88 lines
2.7 KiB
Plaintext
88 lines
2.7 KiB
Plaintext
/*
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文件名:MD5Class.nut
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路径:Dps_A/BaseClass/MD5Class/MD5Class.nut
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创建日期:2024-09-20 00:06
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文件用途:MD5类
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*/
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class MD5 {
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MD5_Init_ptr = Module.getExportByName(null, "MD5_Init");
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MD5_Update_ptr = Module.getExportByName(null, "MD5_Update");
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MD5_Final_ptr = Module.getExportByName(null, "MD5_Final");
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function MD5_Init(Ctx) {
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Sq_CallFunc(MD5_Init_ptr, "void", ["pointer"], Ctx);
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}
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function MD5_Update(Ctx, Buffer, Size) {
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Sq_CallFunc(MD5_Update_ptr, "void", ["pointer", "pointer", "int"], Ctx, Buffer, Size);
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}
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function MD5_Final(Ctx, Result) {
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Sq_CallFunc(MD5_Final_ptr, "void", ["pointer", "pointer"], Ctx, Result);
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}
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function base64_encode(input) {
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local base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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local inputLength = input.len();
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local i = 0;
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local j = 0;
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local charArray3 = array(3);
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local charArray4 = array(4);
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local encoded = "";
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while (inputLength--) {
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charArray3[i++] = input[inputLength];
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if (i == 3) {
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charArray4[0] = (charArray3[0] & 0xfc) >> 2;
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charArray4[1] = ((charArray3[0] & 0x03) << 4) + ((charArray3[1] & 0xf0) >> 4);
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charArray4[2] = ((charArray3[1] & 0x0f) << 2) + ((charArray3[2] & 0xc0) >> 6);
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charArray4[3] = charArray3[2] & 0x3f;
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for (i = 0; i< 4; i++) {
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encoded += base64_chars[charArray4[i]];
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}
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i = 0;
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}
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}
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if (i) {
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for (j = i; j< 3; j++) {
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charArray3[j] = 0;
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}
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charArray4[0] = (charArray3[0] & 0xfc) >> 2;
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charArray4[1] = ((charArray3[0] & 0x03) << 4) + ((charArray3[1] & 0xf0) >> 4);
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charArray4[2] = ((charArray3[1] & 0x0f) << 2) + ((charArray3[2] & 0xc0) >> 6);
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charArray4[3] = charArray3[2] & 0x3f;
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for (j = 0; j< i + 1; j++) {
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encoded += base64_chars[charArray4[j]];
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}
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while (i++<3) {
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encoded += "=";
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}
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}
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return encoded;
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}
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function GetFile(FileName) {
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local Io = IO(FileName, "r+");
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local Ctx = Memory.alloc(0x100);
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MD5.MD5_Init(Ctx.C_Object);
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while (true) {
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local Buffer = Memory.alloc(0x1000);
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local Res = Io.ReadBuffer(0x1000);
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if (Res.count == 0) break;
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MD5.MD5_Update(Ctx.C_Object, Memory.allocUtf8String(Res.str).C_Object, Res.count);
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}
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local Result = Memory.alloc(16);
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MD5.MD5_Final(Result.C_Object, Ctx.C_Object);
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Io.Close();
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return base64_encode(Result.readUtf8String(16));
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}
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} |