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X-Comment: see https://dep.debian.net/deps/dep3/ for format
Description: File Types from the Environment
Out of the box, publicfile serves content using a hardcoded mapping from file
extension to MIME type. The mapping was chosen in the late 90s, and is missing
most modern content types. (It also has some idiosyncracies, such as requiring
JPEG files to be named .jpeg instead of the more common .jpg.)
.
Uwe Ohse fixed this with a patch that teaches publicfile to consult its
environment, instead. If it finds an unknown file extension .ext, it looks for
an environment variable called CT_ext. If it exists, publicflie will use its
contents as the MIME type.
.
Since djb’s daemontools provide a program, envdir, that configures a program’s
environment using files in a directory, you can now create your content mapping
as a directory of small text files instead of having to modify publicfile
itself.
.
(taken verbatim from https://cliffle.com/blog/publicfile-patches/, by Cliff L.
Biffle.)
.
The patch is linked to from https://www.ohse.de/uwe/patches.html , on that page
it says: "Allows publicfile to guess the MIME content type of a file.
Description: If the file extension is ".xY", then the content of the
environment variable "CT_xY" be used to determine the file type. If this is not
found then "text/plain" will be used. 1999-12-06. Seems to work."
Origin: https://www.ohse.de/uwe/patches/publicfile-0.52-filetype-diff
Author: Uwe Ohse
diff -u publicfile-0.52.old/filetype.c publicfile-0.52/filetype.c
--- publicfile-0.52.old/filetype.c Mon Dec 6 10:43:36 1999
+++ publicfile-0.52/filetype.c Mon Dec 6 10:50:36 1999
@@ -1,5 +1,6 @@
#include "filetype.h"
#include "str.h"
+#include "env.h"
void filetype(char *fn,stralloc *contenttype)
{
@@ -22,7 +23,7 @@
if (!stralloc_append(contenttype,&ch)) _exit(21);
}
else {
- result = "text/plain";
+ result = 0;
if (str_equal(x,".html")) result = "text/html";
else if (str_equal(x,".gz")) result = "application/x-gzip";
else if (str_equal(x,".dvi")) result = "application/x-dvi";
@@ -32,6 +33,15 @@
else if (str_equal(x,".jpeg")) result = "image/jpeg";
else if (str_equal(x,".png")) result = "image/png";
else if (str_equal(x,".mpeg")) result = "video/mpeg";
+ if (!result) {
+ stralloc envname = {0};
+ if (!stralloc_copys(&envname,"CT_")) _exit(21);
+ if (!stralloc_cats(&envname,x+1)) _exit(21);
+ if (!stralloc_0(&envname)) _exit(21);
+ result=env_get(envname.s);
+ alloc_free(envname.s); /* is this the right function */
+ }
+ if (!result) result="text/plain";
if (!stralloc_cats(contenttype,result)) _exit(21);
}
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