Added files API, fixed file.List returning all files if both author and public is unset

model/file/file.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/rand"
 	"encoding/binary"
+	"errors"
 	"io"
 	"strconv"
 	"time"
@@ -125,19 +126,27 @@ func FindID(id string) (File, error) {
 	return file, nil
 }
 
-// ListFiles lists files according to the standard lookup. By default it's just the author's own files,
+// List lists files according to the standard lookup. By default it's just the author's own files,
 // but if `public` is true it will alos include files made public by other authors. If `mimeTypes` contains
-// any, it will limit the results to that.
-func ListFiles(author string, public bool, mimeTypes []string) ([]File, error) {
+// any, it will limit the results to that. If `author` is empty, it will only list public files
+func List(author string, public bool, mimeTypes []string) ([]File, error) {
 	query := bson.M{}
 
-	if public {
-		query["$or"] = []bson.M{
-			bson.M{"author": author},
-			bson.M{"public": true},
+	if author != "" {
+		if public {
+			query["$or"] = []bson.M{
+				bson.M{"author": author},
+				bson.M{"public": true},
+			}
+		} else {
+			query["author"] = author
 		}
 	} else {
-		query["author"] = author
+		if !public {
+			return nil, errors.New("No author specified, and public is unset")
+		}
+
+		query["public"] = true
 	}
 
 	if len(mimeTypes) > 0 {
@@ -183,5 +192,8 @@ func init() {
 		fileCollection = db.C("file.headers")
 
 		fileCollection.EnsureIndexKey("author")
+		fileCollection.EnsureIndexKey("public")
+		fileCollection.EnsureIndexKey("author", "public")
+		fileCollection.EnsureIndexKey("kind")
 	})
 }