forked from TrueCloudLab/frostfs-node
127 lines
3.9 KiB
Go
127 lines
3.9 KiB
Go
package extended
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import (
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"bytes"
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"encoding/json"
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"os"
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"strings"
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"github.com/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/common"
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"github.com/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/commonflags"
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"github.com/TrueCloudLab/frostfs-node/cmd/frostfs-cli/modules/util"
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cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
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"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
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"github.com/spf13/cobra"
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)
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var createCmd = &cobra.Command{
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Use: "create",
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Short: "Create extended ACL from the text representation",
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Long: `Create extended ACL from the text representation.
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Rule consist of these blocks: <action> <operation> [<filter1> ...] [<target1> ...]
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Action is 'allow' or 'deny'.
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Operation is an object service verb: 'get', 'head', 'put', 'search', 'delete', 'getrange', or 'getrangehash'.
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Filter consists of <typ>:<key><match><value>
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Typ is 'obj' for object applied filter or 'req' for request applied filter.
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Key is a valid unicode string corresponding to object or request header key.
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Well-known system object headers start with '$Object:' prefix.
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User defined headers start without prefix.
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Read more about filter keys at github.com/TrueCloudLab/frostfs-api/blob/master/proto-docs/acl.md#message-eaclrecordfilter
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Match is '=' for matching and '!=' for non-matching filter.
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Value is a valid unicode string corresponding to object or request header value.
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Target is
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'user' for container owner,
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'system' for Storage nodes in container and Inner Ring nodes,
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'others' for all other request senders,
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'pubkey:<key1>,<key2>,...' for exact request sender, where <key> is a hex-encoded 33-byte public key.
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When both '--rule' and '--file' arguments are used, '--rule' records will be placed higher in resulting extended ACL table.
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`,
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Example: `frostfs-cli acl extended create --cid EutHBsdT1YCzHxjCfQHnLPL1vFrkSyLSio4vkphfnEk -f rules.txt --out table.json
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frostfs-cli acl extended create --cid EutHBsdT1YCzHxjCfQHnLPL1vFrkSyLSio4vkphfnEk -r 'allow get obj:Key=Value others' -r 'deny put others'`,
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Run: createEACL,
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}
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func init() {
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createCmd.Flags().StringArrayP("rule", "r", nil, "Extended ACL table record to apply")
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createCmd.Flags().StringP("file", "f", "", "Read list of extended ACL table records from text file")
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createCmd.Flags().StringP("out", "o", "", "Save JSON formatted extended ACL table in file")
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createCmd.Flags().StringP(commonflags.CIDFlag, "", "", commonflags.CIDFlagUsage)
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_ = cobra.MarkFlagFilename(createCmd.Flags(), "file")
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_ = cobra.MarkFlagFilename(createCmd.Flags(), "out")
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}
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func createEACL(cmd *cobra.Command, _ []string) {
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rules, _ := cmd.Flags().GetStringArray("rule")
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fileArg, _ := cmd.Flags().GetString("file")
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outArg, _ := cmd.Flags().GetString("out")
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cidArg, _ := cmd.Flags().GetString(commonflags.CIDFlag)
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var containerID cid.ID
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if cidArg != "" {
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if err := containerID.DecodeString(cidArg); err != nil {
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cmd.PrintErrf("invalid container ID: %v\n", err)
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os.Exit(1)
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}
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}
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rulesFile, err := getRulesFromFile(fileArg)
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if err != nil {
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cmd.PrintErrf("can't read rules from file: %v\n", err)
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os.Exit(1)
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}
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rules = append(rules, rulesFile...)
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if len(rules) == 0 {
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cmd.PrintErrln("no extended ACL rules has been provided")
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os.Exit(1)
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}
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tb := eacl.NewTable()
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common.ExitOnErr(cmd, "unable to parse provided rules: %w", util.ParseEACLRules(tb, rules))
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tb.SetCID(containerID)
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data, err := tb.MarshalJSON()
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if err != nil {
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cmd.PrintErrln(err)
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os.Exit(1)
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}
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buf := new(bytes.Buffer)
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err = json.Indent(buf, data, "", " ")
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if err != nil {
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cmd.PrintErrln(err)
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os.Exit(1)
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}
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if len(outArg) == 0 {
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cmd.Println(buf)
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return
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}
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err = os.WriteFile(outArg, buf.Bytes(), 0644)
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if err != nil {
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cmd.PrintErrln(err)
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os.Exit(1)
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}
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}
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func getRulesFromFile(filename string) ([]string, error) {
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if len(filename) == 0 {
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return nil, nil
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}
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data, err := os.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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return strings.Split(strings.TrimSpace(string(data)), "\n"), nil
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}
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