first working version

pkg/db/page.go

@@ -5,20 +5,38 @@ import (
 	"git.giftfish.de/ston1th/gowiki/pkg/render"
 	"git.giftfish.de/ston1th/gowiki/pkg/store"
 	"git.giftfish.de/ston1th/gowiki/pkg/util"
+	"sort"
 )
 
 var (
 	errPageNotFound      = store.ErrKeyNotFound
+	errPermissionDenied  = dbErr("permission denied")
 	errInvalidPermission = dbErr("invalid permission")
 	errPrivateWikiPage   = dbErr("private wiki pages are not allowed")
+	errDeleteIndexPage   = dbErr("index page can not be deleted")
 )
 
+func (db *DB) GetAllPages(username string) (pages core.Pages) {
+	db.pages.ForEach(func(title string, _ []byte) error {
+		if title == core.IndexURI {
+			return nil
+		}
+		p, err := db.GetPage(title, username)
+		if err == nil {
+			pages = append(pages, *p)
+		}
+		return nil
+	})
+	sort.Sort(pages)
+	return
+}
+
 func (db *DB) GetPage(title, username string) (p *core.Page, err error) {
 	p = db.cache.Get(title)
 	if p == nil {
-		p = new(core.Page)
-		err = db.pages.Get(title, p)
+		p, err = db.getPage(title, username)
 		db.cache.Add(title, p)
+		return
 	}
 	if !core.ReadPerm(username, p) {
 		err = errPageNotFound
@@ -26,7 +44,7 @@ func (db *DB) GetPage(title, username string) (p *core.Page, err error) {
 	return
 }
 
-func (db *DB) pageExists(title, username string) (p *core.Page, err error) {
+func (db *DB) getPage(title, username string) (p *core.Page, err error) {
 	p = new(core.Page)
 	err = db.pages.Get(title, p)
 	if err != nil {
@@ -43,78 +61,98 @@ func (db *DB) CreatePage(title, section, markdown, username string, p core.Permi
 		err = errInvalidPermission
 		return
 	}
-	if section == wikiSection && p == core.Private {
+	if section == core.WikiSection && p == core.Private {
 		err = errPrivateWikiPage
 		return
 	}
 	st := util.StoreTitle(section, title)
-	if _, err = db.pageExists(st, username); err != nil {
+	if _, err = db.getPage(st, username); err != nil && err != store.ErrKeyNotFound {
 		return
 	}
 
 	page = &core.Page{
-		Title:    title,
-		Markdown: markdown,
-		Created:  created(username),
-		Owner:    username,
-		Perm:     p,
+		Title:      title,
+		StoreTitle: st,
+		Markdown:   markdown,
+		Created:    created(username),
+		Owner:      username,
+		Perm:       p,
 	}
-	search := render.Render(page)
+	//search := render.Render(page)
+	render.Render(page)
 
 	err = db.pages.Set(st, page)
 	if err != nil {
 		return
 	}
 
-	err = db.Index.Add(title, st, search)
-	if err != nil {
-		return
-	}
+	//TODO
+	//err = db.Index.Add(title, st, search)
+	//if err != nil {
+	//	return
+	//}
 	db.cache.Add(st, page)
 	return
 }
 
-func (db *DB) UpdatePage(title, section, markdown, username string, perm int) (page *core.Page, err error) {
-	p := core.ParsePerm(perm)
+func (db *DB) UpdatePage(title, section, markdown, username string, p core.Permission) (err error) {
 	if p == core.Invalid {
 		err = errInvalidPermission
 		return
 	}
-	if section == wikiSection && p == core.Private {
+	if section == core.WikiSection && p == core.Private {
 		err = errPrivateWikiPage
 		return
 	}
 	st := util.StoreTitle(section, title)
-	page, err = db.pageExists(st, username)
+	page, err := db.getPage(st, username)
 	if err != nil {
 		return
 	}
+	if !core.WritePerm(username, section, page) {
+		return errPermissionDenied
+	}
 
 	page.Markdown = markdown
 	page.Updated = created(username)
 	page.Perm = p
-	search := render.Render(page)
+	//TODO
+	//search := render.Render(page)
+	render.Render(page)
 
 	err = db.pages.Set(st, page)
 	if err != nil {
 		return
 	}
 
-	err = db.Index.Add(title, st, search)
-	if err != nil {
-		return
-	}
+	//TODO
+	//err = db.Index.Add(title, st, search)
+	//if err != nil {
+	//	return
+	//}
 	db.cache.Add(st, page)
 	return
 }
 
 func (db *DB) DeletePage(title, section, username string) (err error) {
-	st := util.StoreTitle(section, title)
-	if _, err = db.pageExists(st, username); err != nil {
+	var page *core.Page
+	if section == core.WikiSection && title == core.IndexPage {
+		err = errDeleteIndexPage
 		return
 	}
+	st := util.StoreTitle(section, title)
+	if page, err = db.getPage(st, username); err != nil {
+		return
+	}
+	if !core.WritePerm(username, section, page) {
+		return errPermissionDenied
+	}
+
 	if err = db.pages.Delete(st); err != nil {
 		return
 	}
-	return db.Index.Delete(st)
+	db.cache.Delete(st)
+	return nil
+	//TODO
+	//return db.Index.Delete(st)
 }