| // Copyright 2013 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| //go:build go1.16 |
| // +build go1.16 |
| |
| package godoc |
| |
| import ( |
| "net/http" |
| "sync" |
| "text/template" |
| ) |
| |
| // Presentation generates output from a corpus. |
| type Presentation struct { |
| Corpus *Corpus |
| |
| mux *http.ServeMux |
| fileServer http.Handler |
| cmdHandler handlerServer |
| pkgHandler handlerServer |
| |
| DirlistHTML, |
| ErrorHTML, |
| ExampleHTML, |
| GodocHTML, |
| PackageHTML, |
| PackageRootHTML *template.Template |
| |
| // GoogleCN reports whether this request should be marked GoogleCN. |
| // If the function is nil, no requests are marked GoogleCN. |
| GoogleCN func(*http.Request) bool |
| |
| // GoogleAnalytics optionally adds Google Analytics via the provided |
| // tracking ID to each page. |
| GoogleAnalytics string |
| |
| initFuncMapOnce sync.Once |
| funcMap template.FuncMap |
| templateFuncs template.FuncMap |
| } |
| |
| // NewPresentation returns a new Presentation from a corpus. |
| func NewPresentation(c *Corpus) *Presentation { |
| if c == nil { |
| panic("nil Corpus") |
| } |
| p := &Presentation{ |
| Corpus: c, |
| mux: http.NewServeMux(), |
| fileServer: http.FileServer(http.FS(c.fs)), |
| } |
| p.cmdHandler = handlerServer{ |
| p: p, |
| c: c, |
| pattern: "/cmd/", |
| fsRoot: "/src", |
| } |
| p.pkgHandler = handlerServer{ |
| p: p, |
| c: c, |
| pattern: "/pkg/", |
| stripPrefix: "pkg/", |
| fsRoot: "/src", |
| exclude: []string{"/src/cmd"}, |
| } |
| p.cmdHandler.registerWithMux(p.mux) |
| p.pkgHandler.registerWithMux(p.mux) |
| p.mux.HandleFunc("/", p.ServeFile) |
| return p |
| } |
| |
| func (p *Presentation) FileServer() http.Handler { |
| return p.fileServer |
| } |
| |
| func (p *Presentation) ServeHTTP(w http.ResponseWriter, r *http.Request) { |
| p.mux.ServeHTTP(w, r) |
| } |
| |
| func (p *Presentation) PkgFSRoot() string { |
| return p.pkgHandler.fsRoot |
| } |
| |
| func (p *Presentation) CmdFSRoot() string { |
| return p.cmdHandler.fsRoot |
| } |
| |
| // TODO(bradfitz): move this to be a method on Corpus. Just moving code around for now, |
| // but this doesn't feel right. |
| func (p *Presentation) GetPkgPageInfo(abspath, relpath string, mode PageInfoMode) *PageInfo { |
| return p.pkgHandler.GetPageInfo(abspath, relpath, mode, "", "") |
| } |
| |
| // TODO(bradfitz): move this to be a method on Corpus. Just moving code around for now, |
| // but this doesn't feel right. |
| func (p *Presentation) GetCmdPageInfo(abspath, relpath string, mode PageInfoMode) *PageInfo { |
| return p.cmdHandler.GetPageInfo(abspath, relpath, mode, "", "") |
| } |
| |
| func (p *Presentation) googleCN(r *http.Request) bool { |
| return p.GoogleCN != nil && p.GoogleCN(r) |
| } |