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Adding 404 error custom HTML page --e404

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Said Bakr 2022-02-16 19:49:19 +02:00
parent e8865bda52
commit ec32d2b284
3 changed files with 48 additions and 6 deletions
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39
darkhttpd.c
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@ -293,6 +293,9 @@ static int max_connections = -1; /* kern.ipc.somaxconn */
static const char *index_name = "index.html";
static int no_listing = 0;
static char *e_404 = "";
static char *e_500 = "";
static int sockin = -1; /* socket to accept connections from */
#ifdef HAVE_INET6
static int inet6 = 0; /* whether the socket uses inet6 */
@ -736,6 +739,20 @@ static void parse_extension_map_file(const char *filename) {
}
fclose(fp);
}
/**
* Read the custom error HTML file
*/
static char *readFile(char *filename) {
char* buffer = NULL;
FILE *fp = fopen (filename, "rb");
if (fp == NULL)
err(1, "fopen(\"%s\")", filename);
size_t len;
ssize_t bytes_read = getdelim( &buffer, &len, '\0', fp);
if ( bytes_read != -1) {
return buffer;
}
}
/* Uses the mime_map to determine a Content-Type: for a requested URL. This
* bsearch()es mime_map, so make sure it's sorted first.
@ -945,6 +962,8 @@ static void usage(const char *argv0) {
"\t\tIf the client requested HTTP, forward to HTTPS.\n"
"\t\tThis is useful if darkhttpd is behind a reverse proxy\n"
"\t\tthat supports SSL.\n\n");
printf("\t--e404 Custom 404 Error\n"
"\t\tEnable custom 404 page. Make file named e404.html in the same path of the server executable file\n\n");
#ifdef HAVE_INET6
printf("\t--ipv6\n"
"\t\tListen on IPv6 address.\n\n");
@ -1161,10 +1180,13 @@ static void parse_commandline(const int argc, char *argv[]) {
else if (strcmp(argv[i], "--forward-https") == 0) {
forward_to_https = 1;
}
else if (strcmp(argv[i], "--e404") == 0){
e_404 = readFile("e404.html");
}
#ifdef HAVE_INET6
else if (strcmp(argv[i], "--ipv6") == 0) {
inet6 = 1;
}
}
#endif
else
errx(1, "unknown argument `%s'", argv[i]);
@ -1523,15 +1545,20 @@ static void default_reply(struct connection *conn,
va_end(va);
/* Only really need to calculate the date once. */
rfc1123_date(date, now);
conn->reply_length = xasprintf(&(conn->reply),
"<html><head><title>%d %s</title></head><body>\n"
rfc1123_date(date, now);
char *defContent = "<html><head><title>%d %s</title></head><body style=\"background:tomato\">\n"
"<h1>%s</h1>\n" /* errname */
"%s\n" /* reason */
"<hr>\n"
"%s" /* generated on */
"</body></html>\n",
"</body></html>\n";
if (errcode == 404 && e_404 != NULL){
defContent = e_404;
}
conn->reply_length = xasprintf(&(conn->reply),
defContent,
errcode, errname, errname, reason, generated_on(date));
free(reason);

15
e404.html Normal file
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@ -0,0 +1,15 @@
<html>
<head>
<meta charset="utf8">
<title>404 Not Found</title>
<style>
body{background:tomato;color:navy;padding:10px;font-family:sans-serif;font-size:24px;text-align:center;}
</style>
</head>
<body>
<h1>Error 404</h1>
<h4>The resource you have requested is not found.</h4>
<p>DarkHttpd Server</p>
<hr>
</body>
</html>

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