| 1 | // Copyright 2010 The Go Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | package main |
| 6 | |
| 7 | import ( |
| 8 | "encoding/json" |
| 9 | "go/format" |
| 10 | "log" |
| 11 | "net/http" |
| 12 | "text/template" |
| 13 | |
| 14 | "golang.org/x/tools/godoc" |
| 15 | "golang.org/x/tools/godoc/redirect" |
| 16 | "golang.org/x/tools/godoc/vfs" |
| 17 | |
| 18 | _ "golang.org/x/tools/playground" // register "/compile" playground redirect |
| 19 | ) |
| 20 | |
| 21 | var ( |
| 22 | pres *godoc.Presentation |
| 23 | fs = vfs.NameSpace{} |
| 24 | ) |
| 25 | |
| 26 | func registerHandlers(pres *godoc.Presentation) { |
| 27 | if pres == nil { |
| 28 | panic("nil Presentation") |
| 29 | } |
| 30 | mux := http.NewServeMux() |
| 31 | mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) { |
| 32 | if req.URL.Path == "/" { |
| 33 | http.Redirect(w, req, "/pkg/", http.StatusFound) |
| 34 | return |
| 35 | } |
| 36 | pres.ServeHTTP(w, req) |
| 37 | }) |
| 38 | mux.Handle("/pkg/C/", redirect.Handler("/cmd/cgo/")) |
| 39 | mux.HandleFunc("/fmt", fmtHandler) |
| 40 | redirect.Register(mux) |
| 41 | |
| 42 | http.Handle("/", mux) |
| 43 | } |
| 44 | |
| 45 | func readTemplate(name string) *template.Template { |
| 46 | if pres == nil { |
| 47 | panic("no global Presentation set yet") |
| 48 | } |
| 49 | path := "lib/godoc/" + name |
| 50 | |
| 51 | // use underlying file system fs to read the template file |
| 52 | // (cannot use template ParseFile functions directly) |
| 53 | data, err := vfs.ReadFile(fs, path) |
| 54 | if err != nil { |
| 55 | log.Fatal("readTemplate: ", err) |
| 56 | } |
| 57 | // be explicit with errors (for app engine use) |
| 58 | t, err := template.New(name).Funcs(pres.FuncMap()).Parse(string(data)) |
| 59 | if err != nil { |
| 60 | log.Fatal("readTemplate: ", err) |
| 61 | } |
| 62 | return t |
| 63 | } |
| 64 | |
| 65 | func readTemplates(p *godoc.Presentation) { |
| 66 | p.CallGraphHTML = readTemplate("callgraph.html") |
| 67 | p.DirlistHTML = readTemplate("dirlist.html") |
| 68 | p.ErrorHTML = readTemplate("error.html") |
| 69 | p.ExampleHTML = readTemplate("example.html") |
| 70 | p.GodocHTML = readTemplate("godoc.html") |
| 71 | p.ImplementsHTML = readTemplate("implements.html") |
| 72 | p.MethodSetHTML = readTemplate("methodset.html") |
| 73 | p.PackageHTML = readTemplate("package.html") |
| 74 | p.PackageRootHTML = readTemplate("packageroot.html") |
| 75 | p.SearchHTML = readTemplate("search.html") |
| 76 | p.SearchDocHTML = readTemplate("searchdoc.html") |
| 77 | p.SearchCodeHTML = readTemplate("searchcode.html") |
| 78 | p.SearchTxtHTML = readTemplate("searchtxt.html") |
| 79 | } |
| 80 | |
| 81 | type fmtResponse struct { |
| 82 | Body string |
| 83 | Error string |
| 84 | } |
| 85 | |
| 86 | // fmtHandler takes a Go program in its "body" form value, formats it with |
| 87 | // standard gofmt formatting, and writes a fmtResponse as a JSON object. |
| 88 | func fmtHandler(w http.ResponseWriter, r *http.Request) { |
| 89 | resp := new(fmtResponse) |
| 90 | body, err := format.Source([]byte(r.FormValue("body"))) |
| 91 | if err != nil { |
| 92 | resp.Error = err.Error() |
| 93 | } else { |
| 94 | resp.Body = string(body) |
| 95 | } |
| 96 | w.Header().Set("Content-type", "application/json; charset=utf-8") |
| 97 | json.NewEncoder(w).Encode(resp) |
| 98 | } |
| 99 |
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