Added custom compojure tree

1 files changed, 80 insertions, 0 deletions

diff --git a/compojure-3.2/src/compojure/http/multipart.clj b/compojure-3.2/src/compojure/http/multipart.clj
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+++ b/compojure-3.2/src/compojure/http/multipart.clj
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+;; Copyright (c) James Reeves. All rights reserved.
+;; The use and distribution terms for this software are covered by the Eclipse
+;; Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) which
+;; can be found in the file epl-v10.html at the root of this distribution. By
+;; using this software in any fashion, you are agreeing to be bound by the
+;; terms of this license. You must not remove this notice, or any other, from
+;; this software.
+
+(ns compojure.http.multipart
+  "Add multipart form handling to Compojure. Relies on the Apache Commons
+   FileUpload library."
+  (:use clojure.contrib.def
+        compojure.map-utils)
+  (:import [org.apache.commons.fileupload FileUpload RequestContext]
+           [org.apache.commons.fileupload.disk DiskFileItemFactory DiskFileItem]))
+
+(defn multipart-form?
+  "Does a request have a multipart form?"
+  [request]
+  (if-let [content-type (:content-type request)]
+    (.startsWith content-type "multipart/form-data")))
+
+(defvar- file-upload
+  (FileUpload.
+    (doto (DiskFileItemFactory.)
+      (.setSizeThreshold -1)
+      (.setFileCleaningTracker nil)))
+  "Uploader class to save multipart form values to temporary files.")
+
+(defn- request-context
+  "Create a RequestContext object from a request map."
+  [request]
+  (proxy [RequestContext] []
+    (getContentType []       (:content-type request))
+    (getContentLength []     (:content-length request))
+    (getCharacterEncoding [] (:character-encoding request))
+    (getInputStream []       (:body request))))
+
+(defn- file-map
+  "Create a file map from a DiskFileItem."
+  [#^DiskFileItem item]
+  {:disk-file-item item
+   :filename       (.getName item)
+   :size           (.getSize item)
+   :content-type   (.getContentType item)
+   :tempfile       (.getStoreLocation item)})
+
+(defn parse-multipart-params
+  "Parse a map of multipart parameters from the request."
+  [request]
+  (reduce
+    (fn [param-map, #^DiskFileItem item]
+      (assoc-vec param-map
+        (keyword (.getFieldName item))
+        (if (.isFormField item)
+          (if (zero? (.getSize item))
+            ""
+            (.getString item))
+          (file-map item))))
+    {}
+    (.parseRequest
+       file-upload
+       (request-context request))))
+
+(defn get-multipart-params
+  "Retrieve multipart params from the request."
+  [request]
+  (if (multipart-form? request)
+    (parse-multipart-params request)
+    {}))
+
+(defn with-multipart
+  "Decorate a Ring handler with multipart parameters."
+  [handler]
+  (fn [request]
+    (let [params  (get-multipart-params request)
+          request (-> request
+                    (assoc :multipart-params params)
+                    (assoc :params (merge (request :params) params)))]
+      (handler request))))