Skip to content

Instantly share code, notes, and snippets.

@sfan5

sfan5/nginx-hdrimg.patch

Last active October 31, 2016 14:34
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save sfan5/db040d04686ed653d9b1 to your computer and use it in GitHub Desktop.
Save sfan5/db040d04686ed653d9b1 to your computer and use it in GitHub Desktop.
Download ZIP
Add randomly selected header icons to generated autoindexes in nginx
Raw
nginx-hdrimg.patch
--- nginx-1.10.2/src/http/modules/ngx_http_autoindex_module.c.orig 2016-10-18 17:03:14.000000000 +0200
+++ nginx-1.10.2/src/http/modules/ngx_http_autoindex_module.c 2016-10-31 15:31:31.873696354 +0100
@@ -54,6 +54,10 @@
#define NGX_HTTP_AUTOINDEX_NAME_LEN 50
+#define NGX_HTTP_AUTOINDEX_HDRIMG_COUNT 4 // indexing starts at zero
+#define NGX_HTTP_AUTOINDEX_HDRIMG_SIZE "96px"
+#define NGX_HTTP_AUTOINDEX_HDRIMG_UPRE "/_/h"
+#define NGX_HTTP_AUTOINDEX_HDRIMG_UPOST ".png"
static ngx_buf_t *ngx_http_autoindex_html(ngx_http_request_t *r,
ngx_array_t *entries);
@@ -444,11 +448,21 @@
"<head><title>Index of "
;
- static u_char header[] =
+ static u_char header_a[] =
"</title></head>" CRLF
"<body bgcolor=\"white\">" CRLF
+ "<div style=\"display:flex;align-items:center;\">"
+ "<img alt=\"\" style=\"float:left;width:" NGX_HTTP_AUTOINDEX_HDRIMG_SIZE
+ ";\" src=\""
+ ;
+ static u_char header_b[] =
+ "\">"
"<h1>Index of "
;
+#if NGX_HTTP_AUTOINDEX_HDRIMG_COUNT > 10
+#error due to reasons NGX_HTTP_AUTOINDEX_HDRIMG_COUNT is limited to 10
+#endif
+ const char nchr = '0' + (rand() % NGX_HTTP_AUTOINDEX_HDRIMG_COUNT);
static u_char tail[] =
"</body>" CRLF
@@ -472,11 +486,15 @@
len = sizeof(title) - 1
+ r->uri.len + escape_html
- + sizeof(header) - 1
+ + sizeof(header_a) - 1
+ + sizeof(NGX_HTTP_AUTOINDEX_HDRIMG_UPRE) - 1
+ + 1 // number char
+ + sizeof(NGX_HTTP_AUTOINDEX_HDRIMG_UPOST) - 1
+ + sizeof(header_b) - 1
+ r->uri.len + escape_html
- + sizeof("</h1>") - 1
- + sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
- + sizeof("</pre><hr>") - 1
+ + sizeof("</h1></div>") - 1
+ + sizeof("<hr style=\"border-style:ridge;\"><pre><a href=\"../\">../</a>" CRLF) - 1
+ + sizeof("</pre><hr style=\"border-style:ridge;\">") - 1
+ sizeof(tail) - 1;
entry = entries->elts;
@@ -517,19 +535,26 @@
if (escape_html) {
b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len);
- b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
- b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len);
} else {
b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
- b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
+ }
+ b->last = ngx_cpymem(b->last, header_a, sizeof(header_a) - 1);
+ b->last = ngx_cpymem(b->last, NGX_HTTP_AUTOINDEX_HDRIMG_UPRE, sizeof(NGX_HTTP_AUTOINDEX_HDRIMG_UPRE) - 1);
+ b->last = ngx_cpymem(b->last, &nchr, 1);
+ b->last = ngx_cpymem(b->last, NGX_HTTP_AUTOINDEX_HDRIMG_UPOST, sizeof(NGX_HTTP_AUTOINDEX_HDRIMG_UPOST) - 1);
+ b->last = ngx_cpymem(b->last, header_b, sizeof(header_b) - 1);
+ if (escape_html) {
+ b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len);
+
+ } else {
b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
}
- b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);
+ b->last = ngx_cpymem(b->last, "</h1></div>", sizeof("</h1></div>") - 1);
- b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
- sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1);
+ b->last = ngx_cpymem(b->last, "<hr style=\"border-style:ridge;\"><pre><a href=\"../\">../</a>" CRLF,
+ sizeof("<hr style=\"border-style:ridge;\"><pre><a href=\"../\">../</a>" CRLF) - 1);
alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module);
tp = ngx_timeofday();
@@ -681,7 +706,7 @@
*b->last++ = LF;
}
- b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1);
+ b->last = ngx_cpymem(b->last, "</pre><hr style=\"border-style:ridge;\">", sizeof("</pre><hr style=\"border-style:ridge;\">") - 1);
b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment