120 lines
2.4 KiB
Go
120 lines
2.4 KiB
Go
package db
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import (
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"git.giftfish.de/ston1th/gowiki/pkg/core"
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"git.giftfish.de/ston1th/gowiki/pkg/render"
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"git.giftfish.de/ston1th/gowiki/pkg/store"
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"git.giftfish.de/ston1th/gowiki/pkg/util"
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)
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var (
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errPageNotFound = store.ErrKeyNotFound
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errInvalidPermission = dbErr("invalid permission")
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errPrivateWikiPage = dbErr("private wiki pages are not allowed")
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)
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func (db *DB) GetPage(title, username string) (p *core.Page, err error) {
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p = db.cache.Get(title)
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if p == nil {
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p = new(core.Page)
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err = db.pages.Get(title, p)
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db.cache.Add(title, p)
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}
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if !core.ReadPerm(username, p) {
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err = errPageNotFound
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}
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return
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}
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func (db *DB) pageExists(title, username string) (p *core.Page, err error) {
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p = new(core.Page)
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err = db.pages.Get(title, p)
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if err != nil {
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return
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}
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if !core.ReadPerm(username, p) {
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err = errPageNotFound
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}
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return
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}
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func (db *DB) CreatePage(title, section, markdown, username string, p core.Permission) (page *core.Page, err error) {
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if p == core.Invalid {
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err = errInvalidPermission
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return
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}
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if section == wikiSection && p == core.Private {
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err = errPrivateWikiPage
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return
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}
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st := util.StoreTitle(section, title)
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if _, err = db.pageExists(st, username); err != nil {
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return
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}
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page = &core.Page{
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Title: title,
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Markdown: markdown,
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Created: created(username),
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Owner: username,
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Perm: p,
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}
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search := render.Render(page)
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err = db.pages.Set(st, page)
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if err != nil {
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return
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}
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err = db.Index.Add(title, st, search)
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if err != nil {
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return
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}
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db.cache.Add(st, page)
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return
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}
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func (db *DB) UpdatePage(title, section, markdown, username string, perm int) (page *core.Page, err error) {
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p := core.ParsePerm(perm)
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if p == core.Invalid {
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err = errInvalidPermission
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return
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}
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if section == wikiSection && p == core.Private {
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err = errPrivateWikiPage
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return
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}
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st := util.StoreTitle(section, title)
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page, err = db.pageExists(st, username)
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if err != nil {
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return
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}
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page.Markdown = markdown
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page.Updated = created(username)
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page.Perm = p
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search := render.Render(page)
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err = db.pages.Set(st, page)
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if err != nil {
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return
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}
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err = db.Index.Add(title, st, search)
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if err != nil {
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return
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}
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db.cache.Add(st, page)
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return
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}
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func (db *DB) DeletePage(title, section, username string) (err error) {
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st := util.StoreTitle(section, title)
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if _, err = db.pageExists(st, username); err != nil {
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return
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}
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if err = db.pages.Delete(st); err != nil {
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return
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}
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return db.Index.Delete(st)
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}
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