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Code Issues Releases Wiki Activity

proper kml-timestamps

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B. Petersen 2019-03-07 19:47:19 +01:00
parent b72e22a1ba
commit 4c7faaa1ff
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1 changed files with 17 additions and 4 deletions
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21
src/dc_location.c
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@ -143,6 +143,16 @@ cleanup:
} }
static char* get_kml_timestamp(time_t utc)
{
// Returns a string formatted as YYYY-MM-DDTHH:MM:SSZ. The trailing `Z` indicates UTC.
struct tm wanted_struct;
memcpy(&wanted_struct, gmtime(&utc), sizeof(struct tm));
return dc_mprintf("%04i-%02i-%02iT%02i:%02i:%02iZ",
(int)wanted_struct.tm_year+1900, (int)wanted_struct.tm_mon+1, (int)wanted_struct.tm_mday,
(int)wanted_struct.tm_hour, (int)wanted_struct.tm_min, (int)wanted_struct.tm_sec);
}
char* dc_get_location_kml(dc_context_t* context, uint32_t chat_id) char* dc_get_location_kml(dc_context_t* context, uint32_t chat_id)
{ {
@ -150,7 +160,7 @@ char* dc_get_location_kml(dc_context_t* context, uint32_t chat_id)
double latitude = 0.0; double latitude = 0.0;
double longitude = 0.0; double longitude = 0.0;
double accuracy = 0.0; double accuracy = 0.0;
time_t timestamp = 0; char* timestamp = NULL;
dc_strbuilder_t ret; dc_strbuilder_t ret;
dc_strbuilder_init(&ret, 1000); dc_strbuilder_init(&ret, 1000);
@ -175,17 +185,20 @@ char* dc_get_location_kml(dc_context_t* context, uint32_t chat_id)
latitude = sqlite3_column_double(stmt, 0); latitude = sqlite3_column_double(stmt, 0);
longitude = sqlite3_column_double(stmt, 1); longitude = sqlite3_column_double(stmt, 1);
accuracy = sqlite3_column_double(stmt, 2); accuracy = sqlite3_column_double(stmt, 2);
timestamp = sqlite3_column_int64 (stmt, 3); timestamp = get_kml_timestamp(sqlite3_column_int64 (stmt, 3));
dc_strbuilder_catf(&ret, dc_strbuilder_catf(&ret,
"<Placemark>" "<Placemark>"
"<Timestamp><when>%i</when></Timestamp>" // TODO: timestamp must be formatted as 2005-08-21T09:01:00Z "<Timestamp><when>%s</when></Timestamp>"
"<Point><coordinates accuracy=\"%f\">%f,%f,0</coordinates></Point>" "<Point><coordinates accuracy=\"%f\">%f,%f,0</coordinates></Point>"
"</Placemark>\n", "</Placemark>\n",
(int)timestamp, timestamp,
accuracy, accuracy,
latitude, latitude,
longitude); longitude);
free(timestamp);
timestamp = NULL;
} }
dc_strbuilder_cat(&ret, dc_strbuilder_cat(&ret,