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aliasHandler.go
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aliasHandler.go
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package serverHandler
import (
"mjpclab.dev/ghfs/src/middleware"
"mjpclab.dev/ghfs/src/param"
"mjpclab.dev/ghfs/src/serverLog"
"mjpclab.dev/ghfs/src/tpl/theme"
"mjpclab.dev/ghfs/src/user"
"mjpclab.dev/ghfs/src/util"
"net/http"
"regexp"
"strconv"
"strings"
)
var defaultHandler = http.NotFoundHandler()
type aliasHandler struct {
alias
emptyRoot bool
autoDirSlash int
hsts bool
hstsMaxAge string
toHttps bool
toHttpsPort string // with prefix ":"
defaultSort string
users *user.List
theme theme.Theme
logger *serverLog.Logger
shows *regexp.Regexp
showDirs *regexp.Regexp
showFiles *regexp.Regexp
hides *regexp.Regexp
hideDirs *regexp.Regexp
hideFiles *regexp.Regexp
dirIndexes []string
aliases aliases
globalAuth bool
authUrls []string
authUrlsUsers pathIntsList
authDirs []string
authDirsUsers pathIntsList
globalUpload bool
uploadUrls []string
uploadUrlsUsers pathIntsList
uploadDirs []string
uploadDirsUsers pathIntsList
globalMkdir bool
mkdirUrls []string
mkdirUrlsUsers pathIntsList
mkdirDirs []string
mkdirDirsUsers pathIntsList
globalDelete bool
deleteUrls []string
deleteUrlsUsers pathIntsList
deleteDirs []string
deleteDirsUsers pathIntsList
globalArchive bool
archiveUrls []string
archiveDirs []string
globalCors bool
corsUrls []string
corsDirs []string
globalRestrictAccess []string
restrictAccessUrls pathStringsList
restrictAccessDirs pathStringsList
globalHeaders [][2]string
headersUrls pathHeadersList
headersDirs pathHeadersList
vary string
postMiddlewares []middleware.Middleware
}
func (h *aliasHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// hsts redirect
if h.hsts && h.tryHsts(w, r) {
return
}
// https redirect
if h.toHttps && h.tryToHttps(w, r) {
return
}
// asset
const assetPrefix = "asset="
if strings.HasPrefix(r.URL.RawQuery, assetPrefix) {
assetPath := r.URL.RawQuery[len(assetPrefix):]
h.asset(w, r, assetPath)
return
}
// data
session, data := h.getSessionData(r)
h.logErrors(session.errors)
if session.file != nil {
defer func() {
session.file.Close()
}()
}
if !session.allowAccess {
if !h.applyMiddlewares(h.postMiddlewares, w, r, session, data) {
h.page(w, r, session, data)
}
return
}
if session.needAuth {
h.notifyAuth(w, r)
}
if session.authSuccess {
if session.requestAuth {
h.redirectWithoutRequestAuth(w, r, session, data)
return
}
if session.redirectAction == addSlashSuffix {
redirect(w, r, session.prefixReqPath+"/", h.autoDirSlash)
return
} else if session.redirectAction == removeSlashSuffix {
redirect(w, r, session.prefixReqPath[:len(session.prefixReqPath)-1], h.autoDirSlash)
return
}
if data.CanCors {
cors(w)
}
header(w, session.headers)
if data.IsMutate {
h.mutate(w, r, session, data)
return
}
// archive
if len(r.URL.RawQuery) >= 3 {
switch r.URL.RawQuery[:3] {
case "tar":
h.tar(w, r, session, data)
return
case "tgz":
h.tgz(w, r, session, data)
return
case "zip":
h.zip(w, r, session, data)
return
}
}
}
if h.applyMiddlewares(h.postMiddlewares, w, r, session, data) {
return
}
// final process
if session.wantJson {
h.json(w, r, data)
} else if shouldServeAsContent(session.file, data.Item) {
h.content(w, r, session, data)
} else {
h.page(w, r, session, data)
}
}
func newAliasHandler(
p *param.Param,
vhostCtx *vhostContext,
currentAlias alias,
allAliases aliases,
) *aliasHandler {
emptyRoot := p.EmptyRoot && currentAlias.url == "/"
globalRestrictAccess := p.GlobalRestrictAccess
globalRestrictAccess = vhostCtx.restrictAccessUrls.mergePrefixMatched(globalRestrictAccess, util.HasUrlPrefixDir, currentAlias.url)
globalRestrictAccess = vhostCtx.restrictAccessDirs.mergePrefixMatched(globalRestrictAccess, util.HasFsPrefixDir, currentAlias.fs)
globalRestrictAccess = util.InPlaceDedup(globalRestrictAccess)
globalHeaders := p.GlobalHeaders
globalHeaders = vhostCtx.headersUrls.mergePrefixMatched(globalHeaders, util.HasUrlPrefixDir, currentAlias.url)
globalHeaders = vhostCtx.headersDirs.mergePrefixMatched(globalHeaders, util.HasFsPrefixDir, currentAlias.fs)
h := &aliasHandler{
alias: currentAlias,
emptyRoot: emptyRoot,
autoDirSlash: p.AutoDirSlash,
hsts: p.Hsts,
hstsMaxAge: strconv.Itoa(p.HstsMaxAge),
toHttps: p.ToHttps,
toHttpsPort: p.ToHttpsPort,
defaultSort: p.DefaultSort,
users: vhostCtx.users,
theme: vhostCtx.theme,
logger: vhostCtx.logger,
dirIndexes: p.DirIndexes,
aliases: allAliases.filterSuccessor(currentAlias.url),
globalAuth: p.GlobalAuth || prefixMatched(p.AuthUrls, util.HasUrlPrefixDir, currentAlias.url) || prefixMatched(p.AuthDirs, util.HasFsPrefixDir, currentAlias.fs),
authUrls: filterSuccessor(p.AuthUrls, util.HasUrlPrefixDir, currentAlias.url),
authUrlsUsers: vhostCtx.authUrlsUsers.filterSuccessor(true, util.HasUrlPrefixDir, currentAlias.url),
authDirs: filterSuccessor(p.AuthDirs, util.HasFsPrefixDir, currentAlias.fs),
authDirsUsers: vhostCtx.authDirsUsers.filterSuccessor(true, util.HasFsPrefixDir, currentAlias.fs),
globalUpload: p.GlobalUpload || prefixMatched(p.UploadUrls, util.HasUrlPrefixDir, currentAlias.url) || prefixMatched(p.UploadDirs, util.HasFsPrefixDir, currentAlias.fs),
uploadUrls: filterSuccessor(p.UploadUrls, util.HasUrlPrefixDir, currentAlias.url),
uploadUrlsUsers: vhostCtx.uploadUrlsUsers.filterSuccessor(true, util.HasUrlPrefixDir, currentAlias.url),
uploadDirs: filterSuccessor(p.UploadDirs, util.HasFsPrefixDir, currentAlias.fs),
uploadDirsUsers: vhostCtx.uploadDirsUsers.filterSuccessor(true, util.HasFsPrefixDir, currentAlias.fs),
globalMkdir: p.GlobalMkdir || prefixMatched(p.MkdirUrls, util.HasUrlPrefixDir, currentAlias.url) || prefixMatched(p.MkdirDirs, util.HasFsPrefixDir, currentAlias.fs),
mkdirUrls: filterSuccessor(p.MkdirUrls, util.HasUrlPrefixDir, currentAlias.url),
mkdirUrlsUsers: vhostCtx.mkdirUrlsUsers.filterSuccessor(true, util.HasUrlPrefixDir, currentAlias.url),
mkdirDirs: filterSuccessor(p.MkdirDirs, util.HasFsPrefixDir, currentAlias.fs),
mkdirDirsUsers: vhostCtx.mkdirDirsUsers.filterSuccessor(true, util.HasFsPrefixDir, currentAlias.fs),
globalDelete: p.GlobalDelete || prefixMatched(p.DeleteUrls, util.HasUrlPrefixDir, currentAlias.url) || prefixMatched(p.DeleteDirs, util.HasFsPrefixDir, currentAlias.fs),
deleteUrls: filterSuccessor(p.DeleteUrls, util.HasUrlPrefixDir, currentAlias.url),
deleteUrlsUsers: vhostCtx.deleteUrlsUsers.filterSuccessor(true, util.HasUrlPrefixDir, currentAlias.url),
deleteDirs: filterSuccessor(p.DeleteDirs, util.HasFsPrefixDir, currentAlias.fs),
deleteDirsUsers: vhostCtx.deleteDirsUsers.filterSuccessor(true, util.HasFsPrefixDir, currentAlias.fs),
globalArchive: p.GlobalArchive || prefixMatched(p.ArchiveUrls, util.HasUrlPrefixDir, currentAlias.url) || prefixMatched(p.ArchiveDirs, util.HasFsPrefixDir, currentAlias.fs),
archiveUrls: filterSuccessor(p.ArchiveUrls, util.HasUrlPrefixDir, currentAlias.url),
archiveDirs: filterSuccessor(p.ArchiveDirs, util.HasFsPrefixDir, currentAlias.fs),
globalCors: p.GlobalCors || prefixMatched(p.CorsUrls, util.HasUrlPrefixDir, currentAlias.url) || prefixMatched(p.CorsDirs, util.HasFsPrefixDir, currentAlias.fs),
corsUrls: filterSuccessor(p.CorsUrls, util.HasUrlPrefixDir, currentAlias.url),
corsDirs: filterSuccessor(p.CorsDirs, util.HasFsPrefixDir, currentAlias.fs),
globalRestrictAccess: globalRestrictAccess,
restrictAccessUrls: vhostCtx.restrictAccessUrls.filterSuccessor(false, util.HasUrlPrefixDir, currentAlias.url),
restrictAccessDirs: vhostCtx.restrictAccessDirs.filterSuccessor(false, util.HasFsPrefixDir, currentAlias.fs),
globalHeaders: globalHeaders,
headersUrls: vhostCtx.headersUrls.filterSuccessor(false, util.HasUrlPrefixDir, currentAlias.url),
headersDirs: vhostCtx.headersDirs.filterSuccessor(false, util.HasFsPrefixDir, currentAlias.fs),
shows: vhostCtx.shows,
showDirs: vhostCtx.showDirs,
showFiles: vhostCtx.showFiles,
hides: vhostCtx.hides,
hideDirs: vhostCtx.hideDirs,
hideFiles: vhostCtx.hideFiles,
vary: vhostCtx.vary,
postMiddlewares: p.PostMiddlewares,
}
return h
}