10 files changed, 166 insertions, 56 deletions

diff --git a/Makefile b/Makefile
index 914db1c..5e16a4f 100644
--- a/Makefile
+++ b/Makefile
@@ -31,14 +31,12 @@ CFLAGS += -DCGIT_SCRIPT_NAME='"$(CGIT_SCRIPT_NAME)"'
 
 
 #
-# If make is run on a nongit platform, we need to get the git sources as a tarball.
-# But there is currently no recent enough tarball available on kernel.org, so download
-# a zipfile from hjemli.net instead
+# If make is run on a nongit platform, get the git sources as a tarball.
 #
 GITVER = $(shell git version 2>/dev/null || echo nogit)
 ifeq ($(GITVER),nogit)
-GITURL = http://hjemli.net/git/git/snapshot/?id=v1.5.2-rc2
-INITGIT = test -e git/git.c || (curl "$(GITURL)" > tmp.zip && unzip tmp.zip)
+GITURL = http://www.kernel.org/pub/software/scm/git/git-1.5.2.tar.bz2
+INITGIT = test -e git/git.c || ((curl "$(GITURL)" | tar -xj) && mv git-1.5.2 git)
 else
 INITGIT = ./submodules.sh -i
 endif
diff --git a/cache.c b/cache.c
index 8df7c26..372e38d 100644
--- a/cache.c
+++ b/cache.c
@@ -12,18 +12,23 @@ const int NOLOCK = -1;
 
 char *cache_safe_filename(const char *unsafe)
 {
-	static char buf[PATH_MAX];
-	char *s = buf;
+	static char buf[4][PATH_MAX];
+	static int bufidx;
+	char *s;
 	char c;
 
+	bufidx++;
+	bufidx &= 3;
+	s = buf[bufidx];
+
 	while(unsafe && (c = *unsafe++) != 0) {
-		if (c == '/' || c == ' ' || c == '&' || c == '|' || 
+		if (c == '/' || c == ' ' || c == '&' || c == '|' ||
 		    c == '>' || c == '<' || c == '.')
 			c = '_';
 		*s++ = c;
 	}
 	*s = '\0';
-	return buf;
+	return buf[bufidx];
 }
 
 int cache_exist(struct cacheitem *item)
@@ -43,15 +48,18 @@ int cache_create_dirs()
 	if (mkdir(path, S_IRWXU) && errno!=EEXIST)
 		return 0;
 
-	if (!cgit_query_repo)
+	if (!cgit_repo)
 		return 0;
 
-	path = fmt("%s/%s", cgit_cache_root, cgit_query_repo);
+	path = fmt("%s/%s", cgit_cache_root,
+		   cache_safe_filename(cgit_repo->url));
+
 	if (mkdir(path, S_IRWXU) && errno!=EEXIST)
 		return 0;
 
 	if (cgit_query_page) {
-		path = fmt("%s/%s/%s", cgit_cache_root, cgit_query_repo, 
+		path = fmt("%s/%s/%s", cgit_cache_root,
+			   cache_safe_filename(cgit_repo->url),
 			   cgit_query_page);
 		if (mkdir(path, S_IRWXU) && errno!=EEXIST)
 			return 0;
diff --git a/cgit.c b/cgit.c
index 3e7e595..e5d8fbd 100644
--- a/cgit.c
+++ b/cgit.c
@@ -11,29 +11,9 @@
 const char cgit_version[] = CGIT_VERSION;
 
 
-static struct repoinfo *cgit_get_repoinfo(char *url)
-{
-	int i;
-	struct repoinfo *repo;
-
-	for (i=0; i<cgit_repolist.count; i++) {
-		repo = &cgit_repolist.repos[i];
-		if (!strcmp(repo->url, url))
-			return repo;
-	}
-	return NULL;
-}
-
-
 static int cgit_prepare_cache(struct cacheitem *item)
 {
-	if (!cgit_query_repo) {
-		item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
-		item->ttl = cgit_cache_root_ttl;
-		return 1;
-	}
-	cgit_repo = cgit_get_repoinfo(cgit_query_repo);
-	if (!cgit_repo) {
+	if (!cgit_repo && cgit_query_repo) {
 		char *title = fmt("%s - %s", cgit_root_title, "Bad request");
 		cgit_print_docstart(title, item);
 		cgit_print_pageheader(title, 0);
@@ -42,13 +22,19 @@ static int cgit_prepare_cache(struct cacheitem *item)
 		return 0;
 	}
 
-	if (!cgit_query_page) {
+	if (!cgit_repo) {
+		item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
+		item->ttl = cgit_cache_root_ttl;
+		return 1;
+	}
+
+	if (!cgit_cmd) {
 		item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root,
-			   cgit_repo->url));
+			   cache_safe_filename(cgit_repo->url)));
 		item->ttl = cgit_cache_repo_ttl;
 	} else {
 		item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
-			   cgit_repo->url, cgit_query_page,
+			   cache_safe_filename(cgit_repo->url), cgit_query_page,
 			   cache_safe_filename(cgit_querystring)));
 		if (cgit_query_has_symref)
 			item->ttl = cgit_cache_dynamic_ttl;
@@ -82,25 +68,20 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	show_search = 0;
 	setenv("GIT_DIR", cgit_repo->path, 1);
 
-	if (cgit_query_page) {
-	    if (cgit_repo->snapshots && !strcmp(cgit_query_page, "snapshot")) {
+	if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) {
 		cgit_print_snapshot(item, cgit_query_sha1, "zip",
 				    cgit_repo->url, cgit_query_name);
 		return;
-	    }
-	    if (!strcmp(cgit_query_page, "blob")) {
-		    cgit_print_blob(item, cgit_query_sha1, cgit_query_path);
-		    return;
-	    }
 	}
 
-	if (cgit_query_page && !strcmp(cgit_query_page, "log"))
-		show_search = 1;
+	if (cgit_cmd == CMD_BLOB) {
+		cgit_print_blob(item, cgit_query_sha1, cgit_query_path);
+		return;
+	}
 
+	show_search = (cgit_cmd == CMD_LOG);
 	cgit_print_docstart(title, item);
-
-
-	if (!cgit_query_page) {
+	if (!cgit_cmd) {
 		cgit_print_pageheader("summary", show_search);
 		cgit_print_summary();
 		cgit_print_docend();
@@ -109,20 +90,26 @@ static void cgit_print_repo_page(struct cacheitem *item)
 
 	cgit_print_pageheader(cgit_query_page, show_search);
 
-	if (!strcmp(cgit_query_page, "log")) {
+	switch(cgit_cmd) {
+	case CMD_LOG:
 		cgit_print_log(cgit_query_head, cgit_query_ofs,
 			       cgit_max_commit_count, cgit_query_search,
 			       cgit_query_path);
-	} else if (!strcmp(cgit_query_page, "tree")) {
+		break;
+	case CMD_TREE:
 		cgit_print_tree(cgit_query_head, cgit_query_sha1, cgit_query_path);
-	} else if (!strcmp(cgit_query_page, "commit")) {
+		break;
+	case CMD_COMMIT:
 		cgit_print_commit(cgit_query_head);
-	} else if (!strcmp(cgit_query_page, "view")) {
+		break;
+	case CMD_VIEW:
 		cgit_print_view(cgit_query_sha1, cgit_query_path);
-	} else if (!strcmp(cgit_query_page, "diff")) {
+		break;
+	case CMD_DIFF:
 		cgit_print_diff(cgit_query_head, cgit_query_sha1, cgit_query_sha2,
 				cgit_query_path);
-	} else {
+		break;
+	default:
 		cgit_print_error("Invalid request");
 	}
 	cgit_print_docend();
@@ -143,7 +130,7 @@ static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 		chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
 	}
 
-	if (cgit_query_repo)
+	if (cgit_repo)
 		cgit_print_repo_page(item);
 	else
 		cgit_print_repolist(item);
@@ -248,6 +235,7 @@ int main(int argc, const char **argv)
 	cgit_repolist.repos = NULL;
 
 	cgit_read_config(CGIT_CONFIG, cgit_global_config_cb);
+	cgit_repo = NULL;
 	if (getenv("SCRIPT_NAME"))
 		cgit_script_name = xstrdup(getenv("SCRIPT_NAME"));
 	if (getenv("QUERY_STRING"))
diff --git a/cgit.h b/cgit.h
index 8a69a1f..8927236 100644
--- a/cgit.h
+++ b/cgit.h
@@ -18,6 +18,17 @@
 #include <xdiff/xdiff.h>
 
 
+/*
+ * The valid cgit repo-commands
+ */
+#define CMD_LOG      1
+#define CMD_COMMIT   2
+#define CMD_DIFF     3
+#define CMD_TREE     4
+#define CMD_VIEW     5
+#define CMD_BLOB     6
+#define CMD_SNAPSHOT 7
+
 typedef void (*configfn)(const char *name, const char *value);
 typedef void (*filepair_fn)(struct diff_filepair *pair);
 typedef void (*linediff_fn)(char *line, int len);
@@ -72,10 +83,12 @@ extern const char cgit_version[];
 
 extern struct repolist cgit_repolist;
 extern struct repoinfo *cgit_repo;
+extern int cgit_cmd;
 
 extern char *cgit_root_title;
 extern char *cgit_css;
 extern char *cgit_logo;
+extern char *cgit_index_header;
 extern char *cgit_logo_link;
 extern char *cgit_module_link;
 extern char *cgit_virtual_root;
@@ -114,6 +127,8 @@ extern int   cgit_query_ofs;
 
 extern int htmlfd;
 
+extern int cgit_get_cmd_index(const char *cmd);
+extern struct repoinfo *cgit_get_repoinfo(const char *url);
 extern void cgit_global_config_cb(const char *name, const char *value);
 extern void cgit_repo_config_cb(const char *name, const char *value);
 extern void cgit_querystring_cb(const char *name, const char *value);
@@ -146,11 +161,13 @@ extern void html_hidden(char *name, char *value);
 extern void html_link_open(char *url, char *title, char *class);
 extern void html_link_close(void);
 extern void html_filemode(unsigned short mode);
+extern int html_include(const char *filename);
 
 extern int cgit_read_config(const char *filename, configfn fn);
 extern int cgit_parse_query(char *txt, configfn fn);
 extern struct commitinfo *cgit_parse_commit(struct commit *commit);
 extern struct taginfo *cgit_parse_tag(struct tag *tag);
+extern void cgit_parse_url(const char *url);
 
 extern char *cache_safe_filename(const char *unsafe);
 extern int cache_lock(struct cacheitem *item);
diff --git a/git b/git
-Subproject 9159afbfce955db86373dab95b5f8e31fb763da
+Subproject aba170cdb4874b72dd619e6f7bbc13c33295f83
diff --git a/html.c b/html.c
index 175b4b6..33a956f 100644
--- a/html.c
+++ b/html.c
@@ -166,3 +166,17 @@ void html_filemode(unsigned short mode)
 	html_fileperm(mode >> 3);
 	html_fileperm(mode);
 }
+
+int html_include(const char *filename)
+{
+	FILE *f;
+	char buf[4096];
+	size_t len;
+
+	if (!(f = fopen(filename, "r")))
+		return -1;
+	while((len = fread(buf, 1, 4096, f)) > 0)
+		write(htmlfd, buf, len);
+	fclose(f);
+	return 0;
+}
diff --git a/parsing.c b/parsing.c
index 36b0f0c..4420e58 100644
--- a/parsing.c
+++ b/parsing.c
@@ -132,6 +132,50 @@ int cgit_parse_query(char *txt, configfn fn)
 	return 0;
 }
 
+/*
+ * url syntax: [repo ['/' cmd [ '/' path]]]
+ *   repo: any valid repo url, may contain '/'
+ *   cmd:  log | commit | diff | tree | view | blob | snapshot
+ *   path: any valid path, may contain '/'
+ *
+ */
+void cgit_parse_url(const char *url)
+{
+	char *cmd, *p;
+
+	cgit_repo = NULL;
+	if (!url || url[0] == '\0')
+		return;
+
+	cgit_repo = cgit_get_repoinfo(url);
+	if (cgit_repo) {
+		cgit_query_repo = cgit_repo->url;
+		return;
+	}
+
+	cmd = strchr(url, '/');
+	while (!cgit_repo && cmd) {
+		cmd[0] = '\0';
+		cgit_repo = cgit_get_repoinfo(url);
+		if (cgit_repo == NULL) {
+			cmd[0] = '/';
+			cmd = strchr(cmd + 1, '/');
+			continue;
+		}
+
+		cgit_query_repo = cgit_repo->url;
+		p = strchr(cmd + 1, '/');
+		if (p) {
+			p[0] = '\0';
+			if (p[1])
+				cgit_query_path = xstrdup(p + 1);
+		}
+		cgit_cmd = cgit_get_cmd_index(cmd + 1);
+		cgit_query_page = xstrdup(cmd + 1);
+		return;
+	}
+}
+
 char *substr(const char *head, const char *tail)
 {
 	char *buf;
diff --git a/shared.c b/shared.c
index 4ddba61..65af11a 100644
--- a/shared.c
+++ b/shared.c
@@ -10,10 +10,12 @@
 
 struct repolist cgit_repolist;
 struct repoinfo *cgit_repo;
+int cgit_cmd;
 
 char *cgit_root_title   = "Git repository browser";
 char *cgit_css          = "/cgit.css";
 char *cgit_logo         = "/git-logo.png";
+char *cgit_index_header = NULL;
 char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
 char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
 char *cgit_virtual_root = NULL;
@@ -52,6 +54,18 @@ int   cgit_query_ofs    = 0;
 
 int htmlfd = 0;
 
+
+int cgit_get_cmd_index(const char *cmd)
+{
+	static char *cmds[] = {"log", "commit", "diff", "tree", "view", "blob", "snapshot", NULL};
+	int i;
+
+	for(i = 0; cmds[i]; i++)
+		if (!strcmp(cmd, cmds[i]))
+			return i + 1;
+	return 0;
+}
+
 int chk_zero(int result, char *msg)
 {
 	if (result != 0)
@@ -95,6 +109,19 @@ struct repoinfo *add_repo(const char *url)
 	return ret;
 }
 
+struct repoinfo *cgit_get_repoinfo(const char *url)
+{
+	int i;
+	struct repoinfo *repo;
+
+	for (i=0; i<cgit_repolist.count; i++) {
+		repo = &cgit_repolist.repos[i];
+		if (!strcmp(repo->url, url))
+			return repo;
+	}
+	return NULL;
+}
+
 void cgit_global_config_cb(const char *name, const char *value)
 {
 	if (!strcmp(name, "root-title"))
@@ -103,6 +130,8 @@ void cgit_global_config_cb(const char *name, const char *value)
 		cgit_css = xstrdup(value);
 	else if (!strcmp(name, "logo"))
 		cgit_logo = xstrdup(value);
+	else if (!strcmp(name, "index-header"))
+		cgit_index_header = xstrdup(value);
 	else if (!strcmp(name, "logo-link"))
 		cgit_logo_link = xstrdup(value);
 	else if (!strcmp(name, "module-link"))
@@ -163,8 +192,12 @@ void cgit_querystring_cb(const char *name, const char *value)
 {
 	if (!strcmp(name,"r")) {
 		cgit_query_repo = xstrdup(value);
+		cgit_repo = cgit_get_repoinfo(value);
 	} else if (!strcmp(name, "p")) {
 		cgit_query_page = xstrdup(value);
+		cgit_cmd = cgit_get_cmd_index(value);
+	} else if (!strcmp(name, "url")) {
+		cgit_parse_url(value);
 	} else if (!strcmp(name, "q")) {
 		cgit_query_search = xstrdup(value);
 	} else if (!strcmp(name, "h")) {
diff --git a/ui-repolist.c b/ui-repolist.c
index 8724589..33e3e7f 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -18,6 +18,11 @@ void cgit_print_repolist(struct cacheitem *item)
 	cgit_print_pageheader(cgit_root_title, 0);
 
 	html("<table class='list nowrap'>");
+	if (cgit_index_header) {
+		html("<tr class='nohover'><td colspan='4' class='include-block'>");
+		html_include(cgit_index_header);
+		html("</td></tr>");
+	}
 	html("<tr class='nohover'>"
 	     "<th class='left'>Name</th>"
 	     "<th class='left'>Description</th>"
diff --git a/ui-shared.c b/ui-shared.c
index 6211056..c7fbc5e 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -68,7 +68,10 @@ char *cgit_pageurl(const char *reponame, const char *pagename,
 			return fmt("%s/%s/%s/", cgit_virtual_root, reponame,
 				   pagename);
 	} else {
-		return fmt("?r=%s&p=%s&%s", reponame, pagename, query);
+		if (query)
+			return fmt("?r=%s&p=%s&%s", reponame, pagename, query);
+		else
+			return fmt("?r=%s&p=%s", reponame, pagename);
 	}
 }