📄 utils.cxx
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/* * * C++ Portable Types Library (PTypes) * Version 1.7.5 Released 9-Mar-2003 * * Copyright (c) 2001, 2002, 2003 Hovik Melikyan * * http://www.melikyan.com/ptypes/ * http://ptypes.sourceforge.net/ * */#include <stdlib.h>#include <stdio.h>#include <ptypes.h>#include <ptime.h>#include "config.h"#include "sysutils.h"#include "utils.h"#include "urlutils.h"USING_PTYPESchar trail_char(const string& s){ if (isempty(s)) return 0; else return *(pconst(s) + length(s) - 1);}void trunc_trail_char(string& s){ if (isempty(s)) return; else setlength(s, length(s) - 1);}static const cset htchars = "<>&\"~00";void html_encode(outstm& s, const char* p){ while (*p != 0) { const char* b = p; while (!(*p & htchars)) p++; s.write(b, p - b); switch (*p) { case '<': s.put("<"); break; case '>': s.put(">"); break; case '&': s.put("&"); break; case '"': s.put("""); break; case '\xa0': s.put(" "); break; } if (*p != 0) p++; }}void std_html_header(outstm& s, const string& title){ s.put("<html><head>\n"); s.put("<title>"); html_encode(s, title); s.put("</title>\n"); s.put(STD_CSS); s.put("</head><body>\n"); s.put("<h3><br>"); html_encode(s, title); s.put("</h3>\n");}void std_html_footer(outstm& s){ s.put("<p><hr noshade size=1>"); s.put(SERVER_APP_NAME); s.put(" at "); s.put(cfg_server_name); if (cfg_port != DEF_HTTP_PORT) s.put(':' + itostring(cfg_port)); s.put("</p>\n</body></html>\n");}void html_show_file_list(outstm& s, const filist& list){ const int FSIZE_WIDTH = 5; for (int i = 0; i < length(list); i++) { file_info* f = list[i]; s.put(dttostring(f->modified, "%d-%b-%Y %H:%M")); s.put(" "); if (trail_char(f->name) != '/') { string t = itostring(f->size); char c = ' '; if (length(t) > FSIZE_WIDTH) { c = 'k'; t = itostring(f->size / 1024); if (length(t) > FSIZE_WIDTH) { c = 'M'; t = itostring(f->size / 1024 / 1024); } } s.put(pad(t, FSIZE_WIDTH, ' ', false)); s.put(c); } else s.put(" - "); s.put(" "); s.put("<a href=\""); html_encode(s, urlencodepath(f->name)); s.put("\">"); html_encode(s, f->name); s.put("</a>\r\n"); }}//// splits a URI path into components and builds// a list of directory names. also resolves './'// and '../' references//void split_path(const char* path, strlist& list){ clear(list); const char* e = path; if (*e == '/') e++; const char* b = e; while (*b != 0) { e = strchr(e, '/'); if (e == nil) e = path + strlen(path); if (e > b) { string s(b, e - b); // directory name if (s != '.') // ignore './' self-references { if (s == "..") // resolve '../' references { if (length(list) > 0) del(list, length(list) - 1); } else add(list, s, nil); } } if (*e == '/') e++; b = e; }}string get_mimetype(const string& path){ string ext = get_file_ext(path); if (isempty(ext)) if (is_executable(path)) return "application/octet-stream"; else return DEF_MIME_TYPE; const char** p = mimetypes; while (*p != 0) { if (**p == '.' && ext == *p) { do { p++; } while (**p == '.'); return *p; } p++; } return "application/octet-stream";}const cset digits = "0-9";const cset letters = "A-Za-z";const cset non_date_chars = cset("~20-~FF") - digits - letters;static const char* mnames[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};static const char* downames[7] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};datetime parse_http_date(const string& d){ string s; inmemory m(d); m.open(); m.skiptoken(letters); // day of week m.skiptoken(non_date_chars); s = m.token(digits); // day if (length(s) == 0) return invdatetime; int day = atoi(s); m.skiptoken(non_date_chars); s = m.token(letters); // month setlength(s, 3); int month = 0; for (int i = 0; i < 12; i++) { if (s == mnames[i]) { month = i + 1; break; } } if (month == 0) return invdatetime; m.skiptoken(non_date_chars); s = m.token(digits); // year if (length(s) == 0) return invdatetime; int year = atoi(s); if (year < 50) year += 2000; else if (year < 100) year += 1900; m.skiptoken(non_date_chars); int hour = atoi(m.token(digits)); m.get(); int min = atoi(m.token(digits)); m.get(); int sec = atoi(m.token(digits)); return encodedate(year, month, day) + encodetime(hour, min, sec);}// #define HTTP_DATE_FMT "%a, %d %b %Y %H:%M:%S GMT"string http_time_stamp(datetime t){ if (t == invdatetime) t = now(true); int dow, year, month, day, hour, min, sec; decodedate(t, year, month, day); decodetime(t, hour, min, sec); dow = dayofweek(t); char buf[128]; snprintf(buf, sizeof(buf), "%s, %02d %s %04d %02d:%02d:%02d GMT", downames[dow], day, mnames[month - 1], year, hour, min, sec); return buf;}/*large pstrtoll(const char *nptr, char **endptr){#ifdef WIN32 *endptr = (char*)nptr; bool neg = false; if (**endptr == '-') { (*endptr)++; neg = true; } large res = 0; char c = **endptr; while (c >= '0' && c <= '9') { res = res * 10 + (c - '0'); (*endptr)++; c = **endptr; } if (neg) res = -res; return res;#else return ::strtoll(nptr, endptr, 10);#endif}*/⌨️ 快捷键说明
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