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
 13int match_baselen;
 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 (baselen == match_baselen) {
 60		if (S_ISREG(mode))
 61			print_object(sha1, pathname);
 62	}
 63	else if (S_ISDIR(mode))
 64		return READ_TREE_RECURSIVE;
 65
 66	return 0;
 67}
 68
 69static int basedir_len(const char *path)
 70{
 71	char *p = strrchr(path, '/');
 72	if (p)
 73		return p - path + 1;
 74	return 0;
 75}
 76
 77void cgit_print_plain(struct cgit_context *ctx)
 78{
 79	const char *rev = ctx->qry.sha1;
 80	unsigned char sha1[20];
 81	struct commit *commit;
 82	const char *paths[] = {ctx->qry.path, NULL};
 83
 84	if (!rev)
 85		rev = ctx->qry.head;
 86
 87	if (get_sha1(rev, sha1)) {
 88		html_status(404, "Not found", 0);
 89		return;
 90	}
 91	commit = lookup_commit_reference(sha1);
 92	if (!commit || parse_commit(commit)) {
 93		html_status(404, "Not found", 0);
 94		return;
 95	}
 96	match_baselen = basedir_len(paths[0]);
 97	read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
 98	if (!match)
 99		html_status(404, "Not found", 0);
100}