4 files changed, 45 insertions, 5 deletions

diff --git a/cgit.c b/cgit.c
index f6bb0c7..aa1107a 100644
--- a/cgit.c
+++ b/cgit.c
@@ -19,2 +19,10 @@ const char *cgit_version = CGIT_VERSION;
 
+void add_mimetype(const char *name, const char *value)
+{
+	struct string_list_item *item;
+
+	item = string_list_insert(xstrdup(name), &ctx.cfg.mimetypes);
+	item->util = xstrdup(value);
+}
+
 void config_cb(const char *name, const char *value)
@@ -105,2 +113,4 @@ void config_cb(const char *name, const char *value)
 		ctx.cfg.local_time = atoi(value);
+	else if (!prefixcmp(name, "mimetype."))
+		add_mimetype(name + 9, value);
 	else if (!strcmp(name, "repo.group"))
@@ -217,2 +227,3 @@ static void prepare_context(struct cgit_context *ctx)
 	ctx->page.etag = NULL;
+	memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
 }
diff --git a/cgit.h b/cgit.h
index acb5e8f..1194eb0 100644
--- a/cgit.h
+++ b/cgit.h
@@ -17,2 +17,3 @@
 #include <archive.h>
+#include <string-list.h>
 #include <xdiff-interface.h>
@@ -177,2 +178,3 @@ struct cgit_config {
 	int summary_tags;
+	struct string_list mimetypes;
 };
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 7754923..0412f64 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -149,2 +149,6 @@ max-stats::
 
+mimetype.<ext>::
+	Set the mimetype for the specified filename extension. This is used
+	by the `plain` command when returning blob content.
+
 module-link::
@@ -331,2 +335,15 @@ snapshots=tar.gz tar.bz2 zip
 ##
+## List of common mimetypes
+##
+
+mimetype.git=image/git
+mimetype.html=text/html
+mimetype.jpg=image/jpeg
+mimetype.jpeg=image/jpeg
+mimetype.pdf=application/pdf
+mimetype.png=image/png
+mimetype.svg=image/svg+xml
+
+
+##
 ## List of repositories.
diff --git a/ui-plain.c b/ui-plain.c
index 93a3a05..27c6dae 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -19,4 +19,5 @@ static void print_object(const unsigned char *sha1, const char *path)
 	enum object_type type;
-	char *buf;
+	char *buf, *ext;
 	unsigned long size;
+	struct string_list_item *mime;
 
@@ -33,6 +34,15 @@ static void print_object(const unsigned char *sha1, const char *path)
 	}
-	if (buffer_is_binary(buf, size))
-		ctx.page.mimetype = "application/octet-stream";
-	else
-		ctx.page.mimetype = "text/plain";
+	ctx.page.mimetype = NULL;
+	ext = strrchr(path, '.');
+	if (ext && *(++ext)) {
+		mime = string_list_lookup(ext, &ctx.cfg.mimetypes);
+		if (mime)
+			ctx.page.mimetype = (char *)mime->util;
+	}
+	if (!ctx.page.mimetype) {
+		if (buffer_is_binary(buf, size))
+			ctx.page.mimetype = "application/octet-stream";
+		else
+			ctx.page.mimetype = "text/plain";
+	}
 	ctx.page.filename = fmt("%s", path);