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 *curr_rev;
14char *match_path;
15int match;
16
17static void print_object(const unsigned char *sha1, const char *path)
18{
19	enum object_type type;
20	char *buf, *ext;
21	unsigned long size;
22	struct string_list_item *mime;
23
24	type = sha1_object_info(sha1, &size);
25	if (type == OBJ_BAD) {
26		html_status(404, "Not found", 0);
27		return;
28	}
29
30	buf = read_sha1_file(sha1, &type, &size);
31	if (!buf) {
32		html_status(404, "Not found", 0);
33		return;
34	}
35	ctx.page.mimetype = NULL;
36	ext = strrchr(path, '.');
37	if (ext && *(++ext)) {
38		mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
39		if (mime)
40			ctx.page.mimetype = (char *)mime->util;
41	}
42	if (!ctx.page.mimetype) {
43		if (buffer_is_binary(buf, size))
44			ctx.page.mimetype = "application/octet-stream";
45		else
46			ctx.page.mimetype = "text/plain";
47	}
48	ctx.page.filename = fmt("%s", path);
49	ctx.page.size = size;
50	ctx.page.etag = sha1_to_hex(sha1);
51	cgit_print_http_headers(&ctx);
52	html_raw(buf, size);
53	match = 1;
54}
55
56static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
57		     const char *pathname, unsigned mode, int stage,
58		     void *cbdata)
59{
60	if (S_ISDIR(mode))
61		return READ_TREE_RECURSIVE;
62
63	if (S_ISREG(mode) && !strncmp(base, match_path, baselen) &&
64	    !strcmp(pathname, match_path + baselen))
65		print_object(sha1, pathname);
66
67	return 0;
68}
69
70void cgit_print_plain(struct cgit_context *ctx)
71{
72	const char *rev = ctx->qry.sha1;
73	unsigned char sha1[20];
74	struct commit *commit;
75	const char *paths[] = {ctx->qry.path, NULL};
76
77	if (!rev)
78		rev = ctx->qry.head;
79
80	curr_rev = xstrdup(rev);
81	if (get_sha1(rev, sha1)) {
82		html_status(404, "Not found", 0);
83		return;
84	}
85	commit = lookup_commit_reference(sha1);
86	if (!commit || parse_commit(commit)) {
87		html_status(404, "Not found", 0);
88		return;
89	}
90	match_path = ctx->qry.path;
91	read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
92	if (!match)
93		html_status(404, "Not found", 0);
94}