open-nomad/command/agent/fs_endpoint.go
2016-01-14 13:35:42 -08:00

78 lines
1.9 KiB
Go

package agent
import (
"fmt"
"io"
"net/http"
"strconv"
"strings"
)
var (
allocIDNotPresentErr = fmt.Errorf("must provide a valid alloc id")
fileNameNotPresentErr = fmt.Errorf("must provide a file name")
)
func (s *HTTPServer) DirectoryListRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
var allocID, path string
if allocID = strings.TrimPrefix(req.URL.Path, "/v1/client/fs/ls/"); allocID == "" {
return nil, allocIDNotPresentErr
}
if path = req.URL.Query().Get("path"); path == "" {
path = "/"
}
fs, err := s.agent.client.GetAllocFS(allocID)
if err != nil {
return nil, err
}
return fs.List(path)
}
func (s *HTTPServer) FileStatRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
var allocID, path string
if allocID = strings.TrimPrefix(req.URL.Path, "/v1/client/fs/stat/"); allocID == "" {
return nil, allocIDNotPresentErr
}
if path = req.URL.Query().Get("path"); path == "" {
return nil, fileNameNotPresentErr
}
fs, err := s.agent.client.GetAllocFS(allocID)
if err != nil {
return nil, err
}
return fs.Stat(path)
}
func (s *HTTPServer) FileReadAtRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
var allocID, path string
var offset, limit int64
var err error
q := req.URL.Query()
if allocID = strings.TrimPrefix(req.URL.Path, "/v1/client/fs/readat/"); allocID == "" {
return nil, allocIDNotPresentErr
}
if path = q.Get("path"); path == "" {
return nil, fileNameNotPresentErr
}
if offset, err = strconv.ParseInt(q.Get("offset"), 10, 64); err != nil {
return nil, fmt.Errorf("error parsing offset: %v", err)
}
if limit, err = strconv.ParseInt(q.Get("limit"), 10, 64); err != nil {
return nil, fmt.Errorf("error parsing limit: %v", err)
}
fs, err := s.agent.client.GetAllocFS(allocID)
if err != nil {
return nil, err
}
r, err := fs.ReadAt(path, offset, limit)
if err != nil {
return nil, err
}
io.Copy(resp, r)
return nil, nil
}