1 files changed, 32 insertions, 7 deletions

diff --git a/cgit.c b/cgit.c
index 0fa203c..2795ecc 100644
--- a/cgit.c
+++ b/cgit.c
@@ -57,105 +57,131 @@ static int cgit_prepare_cache(struct cacheitem *item)
                 else
                         item->ttl = cgit_cache_repo_ttl;
         }
         return 1;
 }
 
 static void cgit_print_repo_page(struct cacheitem *item)
 {
         char *title;
         int show_search;
 
         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 && !strcmp(cgit_query_page, "snapshot")) {
+                cgit_print_snapshot(item, cgit_query_sha1, "zip", 
+                                    cgit_repo->url, cgit_query_name);
+                return;
+        }
+
         if (cgit_query_page && !strcmp(cgit_query_page, "log"))
                 show_search = 1;
         cgit_print_docstart(title, item);
         cgit_print_pageheader(title, show_search);
         if (!cgit_query_page) {
                 cgit_print_summary();
         } else if (!strcmp(cgit_query_page, "log")) {
-                cgit_print_log(cgit_query_head, cgit_query_ofs, 100, cgit_query_search);
+                cgit_print_log(cgit_query_head, cgit_query_ofs, 100, 
+                               cgit_query_search);
         } else if (!strcmp(cgit_query_page, "tree")) {
                 cgit_print_tree(cgit_query_sha1, cgit_query_path);
         } else if (!strcmp(cgit_query_page, "commit")) {
                 cgit_print_commit(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "view")) {
                 cgit_print_view(cgit_query_sha1);
         } else if (!strcmp(cgit_query_page, "diff")) {
                 cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
+        } else {
+                cgit_print_error("Invalid request");
         }
         cgit_print_docend();
 }
 
-static void cgit_fill_cache(struct cacheitem *item)
+static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 {
         static char buf[PATH_MAX];
+        int stdout2;
 
         getcwd(buf, sizeof(buf));
-        htmlfd = item->fd;
         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)
                 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)) {
                 if (!cache_lock(item)) {
                         sleep(1);
                         goto top;
                 }
                 if (!cache_exist(item)) {
-                        cgit_fill_cache(item);
+                        cgit_fill_cache(item, 1);
                         cache_unlock(item);
                 } else {
                         cache_cancel_lock(item);
                 }
         } else if (cache_expired(item) && cache_lock(item)) {
                 if (cache_expired(item)) {
-                        cgit_fill_cache(item);
+                        cgit_fill_cache(item, 1);
                         cache_unlock(item);
                 } else {
                         cache_cancel_lock(item);
                 }
         }
 }
 
 static void cgit_print_cache(struct cacheitem *item)
 {
         static char buf[4096];
         ssize_t i;
 
         int fd = open(item->name, O_RDONLY);
         if (fd<0)
                 die("Unable to open cached file %s", item->name);
 
         while((i=read(fd, buf, sizeof(buf))) > 0)
                 write(STDOUT_FILENO, buf, i);
 
         close(fd);
 }
 
 static void cgit_parse_args(int argc, const char **argv)
 {
@@ -188,32 +214,31 @@ static void cgit_parse_args(int argc, const char **argv)
                 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("/etc/cgitrc", cgit_global_config_cb);
         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) {
-                item.fd = STDOUT_FILENO;
-                cgit_fill_cache(&item);
+                cgit_fill_cache(&item, 0);
         } else {
                 cgit_check_cache(&item);
                 cgit_print_cache(&item);
         }
         return 0;
 }