -Wl,link.map -Wl,--warn-common -Wl,--sort-common -Wl,--gc-sections \
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httpd_ssi.c -o httpd_ssi
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*/
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/* Size (i386, static uclibc, approximate):
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text data bss dec hex filename
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8931 164 68552 77647 12f4f httpd_ssi
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <dirent.h>
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#include <time.h>
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static char line[64 * 1024];
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/*
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* Currently only handles directives which are alone on the line
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*/
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static void process_includes(const char *filename)
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{
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FILE *fp = fopen(filename, "r");
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if (!fp)
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exit(1);
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#define INCLUDE "<!--#include file=\""
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while (fgets(line, sizeof(line), fp)) {
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char *closing_dq;
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/* FIXME: output text leading to INCLUDE first */
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if (strncmp(line, INCLUDE, sizeof(INCLUDE)-1) != 0
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|| (closing_dq = strchr(line + sizeof(INCLUDE)-1, '"')) == NULL
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/* or strstr(line + sizeof(INCLUDE)-1, "\" -->")? */
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) {
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fputs(line, stdout);
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continue;
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}
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*closing_dq = '\0';
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/* FIXME:
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* (1) are relative paths with /../ etc ok?
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* (2) if we include a/1.htm and it includes b/2.htm,
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* do we need to include a/b/2.htm or b/2.htm?
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* IOW, do we need to "cd $dirname"?
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*/
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process_includes(line + sizeof(INCLUDE)-1);
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/* FIXME: this should be the tail of line after --> */
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putchar('\n');
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}
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}
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int main(int argc, char *argv[])
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{
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if (!argv[1])
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return 1;
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/* Seen from busybox.net's Apache:
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* HTTP/1.1 200 OK
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* Date: Thu, 10 Sep 2009 18:23:28 GMT
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* Server: Apache
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* Accept-Ranges: bytes
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* Connection: close
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* Content-Type: text/html
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*/
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printf(
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/* "Date: Thu, 10 Sep 2009 18:23:28 GMT\r\n" */
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/* "Server: Apache\r\n" */
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/* "Accept-Ranges: bytes\r\n" - do we really accept bytes?! */
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"Connection: close\r\n"
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"Content-Type: text/html\r\n"
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"\r\n"
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);
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process_includes(argv[1]);
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return 0;
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}
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