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