1/* ui-plain.c: functions for output of plain blobs by path
 2 *
 3 * Copyright (C) 2008 Lars Hjemli
 4 *
 5 * Licensed under GNU General Public License v2
 6 *   (see COPYING for full license text)
 7 */
 8
 9#include "cgit.h"
10#include "html.h"
11#include "ui-shared.h"
12
13char *match_path;
14int match;
15
16static void print_object(const unsigned char *sha1, const char *path)
17{
18	enum object_type type;
19	char *buf, *ext;
20	unsigned long size;
21	struct string_list_item *mime;
22
23	type = sha1_object_info(sha1, &size);
24	if (type == OBJ_BAD) {
25		html_status(404, "Not found", 0);
26		return;
27	}
28
29	buf = read_sha1_file(sha1, &type, &size);
30	if (!buf) {
31		html_status(404, "Not found", 0);
32		return;
33	}
34	ctx.page.mimetype = NULL;
35	ext = strrchr(path, '.');
36	if (ext && *(++ext)) {
37		mime = string_list_lookup(ext, &ctx.cfg.mimetypes);
38		if (mime)
39			ctx.page.mimetype = (char *)mime->util;
40	}
41	if (!ctx.page.mimetype) {
42		if (buffer_is_binary(buf, size))
43			ctx.page.mimetype = "application/octet-stream";
44		else
45			ctx.page.mimetype = "text/plain";
46	}
47	ctx.page.filename = fmt("%s", path);
48	ctx.page.size = size;
49	ctx.page.etag = sha1_to_hex(sha1);
50	cgit_print_http_headers(&ctx);
51	html_raw(buf, size);
52	match = 1;
53}
54
55static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
56		     const char *pathname, unsigned mode, int stage,
57		     void *cbdata)
58{
59	if (S_ISDIR(mode))
60		return READ_TREE_RECURSIVE;
61
62	if (S_ISREG(mode) && !strncmp(base, match_path, baselen) &&
63	    !strcmp(pathname, match_path + baselen))
64		print_object(sha1, pathname);
65
66	return 0;
67}
68
69void cgit_print_plain(struct cgit_context *ctx)
70{
71	const char *rev = ctx->qry.sha1;
72	unsigned char sha1[20];
73	struct commit *commit;
74	const char *paths[] = {ctx->qry.path, NULL};
75
76	if (!rev)
77		rev = ctx->qry.head;
78
79	if (get_sha1(rev, sha1)) {
80		html_status(404, "Not found", 0);
81		return;
82	}
83	commit = lookup_commit_reference(sha1);
84	if (!commit || parse_commit(commit)) {
85		html_status(404, "Not found", 0);
86		return;
87	}
88	match_path = ctx->qry.path;
89	read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
90	if (!match)
91		html_status(404, "Not found", 0);
92}