X-Git-Url: https://git.josue.xyz/?p=VSoRC%2F.git;a=blobdiff_plain;f=node_modules%2Fwebsocket%2Fnode_modules%2Fnan%2Fnan_string_bytes.h;fp=node_modules%2Fwebsocket%2Fnode_modules%2Fnan%2Fnan_string_bytes.h;h=0000000000000000000000000000000000000000;hp=a2e6437d12b74cd29fad17ed6c40e1e739eded2c;hb=5e96dd57ddd883604e87f62bdddcb111c63a6e1a;hpb=acb5f682a2b75b972710cabd81658f63071324b0 diff --git a/node_modules/websocket/node_modules/nan/nan_string_bytes.h b/node_modules/websocket/node_modules/nan/nan_string_bytes.h deleted file mode 100644 index a2e6437..0000000 --- a/node_modules/websocket/node_modules/nan/nan_string_bytes.h +++ /dev/null @@ -1,305 +0,0 @@ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -#ifndef NAN_STRING_BYTES_H_ -#define NAN_STRING_BYTES_H_ - -// Decodes a v8::Local or Buffer to a raw char* - -namespace imp { - -using v8::Local; -using v8::Object; -using v8::String; -using v8::Value; - - -//// Base 64 //// - -#define base64_encoded_size(size) ((size + 2 - ((size + 2) % 3)) / 3 * 4) - - - -//// HEX //// - -static bool contains_non_ascii_slow(const char* buf, size_t len) { - for (size_t i = 0; i < len; ++i) { - if (buf[i] & 0x80) return true; - } - return false; -} - - -static bool contains_non_ascii(const char* src, size_t len) { - if (len < 16) { - return contains_non_ascii_slow(src, len); - } - - const unsigned bytes_per_word = sizeof(void*); - const unsigned align_mask = bytes_per_word - 1; - const unsigned unaligned = reinterpret_cast(src) & align_mask; - - if (unaligned > 0) { - const unsigned n = bytes_per_word - unaligned; - if (contains_non_ascii_slow(src, n)) return true; - src += n; - len -= n; - } - - -#if defined(__x86_64__) || defined(_WIN64) - const uintptr_t mask = 0x8080808080808080ll; -#else - const uintptr_t mask = 0x80808080l; -#endif - - const uintptr_t* srcw = reinterpret_cast(src); - - for (size_t i = 0, n = len / bytes_per_word; i < n; ++i) { - if (srcw[i] & mask) return true; - } - - const unsigned remainder = len & align_mask; - if (remainder > 0) { - const size_t offset = len - remainder; - if (contains_non_ascii_slow(src + offset, remainder)) return true; - } - - return false; -} - - -static void force_ascii_slow(const char* src, char* dst, size_t len) { - for (size_t i = 0; i < len; ++i) { - dst[i] = src[i] & 0x7f; - } -} - - -static void force_ascii(const char* src, char* dst, size_t len) { - if (len < 16) { - force_ascii_slow(src, dst, len); - return; - } - - const unsigned bytes_per_word = sizeof(void*); - const unsigned align_mask = bytes_per_word - 1; - const unsigned src_unalign = reinterpret_cast(src) & align_mask; - const unsigned dst_unalign = reinterpret_cast(dst) & align_mask; - - if (src_unalign > 0) { - if (src_unalign == dst_unalign) { - const unsigned unalign = bytes_per_word - src_unalign; - force_ascii_slow(src, dst, unalign); - src += unalign; - dst += unalign; - len -= src_unalign; - } else { - force_ascii_slow(src, dst, len); - return; - } - } - -#if defined(__x86_64__) || defined(_WIN64) - const uintptr_t mask = ~0x8080808080808080ll; -#else - const uintptr_t mask = ~0x80808080l; -#endif - - const uintptr_t* srcw = reinterpret_cast(src); - uintptr_t* dstw = reinterpret_cast(dst); - - for (size_t i = 0, n = len / bytes_per_word; i < n; ++i) { - dstw[i] = srcw[i] & mask; - } - - const unsigned remainder = len & align_mask; - if (remainder > 0) { - const size_t offset = len - remainder; - force_ascii_slow(src + offset, dst + offset, remainder); - } -} - - -static size_t base64_encode(const char* src, - size_t slen, - char* dst, - size_t dlen) { - // We know how much we'll write, just make sure that there's space. - assert(dlen >= base64_encoded_size(slen) && - "not enough space provided for base64 encode"); - - dlen = base64_encoded_size(slen); - - unsigned a; - unsigned b; - unsigned c; - unsigned i; - unsigned k; - unsigned n; - - static const char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" - "abcdefghijklmnopqrstuvwxyz" - "0123456789+/"; - - i = 0; - k = 0; - n = slen / 3 * 3; - - while (i < n) { - a = src[i + 0] & 0xff; - b = src[i + 1] & 0xff; - c = src[i + 2] & 0xff; - - dst[k + 0] = table[a >> 2]; - dst[k + 1] = table[((a & 3) << 4) | (b >> 4)]; - dst[k + 2] = table[((b & 0x0f) << 2) | (c >> 6)]; - dst[k + 3] = table[c & 0x3f]; - - i += 3; - k += 4; - } - - if (n != slen) { - switch (slen - n) { - case 1: - a = src[i + 0] & 0xff; - dst[k + 0] = table[a >> 2]; - dst[k + 1] = table[(a & 3) << 4]; - dst[k + 2] = '='; - dst[k + 3] = '='; - break; - - case 2: - a = src[i + 0] & 0xff; - b = src[i + 1] & 0xff; - dst[k + 0] = table[a >> 2]; - dst[k + 1] = table[((a & 3) << 4) | (b >> 4)]; - dst[k + 2] = table[(b & 0x0f) << 2]; - dst[k + 3] = '='; - break; - } - } - - return dlen; -} - - -static size_t hex_encode(const char* src, size_t slen, char* dst, size_t dlen) { - // We know how much we'll write, just make sure that there's space. - assert(dlen >= slen * 2 && - "not enough space provided for hex encode"); - - dlen = slen * 2; - for (uint32_t i = 0, k = 0; k < dlen; i += 1, k += 2) { - static const char hex[] = "0123456789abcdef"; - uint8_t val = static_cast(src[i]); - dst[k + 0] = hex[val >> 4]; - dst[k + 1] = hex[val & 15]; - } - - return dlen; -} - - - -static Local Encode(const char* buf, - size_t buflen, - enum Encoding encoding) { - assert(buflen <= node::Buffer::kMaxLength); - if (!buflen && encoding != BUFFER) - return New("").ToLocalChecked(); - - Local val; - switch (encoding) { - case BUFFER: - return CopyBuffer(buf, buflen).ToLocalChecked(); - - case ASCII: - if (contains_non_ascii(buf, buflen)) { - char* out = new char[buflen]; - force_ascii(buf, out, buflen); - val = New(out, buflen).ToLocalChecked(); - delete[] out; - } else { - val = New(buf, buflen).ToLocalChecked(); - } - break; - - case UTF8: - val = New(buf, buflen).ToLocalChecked(); - break; - - case BINARY: { - // TODO(isaacs) use ExternalTwoByteString? - const unsigned char *cbuf = reinterpret_cast(buf); - uint16_t * twobytebuf = new uint16_t[buflen]; - for (size_t i = 0; i < buflen; i++) { - // XXX is the following line platform independent? - twobytebuf[i] = cbuf[i]; - } - val = New(twobytebuf, buflen).ToLocalChecked(); - delete[] twobytebuf; - break; - } - - case BASE64: { - size_t dlen = base64_encoded_size(buflen); - char* dst = new char[dlen]; - - size_t written = base64_encode(buf, buflen, dst, dlen); - assert(written == dlen); - - val = New(dst, dlen).ToLocalChecked(); - delete[] dst; - break; - } - - case UCS2: { - const uint16_t* data = reinterpret_cast(buf); - val = New(data, buflen / 2).ToLocalChecked(); - break; - } - - case HEX: { - size_t dlen = buflen * 2; - char* dst = new char[dlen]; - size_t written = hex_encode(buf, buflen, dst, dlen); - assert(written == dlen); - - val = New(dst, dlen).ToLocalChecked(); - delete[] dst; - break; - } - - default: - assert(0 && "unknown encoding"); - break; - } - - return val; -} - -#undef base64_encoded_size - -} // end of namespace imp - -#endif // NAN_STRING_BYTES_H_