github.com/olivere/camlistore@v0.0.0-20140121221811-1b7ac2da0199/cmd/camtool/claims.go (about)

     1  /*
     2  Copyright 2014 The Camlistore Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8       http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"encoding/json"
    21  	"flag"
    22  	"fmt"
    23  	"log"
    24  	"net/http"
    25  	"os"
    26  
    27  	"camlistore.org/pkg/blob"
    28  	"camlistore.org/pkg/client"
    29  	"camlistore.org/pkg/cmdmain"
    30  	"camlistore.org/pkg/search"
    31  )
    32  
    33  type claimsCmd struct {
    34  	src string
    35  
    36  	logger *log.Logger
    37  }
    38  
    39  func init() {
    40  	cmdmain.RegisterCommand("claims", func(flags *flag.FlagSet) cmdmain.CommandRunner {
    41  		cmd := new(claimsCmd)
    42  		flags.StringVar(&cmd.src, "src", "", "Source blobserver is either a URL prefix (with optional path), a host[:port], a path (starting with /, ./, or ../), or blank to use the Camlistore client config's default host.")
    43  		return cmd
    44  	})
    45  }
    46  
    47  func (c *claimsCmd) Describe() string {
    48  	return "Ask the search system to describe one or more blobs."
    49  }
    50  
    51  func (c *claimsCmd) Usage() {
    52  	fmt.Fprintf(os.Stderr, "Usage: camtool [globalopts] describe [--depth=n] blobref [blobref, blobref...]\n")
    53  }
    54  
    55  func (c *claimsCmd) Examples() []string {
    56  	return []string{}
    57  }
    58  
    59  func (c *claimsCmd) RunCommand(args []string) error {
    60  	if len(args) != 1 {
    61  		return cmdmain.UsageError("requires 1 blobref")
    62  	}
    63  	br, ok := blob.Parse(args[0])
    64  	if !ok {
    65  		return cmdmain.UsageError("invalid blobref")
    66  	}
    67  	cl := c.client()
    68  	res, err := cl.GetClaims(&search.ClaimsRequest{
    69  		Permanode: br,
    70  	})
    71  	if err != nil {
    72  		return err
    73  	}
    74  	resj, err := json.MarshalIndent(res, "", "  ")
    75  	if err != nil {
    76  		return err
    77  	}
    78  	resj = append(resj, '\n')
    79  	_, err = os.Stdout.Write(resj)
    80  	return err
    81  }
    82  
    83  func (c *claimsCmd) client() *client.Client {
    84  	var cl *client.Client
    85  	if c.src == "" {
    86  		cl = client.NewOrFail()
    87  	} else {
    88  		cl = client.New(c.src)
    89  	}
    90  	cl.SetLogger(c.logger)
    91  	cl.SetHTTPClient(&http.Client{
    92  		Transport: cl.TransportForConfig(nil),
    93  	})
    94  	cl.SetupAuth()
    95  	return cl
    96  }