dirvote: Move the handling of GET /tor/status-vote to dirauth module

In order to further isolate the dirauth code into its module, this moves the
handling of the directory request GET /tor/status-vote/* into the module.

Signed-off-by: David Goulet <dgoulet@torproject.org>

src/or/dirauth/dirvote.c

@@ -3912,3 +3912,57 @@ dirvote_clear_commits(networkstatus_t *ns)
   }
 }
 
+/* The given url is the /tor/status-gove GET directory request. Populates the
+ * items list with strings that we can compress on the fly and dir_items with
+ * cached_dir_t objects that have a precompressed deflated version. */
+void
+dirvote_dirreq_get_status_vote(const char *url, smartlist_t *items,
+                               smartlist_t *dir_items)
+{
+  int current;
+
+  url += strlen("/tor/status-vote/");
+  current = !strcmpstart(url, "current/");
+  url = strchr(url, '/');
+  tor_assert(url);
+  ++url;
+  if (!strcmp(url, "consensus")) {
+    const char *item;
+    tor_assert(!current); /* we handle current consensus specially above,
+                           * since it wants to be spooled. */
+    if ((item = dirvote_get_pending_consensus(FLAV_NS)))
+      smartlist_add(items, (char*)item);
+  } else if (!current && !strcmp(url, "consensus-signatures")) {
+    /* XXXX the spec says that we should implement
+     * current/consensus-signatures too.  It doesn't seem to be needed,
+     * though. */
+    const char *item;
+    if ((item=dirvote_get_pending_detached_signatures()))
+      smartlist_add(items, (char*)item);
+  } else if (!strcmp(url, "authority")) {
+    const cached_dir_t *d;
+    int flags = DGV_BY_ID |
+      (current ? DGV_INCLUDE_PREVIOUS : DGV_INCLUDE_PENDING);
+    if ((d=dirvote_get_vote(NULL, flags)))
+      smartlist_add(dir_items, (cached_dir_t*)d);
+  } else {
+    const cached_dir_t *d;
+    smartlist_t *fps = smartlist_new();
+    int flags;
+    if (!strcmpstart(url, "d/")) {
+      url += 2;
+      flags = DGV_INCLUDE_PENDING | DGV_INCLUDE_PREVIOUS;
+    } else {
+      flags = DGV_BY_ID |
+        (current ? DGV_INCLUDE_PREVIOUS : DGV_INCLUDE_PENDING);
+    }
+    dir_split_resource_into_fingerprints(url, fps, NULL,
+                                         DSR_HEX|DSR_SORT_UNIQ);
+    SMARTLIST_FOREACH(fps, char *, fp, {
+                      if ((d = dirvote_get_vote(fp, flags)))
+                      smartlist_add(dir_items, (cached_dir_t*)d);
+                      tor_free(fp);
+                      });
+    smartlist_free(fps);
+  }
+}

src/or/dirauth/dirvote.h

@@ -101,6 +101,8 @@ void dirvote_free_all(void);
 
 void dirvote_parse_sr_commits(networkstatus_t *ns, smartlist_t *tokens);
 void dirvote_clear_commits(networkstatus_t *ns);
+void dirvote_dirreq_get_status_vote(const char *url, smartlist_t *items,
+                                    smartlist_t *dir_items);
 
 #else /* HAVE_MODULE_DIRAUTH */
 
@@ -129,6 +131,15 @@ dirvote_clear_commits(networkstatus_t *ns)
   (void) ns;
 }
 
+static inline void
+dirvote_dirreq_get_status_vote(const char *url, smartlist_t *items,
+                               smartlist_t *dir_items)
+{
+  (void) url;
+  (void) items;
+  (void) dir_items;
+}
+
 #endif /* HAVE_MODULE_DIRAUTH */
 
 void dirvote_recalculate_timing(const or_options_t *options, time_t now);

src/or/directory.c

@@ -4438,59 +4438,15 @@ handle_get_status_vote(dir_connection_t *conn, const get_handler_args_t *args)
 {
   const char *url = args->url;
   {
-    int current;
     ssize_t body_len = 0;
     ssize_t estimated_len = 0;
+    int lifetime = 60; /* XXXX?? should actually use vote intervals. */
     /* This smartlist holds strings that we can compress on the fly. */
     smartlist_t *items = smartlist_new();
     /* This smartlist holds cached_dir_t objects that have a precompressed
      * deflated version. */
     smartlist_t *dir_items = smartlist_new();
-    int lifetime = 60; /* XXXX?? should actually use vote intervals. */
-    url += strlen("/tor/status-vote/");
-    current = !strcmpstart(url, "current/");
-    url = strchr(url, '/');
-    tor_assert(url);
-    ++url;
-    if (!strcmp(url, "consensus")) {
-      const char *item;
-      tor_assert(!current); /* we handle current consensus specially above,
-                             * since it wants to be spooled. */
-      if ((item = dirvote_get_pending_consensus(FLAV_NS)))
-        smartlist_add(items, (char*)item);
-    } else if (!current && !strcmp(url, "consensus-signatures")) {
-      /* XXXX the spec says that we should implement
-       * current/consensus-signatures too.  It doesn't seem to be needed,
-       * though. */
-      const char *item;
-      if ((item=dirvote_get_pending_detached_signatures()))
-        smartlist_add(items, (char*)item);
-    } else if (!strcmp(url, "authority")) {
-      const cached_dir_t *d;
-      int flags = DGV_BY_ID |
-        (current ? DGV_INCLUDE_PREVIOUS : DGV_INCLUDE_PENDING);
-      if ((d=dirvote_get_vote(NULL, flags)))
-        smartlist_add(dir_items, (cached_dir_t*)d);
-    } else {
-      const cached_dir_t *d;
-      smartlist_t *fps = smartlist_new();
-      int flags;
-      if (!strcmpstart(url, "d/")) {
-        url += 2;
-        flags = DGV_INCLUDE_PENDING | DGV_INCLUDE_PREVIOUS;
-      } else {
-        flags = DGV_BY_ID |
-          (current ? DGV_INCLUDE_PREVIOUS : DGV_INCLUDE_PENDING);
-      }
-      dir_split_resource_into_fingerprints(url, fps, NULL,
-                                           DSR_HEX|DSR_SORT_UNIQ);
-      SMARTLIST_FOREACH(fps, char *, fp, {
-          if ((d = dirvote_get_vote(fp, flags)))
-            smartlist_add(dir_items, (cached_dir_t*)d);
-          tor_free(fp);
-        });
-      smartlist_free(fps);
-    }
+    dirvote_dirreq_get_status_vote(url, items, dir_items);
     if (!smartlist_len(dir_items) && !smartlist_len(items)) {
       write_short_http_response(conn, 404, "Not found");
       goto vote_done;