Merge branch 'virtual-url'

* virtual-url:
  Don't be fooled by trailing '/' in url-parameter
  cache_safe_filename() needs more buffers
  Enable url=value querystring parameter
  Add lookup-function for valid repo commands
  Move cgit_get_repoinfo into shared.c

6 files changed, 139 insertions, 51 deletions

diff --git a/cache.c b/cache.c
index 8df7c26..372e38d 100644
--- a/cache.c
+++ b/cache.c
@@ -1,78 +1,86 @@
 /* cache.c: cache management
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 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)
 {
         if (stat(item->name, &item->st)) {
                 item->st.st_mtime = 0;
                 return 0;
         }
         return 1;
 }
 
 int cache_create_dirs()
 {
         char *path;
 
         path = fmt("%s", cgit_cache_root);
         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;
         }
         return 1;
 }
 
 int cache_refill_overdue(const char *lockfile)
 {
         struct stat st;
 
         if (stat(lockfile, &st))
                 return 0;
         else
                 return (time(NULL) - st.st_mtime > cgit_cache_max_create_time);
 }
 
 int cache_lock(struct cacheitem *item)
 {
         int i = 0;
         char *lockfile = xstrdup(fmt("%s.lock", item->name));
 
  top:
         if (++i > cgit_max_lock_attempts)
diff --git a/cgit.c b/cgit.c
index 3e7e595..e5d8fbd 100644
--- a/cgit.c
+++ b/cgit.c
@@ -1,170 +1,157 @@
 /* cgit.c: cgi for the git scm
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 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);
                 cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
                 cgit_print_docend();
                 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;
                 else if (cgit_query_has_sha1)
                         item->ttl = cgit_cache_static_ttl;
                 else
                         item->ttl = cgit_cache_repo_ttl;
         }
         return 1;
 }
 
 static void cgit_print_repo_page(struct cacheitem *item)
 {
         char *title;
         int show_search;
 
         if (!cgit_query_head)
                 cgit_query_head = cgit_repo->defbranch;
 
         if (chdir(cgit_repo->path)) {
                 title = fmt("%s - %s", cgit_root_title, "Bad request");
                 cgit_print_docstart(title, item);
                 cgit_print_pageheader(title, 0);
                 cgit_print_error(fmt("Unable to scan repository: %s",
                                      strerror(errno)));
                 cgit_print_docend();
                 return;
         }
 
         title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
         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();
                 return;
         }
 
         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();
 }
 
 static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 {
         static char buf[PATH_MAX];
         int stdout2;
 
         getcwd(buf, sizeof(buf));
         item->st.st_mtime = time(NULL);
 
         if (use_cache) {
                 stdout2 = chk_positive(dup(STDOUT_FILENO),
                                        "Preserving STDOUT");
                 chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
                 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);
 
         if (use_cache) {
                 chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
                 chk_positive(dup2(stdout2, STDOUT_FILENO),
                              "Restoring original STDOUT");
                 chk_zero(close(stdout2), "Closing temporary STDOUT");
         }
 
         chdir(buf);
 }
 
 static void cgit_check_cache(struct cacheitem *item)
 {
         int i = 0;
 
  top:
         if (++i > cgit_max_lock_attempts) {
                 die("cgit_refresh_cache: unable to lock %s: %s",
                     item->name, strerror(errno));
         }
         if (!cache_exist(item)) {
@@ -227,40 +214,41 @@ static void cgit_parse_args(int argc, const char **argv)
                         cgit_query_head = xstrdup(argv[i]+7);
                         cgit_query_has_symref = 1;
                 }
                 if (!strncmp(argv[i], "--sha1=", 7)) {
                         cgit_query_sha1 = xstrdup(argv[i]+7);
                         cgit_query_has_sha1 = 1;
                 }
                 if (!strncmp(argv[i], "--ofs=", 6)) {
                         cgit_query_ofs = atoi(argv[i]+6);
                 }
         }
 }
 
 int main(int argc, const char **argv)
 {
         struct cacheitem item;
 
         htmlfd = STDOUT_FILENO;
         item.st.st_mtime = time(NULL);
         cgit_repolist.length = 0;
         cgit_repolist.count = 0;
         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"))
                 cgit_querystring = xstrdup(getenv("QUERY_STRING"));
         cgit_parse_args(argc, argv);
         cgit_parse_query(cgit_querystring, cgit_querystring_cb);
         if (!cgit_prepare_cache(&item))
                 return 0;
         if (cgit_nocache) {
                 cgit_fill_cache(&item, 0);
         } else {
                 cgit_check_cache(&item);
                 cgit_print_cache(&item);
         }
         return 0;
 }
diff --git a/cgit.h b/cgit.h
index 3ee11bb..e0879bd 100644
--- a/cgit.h
+++ b/cgit.h
@@ -1,44 +1,55 @@
 #ifndef CGIT_H
 #define CGIT_H
 
 
 #include <git-compat-util.h>
 #include <cache.h>
 #include <grep.h>
 #include <object.h>
 #include <tree.h>
 #include <commit.h>
 #include <tag.h>
 #include <diff.h>
 #include <diffcore.h>
 #include <refs.h>
 #include <revision.h>
 #include <log-tree.h>
 #include <archive.h>
 #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);
 
 struct cacheitem {
         char *name;
         struct stat st;
         int ttl;
         int fd;
 };
 
 struct repoinfo {
         char *url;
         char *name;
         char *path;
         char *desc;
         char *owner;
         char *defbranch;
         char *module_link;
         int snapshots;
         int enable_log_filecount;
         int enable_log_linecount;
 };
 
@@ -50,128 +61,132 @@ struct repolist {
 
 struct commitinfo {
         struct commit *commit;
         char *author;
         char *author_email;
         unsigned long author_date;
         char *committer;
         char *committer_email;
         unsigned long committer_date;
         char *subject;
         char *msg;
 };
 
 struct taginfo {
         char *tagger;
         char *tagger_email;
         int tagger_date;
         char *msg;
 };
 
 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;
 extern char *cgit_script_name;
 extern char *cgit_cache_root;
 
 extern int cgit_nocache;
 extern int cgit_snapshots;
 extern int cgit_enable_log_filecount;
 extern int cgit_enable_log_linecount;
 extern int cgit_max_lock_attempts;
 extern int cgit_cache_root_ttl;
 extern int cgit_cache_repo_ttl;
 extern int cgit_cache_dynamic_ttl;
 extern int cgit_cache_static_ttl;
 extern int cgit_cache_max_create_time;
 
 extern int cgit_max_msg_len;
 extern int cgit_max_repodesc_len;
 extern int cgit_max_commit_count;
 
 extern int cgit_query_has_symref;
 extern int cgit_query_has_sha1;
 
 extern char *cgit_querystring;
 extern char *cgit_query_repo;
 extern char *cgit_query_page;
 extern char *cgit_query_search;
 extern char *cgit_query_head;
 extern char *cgit_query_sha1;
 extern char *cgit_query_sha2;
 extern char *cgit_query_path;
 extern char *cgit_query_name;
 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);
 
 extern int chk_zero(int result, char *msg);
 extern int chk_positive(int result, char *msg);
 
 extern int hextoint(char c);
 
 extern void *cgit_free_commitinfo(struct commitinfo *info);
 
 extern int cgit_diff_files(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            linediff_fn fn);
 
 extern void cgit_diff_tree(const unsigned char *old_sha1,
                            const unsigned char *new_sha1,
                            filepair_fn fn);
 
 extern void cgit_diff_commit(struct commit *commit, filepair_fn fn);
 
 extern char *fmt(const char *format,...);
 
 extern void html(const char *txt);
 extern void htmlf(const char *format,...);
 extern void html_txt(char *txt);
 extern void html_ntxt(int len, char *txt);
 extern void html_attr(char *txt);
 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);
 extern int cache_unlock(struct cacheitem *item);
 extern int cache_cancel_lock(struct cacheitem *item);
 extern int cache_exist(struct cacheitem *item);
 extern int cache_expired(struct cacheitem *item);
 
 extern char *cgit_repourl(const char *reponame);
 extern char *cgit_pageurl(const char *reponame, const char *pagename,
                           const char *query);
 
 extern void cgit_print_error(char *msg);
 extern void cgit_print_date(unsigned long secs);
 extern void cgit_print_docstart(char *title, struct cacheitem *item);
 extern void cgit_print_docend();
 extern void cgit_print_pageheader(char *title, int show_search);
 extern void cgit_print_snapshot_start(const char *mimetype,
                                       const char *filename,
                                       struct cacheitem *item);
 
 extern void cgit_print_repolist(struct cacheitem *item);
 extern void cgit_print_summary();
 extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *path);
diff --git a/parsing.c b/parsing.c
index 36b0f0c..4420e58 100644
--- a/parsing.c
+++ b/parsing.c
@@ -111,48 +111,92 @@ int cgit_parse_query(char *txt, configfn fn)
 
         t = txt = xstrdup(txt);
 
         while((c=*t) != '\0') {
                 if (c=='=') {
                         *t = '\0';
                         value = t+1;
                 } else if (c=='+') {
                         *t = ' ';
                 } else if (c=='%') {
                         t = convert_query_hexchar(t);
                 } else if (c=='&') {
                         *t = '\0';
                         (*fn)(txt, value);
                         txt = t+1;
                         value = NULL;
                 }
                 t++;
         }
         if (t!=txt)
                 (*fn)(txt, value);
         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;
 
         buf = xmalloc(tail - head + 1);
         strncpy(buf, head, tail - head);
         buf[tail - head] = '\0';
         return buf;
 }
 
 struct commitinfo *cgit_parse_commit(struct commit *commit)
 {
         struct commitinfo *ret;
         char *p = commit->buffer, *t = commit->buffer;
 
         ret = xmalloc(sizeof(*ret));
         ret->commit = commit;
         ret->author = NULL;
         ret->author_email = NULL;
         ret->committer = NULL;
         ret->committer_email = NULL;
         ret->subject = NULL;
         ret->msg = NULL;
 
diff --git a/shared.c b/shared.c
index 54b1813..45fde7f 100644
--- a/shared.c
+++ b/shared.c
@@ -1,120 +1,146 @@
 /* shared.c: global vars + some callback functions
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 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;
 char *cgit_script_name  = CGIT_SCRIPT_NAME;
 char *cgit_cache_root   = "/var/cache/cgit";
 
 int cgit_nocache               =  0;
 int cgit_snapshots             =  0;
 int cgit_enable_log_filecount  =  0;
 int cgit_enable_log_linecount  =  0;
 int cgit_max_lock_attempts     =  5;
 int cgit_cache_root_ttl        =  5;
 int cgit_cache_repo_ttl        =  5;
 int cgit_cache_dynamic_ttl     =  5;
 int cgit_cache_static_ttl      = -1;
 int cgit_cache_max_create_time =  5;
 
 int cgit_max_msg_len = 60;
 int cgit_max_repodesc_len = 60;
 int cgit_max_commit_count = 50;
 
 int cgit_query_has_symref = 0;
 int cgit_query_has_sha1   = 0;
 
 char *cgit_querystring  = NULL;
 char *cgit_query_repo   = NULL;
 char *cgit_query_page   = NULL;
 char *cgit_query_head   = NULL;
 char *cgit_query_search = NULL;
 char *cgit_query_sha1   = NULL;
 char *cgit_query_sha2   = NULL;
 char *cgit_query_path   = NULL;
 char *cgit_query_name   = NULL;
 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)
                 die("%s: %s", msg, strerror(errno));
         return result;
 }
 
 int chk_positive(int result, char *msg)
 {
         if (result <= 0)
                 die("%s: %s", msg, strerror(errno));
         return result;
 }
 
 struct repoinfo *add_repo(const char *url)
 {
         struct repoinfo *ret;
 
         if (++cgit_repolist.count > cgit_repolist.length) {
                 if (cgit_repolist.length == 0)
                         cgit_repolist.length = 8;
                 else
                         cgit_repolist.length *= 2;
                 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
                                                cgit_repolist.length *
                                                sizeof(struct repoinfo));
         }
 
         ret = &cgit_repolist.repos[cgit_repolist.count-1];
         ret->url = xstrdup(url);
         ret->name = ret->url;
         ret->path = NULL;
         ret->desc = NULL;
         ret->owner = NULL;
         ret->defbranch = "master";
         ret->snapshots = cgit_snapshots;
         ret->enable_log_filecount = cgit_enable_log_filecount;
         ret->enable_log_linecount = cgit_enable_log_linecount;
         ret->module_link = cgit_module_link;
         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"))
                 cgit_root_title = xstrdup(value);
         else if (!strcmp(name, "css"))
                 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"))
                 cgit_module_link = xstrdup(value);
         else if (!strcmp(name, "virtual-root"))
                 cgit_virtual_root = xstrdup(value);
         else if (!strcmp(name, "nocache"))
                 cgit_nocache = atoi(value);
         else if (!strcmp(name, "snapshots"))
                 cgit_snapshots = atoi(value);
         else if (!strcmp(name, "enable-log-filecount"))
                 cgit_enable_log_filecount = atoi(value);
         else if (!strcmp(name, "enable-log-linecount"))
                 cgit_enable_log_linecount = atoi(value);
@@ -141,50 +167,54 @@ void cgit_global_config_cb(const char *name, const char *value)
         else if (cgit_repo && !strcmp(name, "repo.path"))
                 cgit_repo->path = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.desc"))
                 cgit_repo->desc = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.owner"))
                 cgit_repo->owner = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.defbranch"))
                 cgit_repo->defbranch = xstrdup(value);
         else if (cgit_repo && !strcmp(name, "repo.snapshots"))
                 cgit_repo->snapshots = cgit_snapshots * atoi(value);
         else if (cgit_repo && !strcmp(name, "repo.enable-log-filecount"))
                 cgit_repo->enable_log_filecount = cgit_enable_log_filecount * atoi(value);
         else if (cgit_repo && !strcmp(name, "repo.enable-log-linecount"))
                 cgit_repo->enable_log_linecount = cgit_enable_log_linecount * atoi(value);
         else if (cgit_repo && !strcmp(name, "repo.module-link"))
                 cgit_repo->module_link= xstrdup(value);
         else if (!strcmp(name, "include"))
                 cgit_read_config(value, cgit_global_config_cb);
 }
 
 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")) {
                 cgit_query_head = xstrdup(value);
                 cgit_query_has_symref = 1;
         } else if (!strcmp(name, "id")) {
                 cgit_query_sha1 = xstrdup(value);
                 cgit_query_has_sha1 = 1;
         } else if (!strcmp(name, "id2")) {
                 cgit_query_sha2 = xstrdup(value);
                 cgit_query_has_sha1 = 1;
         } else if (!strcmp(name, "ofs")) {
                 cgit_query_ofs = atoi(value);
         } else if (!strcmp(name, "path")) {
                 cgit_query_path = xstrdup(value);
         } else if (!strcmp(name, "name")) {
                 cgit_query_name = xstrdup(value);
         }
 }
 
 void *cgit_free_commitinfo(struct commitinfo *info)
 {
         free(info->author);
         free(info->author_email);
diff --git a/ui-shared.c b/ui-shared.c
index 6211056..c7fbc5e 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -47,49 +47,52 @@ char *cgit_rooturl()
         else
                 return cgit_script_name;
 }
 
 char *cgit_repourl(const char *reponame)
 {
         if (cgit_virtual_root) {
                 return fmt("%s/%s/", cgit_virtual_root, reponame);
         } else {
                 return fmt("?r=%s", reponame);
         }
 }
 
 char *cgit_pageurl(const char *reponame, const char *pagename,
                    const char *query)
 {
         if (cgit_virtual_root) {
                 if (query)
                         return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame,
                                    pagename, query);
                 else
                         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);
         }
 }
 
 char *cgit_currurl()
 {
         if (!cgit_virtual_root)
                 return cgit_script_name;
         else if (cgit_query_page)
                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
         else if (cgit_query_repo)
                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
         else
                 return fmt("%s/", cgit_virtual_root);
 }
 
 
 void cgit_print_date(unsigned long secs)
 {
         char buf[32];
         struct tm *time;
 
         time = gmtime(&secs);
         strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
         html_txt(buf);