2b3e76a9f9
This provides a formatted error response rather than a simple HTTP error. Signed-off-by: John Keeping <john@keeping.me.uk>
250 sor
5.7 KiB
C
250 sor
5.7 KiB
C
/* ui-plain.c: functions for output of plain blobs by path
|
|
*
|
|
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
|
|
*
|
|
* Licensed under GNU General Public License v2
|
|
* (see COPYING for full license text)
|
|
*/
|
|
|
|
#include "cgit.h"
|
|
#include "ui-plain.h"
|
|
#include "html.h"
|
|
#include "ui-shared.h"
|
|
|
|
struct walk_tree_context {
|
|
int match_baselen;
|
|
int match;
|
|
};
|
|
|
|
static char *get_mimetype_from_file(const char *filename, const char *ext)
|
|
{
|
|
static const char *delimiters;
|
|
char *result;
|
|
FILE *fd;
|
|
char line[1024];
|
|
char *mimetype;
|
|
char *token;
|
|
|
|
if (!filename)
|
|
return NULL;
|
|
|
|
fd = fopen(filename, "r");
|
|
if (!fd)
|
|
return NULL;
|
|
|
|
delimiters = " \t\r\n";
|
|
result = NULL;
|
|
|
|
/* loop over all lines in the file */
|
|
while (!result && fgets(line, sizeof(line), fd)) {
|
|
mimetype = strtok(line, delimiters);
|
|
|
|
/* skip empty lines and comment lines */
|
|
if (!mimetype || (mimetype[0] == '#'))
|
|
continue;
|
|
|
|
/* loop over all extensions of mimetype */
|
|
while ((token = strtok(NULL, delimiters))) {
|
|
if (!strcasecmp(ext, token)) {
|
|
result = xstrdup(mimetype);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
fclose(fd);
|
|
|
|
return result;
|
|
}
|
|
|
|
static int print_object(const unsigned char *sha1, const char *path)
|
|
{
|
|
enum object_type type;
|
|
char *buf, *ext;
|
|
unsigned long size;
|
|
struct string_list_item *mime;
|
|
int freemime;
|
|
|
|
type = sha1_object_info(sha1, &size);
|
|
if (type == OBJ_BAD) {
|
|
cgit_print_error_page(404, "Not found", "Not found");
|
|
return 0;
|
|
}
|
|
|
|
buf = read_sha1_file(sha1, &type, &size);
|
|
if (!buf) {
|
|
cgit_print_error_page(404, "Not found", "Not found");
|
|
return 0;
|
|
}
|
|
ctx.page.mimetype = NULL;
|
|
ext = strrchr(path, '.');
|
|
freemime = 0;
|
|
if (ext && *(++ext)) {
|
|
mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
|
|
if (mime) {
|
|
ctx.page.mimetype = (char *)mime->util;
|
|
ctx.page.charset = NULL;
|
|
} else {
|
|
ctx.page.mimetype = get_mimetype_from_file(ctx.cfg.mimetype_file, ext);
|
|
if (ctx.page.mimetype) {
|
|
freemime = 1;
|
|
ctx.page.charset = NULL;
|
|
}
|
|
}
|
|
}
|
|
if (!ctx.page.mimetype) {
|
|
if (buffer_is_binary(buf, size)) {
|
|
ctx.page.mimetype = "application/octet-stream";
|
|
ctx.page.charset = NULL;
|
|
} else {
|
|
ctx.page.mimetype = "text/plain";
|
|
}
|
|
}
|
|
ctx.page.filename = path;
|
|
ctx.page.size = size;
|
|
ctx.page.etag = sha1_to_hex(sha1);
|
|
cgit_print_http_headers();
|
|
html_raw(buf, size);
|
|
/* If we allocated this, then casting away const is safe. */
|
|
if (freemime)
|
|
free((char*) ctx.page.mimetype);
|
|
return 1;
|
|
}
|
|
|
|
static char *buildpath(const char *base, int baselen, const char *path)
|
|
{
|
|
if (path[0])
|
|
return fmtalloc("%.*s%s/", baselen, base, path);
|
|
else
|
|
return fmtalloc("%.*s/", baselen, base);
|
|
}
|
|
|
|
static void print_dir(const unsigned char *sha1, const char *base,
|
|
int baselen, const char *path)
|
|
{
|
|
char *fullpath, *slash;
|
|
size_t len;
|
|
|
|
fullpath = buildpath(base, baselen, path);
|
|
slash = (fullpath[0] == '/' ? "" : "/");
|
|
ctx.page.etag = sha1_to_hex(sha1);
|
|
cgit_print_http_headers();
|
|
htmlf("<html><head><title>%s", slash);
|
|
html_txt(fullpath);
|
|
htmlf("</title></head>\n<body>\n<h2>%s", slash);
|
|
html_txt(fullpath);
|
|
html("</h2>\n<ul>\n");
|
|
len = strlen(fullpath);
|
|
if (len > 1) {
|
|
fullpath[len - 1] = 0;
|
|
slash = strrchr(fullpath, '/');
|
|
if (slash)
|
|
*(slash + 1) = 0;
|
|
else
|
|
fullpath = NULL;
|
|
html("<li>");
|
|
cgit_plain_link("../", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
|
|
fullpath);
|
|
html("</li>\n");
|
|
}
|
|
free(fullpath);
|
|
}
|
|
|
|
static void print_dir_entry(const unsigned char *sha1, const char *base,
|
|
int baselen, const char *path, unsigned mode)
|
|
{
|
|
char *fullpath;
|
|
|
|
fullpath = buildpath(base, baselen, path);
|
|
if (!S_ISDIR(mode) && !S_ISGITLINK(mode))
|
|
fullpath[strlen(fullpath) - 1] = 0;
|
|
html(" <li>");
|
|
if (S_ISGITLINK(mode)) {
|
|
cgit_submodule_link(NULL, fullpath, sha1_to_hex(sha1));
|
|
} else
|
|
cgit_plain_link(path, NULL, NULL, ctx.qry.head, ctx.qry.sha1,
|
|
fullpath);
|
|
html("</li>\n");
|
|
free(fullpath);
|
|
}
|
|
|
|
static void print_dir_tail(void)
|
|
{
|
|
html(" </ul>\n</body></html>\n");
|
|
}
|
|
|
|
static int walk_tree(const unsigned char *sha1, struct strbuf *base,
|
|
const char *pathname, unsigned mode, int stage, void *cbdata)
|
|
{
|
|
struct walk_tree_context *walk_tree_ctx = cbdata;
|
|
|
|
if (base->len == walk_tree_ctx->match_baselen) {
|
|
if (S_ISREG(mode)) {
|
|
if (print_object(sha1, pathname))
|
|
walk_tree_ctx->match = 1;
|
|
} else if (S_ISDIR(mode)) {
|
|
print_dir(sha1, base->buf, base->len, pathname);
|
|
walk_tree_ctx->match = 2;
|
|
return READ_TREE_RECURSIVE;
|
|
}
|
|
} else if (base->len > walk_tree_ctx->match_baselen) {
|
|
print_dir_entry(sha1, base->buf, base->len, pathname, mode);
|
|
walk_tree_ctx->match = 2;
|
|
} else if (S_ISDIR(mode)) {
|
|
return READ_TREE_RECURSIVE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int basedir_len(const char *path)
|
|
{
|
|
char *p = strrchr(path, '/');
|
|
if (p)
|
|
return p - path + 1;
|
|
return 0;
|
|
}
|
|
|
|
void cgit_print_plain(void)
|
|
{
|
|
const char *rev = ctx.qry.sha1;
|
|
unsigned char sha1[20];
|
|
struct commit *commit;
|
|
struct pathspec_item path_items = {
|
|
.match = ctx.qry.path,
|
|
.len = ctx.qry.path ? strlen(ctx.qry.path) : 0
|
|
};
|
|
struct pathspec paths = {
|
|
.nr = 1,
|
|
.items = &path_items
|
|
};
|
|
struct walk_tree_context walk_tree_ctx = {
|
|
.match = 0
|
|
};
|
|
|
|
if (!rev)
|
|
rev = ctx.qry.head;
|
|
|
|
if (get_sha1(rev, sha1)) {
|
|
cgit_print_error_page(404, "Not found", "Not found");
|
|
return;
|
|
}
|
|
commit = lookup_commit_reference(sha1);
|
|
if (!commit || parse_commit(commit)) {
|
|
cgit_print_error_page(404, "Not found", "Not found");
|
|
return;
|
|
}
|
|
if (!path_items.match) {
|
|
path_items.match = "";
|
|
walk_tree_ctx.match_baselen = -1;
|
|
print_dir(commit->tree->object.sha1, "", 0, "");
|
|
walk_tree_ctx.match = 2;
|
|
}
|
|
else
|
|
walk_tree_ctx.match_baselen = basedir_len(path_items.match);
|
|
read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
|
|
if (!walk_tree_ctx.match)
|
|
cgit_print_error_page(404, "Not found", "Not found");
|
|
else if (walk_tree_ctx.match == 2)
|
|
print_dir_tail();
|
|
}
|