sdk/go/arvados/fs_project.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: Apache-2.0
   4
   5 package arvados
   6
   7 import (
   8         "log"
   9         "strings"
  10 )
  11
  12 func (fs *customFileSystem) defaultUUID(uuid string) (string, error) {
  13         if uuid != "" {
  14                 return uuid, nil
  15         }
  16         var resp User
  17         err := fs.RequestAndDecode(&resp, "GET", "arvados/v1/users/current", nil, nil)
  18         if err != nil {
  19                 return "", err
  20         }
  21         return resp.UUID, nil
  22 }
  23
  24 // loadOneChild loads only the named child, if it exists.
  25 func (fs *customFileSystem) projectsLoadOne(parent inode, uuid, name string) (inode, error) {
  26         uuid, err := fs.defaultUUID(uuid)
  27         if err != nil {
  28                 return nil, err
  29         }
  30
  31         var contents CollectionList
  32         for _, subst := range []string{"/", fs.forwardSlashNameSubstitution} {
  33                 contents = CollectionList{}
  34                 err = fs.RequestAndDecode(&contents, "GET", "arvados/v1/groups/"+uuid+"/contents", nil, ResourceListParams{
  35                         Count: "none",
  36                         Filters: []Filter{
  37                                 {"name", "=", strings.Replace(name, subst, "/", -1)},
  38                                 {"uuid", "is_a", []string{"arvados#collection", "arvados#group"}},
  39                                 {"groups.group_class", "=", "project"},
  40                         },
  41                 })
  42                 if err != nil {
  43                         return nil, err
  44                 }
  45                 if len(contents.Items) > 0 || fs.forwardSlashNameSubstitution == "/" || fs.forwardSlashNameSubstitution == "" || !strings.Contains(name, fs.forwardSlashNameSubstitution) {
  46                         break
  47                 }
  48                 // If the requested name contains the configured "/"
  49                 // replacement string and didn't match a
  50                 // project/collection exactly, we'll try again with
  51                 // "/" in its place, so a lookup of a munged name
  52                 // works regardless of whether the directory listing
  53                 // has been populated with escaped names.
  54                 //
  55                 // Note this doesn't handle items whose names contain
  56                 // both "/" and the substitution string.
  57         }
  58         if len(contents.Items) == 0 {
  59                 return nil, nil
  60         }
  61         coll := contents.Items[0]
  62
  63         if strings.Contains(coll.UUID, "-j7d0g-") {
  64                 // Group item was loaded into a Collection var -- but
  65                 // we only need the Name and UUID anyway, so it's OK.
  66                 return fs.newProjectNode(parent, coll.Name, coll.UUID), nil
  67         } else if strings.Contains(coll.UUID, "-4zz18-") {
  68                 return deferredCollectionFS(fs, parent, coll), nil
  69         } else {
  70                 log.Printf("projectnode: unrecognized UUID in response: %q", coll.UUID)
  71                 return nil, ErrInvalidArgument
  72         }
  73 }
  74
  75 func (fs *customFileSystem) projectsLoadAll(parent inode, uuid string) ([]inode, error) {
  76         uuid, err := fs.defaultUUID(uuid)
  77         if err != nil {
  78                 return nil, err
  79         }
  80
  81         var inodes []inode
  82
  83         // Note: the "filters" slice's backing array might be reused
  84         // by append(filters,...) below. This isn't goroutine safe,
  85         // but all accesses are in the same goroutine, so it's OK.
  86         filters := []Filter{{"owner_uuid", "=", uuid}}
  87         params := ResourceListParams{
  88                 Count:   "none",
  89                 Filters: filters,
  90                 Order:   "uuid",
  91         }
  92         for {
  93                 var resp CollectionList
  94                 err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/collections", nil, params)
  95                 if err != nil {
  96                         return nil, err
  97                 }
  98                 if len(resp.Items) == 0 {
  99                         break
 100                 }
 101                 for _, i := range resp.Items {
 102                         coll := i
 103                         if fs.forwardSlashNameSubstitution != "" {
 104                                 coll.Name = strings.Replace(coll.Name, "/", fs.forwardSlashNameSubstitution, -1)
 105                         }
 106                         if !permittedName(coll.Name) {
 107                                 continue
 108                         }
 109                         inodes = append(inodes, deferredCollectionFS(fs, parent, coll))
 110                 }
 111                 params.Filters = append(filters, Filter{"uuid", ">", resp.Items[len(resp.Items)-1].UUID})
 112         }
 113
 114         filters = append(filters, Filter{"group_class", "=", "project"})
 115         params.Filters = filters
 116         for {
 117                 var resp GroupList
 118                 err = fs.RequestAndDecode(&resp, "GET", "arvados/v1/groups", nil, params)
 119                 if err != nil {
 120                         return nil, err
 121                 }
 122                 if len(resp.Items) == 0 {
 123                         break
 124                 }
 125                 for _, group := range resp.Items {
 126                         if fs.forwardSlashNameSubstitution != "" {
 127                                 group.Name = strings.Replace(group.Name, "/", fs.forwardSlashNameSubstitution, -1)
 128                         }
 129                         if !permittedName(group.Name) {
 130                                 continue
 131                         }
 132                         inodes = append(inodes, fs.newProjectNode(parent, group.Name, group.UUID))
 133                 }
 134                 params.Filters = append(filters, Filter{"uuid", ">", resp.Items[len(resp.Items)-1].UUID})
 135         }
 136         return inodes, nil
 137 }