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/* ui-plain.c: functions for output of plain blobs by path
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*
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* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
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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 "ui-plain.h"
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#include "html.h"
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#include "ui-shared.h"
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struct walk_tree_context {
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int match_baselen;
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int match;
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};
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static int 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, *mimetype;
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Fix some warnings to allow -Werror
The type used to declare the st_size field of a 'struct stat' can
be a 32- or 64-bit sized type, which can vary from one platform to
another, or even from one compilation to another. In particular,
on linux, if you include the following define:
#define _FILE_OFFSET_BITS 64
prior to including certain system header files, then the type used
for the st_size field will be __off64_t, otherwise it will be an
__off_t. Note that the above define is included at the top of
git-compat-util.h.
In cache.c, the "%zd" format specifier expects a "signed size_t",
another type which can vary, when an __off64_t or a __off_t is
provided. To supress the warning, use the PRIuMAX format specifier
and cast the st_size field to uintmax_t. This should work an any
platform for which git currently compiles.
In ui-plain.c, the size parameter of sha1_object_info() and
read_sha1_file() is defined to be "unsigned long *" not "size_t *".
So, to supress the warning, simply declare size with the correct type.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
16 years ago
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unsigned long size;
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type = sha1_object_info(sha1, &size);
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if (type == OBJ_BAD) {
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cgit_print_error_page(404, "Not found", "Not found");
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return 0;
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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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cgit_print_error_page(404, "Not found", "Not found");
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return 0;
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}
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mimetype = get_mimetype_for_filename(path);
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ctx.page.mimetype = mimetype;
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if (!ctx.repo->enable_html_serving) {
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html("X-Content-Type-Options: nosniff\n");
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html("Content-Security-Policy: default-src 'none'\n");
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if (mimetype) {
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/* Built-in white list allows PDF and everything that isn't text/ and application/ */
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if ((!strncmp(mimetype, "text/", 5) || !strncmp(mimetype, "application/", 12)) && strcmp(mimetype, "application/pdf"))
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ctx.page.mimetype = NULL;
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}
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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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ctx.page.charset = NULL;
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} else {
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ctx.page.mimetype = "text/plain";
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}
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}
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ctx.page.filename = 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();
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html_raw(buf, size);
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free(mimetype);
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free(buf);
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return 1;
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}
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static char *buildpath(const char *base, int baselen, const char *path)
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{
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if (path[0])
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return fmtalloc("%.*s%s/", baselen, base, path);
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else
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return fmtalloc("%.*s/", baselen, base);
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}
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static void print_dir(const unsigned char *sha1, const char *base,
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int baselen, const char *path)
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{
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char *fullpath, *slash;
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size_t len;
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fullpath = buildpath(base, baselen, path);
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slash = (fullpath[0] == '/' ? "" : "/");
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ctx.page.etag = sha1_to_hex(sha1);
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cgit_print_http_headers();
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htmlf("<html><head><title>%s", slash);
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html_txt(fullpath);
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htmlf("</title></head>\n<body>\n<h2>%s", slash);
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html_txt(fullpath);
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html("</h2>\n<ul>\n");
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len = strlen(fullpath);
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if (len > 1) {
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fullpath[len - 1] = 0;
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slash = strrchr(fullpath, '/');
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if (slash)
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*(slash + 1) = 0;
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else {
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free(fullpath);
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fullpath = NULL;
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}
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html("<li>");
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cgit_plain_link("../", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
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fullpath);
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html("</li>\n");
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}
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free(fullpath);
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}
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static void print_dir_entry(const unsigned char *sha1, const char *base,
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int baselen, const char *path, unsigned mode)
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{
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char *fullpath;
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fullpath = buildpath(base, baselen, path);
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if (!S_ISDIR(mode) && !S_ISGITLINK(mode))
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fullpath[strlen(fullpath) - 1] = 0;
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html(" <li>");
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if (S_ISGITLINK(mode)) {
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cgit_submodule_link(NULL, fullpath, sha1_to_hex(sha1));
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} else
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cgit_plain_link(path, NULL, NULL, ctx.qry.head, ctx.qry.sha1,
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fullpath);
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html("</li>\n");
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free(fullpath);
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}
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static void print_dir_tail(void)
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{
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html(" </ul>\n</body></html>\n");
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}
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static int walk_tree(const unsigned char *sha1, struct strbuf *base,
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const char *pathname, unsigned mode, int stage, void *cbdata)
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{
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struct walk_tree_context *walk_tree_ctx = cbdata;
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if (base->len == walk_tree_ctx->match_baselen) {
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if (S_ISREG(mode)) {
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if (print_object(sha1, pathname))
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walk_tree_ctx->match = 1;
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} else if (S_ISDIR(mode)) {
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print_dir(sha1, base->buf, base->len, pathname);
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walk_tree_ctx->match = 2;
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return READ_TREE_RECURSIVE;
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}
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} else if (base->len < INT_MAX && (int)base->len > walk_tree_ctx->match_baselen) {
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print_dir_entry(sha1, base->buf, base->len, pathname, mode);
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walk_tree_ctx->match = 2;
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} else if (S_ISDIR(mode)) {
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return READ_TREE_RECURSIVE;
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}
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return 0;
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}
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static int basedir_len(const char *path)
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{
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char *p = strrchr(path, '/');
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if (p)
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return p - path + 1;
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return 0;
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}
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void cgit_print_plain(void)
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{
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const char *rev = ctx.qry.sha1;
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struct object_id oid;
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struct commit *commit;
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struct pathspec_item path_items = {
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.match = ctx.qry.path,
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.len = ctx.qry.path ? strlen(ctx.qry.path) : 0
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};
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struct pathspec paths = {
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.nr = 1,
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.items = &path_items
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};
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struct walk_tree_context walk_tree_ctx = {
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.match = 0
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};
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if (!rev)
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rev = ctx.qry.head;
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if (get_oid(rev, &oid)) {
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cgit_print_error_page(404, "Not found", "Not found");
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return;
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}
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commit = lookup_commit_reference(oid.hash);
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if (!commit || parse_commit(commit)) {
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cgit_print_error_page(404, "Not found", "Not found");
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return;
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}
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if (!path_items.match) {
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path_items.match = "";
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walk_tree_ctx.match_baselen = -1;
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print_dir(commit->tree->object.oid.hash, "", 0, "");
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walk_tree_ctx.match = 2;
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}
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else
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walk_tree_ctx.match_baselen = basedir_len(path_items.match);
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read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
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if (!walk_tree_ctx.match)
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cgit_print_error_page(404, "Not found", "Not found");
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else if (walk_tree_ctx.match == 2)
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print_dir_tail();
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}
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