82a883ede7
This fixes http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-2542. Noticed-by: Silvio Cesare <silvio.cesare@gmail.com> Signed-off-by: Lars Hjemli <hjemli@gmail.com>
95 baris
2.1 KiB
C
95 baris
2.1 KiB
C
/* ui-plain.c: functions for output of plain blobs by path
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*
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* Copyright (C) 2008 Lars Hjemli
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*/
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#include "cgit.h"
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#include "html.h"
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#include "ui-shared.h"
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char *curr_rev;
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char *match_path;
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int match;
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static void print_object(const unsigned char *sha1, const char *path)
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{
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enum object_type type;
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char *buf, *ext;
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unsigned long size;
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struct string_list_item *mime;
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type = sha1_object_info(sha1, &size);
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if (type == OBJ_BAD) {
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html_status(404, "Not found", 0);
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return;
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}
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buf = read_sha1_file(sha1, &type, &size);
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if (!buf) {
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html_status(404, "Not found", 0);
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return;
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}
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ctx.page.mimetype = NULL;
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ext = strrchr(path, '.');
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if (ext && *(++ext)) {
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mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
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if (mime)
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ctx.page.mimetype = (char *)mime->util;
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}
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if (!ctx.page.mimetype) {
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if (buffer_is_binary(buf, size))
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ctx.page.mimetype = "application/octet-stream";
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else
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ctx.page.mimetype = "text/plain";
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}
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ctx.page.filename = fmt("%s", path);
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ctx.page.size = size;
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ctx.page.etag = sha1_to_hex(sha1);
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cgit_print_http_headers(&ctx);
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html_raw(buf, size);
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match = 1;
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}
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static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
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const char *pathname, unsigned mode, int stage,
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void *cbdata)
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{
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if (S_ISDIR(mode))
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return READ_TREE_RECURSIVE;
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if (S_ISREG(mode) && !strncmp(base, match_path, baselen) &&
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!strcmp(pathname, match_path + baselen))
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print_object(sha1, pathname);
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return 0;
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}
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void cgit_print_plain(struct cgit_context *ctx)
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{
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const char *rev = ctx->qry.sha1;
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unsigned char sha1[20];
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struct commit *commit;
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const char *paths[] = {ctx->qry.path, NULL};
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if (!rev)
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rev = ctx->qry.head;
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curr_rev = xstrdup(rev);
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if (get_sha1(rev, sha1)) {
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html_status(404, "Not found", 0);
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return;
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}
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commit = lookup_commit_reference(sha1);
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if (!commit || parse_commit(commit)) {
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html_status(404, "Not found", 0);
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return;
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}
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match_path = ctx->qry.path;
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read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
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if (!match)
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html_status(404, "Not found", 0);
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}
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