240 lines
7.1 KiB
Go
240 lines
7.1 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package context
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import (
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"fmt"
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"html"
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"html/template"
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"io"
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"net/http"
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"path"
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"strings"
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"time"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/auth"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"github.com/Unknwon/com"
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"github.com/go-macaron/cache"
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"github.com/go-macaron/csrf"
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"github.com/go-macaron/i18n"
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"github.com/go-macaron/session"
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macaron "gopkg.in/macaron.v1"
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)
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// Context represents context of a request.
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type Context struct {
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*macaron.Context
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Cache cache.Cache
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csrf csrf.CSRF
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Flash *session.Flash
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Session session.Store
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Link string // current request URL
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EscapedLink string
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User *models.User
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IsSigned bool
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IsBasicAuth bool
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Repo *Repository
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Org *Organization
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}
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// HasAPIError returns true if error occurs in form validation.
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func (ctx *Context) HasAPIError() bool {
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hasErr, ok := ctx.Data["HasError"]
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if !ok {
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return false
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}
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return hasErr.(bool)
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}
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// GetErrMsg returns error message
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func (ctx *Context) GetErrMsg() string {
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return ctx.Data["ErrorMsg"].(string)
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}
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// HasError returns true if error occurs in form validation.
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func (ctx *Context) HasError() bool {
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hasErr, ok := ctx.Data["HasError"]
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if !ok {
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return false
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}
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ctx.Flash.ErrorMsg = ctx.Data["ErrorMsg"].(string)
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ctx.Data["Flash"] = ctx.Flash
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return hasErr.(bool)
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}
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// HasValue returns true if value of given name exists.
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func (ctx *Context) HasValue(name string) bool {
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_, ok := ctx.Data[name]
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return ok
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}
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// HTML calls Context.HTML and converts template name to string.
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func (ctx *Context) HTML(status int, name base.TplName) {
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log.Debug("Template: %s", name)
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ctx.Context.HTML(status, string(name))
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}
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// RenderWithErr used for page has form validation but need to prompt error to users.
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func (ctx *Context) RenderWithErr(msg string, tpl base.TplName, form interface{}) {
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if form != nil {
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auth.AssignForm(form, ctx.Data)
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}
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ctx.Flash.ErrorMsg = msg
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ctx.Data["Flash"] = ctx.Flash
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ctx.HTML(200, tpl)
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}
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// Handle handles and logs error by given status.
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func (ctx *Context) Handle(status int, title string, err error) {
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if err != nil {
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log.Error(4, "%s: %v", title, err)
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if macaron.Env != macaron.PROD {
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ctx.Data["ErrorMsg"] = err
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}
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}
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switch status {
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case 404:
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ctx.Data["Title"] = "Page Not Found"
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case 500:
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ctx.Data["Title"] = "Internal Server Error"
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}
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ctx.HTML(status, base.TplName(fmt.Sprintf("status/%d", status)))
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}
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// NotFoundOrServerError use error check function to determine if the error
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// is about not found. It responses with 404 status code for not found error,
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// or error context description for logging purpose of 500 server error.
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func (ctx *Context) NotFoundOrServerError(title string, errck func(error) bool, err error) {
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if errck(err) {
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ctx.Handle(404, title, err)
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return
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}
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ctx.Handle(500, title, err)
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}
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// HandleText handles HTTP status code
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func (ctx *Context) HandleText(status int, title string) {
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if (status/100 == 4) || (status/100 == 5) {
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log.Error(4, "%s", title)
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}
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ctx.PlainText(status, []byte(title))
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}
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// ServeContent serves content to http request
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func (ctx *Context) ServeContent(name string, r io.ReadSeeker, params ...interface{}) {
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modtime := time.Now()
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for _, p := range params {
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switch v := p.(type) {
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case time.Time:
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modtime = v
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}
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}
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ctx.Resp.Header().Set("Content-Description", "File Transfer")
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ctx.Resp.Header().Set("Content-Type", "application/octet-stream")
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ctx.Resp.Header().Set("Content-Disposition", "attachment; filename="+name)
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ctx.Resp.Header().Set("Content-Transfer-Encoding", "binary")
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ctx.Resp.Header().Set("Expires", "0")
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ctx.Resp.Header().Set("Cache-Control", "must-revalidate")
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ctx.Resp.Header().Set("Pragma", "public")
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http.ServeContent(ctx.Resp, ctx.Req.Request, name, modtime, r)
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}
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// Contexter initializes a classic context for a request.
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func Contexter() macaron.Handler {
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return func(c *macaron.Context, l i18n.Locale, cache cache.Cache, sess session.Store, f *session.Flash, x csrf.CSRF) {
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ctx := &Context{
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Context: c,
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Cache: cache,
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csrf: x,
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Flash: f,
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Session: sess,
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Link: setting.AppSubURL + strings.TrimSuffix(c.Req.URL.EscapedPath(), "/"),
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Repo: &Repository{
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PullRequest: &PullRequest{},
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},
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Org: &Organization{},
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}
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c.Data["Link"] = ctx.Link
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ctx.Data["PageStartTime"] = time.Now()
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// Quick responses appropriate go-get meta with status 200
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// regardless of if user have access to the repository,
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// or the repository does not exist at all.
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// This is particular a workaround for "go get" command which does not respect
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// .netrc file.
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if ctx.Query("go-get") == "1" {
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ownerName := c.Params(":username")
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repoName := c.Params(":reponame")
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branchName := "master"
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repo, err := models.GetRepositoryByOwnerAndName(ownerName, repoName)
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if err == nil && len(repo.DefaultBranch) > 0 {
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branchName = repo.DefaultBranch
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}
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prefix := setting.AppURL + path.Join(ownerName, repoName, "src", "branch", branchName)
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c.PlainText(http.StatusOK, []byte(com.Expand(`
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<html>
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<head>
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<meta name="go-import" content="{GoGetImport} git {CloneLink}">
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<meta name="go-source" content="{GoGetImport} _ {GoDocDirectory} {GoDocFile}">
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</head>
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<body>
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go get {GoGetImport}
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</body>
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</html>
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`, map[string]string{
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"GoGetImport": ComposeGoGetImport(ownerName, strings.TrimSuffix(repoName, ".git")),
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"CloneLink": models.ComposeHTTPSCloneURL(ownerName, repoName),
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"GoDocDirectory": prefix + "{/dir}",
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"GoDocFile": prefix + "{/dir}/{file}#L{line}",
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})))
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return
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}
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// Get user from session if logged in.
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ctx.User, ctx.IsBasicAuth = auth.SignedInUser(ctx.Context, ctx.Session)
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if ctx.User != nil {
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ctx.IsSigned = true
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ctx.Data["IsSigned"] = ctx.IsSigned
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ctx.Data["SignedUser"] = ctx.User
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ctx.Data["SignedUserID"] = ctx.User.ID
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ctx.Data["SignedUserName"] = ctx.User.Name
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ctx.Data["IsAdmin"] = ctx.User.IsAdmin
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} else {
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ctx.Data["SignedUserID"] = int64(0)
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ctx.Data["SignedUserName"] = ""
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}
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// If request sends files, parse them here otherwise the Query() can't be parsed and the CsrfToken will be invalid.
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if ctx.Req.Method == "POST" && strings.Contains(ctx.Req.Header.Get("Content-Type"), "multipart/form-data") {
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if err := ctx.Req.ParseMultipartForm(setting.AttachmentMaxSize << 20); err != nil && !strings.Contains(err.Error(), "EOF") { // 32MB max size
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ctx.Handle(500, "ParseMultipartForm", err)
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return
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}
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}
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ctx.Resp.Header().Set(`X-Frame-Options`, `SAMEORIGIN`)
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ctx.Data["CsrfToken"] = html.EscapeString(x.GetToken())
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ctx.Data["CsrfTokenHtml"] = template.HTML(`<input type="hidden" name="_csrf" value="` + ctx.Data["CsrfToken"].(string) + `">`)
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log.Debug("Session ID: %s", sess.ID())
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log.Debug("CSRF Token: %v", ctx.Data["CsrfToken"])
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ctx.Data["ShowRegistrationButton"] = setting.Service.ShowRegistrationButton
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ctx.Data["ShowFooterBranding"] = setting.ShowFooterBranding
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ctx.Data["ShowFooterVersion"] = setting.ShowFooterVersion
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ctx.Data["EnableOpenIDSignIn"] = setting.Service.EnableOpenIDSignIn
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c.Map(ctx)
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}
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}
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