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This commit is contained in:
Henrique Dias 2017-06-25 15:19:23 +01:00
parent e1bee6d07e
commit 70c00db16b
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GPG Key ID: 936F5EB68D786730
2 changed files with 107 additions and 97 deletions
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27
filemanager.go
View File

@ -37,11 +37,16 @@ type FileManager struct {
// Users is a map with the different configurations for each user.
Users map[string]*user
// TODO: event-based?
BeforeSave CommandFunc
AfterSave CommandFunc
// BeforeSave is a function that is called before saving a file.
BeforeSave Command
// AfterSave is a function that is called before saving a file.
AfterSave Command
}
// Command is a command function.
type Command func(r *http.Request, m *FileManager, u *user) error
// user contains the configuration for each user.
type user struct {
// scope is the physical path the user has access to.
@ -91,24 +96,20 @@ type Rule struct {
Regexp *regexp.Regexp
}
type CommandFunc func(r *http.Request, c *FileManager, u *user) error
// New creates a new File Manager instance with the needed
// configuration to work.
func New(scope string) *FileManager {
m := &FileManager{
user: &user{
AllowCommands: true,
AllowEdit: true,
AllowNew: true,
Commands: []string{"git", "svn", "hg"},
Rules: []*Rule{{
Regex: true,
Allow: false,
Regexp: regexp.MustCompile("\\/\\..+"),
}},
Commands: []string{},
Rules: []*Rule{},
},
Users: map[string]*user{},
BeforeSave: func(r *http.Request, c *FileManager, u *user) error { return nil },
AfterSave: func(r *http.Request, c *FileManager, u *user) error { return nil },
BeforeSave: func(r *http.Request, m *FileManager, u *user) error { return nil },
AfterSave: func(r *http.Request, m *FileManager, u *user) error { return nil },
Assets: &assets{
Templates: rice.MustFindBox("./_assets/templates"),
CSS: rice.MustFindBox("./_assets/css"),

177
http.go
View File

@ -16,93 +16,33 @@ func matchURL(first, second string) bool {
}
// ServeHTTP determines if the request is for this plugin, and if all prerequisites are met.
func (c *FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
func (m *FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
var (
fi *fileInfo
u *user
code int
err error
user *user
)
// Checks if the URL matches the Assets URL. Returns the asset if the
// method is GET and Status Forbidden otherwise.
if matchURL(r.URL.Path, c.baseURL+assetsURL) {
if matchURL(r.URL.Path, m.baseURL+assetsURL) {
if r.Method == http.MethodGet {
return serveAssets(w, r, c)
return serveAssets(w, r, m)
}
return http.StatusForbidden, nil
}
username, _, _ := r.BasicAuth()
if _, ok := c.Users[username]; ok {
user = c.Users[username]
if _, ok := m.Users[username]; ok {
u = m.Users[username]
} else {
user = c.user
u = m.user
}
// Checks if the request URL is for the WebDav server
if matchURL(r.URL.Path, c.webDavURL) {
// Checks for user permissions relatively to this PATH
if !user.Allowed(strings.TrimPrefix(r.URL.Path, c.webDavURL)) {
return http.StatusForbidden, nil
}
switch r.Method {
case "GET", "HEAD":
// Excerpt from RFC4918, section 9.4:
//
// GET, when applied to a collection, may return the contents of an
// "index.html" resource, a human-readable view of the contents of
// the collection, or something else altogether.
//
// It was decided on https://github.com/hacdias/caddy-filemanager/issues/85
// that GET, for collections, will return the same as PROPFIND method.
path := strings.Replace(r.URL.Path, c.webDavURL, "", 1)
path = user.scope + "/" + path
path = filepath.Clean(path)
var i os.FileInfo
i, err = os.Stat(path)
if err != nil {
// Is there any error? WebDav will handle it... no worries.
break
}
if i.IsDir() {
r.Method = "PROPFIND"
if r.Method == "HEAD" {
w = newResponseWriterNoBody(w)
}
}
case "PROPPATCH", "MOVE", "PATCH", "PUT", "DELETE":
if !user.AllowEdit {
return http.StatusForbidden, nil
}
case "MKCOL", "COPY":
if !user.AllowNew {
return http.StatusForbidden, nil
}
}
// Preprocess the PUT request if it's the case
if r.Method == http.MethodPut {
if err = c.BeforeSave(r, c, user); err != nil {
return http.StatusInternalServerError, err
}
if put(w, r, c, user) != nil {
return http.StatusInternalServerError, err
}
}
c.handler.ServeHTTP(w, r)
if err = c.AfterSave(r, c, user); err != nil {
return http.StatusInternalServerError, err
}
return 0, nil
if matchURL(r.URL.Path, m.webDavURL) {
return serveWebDAV(w, r, m, u)
}
w.Header().Set("x-frame-options", "SAMEORIGIN")
@ -110,7 +50,7 @@ func (c *FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, er
w.Header().Set("x-xss-protection", "1; mode=block")
// Checks if the User is allowed to access this file
if !user.Allowed(strings.TrimPrefix(r.URL.Path, c.baseURL)) {
if !u.Allowed(strings.TrimPrefix(r.URL.Path, m.baseURL)) {
if r.Method == http.MethodGet {
return htmlError(
w, http.StatusForbidden,
@ -122,43 +62,46 @@ func (c *FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, er
}
if r.URL.Query().Get("search") != "" {
return search(w, r, c, user)
return search(w, r, m, u)
}
if r.URL.Query().Get("command") != "" {
return command(w, r, c, user)
return command(w, r, m, u)
}
if r.Method == http.MethodGet {
// Gets the information of the directory/file
fi, err = getInfo(r.URL, c, user)
var f *fileInfo
// Obtains the information of the directory/file.
f, err = getInfo(r.URL, m, u)
if err != nil {
if r.Method == http.MethodGet {
return htmlError(w, code, err)
}
code = errorToHTTP(err, false)
return code, err
}
// If it's a dir and the path doesn't end with a trailing slash,
// redirect the user.
if fi.IsDir && !strings.HasSuffix(r.URL.Path, "/") {
http.Redirect(w, r, c.PrefixURL+r.URL.Path+"/", http.StatusTemporaryRedirect)
if f.IsDir && !strings.HasSuffix(r.URL.Path, "/") {
http.Redirect(w, r, m.PrefixURL+r.URL.Path+"/", http.StatusTemporaryRedirect)
return 0, nil
}
switch {
case r.URL.Query().Get("download") != "":
code, err = download(w, r, fi)
case r.URL.Query().Get("raw") == "true" && !fi.IsDir:
http.ServeFile(w, r, fi.Path)
code, err = download(w, r, f)
case r.URL.Query().Get("raw") == "true" && !f.IsDir:
http.ServeFile(w, r, f.Path)
code, err = 0, nil
case !fi.IsDir && r.URL.Query().Get("checksum") != "":
code, err = checksum(w, r, fi)
case fi.IsDir:
code, err = serveListing(w, r, c, user, fi)
case !f.IsDir && r.URL.Query().Get("checksum") != "":
code, err = checksum(w, r, f)
case f.IsDir:
code, err = serveListing(w, r, m, u, f)
default:
code, err = serveSingle(w, r, c, user, fi)
code, err = serveSingle(w, r, m, u, f)
}
if err != nil {
@ -170,3 +113,69 @@ func (c *FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, er
return http.StatusNotImplemented, nil
}
// serveWebDAV handles the webDAV route of the File Manager.
func serveWebDAV(w http.ResponseWriter, r *http.Request, m *FileManager, u *user) (int, error) {
var err error
// Checks for user permissions relatively to this path.
if !u.Allowed(strings.TrimPrefix(r.URL.Path, m.webDavURL)) {
return http.StatusForbidden, nil
}
switch r.Method {
case "GET", "HEAD":
// Excerpt from RFC4918, section 9.4:
//
// GET, when applied to a collection, may return the contents of an
// "index.html" resource, a human-readable view of the contents of
// the collection, or something else altogether.
//
// It was decided on https://github.com/hacdias/caddy-filemanager/issues/85
// that GET, for collections, will return the same as PROPFIND method.
path := strings.Replace(r.URL.Path, m.webDavURL, "", 1)
path = u.scope + "/" + path
path = filepath.Clean(path)
var i os.FileInfo
i, err = os.Stat(path)
if err != nil {
// Is there any error? WebDav will handle it... no worries.
break
}
if i.IsDir() {
r.Method = "PROPFIND"
if r.Method == "HEAD" {
w = newResponseWriterNoBody(w)
}
}
case "PROPPATCH", "MOVE", "PATCH", "PUT", "DELETE":
if !u.AllowEdit {
return http.StatusForbidden, nil
}
case "MKCOL", "COPY":
if !u.AllowNew {
return http.StatusForbidden, nil
}
}
// Preprocess the PUT request if it's the case
if r.Method == http.MethodPut {
if err = m.BeforeSave(r, m, u); err != nil {
return http.StatusInternalServerError, err
}
if put(w, r, m, u) != nil {
return http.StatusInternalServerError, err
}
}
m.handler.ServeHTTP(w, r)
if err = m.AfterSave(r, m, u); err != nil {
return http.StatusInternalServerError, err
}
return 0, nil
}