\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728\u524d\u9762\u7684\u6587\u7ae0\u4e2d，\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86 \u670d\u52a1\u7aef\u642d\u5efa \u7684\u642d\u5efa\u3002\u5728\u6784\u5efa HTTP \u670d\u52a1\u5668\u7684\u8fc7\u7a0b\u4e2d，\u603b\u4f1a\u9047\u5230\u8bb8\u591a\u7ec6\u5c0f\u4f46\u9ad8\u9891\u7684\u64cd\u4f5c：\u6bd4\u5982\u628a URL \u91cc\u7684\u7279\u6b8a\u7b26\u53f7\u7f16\u7801\u3001\u89e3\u7801，\u4ece\u6587\u4ef6\u540e\u7f00\u540d\u63a8\u65ad MIME \u7c7b\u578b，\u5224\u65ad\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u8def\u5f84\u662f\u5426\u5b89\u5168\u7b49\u3002\u5982\u679c\u628a\u8fd9\u4e9b\u903b\u8f91\u96f6\u6563\u5730\u5199\u5728\u5404\u4e2a\u6a21\u5757\u91cc，\u4ee3\u7801\u4f1a\u53d8\u5f97\u96be\u4ee5\u7ef4\u62a4\u3002\u56e0\u6b64，\u6211\u4eec\u4e13\u95e8\u62bd\u51fa\u4e00\u4e2a\u5de5\u5177\u7c7b Util ，\u7528\u9759\u6001\u65b9\u6cd5\u7684\u5f62\u5f0f\u63d0\u4f9b\u8fd9\u4e9b\u901a\u7528\u80fd\u529b\u3002<\/p>\n
\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u00a0Util \u7684\u5b9e\u73b0\u601d\u8def\u3001\u63a5\u53e3\u8bbe\u8ba1\u3001\u6280\u672f\u9009\u578b\u4ee5\u53ca\u5b8c\u6574\u7684\u4ee3\u7801\u5b9e\u73b0，\u4e3a\u540e\u7eed\u7684 HTTP \u670d\u52a1\u5668\u7ec4\u88c5\u505a\u597d\u6700\u540e\u7684\u5de5\u5177\u51c6\u5907\u3002<\/p>\n
Util \u5de5\u5177\u7c7b\u4e3a\u6574\u4e2a HTTP \u670d\u52a1\u5668\u63d0\u4f9b\u4e00\u7ec4\u65e0\u72b6\u6001\u7684\u3001\u901a\u7528\u7684\u9759\u6001\u5de5\u5177\u51fd\u6570，\u4e3b\u8981\u7528\u4e8e：<\/p>\n
\u5b57\u7b26\u4e32\u5206\u5272：\u6309\u6307\u5b9a\u5206\u9694\u7b26\u62c6\u5206\u5b57\u7b26\u4e32，\u7528\u4e8e\u89e3\u6790 URL \u8def\u5f84\u3001HTTP \u5934\u90e8\u7b49\u3002<\/p>\n<\/li>\n
\u6587\u4ef6\u8bfb\u5199：\u4ee5\u4e8c\u8fdb\u5236\u65b9\u5f0f\u9ad8\u6548\u8bfb\u53d6 \/ \u5199\u5165\u6587\u4ef6\u5185\u5bb9，\u7528\u4e8e\u54cd\u5e94\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u3002<\/p>\n<\/li>\n
URL \u7f16\u89e3\u7801：\u5904\u7406\u6d4f\u89c8\u5668\u8bf7\u6c42\u4e2d\u7279\u6b8a\u5b57\u7b26\u7684\u8f6c\u4e49，\u907f\u514d\u6b67\u4e49\u3002<\/p>\n<\/li>\n
HTTP \u72b6\u6001\u7801\u4e0e MIME \u6620\u5c04：\u6839\u636e\u72b6\u6001\u7801\u5f97\u5230\u63cf\u8ff0\u4fe1\u606f，\u6839\u636e\u6587\u4ef6\u540d\u540e\u7f00\u5f97\u5230 Content-Type\u3002<\/p>\n<\/li>\n
\u6587\u4ef6\u5c5e\u6027\u5224\u65ad：\u5224\u65ad\u4e00\u4e2a\u8def\u5f84\u662f\u666e\u901a\u6587\u4ef6\u8fd8\u662f\u76ee\u5f55，\u7528\u4e8e\u5b9e\u73b0\u9759\u6001\u8d44\u6e90\u76ee\u5f55\u7d22\u5f15\u3002<\/p>\n<\/li>\n
\u8def\u5f84\u5b89\u5168\u6027\u6821\u9a8c：\u9632\u6b62\u5ba2\u6237\u7aef\u901a\u8fc7\u00a0..\/\u00a0\u7b49\u65b9\u5f0f\u8bbf\u95ee\u670d\u52a1\u5668\u6839\u76ee\u5f55\u4e4b\u5916\u7684\u654f\u611f\u6587\u4ef6\u3002<\/p>\n<\/li>\n<\/ul>\n
\u8fd9\u4e9b\u5de5\u5177\u51fd\u6570\u5f7c\u6b64\u72ec\u7acb，\u4e0d\u4f9d\u8d56\u5916\u90e8\u5bf9\u8c61，\u975e\u5e38\u9002\u5408\u4f5c\u4e3a\u9759\u6001\u65b9\u6cd5\u653e\u5728\u4e00\u4e2a\u5de5\u5177\u7c7b\u4e2d\u3002<\/p>\n
\u5bb9\u5668\u4e0e\u57fa\u7840\u5e93：\u5168\u90e8\u4f7f\u7528 C++ \u6807\u51c6\u5e93，\u907f\u514d\u5f15\u5165\u7b2c\u4e09\u65b9\u4f9d\u8d56\u3002<\/p>\n<\/li>\n
\u6587\u4ef6\u64cd\u4f5c：\u4f7f\u7528\u00a0std::ifstream \/ std::ofstream \u4ee5\u4e8c\u8fdb\u5236\u65b9\u5f0f\u64cd\u4f5c，\u907f\u514d\u6587\u672c\u6a21\u5f0f\u4e0b\u6362\u884c\u7b26\u8f6c\u6362\u7b49\u95ee\u9898\u3002<\/p>\n<\/li>\n
URL \u7f16\u89e3\u7801：\u4e25\u683c\u6309\u7167 RFC 3986 \u89c4\u8303\u5b9e\u73b0，\u5c06\u975e\u4fdd\u7559\u5b57\u7b26\u8f6c\u4e3a\u00a0%HH\u00a0\u683c\u5f0f，\u540c\u65f6\u517c\u5bb9 W3C \u6807\u51c6\u4e2d\u00a0+\u00a0\u4e0e\u7a7a\u683c\u7684\u8f6c\u6362\u3002<\/p>\n<\/li>\n
\u6620\u5c04\u8868：\u4f7f\u7528 std::unordered_map\u00a0\u5b58\u50a8 HTTP \u72b6\u6001\u7801\u63cf\u8ff0\u548c MIME \u7c7b\u578b\u6620\u5c04，\u67e5\u8be2\u5e73\u5747 O(1) \u6548\u7387，\u4ee3\u7801\u6e05\u6670\u6613\u6269\u5c55\u3002<\/p>\n<\/li>\n
\u8def\u5f84\u9a8c\u8bc1：\u57fa\u4e8e\u76f8\u5bf9\u6839\u76ee\u5f55\u601d\u60f3，\u901a\u8fc7\u89e3\u6790\u8def\u5f84\u4e2d\u00a0..\u00a0\u7684\u5c42\u7ea7，\u4fdd\u8bc1\u5ba2\u6237\u7aef\u65e0\u6cd5\u8df3\u51fa\u6839\u76ee\u5f55\u3002<\/p>\n<\/li>\n<\/ul>\n
Util \u7c7b\u4e0d\u9700\u8981\u5b9e\u4f8b\u5316，\u6240\u6709\u6210\u5458\u5747\u4e3a\u9759\u6001\u65b9\u6cd5，\u4e3b\u8981\u5305\u542b：<\/p>\n
\u4e24\u4e2a\u5168\u5c40\u7684\u00a0std::unordered_map ：<\/p>\n
_status_msg：\u72b6\u6001\u7801 \u2192 \u72b6\u6001\u63cf\u8ff0\u7684\u6620\u5c04（\u5982 200 \u2192 "OK"）\u3002<\/p>\n<\/li>\n
_mime_msg：\u6587\u4ef6\u540e\u7f00 \u2192 MIME \u7c7b\u578b\u6620\u5c04（\u5982 ".html" \u2192 "text\/html"）\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
\u9759\u6001\u65b9\u6cd5\u63a5\u53e3：<\/p>\n
\u5b57\u7b26\u4e32\u5206\u5272：Split()<\/p>\n<\/li>\n
\u6587\u4ef6\u8bfb\u5199：ReadFile()\u3001WriteFile()<\/p>\n<\/li>\n
URL \u7f16\u89e3\u7801：UrlEncode()\u3001UrlDecode()\u00a0\u4e0e\u8f85\u52a9\u51fd\u6570HEXTOI()<\/p>\n<\/li>\n
\u72b6\u6001\u7801\u63cf\u8ff0：StatusDesc()<\/p>\n<\/li>\n
MIME \u7c7b\u578b\u83b7\u53d6：ExtMime()<\/p>\n<\/li>\n
\u6587\u4ef6\u5c5e\u6027\u5224\u65ad：IsDirectory()\u3001IsRegular()<\/p>\n<\/li>\n
\u8def\u5f84\u6709\u6548\u6027\u5224\u65ad：ValidPath()<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
static size_t Split(const std::string &src, const std::string &sep, std::vector<std::string> *array)<\/p>\n
\u4ece\u00a0src \u5f00\u5934\u5411\u540e\u67e5\u627e\u5206\u9694\u7b26\u00a0sep ，\u5c06\u5206\u9694\u51fa\u7684\u5b50\u4e32\u653e\u5165\u00a0array\u4e2d\u3002<\/p>\n<\/li>\n
\u652f\u6301\u591a\u5b57\u7b26\u5206\u9694\u7b26（\u5982\u00a0", "）\u3002<\/p>\n<\/li>\n
\u5ffd\u7565\u5f00\u5934\u7684\u8fde\u7eed\u5206\u9694\u7b26，\u907f\u514d\u4ea7\u751f\u7a7a\u4e32\u3002<\/p>\n<\/li>\n
\u8fd4\u56de\u5206\u5272\u540e\u7684\u5b50\u4e32\u6570\u91cf\u3002<\/p>\n<\/li>\n<\/ul>\n
static bool ReadFile(const std::string &filename, std::string *buf)
\nstatic bool WriteFile(const std::string &filename, const std::string buf)<\/p>\n
ReadFile: \u4ee5\u00a0std::ios::binary \u6253\u5f00\u6587\u4ef6，\u4f7f\u7528\u00a0seekg +\u00a0tellg\u83b7\u53d6\u6587\u4ef6\u5927\u5c0f，\u9884\u5206\u914d\u00a0buf \u5927\u5c0f\u540e\u4e00\u6b21\u6027\u8bfb\u53d6\u3002<\/p>\n<\/li>\n
WriteFile：\u4ee5\u00a0std::ios::trunc \u548c\u00a0 std::ios::binary\u00a0 \u6a21\u5f0f\u6253\u5f00，\u5c06\u00a0buf \u5168\u90e8\u5199\u5165\u6587\u4ef6\u3002<\/p>\n<\/li>\n
\u6240\u6709\u64cd\u4f5c\u5747\u8fdb\u884c\u9519\u8bef\u68c0\u67e5\u5e76\u6253\u5370\u65e5\u5fd7\u3002<\/p>\n<\/li>\n<\/ul>\n
static std::string UrlEncode(const std::string url, bool convert_space_to_plus)
\nstatic std::string UrlDecode(const std::string url, bool convert_plus_to_space)
\nstatic char HEXTOI(char c)<\/p>\n
UrlEncode：<\/p>\n
\u5b57\u6bcd\u3001\u6570\u5b57\u3001.\u00a0– _ ~\u00a0\u00a0\u76f4\u63a5\u4fdd\u7559；<\/p>\n<\/li>\n
\u82e5\u00a0convert_space_to_plus\u4e3a true ，\u7a7a\u683c\u8f6c\u4e3a\u00a0+；<\/p>\n<\/li>\n
\u5176\u4f59\u5b57\u7b26\u6309\u5b57\u8282\u8f6c\u4e3a%XX\u00a0\u683c\u5f0f（XX \u4e3a\u5341\u516d\u8fdb\u5236 ASCII \u503c）\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
UrlDecode：<\/p>\n
\u82e5\u00a0convert_space_to_plus\u4e3a true，\u5c06 + \u8f6c\u4e3a\u7a7a\u683c；<\/p>\n<\/li>\n
\u9047\u5230 %HH \u5219\u4f7f\u7528\u79c1\u6709\u51fd\u6570\u00a0HEXTOI \u5c06\u4e24\u4e2a\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u8f6c\u6362\u4e3a\u5bf9\u5e94\u6570\u503c，\u7ec4\u5408\u6210\u539f\u59cb\u5b57\u8282；<\/p>\n<\/li>\n
\u5176\u4ed6\u5b57\u7b26\u76f4\u63a5\u4fdd\u7559\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
HEXTOI：\u5c06 0-9\u3001A-F\u3001a-f\u00a0\u8f6c\u4e3a\u5bf9\u5e94\u7684 0~15 \u503c\u3002<\/p>\n<\/li>\n<\/ul>\n
static std::string StatusDesc(int status)
\nstatic std::string ExtMime(const std::string &filename)<\/p>\n
StatusDesc：\u5728\u00a0_status_msg \u4e2d\u67e5\u8be2\u72b6\u6001\u7801，\u672a\u627e\u5230\u8fd4\u56de\u00a0"Unknow"\u3002<\/p>\n<\/li>\n
ExtMime：\u53d6\u6587\u4ef6\u540d\u6700\u540e\u4e00\u4e2a\u00a0.\u00a0\u4e4b\u540e\u7684\u540e\u7f00，\u67e5\u627e\u00a0_mime_msg，\u672a\u627e\u5230\u8fd4\u56de "application\/octet-stream"\u3002<\/p>\n<\/li>\n<\/ul>\n
static bool IsDirectory(const std::string &filename)
\nstatic bool IsRegular(const std::string &filename)<\/p>\n
\u4f7f\u7528 POSIX \u7684stat()\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027\u3002<\/p>\n<\/li>\n
\u901a\u8fc7\u00a0S_ISDIR \u548c\u00a0S_ISREG \u5b8f\u8fdb\u884c\u5224\u65ad\u3002<\/p>\n<\/li>\n<\/ul>\n
static bool ValidPath(const std::string &path)<\/p>\n
\u5c06\u8def\u5f84\u6309 \/ \u5206\u5272，\u904d\u5386\u6bcf\u4e00\u7ea7\u76ee\u5f55：<\/p>\n
\u9047\u5230 ".. "\u00a0\u00a0\u5219\u00a0level–，\u82e5\u00a0level<0\u00a0\u8bf4\u660e\u5df2\u7ecf\u8df3\u51fa\u6839\u76ee\u5f55，\u8fd4\u56de false；<\/p>\n<\/li>\n
\u5426\u5219\u00a0level++\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
\u6700\u7ec8 level >= 0\u624d\u8ba4\u4e3a\u662f\u5408\u6cd5\u8def\u5f84\u3002<\/p>\n<\/li>\n<\/ul>\n
\u6838\u5fc3\u5934\u6587\u4ef6 util.hpp \u5982\u4e0b：<\/p>\n
#ifndef __UTIL__
\n#define __UTIL__
\n#include <fstream>
\n#include <cstring>
\n#include <sys\/stat.h>
\n#include "..\/source\/tcpserver.hpp"
\nnamespace xxhh
\n{
\n std::unordered_map<int, std::string> _status_msg =
\n {{100, "Continue"},
\n {101, "Switching Protocol"},
\n {102, "Processing"},
\n {103, "Early Hints"},
\n {200, "OK"},
\n {201, "Created"},
\n {202, "Accepted"},
\n {203, "Non-Authoritative Information"},
\n {204, "No Content"},
\n {205, "Reset Content"},
\n {206, "Partial Content"},
\n {207, "Multi-Status"},
\n {208, "Already Reported"},
\n {226, "IM Used"},
\n {300, "Multiple Choice"},
\n {301, "Moved Permanently"},
\n {302, "Found"},
\n {303, "See Other"},
\n {304, "Not Modified"},
\n {305, "Use Proxy"},
\n {306, "unused"},
\n {307, "Temporary Redirect"},
\n {308, "Permanent Redirect"},
\n {400, "Bad Request"},
\n {401, "Unauthorized"},
\n {402, "Payment Required"},
\n {403, "Forbidden"},
\n {404, "Not Found"},
\n {405, "Method Not Allowed"},
\n {406, "Not Acceptable"},
\n {407, "Proxy Authentication Required"},
\n {408, "Request Timeout"},
\n {409, "Conflict"},
\n {410, "Gone"},
\n {411, "Length Required"},
\n {412, "Precondition Failed"},
\n {413, "Payload Too Large"},
\n {414, "URI Too Long"},
\n {415, "Unsupported Media Type"},
\n {416, "Range Not Satisfiable"},
\n {417, "Expectation Failed"},
\n {418, "I'm a teapot"},
\n {421, "Misdirected Request"},
\n {422, "Unprocessable Entity"},
\n {423, "Locked"},
\n {424, "Failed Dependency"},
\n {425, "Too Early"},
\n {426, "Upgrade Required"},
\n {428, "Precondition Required"},
\n {429, "Too Many Requests"},
\n {431, "Request Header Fields Too Large"},
\n {451, "Unavailable For Legal Reasons"},
\n {501, "Not Implemented"},
\n {502, "Bad Gateway"},
\n {503, "Service Unavailable"},
\n {504, "Gateway Timeout"},
\n {505, "HTTP Version Not Supported"},
\n {506, "Variant Also Negotiates"},
\n {507, "Insufficient Storage"},
\n {508, "Loop Detected"},
\n {510, "Not Extended"},
\n {511, "Network Authentication Required"}};
\n std::unordered_map<std::string, std::string> _mime_msg = {
\n {".aac", "audio\/aac"},
\n {".abw", "application\/x-abiword"},
\n {".arc", "application\/x-freearc"},
\n {".avi", "video\/x-msvideo"},
\n {".azw", "application\/vnd.amazon.ebook"},
\n {".bin", "application\/octet-stream"},
\n {".bmp", "image\/bmp"},
\n {".bz", "application\/x-bzip"},
\n {".bz2", "application\/x-bzip2"},
\n {".csh", "application\/x-csh"},
\n {".css", "text\/css"},
\n {".csv", "text\/csv"},
\n {".doc", "application\/msword"},
\n {".docx", "application\/vnd.openxmlformats-officedocument.wordprocessingml.document"},
\n {".eot", "application\/vnd.ms-fontobject"},
\n {".epub", "application\/epub+zip"},
\n {".gif", "image\/gif"},
\n {".htm", "text\/html"},
\n {".html", "text\/html"},
\n {".ico", "image\/vnd.microsoft.icon"},
\n {".ics", "text\/calendar"},
\n {".jar", "application\/java-archive"},
\n {".jpeg", "image\/jpeg"},
\n {".jpg", "image\/jpeg"},
\n {".js", "text\/javascript"},
\n {".json", "application\/json"},
\n {".jsonld", "application\/ld+json"},
\n {".mid", "audio\/midi"},
\n {".midi", "audio\/x-midi"},
\n {".mjs", "text\/javascript"},
\n {".mp3", "audio\/mpeg"},
\n {".mpeg", "video\/mpeg"},
\n {".mpkg", "application\/vnd.apple.installer+xml"},
\n {".odp", "application\/vnd.oasis.opendocument.presentation"},
\n {".ods", "application\/vnd.oasis.opendocument.spreadsheet"},
\n {".odt", "application\/vnd.oasis.opendocument.text"},
\n {".oga", "audio\/ogg"},
\n {".ogv", "video\/ogg"},
\n {".ogx", "application\/ogg"},
\n {".otf", "font\/otf"},
\n {".png", "image\/png"},
\n {".pdf", "application\/pdf"},
\n {".ppt", "application\/vnd.ms-powerpoint"},
\n {".pptx", "application\/vnd.openxmlformats-officedocument.presentationml.presentation"},
\n {".rar", "application\/x-rar-compressed"},
\n {".rtf", "application\/rtf"},
\n {".sh", "application\/x-sh"},
\n {".svg", "image\/svg+xml"},
\n {".swf", "application\/x-shockwave-flash"},
\n {".tar", "application\/x-tar"},
\n {".tif", "image\/tiff"},
\n {".tiff", "image\/tiff"},
\n {".ttf", "font\/ttf"},
\n {".txt", "text\/plain"},
\n {".vsd", "application\/vnd.visio"},
\n {".wav", "audio\/wav"},
\n {".weba", "audio\/webm"},
\n {".webm", "video\/webm"},
\n {".webp", "image\/webp"},
\n {".woff", "font\/woff"},
\n {".woff2", "font\/woff2"},
\n {".xhtml", "application\/xhtml+xml"},
\n {".xls", "application\/vnd.ms-excel"},
\n {".xlsx", "application\/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
\n {".xml", "application\/xml"},
\n {".xul", "application\/vnd.mozilla.xul+xml"},
\n {".zip", "application\/zip"},
\n {".3gp", "video\/3gpp"},
\n {".3g2", "video\/3gpp2"},
\n {".7z", "application\/x-7z-compressed"}};
\n class Util
\n {
\n \/\/ \u5b57\u7b26\u4e32\u5206\u5272
\n \/\/ \u5b57\u7b26\u4e32\u5206\u5272\u51fd\u6570，\u5c06 src \u5b57\u7b26\u4e32\u6309\u7167 sep \u5b57\u7b26\u8fdb\u884c\u5206\u5272，\u5f97\u5230\u7684\u5404\u4e2a\u5b57\u7b26\u653e\u5230 array\u4e2d，\u6700\u7ec8\u8fd4\u56de\u5b50\u4e32\u7684\u6570\u91cf
\n static size_t Split(const std::string &src, const std::string &sep, std::vector<std::string> *array)
\n {
\n \/\/ find + substr \u627e\u5230 \u622a\u65ad
\n size_t offset = 0;
\n while (offset < src.size())
\n {
\n \/\/ abc,def,a
\n int pos = src.find(sep);
\n if (pos == std::string::npos)
\n {
\n \/\/ \u6ca1\u6709\u627e\u5230\u7279\u5b9a\u5b57\u7b26，\u5c06\u5269\u4f59\u7684\u90e8\u5206\u5f53\u505a\u4e00\u4e2a\u5b57\u7b26，\u653e\u5165\u5230array
\n if (pos == src.size())
\n break;
\n array->push_back(src.substr(offset));
\n return array->size();
\n }
\n if (pos == offset)
\n {
\n offset = pos + sep.size();
\n continue; \/\/ \u6b64\u5904\u662f\u7a7a\u4e32
\n }
\n \/\/ \u6b63\u5e38\u60c5\u51b5
\n array->push_back(src.substr(offset, pos – offset));
\n offset += sep.size();
\n }
\n return array->size();
\n }
\n \/\/ \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9
\n \/\/ \u8bfb\u53d6\u6587\u4ef6\u7684\u6240\u6709\u5185\u5bb9，\u5c06\u8bfb\u53d6\u7684\u5185\u5bb9\u653e\u5230\u4e00\u4e2aBuffer\u4e2d
\n static bool ReadFile(const std::string &filename, std::string *buf)
\n {
\n \/\/ \u4ee5\u4e8c\u8fdb\u5236\u65b9\u5f0f\u8bfb\u53d6
\n std::ifstream ifs(filename, std::ios::binary);
\n if (ifs.is_open() == false)
\n {
\n ERR_LOG("OPEN %s FILE FAILED!", filename.c_str());
\n return false;
\n }
\n size_t fsize = 0;
\n \/\/ \u8df3\u8f6c\u5230\u8bfb\u5199\u4f4d\u7f6e\u7684\u672b\u5c3e
\n ifs.seekg(0, ifs.end);
\n \/\/ \u83b7\u53d6\u6587\u4ef6\u5927\u5c0f
\n fsize = ifs.tellg();
\n \/\/ \u8df3\u8f6c\u5230\u6307\u5b9a\u4f4d\u7f6e
\n ifs.seekg(0, ifs.beg);
\n buf->resize(fsize);
\n ifs.read(&(*buf)[0], fsize);
\n if (ifs.good() == false)
\n {
\n ERR_LOG("Read %s File Failed", filename.c_str());
\n ifs.close();
\n return false;
\n }
\n ifs.close();
\n return true;
\n }
\n \/\/ \u5411\u6587\u4ef6\u5199\u5165\u6570\u636e
\n static bool WriteFile(const std::string &filename, const std::string buf)
\n {
\n std::ofstream ofs(filename, std::ios::binary | std::ios::trunc);
\n if (ofs.is_open() == false)
\n {
\n ERR_LOG("OPEN %s FILE FAILED!!", filename.c_str());
\n return false;
\n }
\n ofs.write(buf.c_str(), buf.size());
\n if (ofs.good() == false)
\n {
\n ERR_LOG("Write %s File Failed", filename.c_str());
\n ofs.close();
\n return false;
\n }
\n ofs.close();
\n return true;
\n }
\n \/\/ URL\u7f16\u7801
\n \/\/ \u907f\u514d URL \u4e2d\u8d44\u6e90\u8def\u5f84\u4e0e\u67e5\u8be2\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26 \u4e0e HTTP \u8bf7\u6c42\u4e2d\u7279\u6b8a\u5b57\u7b26\u4ea7\u751f\u6b67\u4e49
\n \/\/ \u7f16\u7801\u683c\u5f0f：\u5c06 \u7279\u6b8a\u5b57\u7b26\u7684 ascii \u503c，\u8f6c\u6362\u6210\u4e24\u4e2a16\u7981\u6b62\u5b57\u7b26，\u524d\u7f00& C++ -> C%2B%2B
\n \/\/ \u4e0d\u7f16\u7801\u7684\u7279\u6b8a\u5b57\u7b26：RFC3986\u6587\u6863\u89c4\u5b9a . – _ ~ \u5b57\u6bcd,\u6570\u5b57\u5c5e\u4e8e\u7edd\u5bf9\u4e0d\u7f16\u7801\u5b57\u7b26
\n \/\/ W3C\u6807\u51c6\u4e2d\u89c4\u5b9a，\u67e5\u8be2\u5b57\u7b26\u4e32\u4e2d\u7684\u7a7a\u683c，\u9700\u8981\u7f16\u7801\u4e3a+, \u89e3\u7801\u5219\u662f+ \u8f6c\u6210 \u7a7a\u683c
\n \/\/ convert_space_to_plus \u4e3a true \u65f6，\u7a7a\u683c（' '）\u4f1a\u88ab\u7f16\u7801\u4e3a\u52a0\u53f7（'+'）
\n static std::string UrlEncode(const std::string url, bool convert_space_to_plus)
\n {
\n std::string res;
\n for (auto &e : url)
\n {
\n unsigned char uc = static_cast<unsigned char>(e);
\n if (uc == '.' || uc == '-' || uc == '_' || uc == '~' || isalnum(uc))
\n {
\n res += e;
\n continue;
\n }
\n if (uc == ' ' && convert_space_to_plus)
\n {
\n res += '+';
\n continue;
\n }
\n char tmp[4] = {0};
\n snprintf(tmp, sizeof(tmp), "%%%02X", uc); \/\/ \u5927\u5199 %X \u66f4\u5e38\u89c1，\u4e5f\u53ef\u7528 %02x
\n res += tmp;
\n }
\n return res;
\n }
\n \/\/ HEXTOI \u51fd\u6570\u7684\u4f5c\u7528\u662f\u5c06\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u5b57\u7b26（0-9\u3001a-f\u3001A-F）\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684\u6574\u6570\u503c（0 \u5230 15）\u3002
\n static char HEXTOI(char c)
\n {
\n if (c >= '0' && c <= '9')
\n {
\n return c – '0';
\n }
\n else if (c >= 'a' && c <= 'z')
\n {
\n return c – 'a' + 10;
\n }
\n else if (c >= 'A' && c <= 'Z')
\n {
\n return c – 'A' + 10;
\n }
\n return -1;
\n }
\n \/\/ URL\u89e3\u7801
\n \/\/ \u9047\u5230\u4e86%，\u5219\u5c06\u7d27\u968f\u5176\u540e\u76842\u4e2a\u5b57\u7b26，\u8f6c\u6362\u4e3a\u6570\u5b57，\u7b2c\u4e00\u4e2a\u6570\u5b57\u5de6\u79fb4\u4f4d，\u7136\u540e\u52a0\u4e0a\u7b2c\u4e8c\u4e2a\u6570\u5b57 + -> 2b %2b->2 << 4 + 11
\n static std::string UrlDecode(const std::string url, bool convert_plus_to_space)
\n {
\n std::string res;
\n for (int i = 0; i < url.size(); i++)
\n {
\n if (url[i] == '+' && convert_plus_to_space == true)
\n {
\n res += ' ';
\n continue;
\n }
\n if (url[i] == '%' && (i + 2) < url.size())
\n {
\n char v1 = HEXTOI(url[i + 1]);
\n char v2 = HEXTOI(url[i + 2]);
\n char v = v1 * 16 + v2;
\n res += v;
\n i += 2;
\n continue;
\n }
\n res += url[i];
\n }
\n return res;
\n }
\n \/\/ \u54cd\u5e94\u72b6\u6001\u7801\u7684\u63cf\u8ff0\u4fe1\u606f\u63d0\u53d6
\n static std::string StatusDesc(int status)
\n {
\n auto it = _status_msg.find(status);
\n if (it == _status_msg.end())
\n {
\n return "Unknow";
\n }
\n return it->second;
\n }
\n \/\/ \u6839\u636e\u6587\u4ef6\u540e\u7f00\u540d\u8bfb\u53d6\u6587\u4ef6 mine
\n static std::string ExtMime(const std::string &filename)
\n {
\n \/\/ a.b.txt \u5148\u83b7\u53d6\u6587\u4ef6\u6269\u5c55\u540d
\n size_t pos = filename.find_last_of('.');
\n if (pos == std::string::npos)
\n {
\n return "application\/octet-stream";
\n }
\n \/\/ \u6839\u636e\u6269\u5c55\u540d，\u83b7\u53d6mime
\n std::string ext = filename.substr(pos);
\n auto it = _mime_msg.find(ext);
\n if (it == _mime_msg.end())
\n {
\n return "application\/octet-stream";
\n }
\n return it->second;
\n }
\n \/\/ \u5224\u65ad\u4e00\u4e2a\u6587\u4ef6\u662f\u5426\u662f\u76ee\u5f55
\n static bool IsDirectory(const std::string &filename)
\n {
\n \/\/ stat – display file or file system status
\n struct stat st;
\n int ret = stat(filename.c_str(), &st);
\n if (ret < 0)
\n return false;
\n return S_ISDIR(st.st_mode);
\n }
\n \/\/ \u5224\u65ad\u662f\u5426\u4e3a\u666e\u901a\u6587\u4ef6
\n static bool IsRegular(const std::string &filename)
\n {
\n struct stat st;
\n int ret = stat(filename.c_str(), &st);
\n if (ret < 0)
\n return false;
\n return S_ISREG(st.st_mode);
\n }
\n \/\/ http\u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84\u6709\u6548\u6027\u5224\u65ad
\n \/\/ \/index.html — \u524d\u8fb9\u7684\/\u53eb\u505a\u76f8\u5bf9\u6839\u76ee\u5f55 \u6620\u5c04\u7684\u662f\u67d0\u4e2a\u670d\u52a1\u5668\u4e0a\u7684\u5b50\u76ee\u5f55
\n \/\/ \u60f3\u8868\u8fbe\u7684\u610f\u601d\u5c31\u662f，\u5ba2\u6237\u7aef\u53ea\u80fd\u8bf7\u6c42\u76f8\u5bf9\u6839\u76ee\u5f55\u4e2d\u7684\u8d44\u6e90，\u5176\u4ed6\u5730\u65b9\u7684\u8d44\u6e90\u90fd\u4e0d\u4e88\u7406\u4f1a
\n \/\/ \/..\/login, \u8fd9\u4e2a\u8def\u5f84\u4e2d\u7684..\u4f1a\u8ba9\u8def\u5f84\u7684\u67e5\u627e\u8dd1\u5230\u76f8\u5bf9\u6839\u76ee\u5f55\u4e4b\u5916，\u8fd9\u662f\u4e0d\u5408\u7406\u7684，\u4e0d\u5b89\u5168\u7684
\n static bool ValidPath(const std::string &path)
\n {
\n std::vector<std::string> subdir;
\n int level = 0;
\n Split(path, "\/", &subdir);
\n for (auto &dir : subdir)
\n {
\n if (dir == "..")
\n {
\n level–;
\n if (level < 0)
\n return false;
\n continue;
\n }
\n level++;
\n }
\n return true;
\n }
\n };
\n}<\/p>\n
#endif<\/p>\n
\u5b9e\u73b0\u8981\u70b9\u8bf4\u660e：<\/p>\n
Split \u901a\u8fc7\u5faa\u73af\u67e5\u627e\u00a0sep，\u7528\u00a0substr \u622a\u53d6\u5b50\u4e32，\u5e76\u8df3\u8fc7\u524d\u5bfc\u5206\u9694\u7b26，\u907f\u514d\u7a7a\u4e32\u6c61\u67d3\u7ed3\u679c\u3002<\/p>\n<\/li>\n
ReadFile\u548c WriteFile\u90fd\u4f7f\u7528\u4e86 RAII \u98ce\u683c\u7684\u00a0ifstream \/ ofstream，\u5728\u51fd\u6570\u7ed3\u675f\u65f6\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<\/li>\n
UrlEncode \u4e2d\u5bf9\u4e8e\u9700\u8981\u7f16\u7801\u7684\u5b57\u7b26，\u4f7f\u7528\u00a0snprintf \u683c\u5f0f\u5316\u4e3a %02X，\u4fdd\u8bc1\u4e24\u4f4d\u5341\u516d\u8fdb\u5236\u5927\u5199\u3002<\/p>\n<\/li>\n
ValidPath \u5de7\u7528\u5c42\u7ea7\u8ba1\u6570\u4ee3\u66ff\u771f\u5b9e\u8def\u5f84\u89e3\u6790，\u65e2\u9ad8\u6548\u53c8\u5b89\u5168\u3002<\/p>\n<\/li>\n<\/ul>\n
\u00a0 \u00a0Util \u5de5\u5177\u7c7b\u662f HTTP \u670d\u52a1\u5668\u6846\u67b6\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u73af，\u5b83\u5c06\u96f6\u6563\u7684\u8f85\u52a9\u529f\u80fd\u7edf\u4e00\u7ba1\u7406，\u63d0\u9ad8\u4e86\u4ee3\u7801\u590d\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u901a\u8fc7\u9759\u6001\u65b9\u6cd5\u7684\u8bbe\u8ba1，\u65e0\u9700\u5b9e\u4f8b\u5316\u5373\u53ef\u5728\u4efb\u4f55\u6a21\u5757\u4e2d\u65b9\u4fbf\u8c03\u7528\u3002\u540e\u7eed\u6211\u4eec\u5c06\u7ed3\u5408 Buffer \u3001Tcpserver\u4ee5\u53ca\u00a0Util ，\u6b63\u5f0f\u7ec4\u88c5\u51fa\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u9759\u6001\u8d44\u6e90 HTTP \u670d\u52a1\u5668，\u656c\u8bf7\u671f\u5f85！<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
\u4ece\u96f6\u624b\u5199\u9ad8\u6027\u80fdC TCP \u670d\u52a1\u5668\u6846\u67b6(\u5341\u4e94) — Util\u5de5\u5177\u5b9e\u73b0\u5728\u524d\u9762\u7684\u6587\u7ae0\u4e2d，\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86 \u670d\u52a1\u7aef\u642d\u5efa \u7684\u642d\u5efa\u3002\u5728\u6784\u5efa HTTP \u670d\u52a1\u5668\u7684\u8fc7\u7a0b\u4e2d，\u603b\u4f1a\u9047\u5230\u8bb8\u591a\u7ec6\u5c0f\u4f46\u9ad8\u9891\u7684\u64cd\u4f5c：\u6bd4\u5982\u628a URL \u91cc\u7684\u7279\u6b8a\u7b26\u53f7\u7f16\u7801\u3001\u89e3\u7801，\u4ece\u6587\u4ef6\u540e\u7f00\u540d\u63a8\u65ad MIME \u7c7b\u578b，\u5224\u65ad\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u8def\u5f84\u662f\u5426\u5b89\u5168\u7b49\u3002\u5982\u679c\u628a\u8fd9\u4e9b\u903b\u8f91\u96f6\u6563\u5730\u5199\u5728\u5404\u4e2a\u6a21\u5757\u91cc，\u4ee3\u7801\u4f1a\u53d8\u5f97\u96be\u4ee5\u7ef4\u62a4\u3002\u56e0\u6b64，\u6211\u4eec\u4e13\u95e8\u62bd\u51fa\u4e00\u4e2a\u5de5\u5177\u7c7b Ut<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,205,43],"topic":[],"class_list":["post-82604","post","type-post","status-publish","format-standard","hentry","category-server","tag-c","tag-tcp-ip","tag-43"],"yoast_head":"\n