package api import ( "errors" "fmt" "net/url" "strconv" cid "github.com/ipfs/go-cid" peer "github.com/libp2p/go-libp2p/core/peer" ) // DefaultShardSize is the shard size for params objects created with DefaultParams(). var DefaultShardSize = uint64(100 * 1024 * 1024) // 100 MB // AddedOutput carries information for displaying the standard ipfs output // indicating a node of a file has been added. type AddedOutput struct { Name string `json:"name" codec:"n,omitempty"` Cid Cid `json:"cid" codec:"c"` Bytes uint64 `json:"bytes,omitempty" codec:"b,omitempty"` Size uint64 `json:"size,omitempty" codec:"s,omitempty"` Allocations []peer.ID `json:"allocations,omitempty" codec:"a,omitempty"` } // IPFSAddParams groups options specific to the ipfs-adder, which builds // UnixFS dags with the input files. This struct is embedded in AddParams. type IPFSAddParams struct { Layout string Chunker string RawLeaves bool Progress bool CidVersion int HashFun string NoCopy bool } // AddParams contains all of the configurable parameters needed to specify the // importing process of a file being added to an ipfs-cluster type AddParams struct { PinOptions Local bool Recursive bool Hidden bool Wrap bool Shard bool StreamChannels bool Format string // selects with adder NoPin bool IPFSAddParams } // DefaultAddParams returns a AddParams object with standard defaults func DefaultAddParams() AddParams { return AddParams{ Local: false, Recursive: false, Hidden: false, Wrap: false, Shard: false, StreamChannels: true, Format: "unixfs", NoPin: false, PinOptions: PinOptions{ ReplicationFactorMin: 0, ReplicationFactorMax: 0, Name: "", Mode: PinModeRecursive, ShardSize: DefaultShardSize, Metadata: make(map[string]string), Origins: nil, }, IPFSAddParams: IPFSAddParams{ Layout: "", // corresponds to balanced layout Chunker: "size-262144", RawLeaves: false, Progress: false, CidVersion: 0, HashFun: "sha2-256", NoCopy: false, }, } } func parseBoolParam(q url.Values, name string, dest *bool) error { if v := q.Get(name); v != "" { b, err := strconv.ParseBool(v) if err != nil { return fmt.Errorf("parameter %s invalid", name) } *dest = b } return nil } func parseIntParam(q url.Values, name string, dest *int) error { if v := q.Get(name); v != "" { i, err := strconv.Atoi(v) if err != nil { return fmt.Errorf("parameter %s invalid", name) } *dest = i } return nil } // AddParamsFromQuery parses the AddParams object from // a URL.Query(). func AddParamsFromQuery(query url.Values) (AddParams, error) { params := DefaultAddParams() opts := &PinOptions{} err := opts.FromQuery(query) if err != nil { return params, err } params.PinOptions = *opts params.PinUpdate.Cid = cid.Undef // hardcode as does not make sense for adding layout := query.Get("layout") switch layout { case "trickle", "balanced", "": // nothing default: return params, errors.New("layout parameter is invalid") } params.Layout = layout chunker := query.Get("chunker") if chunker != "" { params.Chunker = chunker } hashF := query.Get("hash") if hashF != "" { params.HashFun = hashF } format := query.Get("format") switch format { case "car", "unixfs", "": default: return params, errors.New("format parameter is invalid") } params.Format = format err = parseBoolParam(query, "local", ¶ms.Local) if err != nil { return params, err } err = parseBoolParam(query, "recursive", ¶ms.Recursive) if err != nil { return params, err } err = parseBoolParam(query, "hidden", ¶ms.Hidden) if err != nil { return params, err } err = parseBoolParam(query, "wrap-with-directory", ¶ms.Wrap) if err != nil { return params, err } err = parseBoolParam(query, "shard", ¶ms.Shard) if err != nil { return params, err } err = parseBoolParam(query, "progress", ¶ms.Progress) if err != nil { return params, err } err = parseIntParam(query, "cid-version", ¶ms.CidVersion) if err != nil { return params, err } // This mimics go-ipfs behavior. if params.CidVersion > 0 { params.RawLeaves = true } // If the raw-leaves param is empty, the default RawLeaves value will // take place (which may be true or false depending on // CidVersion). Otherwise, it will be explicitly set. err = parseBoolParam(query, "raw-leaves", ¶ms.RawLeaves) if err != nil { return params, err } err = parseBoolParam(query, "stream-channels", ¶ms.StreamChannels) if err != nil { return params, err } err = parseBoolParam(query, "nocopy", ¶ms.NoCopy) if err != nil { return params, err } err = parseBoolParam(query, "no-pin", ¶ms.NoPin) if err != nil { return params, err } return params, nil } // ToQueryString returns a url query string (key=value&key2=value2&...) func (p AddParams) ToQueryString() (string, error) { pinOptsQuery, err := p.PinOptions.ToQuery() if err != nil { return "", err } query, err := url.ParseQuery(pinOptsQuery) if err != nil { return "", err } query.Set("shard", fmt.Sprintf("%t", p.Shard)) query.Set("local", fmt.Sprintf("%t", p.Local)) query.Set("recursive", fmt.Sprintf("%t", p.Recursive)) query.Set("layout", p.Layout) query.Set("chunker", p.Chunker) query.Set("raw-leaves", fmt.Sprintf("%t", p.RawLeaves)) query.Set("hidden", fmt.Sprintf("%t", p.Hidden)) query.Set("wrap-with-directory", fmt.Sprintf("%t", p.Wrap)) query.Set("progress", fmt.Sprintf("%t", p.Progress)) query.Set("cid-version", fmt.Sprintf("%d", p.CidVersion)) query.Set("hash", p.HashFun) query.Set("stream-channels", fmt.Sprintf("%t", p.StreamChannels)) query.Set("nocopy", fmt.Sprintf("%t", p.NoCopy)) query.Set("format", p.Format) query.Set("no-pin", fmt.Sprintf("%t", p.NoPin)) return query.Encode(), nil } // Equals checks if p equals p2. func (p AddParams) Equals(p2 AddParams) bool { return p.PinOptions.Equals(p2.PinOptions) && p.Local == p2.Local && p.Recursive == p2.Recursive && p.Shard == p2.Shard && p.Layout == p2.Layout && p.Chunker == p2.Chunker && p.RawLeaves == p2.RawLeaves && p.Hidden == p2.Hidden && p.Wrap == p2.Wrap && p.CidVersion == p2.CidVersion && p.HashFun == p2.HashFun && p.StreamChannels == p2.StreamChannels && p.NoCopy == p2.NoCopy && p.Format == p2.Format && p.NoPin == p2.NoPin }