[server:internal] respect go format
This commit is contained in:
xdrm-brackets
parent
88055b944e
commit
ea7d7bb89e
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@ -1,13 +1,13 @@
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package server
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import (
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"encoding/binary"
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"errors"
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"fmt"
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"git.xdrm.io/schastsp/lib/scha"
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"git.xdrm.io/schastsp/lib/timeid"
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"git.xdrm.io/schastsp/lib/xor"
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"git.xdrm.io/schastsp/lib/scha"
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"encoding/binary"
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"os"
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"errors"
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)
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/* (1) Store hash into file
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@ -22,7 +22,7 @@ func (s T) store() error {
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if err != nil { return err }
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/* (2) Defer close */
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defer file.Close();
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defer file.Close()
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/* (3) Write hash into file */
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err = binary.Write(file, binary.BigEndian, s.hash)
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@ -32,10 +32,6 @@ func (s T) store() error {
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}
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/* (2) Fetch hash from file
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*
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* @return err<error> Error or NIL if not
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@ -48,7 +44,7 @@ func (s *T) fetch() error {
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if err != nil { return err }
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/* (2) Defer close */
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defer file.Close();
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defer file.Close()
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/* (3) Try to fetch hash from file */
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fetchedHash := make([]byte, scha.HSIZE)
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@ -67,8 +63,6 @@ func (s *T) fetch() error {
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}
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/* (3) Request management
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*
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* @x1<[]byte> First request component
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@ -91,8 +85,8 @@ func (s *T) manageRequest(x1 []byte, x2 []byte) (byte, error) {
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x := xor.ByteArray(x1, x2)
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/* (2) Extract migration code */
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mcode := uint8(x[1]) % 3;
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if DEBUG { fmt.Printf(" extracted code is o = %d\n", mcode) }
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mcode := uint8(x[1]) % 3
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if DEBUG { fmt.Printf(" extracted code is o = %d\n", mcode) }
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/* (3) Fail if no migration but different hashes */
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if mcode == 0 && string(x1[2:]) != string(x2[2:]) {
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@ -104,27 +98,27 @@ func (s *T) manageRequest(x1 []byte, x2 []byte) (byte, error) {
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---------------------------------------------------------*/
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/* (1) Extract time mod */
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timeMod := uint32(x[0]) % 2
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if DEBUG { fmt.Printf(" extracted time mod m = %d\n", timeMod) }
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if DEBUG { fmt.Printf(" extracted time mod m = %d\n", timeMod) }
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/* (2) Try to guess time id */
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timeId := timeid.Guess(s.ctx.Window(), timeMod)
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timeIdBytes := make([]byte, 4)
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binary.BigEndian.PutUint32(timeIdBytes, timeId)
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timeID := timeid.Guess(s.ctx.Window(), timeMod)
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timeIDBytes := make([]byte, 4)
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binary.BigEndian.PutUint32(timeIDBytes, timeID)
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/* (3) Hash guessed time id */
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hashedTimeId, err := scha.Hash(timeIdBytes, 1);
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hashedTimeID, err := scha.Hash(timeIDBytes, 1)
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if err != nil { return 2, err }
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/* (3) Extract hashes
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---------------------------------------------------------*/
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/* (1) Extract hash from x0 */
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h0 := xor.ByteArray(x1, hashedTimeId)
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if DEBUG { fmt.Printf(" supposing hash is h0 = %x\n", h0) }
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h0 := xor.ByteArray(x1, hashedTimeID)
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if DEBUG { fmt.Printf(" supposing hash is h0 = %x\n", h0) }
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/* (2) Extract next hash from x1 */
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h1 := xor.ByteArray(x2, hashedTimeId)
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if DEBUG { fmt.Printf(" supposing next is h1 = %x\n", h1) }
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h1 := xor.ByteArray(x2, hashedTimeID)
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if DEBUG { fmt.Printf(" supposing next is h1 = %x\n", h1) }
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/* (3) Only remove timeMod if migration code = 0 */
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if mcode == 0 {
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@ -132,7 +126,6 @@ func (s *T) manageRequest(x1 []byte, x2 []byte) (byte, error) {
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}
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/* (4) Hash h0 to compare with stored hash 's.hash'
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---------------------------------------------------------*/
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/* (1) Hash 1 time to check if matches */
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@ -143,8 +136,13 @@ func (s *T) manageRequest(x1 []byte, x2 []byte) (byte, error) {
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if mcode == 2 {
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hashedH0, err = scha.Hash(h0, s.ctx.MinDepth())
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if err != nil { return 2, err }
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if DEBUG { fmt.Printf(" hashed is h(min) = %x\n", hashedH0) }
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} else if DEBUG { fmt.Printf(" hashed is h(h0) = %x\n", hashedH0) }
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if DEBUG {
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fmt.Printf(" hashed is h(min) = %x\n", hashedH0)
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}
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} else if DEBUG {
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fmt.Printf(" hashed is h(h0) = %x\n", hashedH0)
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}
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/* (3) Fail if does not match */
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if string(hashedH0) != string(s.hash) {
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@ -155,14 +153,12 @@ func (s *T) manageRequest(x1 []byte, x2 []byte) (byte, error) {
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/* (5) Store next hash
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---------------------------------------------------------*/
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copy(s.hash, h1)
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s.store();
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s.store()
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return 0, nil
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}
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/* (4) Generate resynchronisation response
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*
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* @y1<[]byte> First response component to write into
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@ -174,30 +170,29 @@ func (s *T) manageRequest(x1 []byte, x2 []byte) (byte, error) {
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func (s *T) generateResynchronisationResponse(y1 []byte, y2 []byte) error {
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/* (1) Get current time id */
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timeId, timeMod := timeid.Generate(s.ctx.Window())
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timeID, timeMod := timeid.Generate(s.ctx.Window())
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/* (3) Hash the time id */
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timeIdBytes := make([]byte, 4)
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binary.BigEndian.PutUint32(timeIdBytes, timeId)
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timeIDBytes := make([]byte, 4)
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binary.BigEndian.PutUint32(timeIDBytes, timeID)
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hashedTimeId, err := scha.Hash(timeIdBytes, 1);
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hashedTimeID, err := scha.Hash(timeIDBytes, 1)
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if err != nil { return err }
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/* (4) Process y1 = H ^ h(timeId) */
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copy(y1, xor.ByteArray(s.hash, hashedTimeId))
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copy(y1, xor.ByteArray(s.hash, hashedTimeID))
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/* (5) Process y2 = H ^ h(timeId) ^ timeMod = y1 ^ timeMod */
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copy(y2, xor.ByteArray(s.hash, hashedTimeId))
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copy(y2, xor.ByteArray(s.hash, hashedTimeID))
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y2[0] = xor.Byte(y2[0], byte(timeMod))
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if DEBUG {
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fmt.Printf("=== y1 ===\n")
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fmt.Printf(" hash is H = %x\n", s.hash)
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fmt.Printf(" time id is t = %x[%d]\n", timeId, timeId)
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fmt.Printf(" h(t) = %x\n", hashedTimeId)
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fmt.Printf(" time id is t = %x[%d]\n", timeID, timeID)
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fmt.Printf(" h(t) = %x\n", hashedTimeID)
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fmt.Printf(" y1 is H+h(t) = %x\n", y1)
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fmt.Printf(" check y1+h(t) eq H = %x\n", xor.ByteArray(y1, hashedTimeId))
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fmt.Printf(" check y1+h(t) eq H = %x\n", xor.ByteArray(y1, hashedTimeID))
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fmt.Printf(" check y1+H eq h(t) = %x\n", xor.ByteArray(y1, s.hash))
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fmt.Printf("=== y2 ===\n")
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