# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1309188393 -14400
# Node ID 64ebc9b27e0ab7c1150a72f0a202fd14e0759ecb
# Parent ca9582fc94fd3f5e9f72cdfe85612f161de15e87
Autoindex: escape html in file names.

diff --git a/src/http/modules/ngx_http_autoindex_module.c b/src/http/modules/ngx_http_autoindex_module.c
--- a/src/http/modules/ngx_http_autoindex_module.c
+++ b/src/http/modules/ngx_http_autoindex_module.c
@@ -26,6 +26,7 @@ typedef struct {
ngx_str_t name;
size_t utf_len;
size_t escape;
+ size_t escape_html;

unsigned dir:1;

@@ -137,7 +138,7 @@ ngx_http_autoindex_handler(ngx_http_requ
{
u_char *last, *filename, scale;
off_t length;
- size_t len, utf_len, allocated, root;
+ size_t len, char_len, escape_html, allocated, root;
ngx_tm_t tm;
ngx_err_t err;
ngx_buf_t *b;
@@ -339,6 +340,9 @@ ngx_http_autoindex_handler(ngx_http_requ
entry->escape = 2 * ngx_escape_uri(NULL, ngx_de_name(&dir), len,
NGX_ESCAPE_URI_COMPONENT);

+ entry->escape_html = ngx_escape_html(NULL, entry->name.data,
+ entry->name.len);
+
if (utf8) {
entry->utf_len = ngx_utf8_length(entry->name.data, entry->name.len);
} else {
@@ -355,10 +359,12 @@ ngx_http_autoindex_handler(ngx_http_requ
ngx_close_dir_n " \"%s\" failed", &path);
}

+ escape_html = ngx_escape_html(NULL, r->uri.data, r->uri.len);
+
len = sizeof(title) - 1
- + r->uri.len
+ + r->uri.len + escape_html
+ sizeof(header) - 1
- + r->uri.len
+ + r->uri.len + escape_html
+ sizeof("</h1>") - 1
+ sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
+ sizeof("</pre><hr>") - 1
@@ -371,6 +377,7 @@ ngx_http_autoindex_handler(ngx_http_requ
+ 1 /* 1 is for "/" */
+ sizeof("\">") - 1
+ entry[i].name.len - entry[i].utf_len
+ + entry[i].escape_html
+ NGX_HTTP_AUTOINDEX_NAME_LEN + sizeof("&gt;") - 2
+ sizeof("</a>") - 1
+ sizeof(" 28-Sep-1970 12:00 ") - 1
@@ -390,9 +397,18 @@ ngx_http_autoindex_handler(ngx_http_requ
}

b->last = ngx_cpymem(b->last, title, sizeof(title) - 1);
- 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, r->uri.data, r->uri.len);
+
+ 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, r->uri.data, r->uri.len);
+ }
+
b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);

b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
@@ -425,20 +441,41 @@ ngx_http_autoindex_handler(ngx_http_requ

if (entry[i].name.len != len) {
if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
- utf_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3 + 1;
+ char_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3 + 1;

} else {
- utf_len = NGX_HTTP_AUTOINDEX_NAME_LEN + 1;
+ char_len = NGX_HTTP_AUTOINDEX_NAME_LEN + 1;
}

+ last = b->last;
b->last = ngx_utf8_cpystrn(b->last, entry[i].name.data,
- utf_len, entry[i].name.len + 1);
+ char_len, entry[i].name.len + 1);
+
+ if (entry[i].escape_html) {
+ b->last = (u_char *) ngx_escape_html(last, entry[i].name.data,
+ b->last - last);
+ }
+
last = b->last;

} else {
- b->last = ngx_cpystrn(b->last, entry[i].name.data,
- NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
- last = b->last - 3;
+ if (entry[i].escape_html) {
+ if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
+ char_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3;
+
+ } else {
+ char_len = len;
+ }
+
+ b->last = (u_char *) ngx_escape_html(b->last,
+ entry[i].name.data, char_len);
+ last = b->last;
+
+ } else {
+ b->last = ngx_cpystrn(b->last, entry[i].name.data,
+ NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
+ last = b->last - 3;
+ }
}

if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {

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