From df8df5b5a6fc5b9887eecdeb3b524b9123bec544 Mon Sep 17 00:00:00 2001
From: Eric Covener <covener@apache.org>
Date: Sat, 16 Mar 2019 18:15:23 +0000
Subject: [PATCH] allow mod_mime to be de disabled per-dir too

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1855663 13f79535-47bb-0310-9956-ffa450edef68
---
 CHANGES                      |  3 ++-
 docs/manual/mod/mod_mime.xml |  5 +++++
 modules/http/mod_mime.c      | 16 ++++++++++++++++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index ad8f512d73..afcb891e19 100644
--- a/CHANGES
+++ b/CHANGES
@@ -6,7 +6,8 @@ Changes with Apache 2.5.1
      configurations in <Location> or <Proxy> context. PR 63256. [Yann Ylavic]
 
   *) mod_mime: Add `MimeOptions` directive to allow Content-Type or all metadata
-     detection to use only the last (right-most) file extension. [Eric Covener]
+     detection to use only the last (right-most) file extension or to be
+     disabled per-dir. [Eric Covener]
 
   *) MPMs unix: bind the bucket number of each child to its slot number, for a
      more efficient per bucket maintenance. [Yann Ylavic]
diff --git a/docs/manual/mod/mod_mime.xml b/docs/manual/mod/mod_mime.xml
index 4e6314e27f..484f5c7d2b 100644
--- a/docs/manual/mod/mod_mime.xml
+++ b/docs/manual/mod/mod_mime.xml
@@ -1082,6 +1082,11 @@ RemoveType .cgi
       <dd>This option can be used to revert to the default behavior of testing
       every filename extension when determining any response metadata
       (Content-Type, language, encoding, etc.) .</dd>
+      <dt><code>Disable</code></dt>
+      <dd>All assignment of metadata based on the filename is skipped.</dd>
+      <dt><code>Enable</code></dt>
+      <dd>Re-enables assignment of metadata based on the filename. Only useful if a lower
+      precedence section has specified <code>MimeOptions Disable</code>.</dd>
     </dl>
 </usage>
 </directivesynopsis>
diff --git a/modules/http/mod_mime.c b/modules/http/mod_mime.c
index 94672f228b..e951beedc1 100644
--- a/modules/http/mod_mime.c
+++ b/modules/http/mod_mime.c
@@ -95,6 +95,8 @@ typedef struct {
     enum {CT_LAST_INIT, CT_LAST_ON, CT_LAST_OFF} ct_last_ext;
     /* Only use the final extension for anything */
     enum {ALL_LAST_INIT, ALL_LAST_ON, ALL_LAST_OFF} all_last_ext;
+    /* don't do any detection */
+    enum {NOMIME_INIT, NOMIME_ON, NOMIME_OFF} nomime;
 } mime_dir_config;
 
 typedef struct param_s {
@@ -251,6 +253,10 @@ static void *merge_mime_dir_configs(apr_pool_t *p, void *basev, void *addv)
     new->all_last_ext = (add->all_last_ext != ALL_LAST_INIT)
                            ? add->all_last_ext
                            : base->all_last_ext;
+    new->nomime = (add->nomime != NOMIME_INIT)
+                           ? add->nomime
+                           : base->nomime;
+
 
     return new;
 }
@@ -394,6 +400,12 @@ static const char *add_mime_options(cmd_parms *cmd, void *in_dc,
     else if (!strcasecmp(flag, "NoAllLastExtension")) {
         dc->all_last_ext = ALL_LAST_OFF;
     }
+    else if (!strcasecmp(flag, "Disable")) {
+        dc->nomime = NOMIME_ON;
+    }
+    else if (!strcasecmp(flag, "Enable")) {
+        dc->nomime = NOMIME_OFF;
+    }
     else {
         return apr_pstrcat(cmd->temp_pool,
                            "Invalid MimeOptions option: ",
@@ -814,6 +826,10 @@ static int find_ct(request_rec *r)
 
     conf = (mime_dir_config *)ap_get_module_config(r->per_dir_config,
                                                    &mime_module);
+    if (conf->nomime == NOMIME_ON) {
+        return DECLINED;
+    }
+
     exception_list = apr_array_make(r->pool, 2, sizeof(char *));
 
     /* If use_path_info is explicitly set to on (value & 1 == 1), append. */
-- 
2.50.1