mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-10-31 16:12:24 -05:00
5c96702cb5Bumps [github.com/gin-contrib/gzip](https://github.com/gin-contrib/gzip) from 1.1.0 to 1.2.2. - [Release notes](https://github.com/gin-contrib/gzip/releases) - [Changelog](https://github.com/gin-contrib/gzip/blob/master/.goreleaser.yaml) - [Commits](https://github.com/gin-contrib/gzip/compare/v1.1.0...v1.2.2) --- updated-dependencies: - dependency-name: github.com/gin-contrib/gzip dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
562 lines
14 KiB
Go
562 lines
14 KiB
Go
/*
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* Copyright 2022 ByteDance Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ast
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import (
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"encoding/base64"
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"runtime"
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"strconv"
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"unsafe"
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"github.com/bytedance/sonic/internal/native/types"
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"github.com/bytedance/sonic/internal/rt"
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"github.com/bytedance/sonic/internal/utils"
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)
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// Hack: this is used for both checking space and cause friendly compile errors in 32-bit arch.
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const _Sonic_Not_Support_32Bit_Arch__Checking_32Bit_Arch_Here = (1 << ' ') | (1 << '\t') | (1 << '\r') | (1 << '\n')
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var bytesNull = []byte("null")
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const (
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strNull = "null"
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bytesTrue = "true"
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bytesFalse = "false"
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bytesObject = "{}"
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bytesArray = "[]"
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)
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func isSpace(c byte) bool {
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return (int(1<<c) & _Sonic_Not_Support_32Bit_Arch__Checking_32Bit_Arch_Here) != 0
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}
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//go:nocheckptr
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func skipBlank(src string, pos int) int {
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se := uintptr(rt.IndexChar(src, len(src)))
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sp := uintptr(rt.IndexChar(src, pos))
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for sp < se {
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if !isSpace(*(*byte)(unsafe.Pointer(sp))) {
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break
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}
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sp += 1
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}
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if sp >= se {
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return -int(types.ERR_EOF)
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}
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runtime.KeepAlive(src)
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return int(sp - uintptr(rt.IndexChar(src, 0)))
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}
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func decodeNull(src string, pos int) (ret int) {
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ret = pos + 4
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if ret > len(src) {
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return -int(types.ERR_EOF)
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}
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if src[pos:ret] == strNull {
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return ret
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} else {
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return -int(types.ERR_INVALID_CHAR)
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}
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}
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func decodeTrue(src string, pos int) (ret int) {
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ret = pos + 4
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if ret > len(src) {
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return -int(types.ERR_EOF)
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}
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if src[pos:ret] == bytesTrue {
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return ret
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} else {
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return -int(types.ERR_INVALID_CHAR)
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}
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}
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func decodeFalse(src string, pos int) (ret int) {
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ret = pos + 5
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if ret > len(src) {
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return -int(types.ERR_EOF)
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}
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if src[pos:ret] == bytesFalse {
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return ret
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}
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return -int(types.ERR_INVALID_CHAR)
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}
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//go:nocheckptr
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func decodeString(src string, pos int) (ret int, v string) {
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ret, ep := skipString(src, pos)
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if ep == -1 {
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(*rt.GoString)(unsafe.Pointer(&v)).Ptr = rt.IndexChar(src, pos+1)
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(*rt.GoString)(unsafe.Pointer(&v)).Len = ret - pos - 2
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return ret, v
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}
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vv, ok := unquoteBytes(rt.Str2Mem(src[pos:ret]))
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if !ok {
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return -int(types.ERR_INVALID_CHAR), ""
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}
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runtime.KeepAlive(src)
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return ret, rt.Mem2Str(vv)
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}
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func decodeBinary(src string, pos int) (ret int, v []byte) {
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var vv string
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ret, vv = decodeString(src, pos)
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if ret < 0 {
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return ret, nil
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}
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var err error
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v, err = base64.StdEncoding.DecodeString(vv)
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if err != nil {
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return -int(types.ERR_INVALID_CHAR), nil
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}
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return ret, v
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}
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func isDigit(c byte) bool {
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return c >= '0' && c <= '9'
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}
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//go:nocheckptr
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func decodeInt64(src string, pos int) (ret int, v int64, err error) {
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sp := uintptr(rt.IndexChar(src, pos))
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ss := uintptr(sp)
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se := uintptr(rt.IndexChar(src, len(src)))
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if uintptr(sp) >= se {
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return -int(types.ERR_EOF), 0, nil
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}
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if c := *(*byte)(unsafe.Pointer(sp)); c == '-' {
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sp += 1
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}
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if sp == se {
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return -int(types.ERR_EOF), 0, nil
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}
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for ; sp < se; sp += uintptr(1) {
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if !isDigit(*(*byte)(unsafe.Pointer(sp))) {
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break
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}
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}
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if sp < se {
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if c := *(*byte)(unsafe.Pointer(sp)); c == '.' || c == 'e' || c == 'E' {
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return -int(types.ERR_INVALID_NUMBER_FMT), 0, nil
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}
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}
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var vv string
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ret = int(uintptr(sp) - uintptr((*rt.GoString)(unsafe.Pointer(&src)).Ptr))
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(*rt.GoString)(unsafe.Pointer(&vv)).Ptr = unsafe.Pointer(ss)
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(*rt.GoString)(unsafe.Pointer(&vv)).Len = ret - pos
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v, err = strconv.ParseInt(vv, 10, 64)
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if err != nil {
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//NOTICE: allow overflow here
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if err.(*strconv.NumError).Err == strconv.ErrRange {
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return ret, 0, err
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}
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return -int(types.ERR_INVALID_CHAR), 0, err
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}
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runtime.KeepAlive(src)
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return ret, v, nil
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}
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func isNumberChars(c byte) bool {
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return (c >= '0' && c <= '9') || c == '+' || c == '-' || c == 'e' || c == 'E' || c == '.'
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}
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//go:nocheckptr
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func decodeFloat64(src string, pos int) (ret int, v float64, err error) {
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sp := uintptr(rt.IndexChar(src, pos))
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ss := uintptr(sp)
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se := uintptr(rt.IndexChar(src, len(src)))
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if uintptr(sp) >= se {
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return -int(types.ERR_EOF), 0, nil
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}
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if c := *(*byte)(unsafe.Pointer(sp)); c == '-' {
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sp += 1
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}
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if sp == se {
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return -int(types.ERR_EOF), 0, nil
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}
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for ; sp < se; sp += uintptr(1) {
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if !isNumberChars(*(*byte)(unsafe.Pointer(sp))) {
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break
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}
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}
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var vv string
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ret = int(uintptr(sp) - uintptr((*rt.GoString)(unsafe.Pointer(&src)).Ptr))
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(*rt.GoString)(unsafe.Pointer(&vv)).Ptr = unsafe.Pointer(ss)
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(*rt.GoString)(unsafe.Pointer(&vv)).Len = ret - pos
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v, err = strconv.ParseFloat(vv, 64)
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if err != nil {
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//NOTICE: allow overflow here
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if err.(*strconv.NumError).Err == strconv.ErrRange {
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return ret, 0, err
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}
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return -int(types.ERR_INVALID_CHAR), 0, err
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}
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runtime.KeepAlive(src)
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return ret, v, nil
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}
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func decodeValue(src string, pos int, skipnum bool) (ret int, v types.JsonState) {
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, types.JsonState{Vt: types.ValueType(pos)}
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}
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switch c := src[pos]; c {
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case 'n':
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ret = decodeNull(src, pos)
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if ret < 0 {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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return ret, types.JsonState{Vt: types.V_NULL}
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case '"':
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var ep int
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ret, ep = skipString(src, pos)
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if ret < 0 {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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return ret, types.JsonState{Vt: types.V_STRING, Iv: int64(pos + 1), Ep: ep}
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case '{':
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return pos + 1, types.JsonState{Vt: types.V_OBJECT}
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case '[':
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return pos + 1, types.JsonState{Vt: types.V_ARRAY}
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case 't':
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ret = decodeTrue(src, pos)
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if ret < 0 {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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return ret, types.JsonState{Vt: types.V_TRUE}
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case 'f':
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ret = decodeFalse(src, pos)
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if ret < 0 {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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return ret, types.JsonState{Vt: types.V_FALSE}
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case '-', '+', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
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if skipnum {
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ret = skipNumber(src, pos)
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if ret >= 0 {
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return ret, types.JsonState{Vt: types.V_DOUBLE, Iv: 0, Ep: pos}
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} else {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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} else {
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var iv int64
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ret, iv, _ = decodeInt64(src, pos)
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if ret >= 0 {
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return ret, types.JsonState{Vt: types.V_INTEGER, Iv: iv, Ep: pos}
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} else if ret != -int(types.ERR_INVALID_NUMBER_FMT) {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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var fv float64
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ret, fv, _ = decodeFloat64(src, pos)
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if ret >= 0 {
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return ret, types.JsonState{Vt: types.V_DOUBLE, Dv: fv, Ep: pos}
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} else {
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return ret, types.JsonState{Vt: types.ValueType(ret)}
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}
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}
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default:
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return -int(types.ERR_INVALID_CHAR), types.JsonState{Vt:-types.ValueType(types.ERR_INVALID_CHAR)}
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}
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}
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//go:nocheckptr
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func skipNumber(src string, pos int) (ret int) {
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return utils.SkipNumber(src, pos)
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}
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//go:nocheckptr
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func skipString(src string, pos int) (ret int, ep int) {
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if pos+1 >= len(src) {
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return -int(types.ERR_EOF), -1
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}
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sp := uintptr(rt.IndexChar(src, pos))
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se := uintptr(rt.IndexChar(src, len(src)))
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// not start with quote
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if *(*byte)(unsafe.Pointer(sp)) != '"' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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sp += 1
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ep = -1
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for sp < se {
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c := *(*byte)(unsafe.Pointer(sp))
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if c == '\\' {
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if ep == -1 {
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ep = int(uintptr(sp) - uintptr((*rt.GoString)(unsafe.Pointer(&src)).Ptr))
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}
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sp += 2
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continue
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}
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sp += 1
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if c == '"' {
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return int(uintptr(sp) - uintptr((*rt.GoString)(unsafe.Pointer(&src)).Ptr)), ep
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}
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}
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runtime.KeepAlive(src)
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// not found the closed quote until EOF
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return -int(types.ERR_EOF), -1
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}
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//go:nocheckptr
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func skipPair(src string, pos int, lchar byte, rchar byte) (ret int) {
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if pos+1 >= len(src) {
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return -int(types.ERR_EOF)
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}
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sp := uintptr(rt.IndexChar(src, pos))
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se := uintptr(rt.IndexChar(src, len(src)))
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if *(*byte)(unsafe.Pointer(sp)) != lchar {
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return -int(types.ERR_INVALID_CHAR)
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}
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sp += 1
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nbrace := 1
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inquote := false
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for sp < se {
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c := *(*byte)(unsafe.Pointer(sp))
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if c == '\\' {
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sp += 2
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continue
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} else if c == '"' {
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inquote = !inquote
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} else if c == lchar {
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if !inquote {
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nbrace += 1
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}
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} else if c == rchar {
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if !inquote {
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nbrace -= 1
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if nbrace == 0 {
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sp += 1
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break
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}
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}
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}
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sp += 1
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}
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if nbrace != 0 {
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return -int(types.ERR_INVALID_CHAR)
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}
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runtime.KeepAlive(src)
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return int(uintptr(sp) - uintptr((*rt.GoString)(unsafe.Pointer(&src)).Ptr))
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}
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func skipValueFast(src string, pos int) (ret int, start int) {
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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switch c := src[pos]; c {
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case 'n':
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ret = decodeNull(src, pos)
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case '"':
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ret, _ = skipString(src, pos)
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case '{':
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ret = skipPair(src, pos, '{', '}')
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case '[':
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ret = skipPair(src, pos, '[', ']')
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case 't':
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ret = decodeTrue(src, pos)
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case 'f':
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ret = decodeFalse(src, pos)
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case '-', '+', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
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ret = skipNumber(src, pos)
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default:
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ret = -int(types.ERR_INVALID_CHAR)
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}
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return ret, pos
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}
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func skipValue(src string, pos int) (ret int, start int) {
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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switch c := src[pos]; c {
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case 'n':
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ret = decodeNull(src, pos)
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case '"':
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ret, _ = skipString(src, pos)
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case '{':
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ret, _ = skipObject(src, pos)
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case '[':
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ret, _ = skipArray(src, pos)
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case 't':
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ret = decodeTrue(src, pos)
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case 'f':
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ret = decodeFalse(src, pos)
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case '-', '+', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
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ret = skipNumber(src, pos)
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default:
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ret = -int(types.ERR_INVALID_CHAR)
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}
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return ret, pos
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}
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func skipObject(src string, pos int) (ret int, start int) {
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start = skipBlank(src, pos)
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if start < 0 {
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return start, -1
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}
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if src[start] != '{' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos = start + 1
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == '}' {
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return pos + 1, start
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}
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for {
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pos, _ = skipString(src, pos)
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if pos < 0 {
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return pos, -1
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}
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] != ':' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos++
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pos, _ = skipValue(src, pos)
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if pos < 0 {
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return pos, -1
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}
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == '}' {
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return pos + 1, start
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}
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if src[pos] != ',' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos++
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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}
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}
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func skipArray(src string, pos int) (ret int, start int) {
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start = skipBlank(src, pos)
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if start < 0 {
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return start, -1
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}
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if src[start] != '[' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos = start + 1
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == ']' {
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return pos + 1, start
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}
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for {
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pos, _ = skipValue(src, pos)
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if pos < 0 {
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return pos, -1
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}
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pos = skipBlank(src, pos)
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if pos < 0 {
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return pos, -1
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}
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if src[pos] == ']' {
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return pos + 1, start
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}
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if src[pos] != ',' {
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return -int(types.ERR_INVALID_CHAR), -1
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}
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pos++
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}
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}
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|
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// DecodeString decodes a JSON string from pos and return golang string.
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// - needEsc indicates if to unescaped escaping chars
|
|
// - hasEsc tells if the returned string has escaping chars
|
|
// - validStr enables validating UTF8 charset
|
|
//
|
|
func _DecodeString(src string, pos int, needEsc bool, validStr bool) (v string, ret int, hasEsc bool) {
|
|
p := NewParserObj(src)
|
|
p.p = pos
|
|
switch val := p.decodeValue(); val.Vt {
|
|
case types.V_STRING:
|
|
str := p.s[val.Iv : p.p-1]
|
|
if validStr && !validate_utf8(str) {
|
|
return "", -int(types.ERR_INVALID_UTF8), false
|
|
}
|
|
/* fast path: no escape sequence */
|
|
if val.Ep == -1 {
|
|
return str, p.p, false
|
|
} else if !needEsc {
|
|
return str, p.p, true
|
|
}
|
|
/* unquote the string */
|
|
out, err := unquote(str)
|
|
/* check for errors */
|
|
if err != 0 {
|
|
return "", -int(err), true
|
|
} else {
|
|
return out, p.p, true
|
|
}
|
|
default:
|
|
return "", -int(_ERR_UNSUPPORT_TYPE), false
|
|
}
|
|
}
|