forgejo/routers/repo/wiki.go
zeripath 722a7c902d
Add Close() method to gogitRepository (#8901)
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.

This PR adds this Close function and adds the Close functions as necessary.

In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.

Fixes #7947
2019-11-13 07:01:19 +00:00

653 lines
16 KiB
Go

// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repo
import (
"fmt"
"io/ioutil"
"net/url"
"path/filepath"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
const (
tplWikiStart base.TplName = "repo/wiki/start"
tplWikiView base.TplName = "repo/wiki/view"
tplWikiRevision base.TplName = "repo/wiki/revision"
tplWikiNew base.TplName = "repo/wiki/new"
tplWikiPages base.TplName = "repo/wiki/pages"
)
// MustEnableWiki check if wiki is enabled, if external then redirect
func MustEnableWiki(ctx *context.Context) {
if !ctx.Repo.CanRead(models.UnitTypeWiki) &&
!ctx.Repo.CanRead(models.UnitTypeExternalWiki) {
if log.IsTrace() {
log.Trace("Permission Denied: User %-v cannot read %-v or %-v of repo %-v\n"+
"User in repo has Permissions: %-+v",
ctx.User,
models.UnitTypeWiki,
models.UnitTypeExternalWiki,
ctx.Repo.Repository,
ctx.Repo.Permission)
}
ctx.NotFound("MustEnableWiki", nil)
return
}
unit, err := ctx.Repo.Repository.GetUnit(models.UnitTypeExternalWiki)
if err == nil {
ctx.Redirect(unit.ExternalWikiConfig().ExternalWikiURL)
return
}
}
// PageMeta wiki page meta information
type PageMeta struct {
Name string
SubURL string
UpdatedUnix timeutil.TimeStamp
}
// findEntryForFile finds the tree entry for a target filepath.
func findEntryForFile(commit *git.Commit, target string) (*git.TreeEntry, error) {
entries, err := commit.ListEntries()
if err != nil {
return nil, err
}
// The longest name should be checked first
for _, entry := range entries {
if entry.IsRegular() && entry.Name() == target {
return entry, nil
}
}
// Then the unescaped, shortest alternative
var unescapedTarget string
if unescapedTarget, err = url.QueryUnescape(target); err != nil {
return nil, err
}
for _, entry := range entries {
if entry.IsRegular() && entry.Name() == unescapedTarget {
return entry, nil
}
}
return nil, nil
}
func findWikiRepoCommit(ctx *context.Context) (*git.Repository, *git.Commit, error) {
wikiRepo, err := git.OpenRepository(ctx.Repo.Repository.WikiPath())
if err != nil {
ctx.ServerError("OpenRepository", err)
return nil, nil, err
}
commit, err := wikiRepo.GetBranchCommit("master")
if err != nil {
return wikiRepo, nil, err
}
return wikiRepo, commit, nil
}
// wikiContentsByEntry returns the contents of the wiki page referenced by the
// given tree entry. Writes to ctx if an error occurs.
func wikiContentsByEntry(ctx *context.Context, entry *git.TreeEntry) []byte {
reader, err := entry.Blob().DataAsync()
if err != nil {
ctx.ServerError("Blob.Data", err)
return nil
}
defer reader.Close()
content, err := ioutil.ReadAll(reader)
if err != nil {
ctx.ServerError("ReadAll", err)
return nil
}
return content
}
// wikiContentsByName returns the contents of a wiki page, along with a boolean
// indicating whether the page exists. Writes to ctx if an error occurs.
func wikiContentsByName(ctx *context.Context, commit *git.Commit, wikiName string) ([]byte, *git.TreeEntry, string, bool) {
var entry *git.TreeEntry
var err error
pageFilename := models.WikiNameToFilename(wikiName)
if entry, err = findEntryForFile(commit, pageFilename); err != nil {
ctx.ServerError("findEntryForFile", err)
return nil, nil, "", false
} else if entry == nil {
return nil, nil, "", true
}
return wikiContentsByEntry(ctx, entry), entry, pageFilename, false
}
func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
wikiRepo, commit, err := findWikiRepoCommit(ctx)
if err != nil {
if !git.IsErrNotExist(err) {
ctx.ServerError("GetBranchCommit", err)
}
return nil, nil
}
// Get page list.
entries, err := commit.ListEntries()
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
ctx.ServerError("ListEntries", err)
return nil, nil
}
pages := make([]PageMeta, 0, len(entries))
for _, entry := range entries {
if !entry.IsRegular() {
continue
}
wikiName, err := models.WikiFilenameToName(entry.Name())
if err != nil {
if models.IsErrWikiInvalidFileName(err) {
continue
}
if wikiRepo != nil {
wikiRepo.Close()
}
ctx.ServerError("WikiFilenameToName", err)
return nil, nil
} else if wikiName == "_Sidebar" || wikiName == "_Footer" {
continue
}
pages = append(pages, PageMeta{
Name: wikiName,
SubURL: models.WikiNameToSubURL(wikiName),
})
}
ctx.Data["Pages"] = pages
// get requested pagename
pageName := models.NormalizeWikiName(ctx.Params(":page"))
if len(pageName) == 0 {
pageName = "Home"
}
ctx.Data["PageURL"] = models.WikiNameToSubURL(pageName)
ctx.Data["old_title"] = pageName
ctx.Data["Title"] = pageName
ctx.Data["title"] = pageName
ctx.Data["RequireHighlightJS"] = true
//lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, pageFilename, noEntry := wikiContentsByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/_pages")
}
if entry == nil || ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return nil, nil
}
sidebarContent, _, _, _ := wikiContentsByName(ctx, commit, "_Sidebar")
if ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return nil, nil
}
footerContent, _, _, _ := wikiContentsByName(ctx, commit, "_Footer")
if ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return nil, nil
}
metas := ctx.Repo.Repository.ComposeMetas()
ctx.Data["content"] = markdown.RenderWiki(data, ctx.Repo.RepoLink, metas)
ctx.Data["sidebarPresent"] = sidebarContent != nil
ctx.Data["sidebarContent"] = markdown.RenderWiki(sidebarContent, ctx.Repo.RepoLink, metas)
ctx.Data["footerPresent"] = footerContent != nil
ctx.Data["footerContent"] = markdown.RenderWiki(footerContent, ctx.Repo.RepoLink, metas)
// get commit count - wiki revisions
commitsCount, _ := wikiRepo.FileCommitsCount("master", pageFilename)
ctx.Data["CommitCount"] = commitsCount
return wikiRepo, entry
}
func renderRevisionPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
wikiRepo, commit, err := findWikiRepoCommit(ctx)
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
if !git.IsErrNotExist(err) {
ctx.ServerError("GetBranchCommit", err)
}
return nil, nil
}
// get requested pagename
pageName := models.NormalizeWikiName(ctx.Params(":page"))
if len(pageName) == 0 {
pageName = "Home"
}
ctx.Data["PageURL"] = models.WikiNameToSubURL(pageName)
ctx.Data["old_title"] = pageName
ctx.Data["Title"] = pageName
ctx.Data["title"] = pageName
ctx.Data["RequireHighlightJS"] = true
//lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, pageFilename, noEntry := wikiContentsByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/_pages")
}
if entry == nil || ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return nil, nil
}
ctx.Data["content"] = string(data)
ctx.Data["sidebarPresent"] = false
ctx.Data["sidebarContent"] = ""
ctx.Data["footerPresent"] = false
ctx.Data["footerContent"] = ""
// get commit count - wiki revisions
commitsCount, _ := wikiRepo.FileCommitsCount("master", pageFilename)
ctx.Data["CommitCount"] = commitsCount
// get page
page := ctx.QueryInt("page")
if page <= 1 {
page = 1
}
// get Commit Count
commitsHistory, err := wikiRepo.CommitsByFileAndRangeNoFollow("master", pageFilename, page)
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
ctx.ServerError("CommitsByFileAndRangeNoFollow", err)
return nil, nil
}
commitsHistory = models.ValidateCommitsWithEmails(commitsHistory)
commitsHistory = models.ParseCommitsWithSignature(commitsHistory)
ctx.Data["Commits"] = commitsHistory
pager := context.NewPagination(int(commitsCount), git.CommitsRangeSize, page, 5)
pager.SetDefaultParams(ctx)
ctx.Data["Page"] = pager
return wikiRepo, entry
}
func renderEditPage(ctx *context.Context) {
wikiRepo, commit, err := findWikiRepoCommit(ctx)
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
if !git.IsErrNotExist(err) {
ctx.ServerError("GetBranchCommit", err)
}
return
}
defer func() {
if wikiRepo != nil {
wikiRepo.Close()
}
}()
// get requested pagename
pageName := models.NormalizeWikiName(ctx.Params(":page"))
if len(pageName) == 0 {
pageName = "Home"
}
ctx.Data["PageURL"] = models.WikiNameToSubURL(pageName)
ctx.Data["old_title"] = pageName
ctx.Data["Title"] = pageName
ctx.Data["title"] = pageName
ctx.Data["RequireHighlightJS"] = true
//lookup filename in wiki - get filecontent, gitTree entry , real filename
data, entry, _, noEntry := wikiContentsByName(ctx, commit, pageName)
if noEntry {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/_pages")
}
if entry == nil || ctx.Written() {
return
}
ctx.Data["content"] = string(data)
ctx.Data["sidebarPresent"] = false
ctx.Data["sidebarContent"] = ""
ctx.Data["footerPresent"] = false
ctx.Data["footerContent"] = ""
}
// Wiki renders single wiki page
func Wiki(ctx *context.Context) {
ctx.Data["PageIsWiki"] = true
ctx.Data["CanWriteWiki"] = ctx.Repo.CanWrite(models.UnitTypeWiki) && !ctx.Repo.Repository.IsArchived
if !ctx.Repo.Repository.HasWiki() {
ctx.Data["Title"] = ctx.Tr("repo.wiki")
ctx.HTML(200, tplWikiStart)
return
}
wikiRepo, entry := renderViewPage(ctx)
if ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return
}
defer func() {
if wikiRepo != nil {
wikiRepo.Close()
}
}()
if entry == nil {
ctx.Data["Title"] = ctx.Tr("repo.wiki")
ctx.HTML(200, tplWikiStart)
return
}
wikiPath := entry.Name()
if markup.Type(wikiPath) != markdown.MarkupName {
ext := strings.ToUpper(filepath.Ext(wikiPath))
ctx.Data["FormatWarning"] = fmt.Sprintf("%s rendering is not supported at the moment. Rendered as Markdown.", ext)
}
// Get last change information.
lastCommit, err := wikiRepo.GetCommitByPath(wikiPath)
if err != nil {
ctx.ServerError("GetCommitByPath", err)
return
}
ctx.Data["Author"] = lastCommit.Author
ctx.HTML(200, tplWikiView)
}
// WikiRevision renders file revision list of wiki page
func WikiRevision(ctx *context.Context) {
ctx.Data["PageIsWiki"] = true
ctx.Data["CanWriteWiki"] = ctx.Repo.CanWrite(models.UnitTypeWiki) && !ctx.Repo.Repository.IsArchived
if !ctx.Repo.Repository.HasWiki() {
ctx.Data["Title"] = ctx.Tr("repo.wiki")
ctx.HTML(200, tplWikiStart)
return
}
wikiRepo, entry := renderRevisionPage(ctx)
if ctx.Written() {
if wikiRepo != nil {
wikiRepo.Close()
}
return
}
defer func() {
if wikiRepo != nil {
wikiRepo.Close()
}
}()
if entry == nil {
ctx.Data["Title"] = ctx.Tr("repo.wiki")
ctx.HTML(200, tplWikiStart)
return
}
// Get last change information.
wikiPath := entry.Name()
lastCommit, err := wikiRepo.GetCommitByPath(wikiPath)
if err != nil {
ctx.ServerError("GetCommitByPath", err)
return
}
ctx.Data["Author"] = lastCommit.Author
ctx.HTML(200, tplWikiRevision)
}
// WikiPages render wiki pages list page
func WikiPages(ctx *context.Context) {
if !ctx.Repo.Repository.HasWiki() {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki")
return
}
ctx.Data["Title"] = ctx.Tr("repo.wiki.pages")
ctx.Data["PageIsWiki"] = true
ctx.Data["CanWriteWiki"] = ctx.Repo.CanWrite(models.UnitTypeWiki) && !ctx.Repo.Repository.IsArchived
wikiRepo, commit, err := findWikiRepoCommit(ctx)
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
return
}
entries, err := commit.ListEntries()
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
ctx.ServerError("ListEntries", err)
return
}
pages := make([]PageMeta, 0, len(entries))
for _, entry := range entries {
if !entry.IsRegular() {
continue
}
c, err := wikiRepo.GetCommitByPath(entry.Name())
if err != nil {
if wikiRepo != nil {
wikiRepo.Close()
}
ctx.ServerError("GetCommit", err)
return
}
wikiName, err := models.WikiFilenameToName(entry.Name())
if err != nil {
if models.IsErrWikiInvalidFileName(err) {
continue
}
if wikiRepo != nil {
wikiRepo.Close()
}
ctx.ServerError("WikiFilenameToName", err)
return
}
pages = append(pages, PageMeta{
Name: wikiName,
SubURL: models.WikiNameToSubURL(wikiName),
UpdatedUnix: timeutil.TimeStamp(c.Author.When.Unix()),
})
}
ctx.Data["Pages"] = pages
defer func() {
if wikiRepo != nil {
wikiRepo.Close()
}
}()
ctx.HTML(200, tplWikiPages)
}
// WikiRaw outputs raw blob requested by user (image for example)
func WikiRaw(ctx *context.Context) {
wikiRepo, commit, err := findWikiRepoCommit(ctx)
if err != nil {
if wikiRepo != nil {
return
}
}
providedPath := ctx.Params("*")
var entry *git.TreeEntry
if commit != nil {
// Try to find a file with that name
entry, err = findEntryForFile(commit, providedPath)
if err != nil {
ctx.ServerError("findFile", err)
return
}
if entry == nil {
// Try to find a wiki page with that name
if strings.HasSuffix(providedPath, ".md") {
providedPath = providedPath[:len(providedPath)-3]
}
wikiPath := models.WikiNameToFilename(providedPath)
entry, err = findEntryForFile(commit, wikiPath)
if err != nil {
ctx.ServerError("findFile", err)
return
}
}
}
if entry != nil {
if err = ServeBlob(ctx, entry.Blob()); err != nil {
ctx.ServerError("ServeBlob", err)
}
return
}
ctx.NotFound("findEntryForFile", nil)
}
// NewWiki render wiki create page
func NewWiki(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("repo.wiki.new_page")
ctx.Data["PageIsWiki"] = true
ctx.Data["RequireSimpleMDE"] = true
if !ctx.Repo.Repository.HasWiki() {
ctx.Data["title"] = "Home"
}
ctx.HTML(200, tplWikiNew)
}
// NewWikiPost response for wiki create request
func NewWikiPost(ctx *context.Context, form auth.NewWikiForm) {
ctx.Data["Title"] = ctx.Tr("repo.wiki.new_page")
ctx.Data["PageIsWiki"] = true
ctx.Data["RequireSimpleMDE"] = true
if ctx.HasError() {
ctx.HTML(200, tplWikiNew)
return
}
if util.IsEmptyString(form.Title) {
ctx.RenderWithErr(ctx.Tr("repo.issues.new.title_empty"), tplWikiNew, form)
return
}
wikiName := models.NormalizeWikiName(form.Title)
if err := ctx.Repo.Repository.AddWikiPage(ctx.User, wikiName, form.Content, form.Message); err != nil {
if models.IsErrWikiReservedName(err) {
ctx.Data["Err_Title"] = true
ctx.RenderWithErr(ctx.Tr("repo.wiki.reserved_page", wikiName), tplWikiNew, &form)
} else if models.IsErrWikiAlreadyExist(err) {
ctx.Data["Err_Title"] = true
ctx.RenderWithErr(ctx.Tr("repo.wiki.page_already_exists"), tplWikiNew, &form)
} else {
ctx.ServerError("AddWikiPage", err)
}
return
}
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/" + models.WikiNameToSubURL(wikiName))
}
// EditWiki render wiki modify page
func EditWiki(ctx *context.Context) {
ctx.Data["PageIsWiki"] = true
ctx.Data["PageIsWikiEdit"] = true
ctx.Data["RequireSimpleMDE"] = true
if !ctx.Repo.Repository.HasWiki() {
ctx.Redirect(ctx.Repo.RepoLink + "/wiki")
return
}
renderEditPage(ctx)
if ctx.Written() {
return
}
ctx.HTML(200, tplWikiNew)
}
// EditWikiPost response for wiki modify request
func EditWikiPost(ctx *context.Context, form auth.NewWikiForm) {
ctx.Data["Title"] = ctx.Tr("repo.wiki.new_page")
ctx.Data["PageIsWiki"] = true
ctx.Data["RequireSimpleMDE"] = true
if ctx.HasError() {
ctx.HTML(200, tplWikiNew)
return
}
oldWikiName := models.NormalizeWikiName(ctx.Params(":page"))
newWikiName := models.NormalizeWikiName(form.Title)
if err := ctx.Repo.Repository.EditWikiPage(ctx.User, oldWikiName, newWikiName, form.Content, form.Message); err != nil {
ctx.ServerError("EditWikiPage", err)
return
}
ctx.Redirect(ctx.Repo.RepoLink + "/wiki/" + models.WikiNameToSubURL(newWikiName))
}
// DeleteWikiPagePost delete wiki page
func DeleteWikiPagePost(ctx *context.Context) {
wikiName := models.NormalizeWikiName(ctx.Params(":page"))
if len(wikiName) == 0 {
wikiName = "Home"
}
if err := ctx.Repo.Repository.DeleteWikiPage(ctx.User, wikiName); err != nil {
ctx.ServerError("DeleteWikiPage", err)
return
}
ctx.JSON(200, map[string]interface{}{
"redirect": ctx.Repo.RepoLink + "/wiki/",
})
}