mirror of https://github.com/perkeep/perkeep.git
89 lines
2.4 KiB
Go
89 lines
2.4 KiB
Go
/*
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Copyright 2011 The Perkeep Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package server
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import (
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"log"
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"net/http"
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"perkeep.org/internal/httputil"
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"perkeep.org/pkg/blob"
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"perkeep.org/pkg/schema"
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)
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type FileTreeHandler struct {
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Fetcher blob.Fetcher
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file blob.Ref
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}
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// FileTreeNode represents a file in a file tree.
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// It is part of the FileTreeResponse.
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type FileTreeNode struct {
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// Name is the basename of the node.
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Name string `json:"name"`
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// Type is the camliType of the node. This may be "file", "directory", "symlink"
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// or other in the future.
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Type schema.CamliType `json:"type"`
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// BlobRef is the blob.Ref of the node.
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BlobRef blob.Ref `json:"blobRef"`
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}
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// FileTreeResponse is the JSON response for the FileTreeHandler.
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type FileTreeResponse struct {
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// Children is the list of children files of a directory.
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Children []FileTreeNode `json:"children"`
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}
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func (fth *FileTreeHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
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ctx := req.Context()
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if req.Method != "GET" && req.Method != "HEAD" {
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http.Error(rw, "Invalid method", http.StatusBadRequest)
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return
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}
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de, err := schema.NewDirectoryEntryFromBlobRef(ctx, fth.Fetcher, fth.file)
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if err != nil {
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http.Error(rw, "Error reading directory", 500)
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log.Printf("Error reading directory from blobref %s: %v\n", fth.file, err)
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return
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}
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dir, err := de.Directory(ctx)
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if err != nil {
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http.Error(rw, "Error reading directory", 500)
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log.Printf("Error reading directory from blobref %s: %v\n", fth.file, err)
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return
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}
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entries, err := dir.Readdir(ctx, -1)
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if err != nil {
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http.Error(rw, "Error reading directory", 500)
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log.Printf("reading dir from blobref %s: %v\n", fth.file, err)
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return
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}
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var ret = FileTreeResponse{
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Children: make([]FileTreeNode, 0, len(entries)),
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}
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for _, v := range entries {
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ret.Children = append(ret.Children, FileTreeNode{
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Name: v.FileName(),
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Type: v.CamliType(),
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BlobRef: v.BlobRef(),
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})
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}
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httputil.ReturnJSON(rw, ret)
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}
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