internal: move {config,db,http} into internal

internal/http/docs.go

@@ -0,0 +1,74 @@
+// Copyright 2014 The Cayley Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package http
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"os"
+
+	"github.com/julienschmidt/httprouter"
+	"github.com/russross/blackfriday"
+)
+
+type DocRequestHandler struct {
+	assets string
+}
+
+func MarkdownWithCSS(input []byte, title string) []byte {
+	// set up the HTML renderer
+	htmlFlags := 0
+	htmlFlags |= blackfriday.HTML_USE_XHTML
+	htmlFlags |= blackfriday.HTML_USE_SMARTYPANTS
+	htmlFlags |= blackfriday.HTML_SMARTYPANTS_FRACTIONS
+	htmlFlags |= blackfriday.HTML_SMARTYPANTS_LATEX_DASHES
+	htmlFlags |= blackfriday.HTML_COMPLETE_PAGE
+	renderer := blackfriday.HtmlRenderer(htmlFlags, title, markdownCSS)
+
+	// set up the parser
+	extensions := 0
+	//extensions |= blackfriday.EXTENSION_NO_INTRA_EMPHASIS
+	extensions |= blackfriday.EXTENSION_TABLES
+	extensions |= blackfriday.EXTENSION_FENCED_CODE
+	extensions |= blackfriday.EXTENSION_AUTOLINK
+	extensions |= blackfriday.EXTENSION_STRIKETHROUGH
+	//extensions |= blackfriday.EXTENSION_SPACE_HEADERS
+	extensions |= blackfriday.EXTENSION_HEADER_IDS
+	extensions |= blackfriday.EXTENSION_LAX_HTML_BLOCKS
+
+	return blackfriday.Markdown(input, renderer, extensions)
+}
+
+func (h *DocRequestHandler) ServeHTTP(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
+	docpage := params.ByName("docpage")
+	if docpage == "" {
+		docpage = "Index"
+	}
+	file, err := os.Open(fmt.Sprintf("%s/docs/%s.md", h.assets, docpage))
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusNotFound)
+		return
+	}
+	data, err := ioutil.ReadAll(file)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusNoContent)
+		return
+	}
+	output := MarkdownWithCSS(data, fmt.Sprintf("Cayley Docs - %s", docpage))
+	fmt.Fprint(w, string(output))
+}
+
+var markdownCSS = "/static/css/docs.css"