LibOFX: ofx_utilities.cpp Source File

LibOFX

ofx_utilities.cpp
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1 /***************************************************************************
2 ofx_util.cpp
3 -------------------
4 copyright : (C) 2002 by Benoit Gr�goire
5 email : benoitg@coeus.ca
6 ***************************************************************************/
10 /***************************************************************************
11 * *
12 * This program is free software; you can redistribute it and/or modify *
13 * it under the terms of the GNU General Public License as published by *
14 * the Free Software Foundation; either version 2 of the License, or *
15 * (at your option) any later version. *
16 * *
17 ***************************************************************************/
18 #include <config.h>
19 #include <iostream>
20 #include <assert.h>
21
22 #include "ParserEventGeneratorKit.h"
23 #include "SGMLApplication.h"
24 #include <ctime>
25 #include <cstdlib>
26 #include <string>
27 #include <locale.h>
28 #include "messages.hh"
29 #include "ofx_utilities.hh"
30
31 #ifdef __WIN32__
32 # define DIRSEP "\\"
33 #else
34 # define DIRSEP "/"
35 #endif
36
37
38 using namespace std;
42 /*ostream &operator<<(ostream &os, SGMLApplication::CharString s)
43 {
44 for (size_t i = 0; i < s.len; i++)
45 {
46 os << ((char *)(s.ptr))[i*sizeof(SGMLApplication::Char)];
47 }
48 return os;
49 }*/
50
51 /*wostream &operator<<(wostream &os, SGMLApplication::CharString s)
52 {
53 for (size_t i = 0; i < s.len; i++)
54 {//cout<<i;
55 os << wchar_t(s.ptr[i*MULTIPLY4]);
56 }
57 return os;
58 } */
59
60 /*wchar_t* CharStringtowchar_t(SGMLApplication::CharString source, wchar_t *dest)
61 {
62 size_t i;
63 for (i = 0; i < source.len; i++)
64 {
65 dest[i]+=wchar_t(source.ptr[i*sizeof(SGMLApplication::Char)*(sizeof(char)/sizeof(wchar_t))]);
66 }
67 return dest;
68 }*/
69
70 string CharStringtostring(const SGMLApplication::CharString source, string &dest)
71 {
72 size_t i;
73 dest.assign("");//Empty the provided string
74 // cout<<"Length: "<<source.len<<"sizeof(Char)"<<sizeof(SGMLApplication::Char)<<endl;
75 for (i = 0; i < source.len; i++)
76 {
77 dest += (char)(((source.ptr)[i]));
78 // cout<<i<<" "<<(char)(((source.ptr)[i]))<<endl;
79 }
80 return dest;
81 }
82
83 string AppendCharStringtostring(const SGMLApplication::CharString source, string &dest)
84 {
85 size_t i;
86 for (i = 0; i < source.len; i++)
87 {
88 dest += (char)(((source.ptr)[i]));
89 }
90 return dest;
91 }
92
93 /* Since we don't know for an arbitrary date-time whether or not it represents daylight time and we have to tell mktime something, we tell it yes if the current environment's TZ uses daylight time. If mktime finds that the supplied date-time isn't in daylight time for that time zone, it will adjust the struct tm to reflect the same time-point in not-daylight time and correct the value of tm_isdst. We check for that change and if it happens restore timeptr's date and time values and call mktime again with the correct value of tm_isdst. */
94 static time_t
95 checked_mktime(struct tm* timeptr)
96 {
97 int is_dst = timeptr->tm_isdst;
98 int min = timeptr->tm_min;
99 int hour = timeptr->tm_hour;
100 int mday = timeptr->tm_mday;
101 int mon = timeptr->tm_mon;
102 int year = timeptr->tm_year;
103 time_t result = mktime(timeptr);
104 if (is_dst == timeptr->tm_isdst) // mktime didn't change it, OK to use the result.
105 return result;
106
107 //Restore the date & time to what it was, but use the new isdst value:
108 timeptr->tm_min = min;
109 timeptr->tm_hour = hour;
110 timeptr->tm_mday = mday;
111 timeptr->tm_mon = mon;
112 timeptr->tm_year = year;
113 return mktime(timeptr);
114 }
115
131 time_t ofxdate_to_time_t(const string ofxdate)
132 {
133 struct tm time;
134 double local_offset; /* in seconds */
135 float ofx_gmt_offset; /* in fractional hours */
136 char timezone[4]; /* Original timezone: the library does not expose this value*/
137 char exact_time_specified = false;
138 char time_zone_specified = false;
139 string ofxdate_whole;
140 time_t temptime;
141
142 std::time(&temptime);
143 local_offset = difftime(mktime(localtime(&temptime)), mktime(gmtime(&temptime)));
144 /* daylight is set to 1 if the timezone indicated by the environment (either TZ or /etc/localtime) uses daylight savings time (aka summer time). We use it here to provisionally set tm_isdst. */
145 time.tm_isdst = daylight;
146
147 if (ofxdate.size() != 0)
148 {
149 ofxdate_whole = ofxdate.substr(0, ofxdate.find_first_not_of("0123456789"));
150 if (ofxdate_whole.size() >= 8)
151 {
152 time.tm_year = atoi(ofxdate_whole.substr(0, 4).c_str()) - 1900;
153 time.tm_mon = atoi(ofxdate_whole.substr(4, 2).c_str()) - 1;
154 time.tm_mday = atoi(ofxdate_whole.substr(6, 2).c_str());
155
156 if (ofxdate_whole.size() > 8)
157 {
158 if (ofxdate_whole.size() == 14)
159 {
160 /* if exact time is specified */
161 exact_time_specified = true;
162 time.tm_hour = atoi(ofxdate_whole.substr(8, 2).c_str());
163 time.tm_min = atoi(ofxdate_whole.substr(10, 2).c_str());
164 time.tm_sec = atoi(ofxdate_whole.substr(12, 2).c_str());
165 }
166 else
167 {
168 message_out(WARNING, "ofxdate_to_time_t(): Successfully parsed date part, but unable to parse time part of string " + ofxdate_whole + ". It is not in proper YYYYMMDDHHMMSS.XXX[gmt offset:tz name] format!");
169 }
170 }
171
172 }
173 else
174 {
175 /* Catch invalid string format */
176 message_out(ERROR, "ofxdate_to_time_t(): Unable to convert time, string " + ofxdate + " is not in proper YYYYMMDDHHMMSS.XXX[gmt offset:tz name] format!");
177 return checked_mktime(&time);
178 }
179
180
181 /* Check if the timezone has been specified */
182 string::size_type startidx = ofxdate.find("[");
183 string::size_type endidx;
184 if (startidx != string::npos)
185 {
186 /* Time zone was specified */
187 time_zone_specified = true;
188 startidx++;
189 endidx = ofxdate.find(":", startidx) - 1;
190 ofx_gmt_offset = atof(ofxdate.substr(startidx, (endidx - startidx) + 1).c_str());
191 startidx = endidx + 2;
192 strncpy(timezone, ofxdate.substr(startidx, 3).c_str(), 4);
193 }
194 else
195 {
196 /* Time zone was not specified, assume GMT (provisionnaly) in case exact time is specified */
197 ofx_gmt_offset = 0;
198 time.tm_isdst = 0; //GMT doesn't use daylight time.
199 strcpy(timezone, "GMT");
200 }
201
202 if (time_zone_specified == true)
203 {
204 /* If the timezone is specified always correct the timezone */
205 /* If the timezone is not specified, but the exact time is, correct the timezone, assuming GMT following the spec */
206 /* Correct the time for the timezone */
207 time.tm_sec = time.tm_sec + (int)(local_offset - (ofx_gmt_offset * 60 * 60)); //Convert from fractionnal hours to seconds
208 }
209 else if (exact_time_specified == false)
210 {
211 /*Time zone data missing and exact time not specified, diverge from the OFX spec ans assume 11h59 local time */
212 time.tm_hour = 11;
213 time.tm_min = 59;
214 time.tm_sec = 0;
215 }
216 return checked_mktime(&time);
217 }
218 else
219 {
220 message_out(ERROR, "ofxdate_to_time_t(): Unable to convert time, string is 0 length!");
221 return 0; // MUST RETURN ZERO here because otherwise the uninitialized &time will be returned!
222 }
223 return checked_mktime(&time);
224 }
225
230 double ofxamount_to_double(const string ofxamount)
231 {
232 //Replace commas and decimal points for atof()
233 string::size_type idx;
234 string tmp = ofxamount;
235
236 idx = tmp.find(',');
237 if (idx == string::npos)
238 {
239 idx = tmp.find('.');
240 }
241
242 if (idx != string::npos)
243 {
244 tmp.replace(idx, 1, 1, ((localeconv())->decimal_point)[0]);
245 }
246
247 return atof(tmp.c_str());
248 }
249
253 string strip_whitespace(const string para_string)
254 {
255 size_t index;
256 size_t i;
257 string temp_string = para_string;
258 if (temp_string.empty())
259 return temp_string; // so that size()-1 is allowed below
260
261 const char *whitespace = " \b\f\n\r\t\v";
262 const char *abnormal_whitespace = "\b\f\n\r\t\v";//backspace,formfeed,newline,cariage return, horizontal and vertical tabs
263 message_out(DEBUG4, "strip_whitespace() Before: |" + temp_string + "|");
264
265 for (i = 0;
266 i <= temp_string.size()
267 && temp_string.find_first_of(whitespace, i) == i
268 && temp_string.find_first_of(whitespace, i) != string::npos;
269 i++);
270 temp_string.erase(0, i); //Strip leading whitespace
271
272 for (i = temp_string.size() - 1;
273 (i > 0)
274 && (temp_string.find_last_of(whitespace, i) == i)
275 && (temp_string.find_last_of(whitespace, i) != string::npos);
276 i--);
277 temp_string.erase(i + 1, temp_string.size() - (i + 1)); //Strip trailing whitespace
278
279 while ((index = temp_string.find_first_of(abnormal_whitespace)) != string::npos)
280 {
281 temp_string.erase(index, 1); //Strip leading whitespace
282 };
283
284 message_out(DEBUG4, "strip_whitespace() After: |" + temp_string + "|");
285
286 return temp_string;
287 }
288
289
290 std::string get_tmp_dir()
291 {
292 // Tries to mimic the behaviour of
293 // http://developer.gnome.org/doc/API/2.0/glib/glib-Miscellaneous-Utility-Functions.html#g-get-tmp-dir
294 char *var;
295 var = getenv("TMPDIR");
296 if (var) return var;
297 var = getenv("TMP");
298 if (var) return var;
299 var = getenv("TEMP");
300 if (var) return var;
301 #ifdef __WIN32__
302 return "C:\\";
303 #else
304 return "/tmp";
305 #endif
306 }
307
308 int mkTempFileName(const char *tmpl, char *buffer, unsigned int size)
309 {
310
311 std::string tmp_dir = get_tmp_dir();
312
313 strncpy(buffer, tmp_dir.c_str(), size);
314 assert((strlen(buffer) + strlen(tmpl) + 2) < size);
315 strcat(buffer, DIRSEP);
316 strcat(buffer, tmpl);
317 return 0;
318 }
319
320
321
std
AppendCharStringtostring
string AppendCharStringtostring(const SGMLApplication::CharString source, string &dest)
Append an OpenSP CharString to an existing C++ STL string.
Definition: ofx_utilities.cpp:83
WARNING
Definition: messages.hh:33
DEBUG4
Definition: messages.hh:29
message_out
int message_out(OfxMsgType error_type, const string message)
Message output function.
Definition: messages.cpp:61
ofxdate_to_time_t
time_t ofxdate_to_time_t(const string ofxdate)
Convert a C++ string containing a time in OFX format to a C time_t.
Definition: ofx_utilities.cpp:131
ofxamount_to_double
double ofxamount_to_double(const string ofxamount)
Convert OFX amount of money to double float.
Definition: ofx_utilities.cpp:230
CharStringtostring
string CharStringtostring(const SGMLApplication::CharString source, string &dest)
Convert OpenSP CharString to a C++ STL string.
Definition: ofx_utilities.cpp:70
ofx_utilities.hh
Various simple functions for type conversion & al.
ERROR
Definition: messages.hh:34
strip_whitespace
string strip_whitespace(const string para_string)
Sanitize a string coming from OpenSP.
Definition: ofx_utilities.cpp:253
messages.hh
Message IO functionality.