From 2afbcf4e7d000d99fdbc582d7113684ee00e80cc Mon Sep 17 00:00:00 2001 From: yo mama Date: Fri, 20 Mar 2015 17:33:43 -0700 Subject: first --- node_modules/ws/src/bufferutil.cc | 115 ++++++++++++++++++++++++++++++ node_modules/ws/src/validation.cc | 143 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 258 insertions(+) create mode 100644 node_modules/ws/src/bufferutil.cc create mode 100644 node_modules/ws/src/validation.cc (limited to 'node_modules/ws/src') diff --git a/node_modules/ws/src/bufferutil.cc b/node_modules/ws/src/bufferutil.cc new file mode 100644 index 0000000..866c28b --- /dev/null +++ b/node_modules/ws/src/bufferutil.cc @@ -0,0 +1,115 @@ +/*! + * ws: a node.js websocket client + * Copyright(c) 2011 Einar Otto Stangvik + * MIT Licensed + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace v8; +using namespace node; + +class BufferUtil : public ObjectWrap +{ +public: + + static void Initialize(v8::Handle target) + { + HandleScope scope; + Local t = FunctionTemplate::New(New); + t->InstanceTemplate()->SetInternalFieldCount(1); + NODE_SET_METHOD(t->GetFunction(), "unmask", BufferUtil::Unmask); + NODE_SET_METHOD(t->GetFunction(), "mask", BufferUtil::Mask); + NODE_SET_METHOD(t->GetFunction(), "merge", BufferUtil::Merge); + target->Set(String::NewSymbol("BufferUtil"), t->GetFunction()); + } + +protected: + + static Handle New(const Arguments& args) + { + HandleScope scope; + BufferUtil* bufferUtil = new BufferUtil(); + bufferUtil->Wrap(args.This()); + return args.This(); + } + + static Handle Merge(const Arguments& args) + { + HandleScope scope; + Local bufferObj = args[0]->ToObject(); + char* buffer = Buffer::Data(bufferObj); + Local array = Local::Cast(args[1]); + unsigned int arrayLength = array->Length(); + unsigned int offset = 0; + unsigned int i; + for (i = 0; i < arrayLength; ++i) { + Local src = array->Get(i)->ToObject(); + unsigned int length = Buffer::Length(src); + memcpy(buffer + offset, Buffer::Data(src), length); + offset += length; + } + return scope.Close(True()); + } + + static Handle Unmask(const Arguments& args) + { + HandleScope scope; + Local buffer_obj = args[0]->ToObject(); + unsigned int length = Buffer::Length(buffer_obj); + Local mask_obj = args[1]->ToObject(); + unsigned int *mask = (unsigned int*)Buffer::Data(mask_obj); + unsigned int* from = (unsigned int*)Buffer::Data(buffer_obj); + unsigned int len32 = length / 4; + unsigned int i; + for (i = 0; i < len32; ++i) *(from + i) ^= *mask; + from += i; + switch (length % 4) { + case 3: *((unsigned char*)from+2) = *((unsigned char*)from+2) ^ ((unsigned char*)mask)[2]; + case 2: *((unsigned char*)from+1) = *((unsigned char*)from+1) ^ ((unsigned char*)mask)[1]; + case 1: *((unsigned char*)from ) = *((unsigned char*)from ) ^ ((unsigned char*)mask)[0]; + case 0:; + } + return True(); + } + + static Handle Mask(const Arguments& args) + { + HandleScope scope; + Local buffer_obj = args[0]->ToObject(); + Local mask_obj = args[1]->ToObject(); + unsigned int *mask = (unsigned int*)Buffer::Data(mask_obj); + Local output_obj = args[2]->ToObject(); + unsigned int dataOffset = args[3]->Int32Value(); + unsigned int length = args[4]->Int32Value(); + unsigned int* to = (unsigned int*)(Buffer::Data(output_obj) + dataOffset); + unsigned int* from = (unsigned int*)Buffer::Data(buffer_obj); + unsigned int len32 = length / 4; + unsigned int i; + for (i = 0; i < len32; ++i) *(to + i) = *(from + i) ^ *mask; + to += i; + from += i; + switch (length % 4) { + case 3: *((unsigned char*)to+2) = *((unsigned char*)from+2) ^ *((unsigned char*)mask+2); + case 2: *((unsigned char*)to+1) = *((unsigned char*)from+1) ^ *((unsigned char*)mask+1); + case 1: *((unsigned char*)to ) = *((unsigned char*)from ) ^ *((unsigned char*)mask); + case 0:; + } + return True(); + } +}; + +extern "C" void init (Handle target) +{ + HandleScope scope; + BufferUtil::Initialize(target); +} + +NODE_MODULE(bufferutil, init) diff --git a/node_modules/ws/src/validation.cc b/node_modules/ws/src/validation.cc new file mode 100644 index 0000000..b900164 --- /dev/null +++ b/node_modules/ws/src/validation.cc @@ -0,0 +1,143 @@ +/*! + * ws: a node.js websocket client + * Copyright(c) 2011 Einar Otto Stangvik + * MIT Licensed + */ + +#include +#include +#include +#include +#include +#include +#include + +using namespace v8; +using namespace node; + +#define UNI_SUR_HIGH_START (uint32_t) 0xD800 +#define UNI_SUR_LOW_END (uint32_t) 0xDFFF +#define UNI_REPLACEMENT_CHAR (uint32_t) 0x0000FFFD +#define UNI_MAX_LEGAL_UTF32 (uint32_t) 0x0010FFFF + +static const uint8_t trailingBytesForUTF8[256] = { + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 +}; + +static const uint32_t offsetsFromUTF8[6] = { + 0x00000000, 0x00003080, 0x000E2080, + 0x03C82080, 0xFA082080, 0x82082080 +}; + +static int isLegalUTF8(const uint8_t *source, const int length) +{ + uint8_t a; + const uint8_t *srcptr = source+length; + switch (length) { + default: return 0; + /* Everything else falls through when "true"... */ + /* RFC3629 makes 5 & 6 bytes UTF-8 illegal + case 6: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return 0; + case 5: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return 0; */ + case 4: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return 0; + case 3: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return 0; + case 2: if ((a = (*--srcptr)) > 0xBF) return 0; + switch (*source) { + /* no fall-through in this inner switch */ + case 0xE0: if (a < 0xA0) return 0; break; + case 0xED: if (a > 0x9F) return 0; break; + case 0xF0: if (a < 0x90) return 0; break; + case 0xF4: if (a > 0x8F) return 0; break; + default: if (a < 0x80) return 0; + } + + case 1: if (*source >= 0x80 && *source < 0xC2) return 0; + } + if (*source > 0xF4) return 0; + return 1; +} + +int is_valid_utf8 (size_t len, char *value) +{ + /* is the string valid UTF-8? */ + for (unsigned int i = 0; i < len; i++) { + uint32_t ch = 0; + uint8_t extrabytes = trailingBytesForUTF8[(uint8_t) value[i]]; + + if (extrabytes + i >= len) + return 0; + + if (isLegalUTF8 ((uint8_t *) (value + i), extrabytes + 1) == 0) return 0; + + switch (extrabytes) { + case 5 : ch += (uint8_t) value[i++]; ch <<= 6; + case 4 : ch += (uint8_t) value[i++]; ch <<= 6; + case 3 : ch += (uint8_t) value[i++]; ch <<= 6; + case 2 : ch += (uint8_t) value[i++]; ch <<= 6; + case 1 : ch += (uint8_t) value[i++]; ch <<= 6; + case 0 : ch += (uint8_t) value[i]; + } + + ch -= offsetsFromUTF8[extrabytes]; + + if (ch <= UNI_MAX_LEGAL_UTF32) { + if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) + return 0; + } else { + return 0; + } + } + + return 1; +} + +class Validation : public ObjectWrap +{ +public: + + static void Initialize(v8::Handle target) + { + HandleScope scope; + Local t = FunctionTemplate::New(New); + t->InstanceTemplate()->SetInternalFieldCount(1); + NODE_SET_METHOD(t->GetFunction(), "isValidUTF8", Validation::IsValidUTF8); + target->Set(String::NewSymbol("Validation"), t->GetFunction()); + } + +protected: + + static Handle New(const Arguments& args) + { + HandleScope scope; + Validation* validation = new Validation(); + validation->Wrap(args.This()); + return args.This(); + } + + static Handle IsValidUTF8(const Arguments& args) + { + HandleScope scope; + if (!Buffer::HasInstance(args[0])) { + return ThrowException(Exception::Error(String::New("First argument needs to be a buffer"))); + } + Local buffer_obj = args[0]->ToObject(); + char *buffer_data = Buffer::Data(buffer_obj); + size_t buffer_length = Buffer::Length(buffer_obj); + return is_valid_utf8(buffer_length, buffer_data) == 1 ? scope.Close(True()) : scope.Close(False()); + } +}; + +extern "C" void init (Handle target) +{ + HandleScope scope; + Validation::Initialize(target); +} + +NODE_MODULE(validation, init) -- cgit v1.2.3-70-g09d2