github.com/gaukas/goofys100m@v0.24.0/api/common/config.go (about)

     1  // Copyright 2015 - 2019 Ka-Hing Cheung
     2  // Copyright 2015 - 2017 Google Inc. All Rights Reserved.
     3  // Copyright 2019 Databricks
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  package common
    18  
    19  import (
    20  	"mime"
    21  	"net"
    22  	"net/http"
    23  	"os"
    24  	"strings"
    25  	"time"
    26  )
    27  
    28  type FlagStorage struct {
    29  	// File system
    30  	MountOptions      map[string]string
    31  	MountPoint        string
    32  	MountPointArg     string
    33  	MountPointCreated string
    34  
    35  	Cache    []string
    36  	DirMode  os.FileMode
    37  	FileMode os.FileMode
    38  	Uid      uint32
    39  	Gid      uint32
    40  
    41  	// Common Backend Config
    42  	UseContentType bool
    43  	Endpoint       string
    44  
    45  	Backend interface{}
    46  
    47  	// Tuning
    48  	Cheap        bool
    49  	ExplicitDir  bool
    50  	StatCacheTTL time.Duration
    51  	TypeCacheTTL time.Duration
    52  	HTTPTimeout  time.Duration
    53  
    54  	// Debugging
    55  	DebugFuse  bool
    56  	DebugS3    bool
    57  	Foreground bool
    58  }
    59  
    60  func (flags *FlagStorage) GetMimeType(fileName string) (retMime *string) {
    61  	if flags.UseContentType {
    62  		dotPosition := strings.LastIndex(fileName, ".")
    63  		if dotPosition == -1 {
    64  			return nil
    65  		}
    66  		mimeType := mime.TypeByExtension(fileName[dotPosition:])
    67  		if mimeType == "" {
    68  			return nil
    69  		}
    70  		semicolonPosition := strings.LastIndex(mimeType, ";")
    71  		if semicolonPosition == -1 {
    72  			return &mimeType
    73  		}
    74  		s := mimeType[:semicolonPosition]
    75  		retMime = &s
    76  	}
    77  
    78  	return
    79  }
    80  
    81  func (flags *FlagStorage) Cleanup() {
    82  	if flags.MountPointCreated != "" && flags.MountPointCreated != flags.MountPointArg {
    83  		err := os.Remove(flags.MountPointCreated)
    84  		if err != nil {
    85  			log.Errorf("rmdir %v = %v", flags.MountPointCreated, err)
    86  		}
    87  	}
    88  }
    89  
    90  var defaultHTTPTransport = http.Transport{
    91  	Proxy: http.ProxyFromEnvironment,
    92  	DialContext: (&net.Dialer{
    93  		Timeout:   30 * time.Second,
    94  		KeepAlive: 30 * time.Second,
    95  		DualStack: true,
    96  	}).DialContext,
    97  	MaxIdleConns:          1000,
    98  	MaxIdleConnsPerHost:   1000,
    99  	IdleConnTimeout:       90 * time.Second,
   100  	TLSHandshakeTimeout:   10 * time.Second,
   101  	ExpectContinueTimeout: 10 * time.Second,
   102  }
   103  
   104  func GetHTTPTransport() *http.Transport {
   105  	return &defaultHTTPTransport
   106  }