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Lars Hjemlie5da4bc2008-08-06 10:53:50 +02001/* ui-plain.c: functions for output of plain blobs by path
2 *
Lukas Fleischerf7f26f82014-01-08 15:10:49 +01003 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
Lars Hjemlie5da4bc2008-08-06 10:53:50 +02004 *
5 * Licensed under GNU General Public License v2
6 * (see COPYING for full license text)
7 */
8
9#include "cgit.h"
John Keeping8f208792013-04-06 11:37:59 +010010#include "ui-plain.h"
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020011#include "html.h"
12#include "ui-shared.h"
13
Lukas Fleischerb1db30c2013-03-03 17:27:54 +010014struct walk_tree_context {
15 int match_baselen;
16 int match;
17};
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020018
Lukas Fleischera6317502013-03-03 17:10:19 +010019static int print_object(const unsigned char *sha1, const char *path)
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020020{
21 enum object_type type;
Christian Hesseaa943bc2015-08-16 14:53:52 +020022 char *buf, *mimetype;
Ramsay Jonesbdd4a562008-11-04 19:22:08 +000023 unsigned long size;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020024
25 type = sha1_object_info(sha1, &size);
26 if (type == OBJ_BAD) {
John Keeping2b3e76a2015-08-14 12:47:04 +010027 cgit_print_error_page(404, "Not found", "Not found");
Lukas Fleischera6317502013-03-03 17:10:19 +010028 return 0;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020029 }
30
31 buf = read_sha1_file(sha1, &type, &size);
32 if (!buf) {
John Keeping2b3e76a2015-08-14 12:47:04 +010033 cgit_print_error_page(404, "Not found", "Not found");
Lukas Fleischera6317502013-03-03 17:10:19 +010034 return 0;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020035 }
Christian Hesseaa943bc2015-08-16 14:53:52 +020036
37 mimetype = get_mimetype_for_filename(path);
38 ctx.page.mimetype = mimetype;
39
Jason A. Donenfeldc326f3e2016-01-14 14:53:28 +010040 if (!ctx.repo->enable_html_serving) {
41 html("X-Content-Type-Options: nosniff\n");
42 html("Content-Security-Policy: default-src 'none'\n");
43 if (mimetype) {
44 /* Built-in white list allows PDF and everything that isn't text/ and application/ */
45 if ((!strncmp(mimetype, "text/", 5) || !strncmp(mimetype, "application/", 12)) && strcmp(mimetype, "application/pdf"))
46 ctx.page.mimetype = NULL;
47 }
48 }
49
Lars Hjemlic4d46c72009-02-13 20:43:30 +010050 if (!ctx.page.mimetype) {
John Keeping407f71c2013-10-06 12:14:41 +010051 if (buffer_is_binary(buf, size)) {
Lars Hjemlic4d46c72009-02-13 20:43:30 +010052 ctx.page.mimetype = "application/octet-stream";
John Keeping407f71c2013-10-06 12:14:41 +010053 ctx.page.charset = NULL;
54 } else {
Lars Hjemlic4d46c72009-02-13 20:43:30 +010055 ctx.page.mimetype = "text/plain";
John Keeping407f71c2013-10-06 12:14:41 +010056 }
Lars Hjemlic4d46c72009-02-13 20:43:30 +010057 }
John Keeping42d54762013-04-06 10:49:22 +010058 ctx.page.filename = path;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020059 ctx.page.size = size;
Lars Hjemli488a2142009-02-19 22:38:36 +010060 ctx.page.etag = sha1_to_hex(sha1);
Lukas Fleischerf60ffa12014-01-15 21:53:15 +010061 cgit_print_http_headers();
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020062 html_raw(buf, size);
Christian Hesseaa943bc2015-08-16 14:53:52 +020063 free(mimetype);
Christian Hesse979db792015-10-09 14:55:49 +020064 free(buf);
Lukas Fleischera6317502013-03-03 17:10:19 +010065 return 1;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +020066}
67
Lars Hjemli7f88d202011-06-12 20:49:35 +000068static char *buildpath(const char *base, int baselen, const char *path)
Mark Lodato6c1a7362010-01-31 14:25:03 -050069{
Lars Hjemli7f88d202011-06-12 20:49:35 +000070 if (path[0])
John Keepingfb3655d2013-04-06 10:28:57 +010071 return fmtalloc("%.*s%s/", baselen, base, path);
Mark Lodato6c1a7362010-01-31 14:25:03 -050072 else
John Keepingfb3655d2013-04-06 10:28:57 +010073 return fmtalloc("%.*s/", baselen, base);
Lars Hjemli7f88d202011-06-12 20:49:35 +000074}
75
76static void print_dir(const unsigned char *sha1, const char *base,
77 int baselen, const char *path)
78{
79 char *fullpath, *slash;
80 size_t len;
81
82 fullpath = buildpath(base, baselen, path);
83 slash = (fullpath[0] == '/' ? "" : "/");
Mark Lodato6c1a7362010-01-31 14:25:03 -050084 ctx.page.etag = sha1_to_hex(sha1);
Lukas Fleischerf60ffa12014-01-15 21:53:15 +010085 cgit_print_http_headers();
Lars Hjemli7f88d202011-06-12 20:49:35 +000086 htmlf("<html><head><title>%s", slash);
87 html_txt(fullpath);
88 htmlf("</title></head>\n<body>\n<h2>%s", slash);
89 html_txt(fullpath);
90 html("</h2>\n<ul>\n");
91 len = strlen(fullpath);
92 if (len > 1) {
93 fullpath[len - 1] = 0;
94 slash = strrchr(fullpath, '/');
95 if (slash)
96 *(slash + 1) = 0;
Christian Hesse08a2b812015-10-09 14:55:50 +020097 else {
98 free(fullpath);
Lars Hjemli7f88d202011-06-12 20:49:35 +000099 fullpath = NULL;
Christian Hesse08a2b812015-10-09 14:55:50 +0200100 }
Lars Hjemli7f88d202011-06-12 20:49:35 +0000101 html("<li>");
102 cgit_plain_link("../", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
103 fullpath);
104 html("</li>\n");
105 }
John Keepingfb3655d2013-04-06 10:28:57 +0100106 free(fullpath);
Mark Lodato6c1a7362010-01-31 14:25:03 -0500107}
108
Lars Hjemli7f88d202011-06-12 20:49:35 +0000109static void print_dir_entry(const unsigned char *sha1, const char *base,
110 int baselen, const char *path, unsigned mode)
Mark Lodato6c1a7362010-01-31 14:25:03 -0500111{
Lars Hjemli7f88d202011-06-12 20:49:35 +0000112 char *fullpath;
113
114 fullpath = buildpath(base, baselen, path);
Lars Hjemli74218572011-06-15 10:10:41 +0200115 if (!S_ISDIR(mode) && !S_ISGITLINK(mode))
Lars Hjemli7f88d202011-06-12 20:49:35 +0000116 fullpath[strlen(fullpath) - 1] = 0;
117 html(" <li>");
Lars Hjemli74218572011-06-15 10:10:41 +0200118 if (S_ISGITLINK(mode)) {
119 cgit_submodule_link(NULL, fullpath, sha1_to_hex(sha1));
120 } else
121 cgit_plain_link(path, NULL, NULL, ctx.qry.head, ctx.qry.sha1,
122 fullpath);
Lars Hjemli7f88d202011-06-12 20:49:35 +0000123 html("</li>\n");
John Keepingfb3655d2013-04-06 10:28:57 +0100124 free(fullpath);
Mark Lodato6c1a7362010-01-31 14:25:03 -0500125}
126
127static void print_dir_tail(void)
128{
129 html(" </ul>\n</body></html>\n");
130}
131
Christian Hesse7358f632015-02-07 14:18:28 +0100132static int walk_tree(const unsigned char *sha1, struct strbuf *base,
133 const char *pathname, unsigned mode, int stage, void *cbdata)
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200134{
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100135 struct walk_tree_context *walk_tree_ctx = cbdata;
136
Christian Hesse7358f632015-02-07 14:18:28 +0100137 if (base->len == walk_tree_ctx->match_baselen) {
Lukas Fleischera6317502013-03-03 17:10:19 +0100138 if (S_ISREG(mode)) {
139 if (print_object(sha1, pathname))
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100140 walk_tree_ctx->match = 1;
Lukas Fleischera6317502013-03-03 17:10:19 +0100141 } else if (S_ISDIR(mode)) {
Christian Hesse7358f632015-02-07 14:18:28 +0100142 print_dir(sha1, base->buf, base->len, pathname);
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100143 walk_tree_ctx->match = 2;
Mark Lodato6c1a7362010-01-31 14:25:03 -0500144 return READ_TREE_RECURSIVE;
145 }
Christian Hesse7358f632015-02-07 14:18:28 +0100146 } else if (base->len > walk_tree_ctx->match_baselen) {
147 print_dir_entry(sha1, base->buf, base->len, pathname, mode);
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100148 walk_tree_ctx->match = 2;
Lukas Fleischera6317502013-03-03 17:10:19 +0100149 } else if (S_ISDIR(mode)) {
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200150 return READ_TREE_RECURSIVE;
Lukas Fleischera6317502013-03-03 17:10:19 +0100151 }
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200152
Mark Lodato74ebf822010-01-31 01:07:41 -0500153 return 0;
154}
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200155
Mark Lodato74ebf822010-01-31 01:07:41 -0500156static int basedir_len(const char *path)
157{
158 char *p = strrchr(path, '/');
159 if (p)
160 return p - path + 1;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200161 return 0;
162}
163
Lukas Fleischerf60ffa12014-01-15 21:53:15 +0100164void cgit_print_plain(void)
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200165{
Lukas Fleischerf60ffa12014-01-15 21:53:15 +0100166 const char *rev = ctx.qry.sha1;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200167 unsigned char sha1[20];
168 struct commit *commit;
John Keepingc1633c62013-03-02 12:32:11 +0000169 struct pathspec_item path_items = {
Lukas Fleischerf60ffa12014-01-15 21:53:15 +0100170 .match = ctx.qry.path,
171 .len = ctx.qry.path ? strlen(ctx.qry.path) : 0
John Keepingc1633c62013-03-02 12:32:11 +0000172 };
173 struct pathspec paths = {
174 .nr = 1,
175 .items = &path_items
176 };
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100177 struct walk_tree_context walk_tree_ctx = {
178 .match = 0
179 };
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200180
181 if (!rev)
Lukas Fleischerf60ffa12014-01-15 21:53:15 +0100182 rev = ctx.qry.head;
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200183
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200184 if (get_sha1(rev, sha1)) {
John Keeping2b3e76a2015-08-14 12:47:04 +0100185 cgit_print_error_page(404, "Not found", "Not found");
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200186 return;
187 }
188 commit = lookup_commit_reference(sha1);
189 if (!commit || parse_commit(commit)) {
John Keeping2b3e76a2015-08-14 12:47:04 +0100190 cgit_print_error_page(404, "Not found", "Not found");
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200191 return;
192 }
John Keepingc1633c62013-03-02 12:32:11 +0000193 if (!path_items.match) {
194 path_items.match = "";
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100195 walk_tree_ctx.match_baselen = -1;
Christian Hesse559ab5e2016-01-05 07:38:53 +0100196 print_dir(commit->tree->object.oid.hash, "", 0, "");
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100197 walk_tree_ctx.match = 2;
Mark Lodato6c1a7362010-01-31 14:25:03 -0500198 }
199 else
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100200 walk_tree_ctx.match_baselen = basedir_len(path_items.match);
201 read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
202 if (!walk_tree_ctx.match)
John Keeping2b3e76a2015-08-14 12:47:04 +0100203 cgit_print_error_page(404, "Not found", "Not found");
Lukas Fleischerb1db30c2013-03-03 17:27:54 +0100204 else if (walk_tree_ctx.match == 2)
Mark Lodato6c1a7362010-01-31 14:25:03 -0500205 print_dir_tail();
Lars Hjemlie5da4bc2008-08-06 10:53:50 +0200206}