118 lines
2.5 KiB
Go
118 lines
2.5 KiB
Go
package adder
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import (
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"errors"
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"fmt"
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"net/url"
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"strconv"
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"github.com/ipfs/ipfs-cluster/api"
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)
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// DefaultShardSize is the shard size for params objects created with DefaultParams().
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var DefaultShardSize = uint64(100 * 1024 * 1024) // 100 MB
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// Params contains all of the configurable parameters needed to specify the
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// importing process of a file being added to an ipfs-cluster
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type Params struct {
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api.PinOptions
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Layout string
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Chunker string
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RawLeaves bool
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Hidden bool
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Shard bool
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}
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// DefaultParams returns a Params object with standard defaults
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func DefaultParams() *Params {
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return &Params{
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Layout: "", // corresponds to balanced layout
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Chunker: "",
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RawLeaves: false,
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Hidden: false,
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Shard: false,
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PinOptions: api.PinOptions{
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ReplicationFactorMin: 0,
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ReplicationFactorMax: 0,
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Name: "",
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ShardSize: DefaultShardSize,
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},
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}
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}
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func parseBoolParam(q url.Values, name string, dest *bool) error {
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if v := q.Get(name); v != "" {
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b, err := strconv.ParseBool(v)
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if err != nil {
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return fmt.Errorf("parameter %s invalid", name)
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}
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*dest = b
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}
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return nil
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}
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func parseIntParam(q url.Values, name string, dest *int) error {
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if v := q.Get(name); v != "" {
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i, err := strconv.Atoi(v)
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if err != nil {
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return fmt.Errorf("parameter %s invalid", name)
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}
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*dest = i
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}
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return nil
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}
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// ParamsFromQuery parses the Params object from
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// a URL.Query().
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func ParamsFromQuery(query url.Values) (*Params, error) {
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params := DefaultParams()
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layout := query.Get("layout")
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switch layout {
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case "trickle":
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case "balanced":
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case "":
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// nothing
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default:
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return nil, errors.New("parameter trickle invalid")
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}
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params.Layout = layout
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chunker := query.Get("chunker")
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params.Chunker = chunker
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name := query.Get("name")
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params.Name = name
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err := parseBoolParam(query, "raw", ¶ms.RawLeaves)
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if err != nil {
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return nil, err
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}
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err = parseBoolParam(query, "hidden", ¶ms.Hidden)
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if err != nil {
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return nil, err
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}
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err = parseBoolParam(query, "shard", ¶ms.Shard)
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if err != nil {
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return nil, err
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}
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err = parseIntParam(query, "repl_min", ¶ms.ReplicationFactorMin)
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if err != nil {
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return nil, err
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}
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err = parseIntParam(query, "repl_max", ¶ms.ReplicationFactorMax)
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if err != nil {
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return nil, err
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}
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if v := query.Get("shard_size"); v != "" {
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shardSize, err := strconv.ParseUint(v, 10, 64)
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if err != nil {
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return nil, errors.New("parameter shard_size is invalid")
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}
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params.ShardSize = shardSize
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}
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return params, nil
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}
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