[Fixes #93] Disable logging by default

src/log.cpp

@@ -1,5 +1,7 @@
 #include "log.h"
 
+#include <sys/stat.h>
+
 #include "main.h"
 
 
@@ -13,40 +15,53 @@ static std::string replaceAll(std::string subject, const std::string& search, co
 	return subject;
 }
 
+void Log::init()
+{
+	struct stat buffer;
+	if( stat(FILEACTIVE, &buffer) == 0) {
+		_logActive = 1;
+	} else {
+		_logActive = 0;
+	}
+}
 
 int Log::logWithLevel(unsigned int level, const char *str ...)
 {
-	FILE *fp = iv_fopen(FILEPATH, "a");
+	if ( _logActive == 1 ) { 
+		FILE *fp = iv_fopen(FILEPATH, "a");
 
-	char outerBuffer[2048];
-	char innerBuffer[1500];
+		char outerBuffer[2048];
+		char innerBuffer[1500];
 
-	va_list args;
-	va_start(args, str);
-	vsnprintf(innerBuffer, sizeof(innerBuffer), str, args);
-	va_end(args);
+		va_list args;
+		va_start(args, str);
+		vsnprintf(innerBuffer, sizeof(innerBuffer), str, args);
+		va_end(args);
 
-	const char *levelsStrings[] = {"debug", "info", "warn", "error"};
-	if (level > sizeof(levelsStrings) - 1) {
-		level = sizeof(levelsStrings) - 1;
-	}
+		const char *levelsStrings[] = {"debug", "info", "warn", "error"};
+		if (level > sizeof(levelsStrings) - 1) {
+			level = sizeof(levelsStrings) - 1;
+		}
 
-	// As we are writing HTML logs, we must escape the HTML special characters!
-	std::string escaped = replaceAll(innerBuffer, "&", "&amp;");
-	escaped = replaceAll(escaped, "<", "&lt;");
-	escaped = replaceAll(escaped, ">", "&gt;");
+		// As we are writing HTML logs, we must escape the HTML special characters!
+		std::string escaped = replaceAll(innerBuffer, "&", "&amp;");
+		escaped = replaceAll(escaped, "<", "&lt;");
+		escaped = replaceAll(escaped, ">", "&gt;");
 
-	time_t ts = time(NULL);
-	struct tm* tm_info;
-	tm_info = gmtime(&ts);
-	char time_buffer[32];
-	strftime(time_buffer, sizeof(time_buffer), "%Y:%m:%d %H:%M:%S", tm_info);
+		time_t ts = time(NULL);
+		struct tm* tm_info;
+		tm_info = gmtime(&ts);
+		char time_buffer[32];
+		strftime(time_buffer, sizeof(time_buffer), "%Y:%m:%d %H:%M:%S", tm_info);
 
-	snprintf(outerBuffer, sizeof(outerBuffer), "[%s][%s] %s<br>\n", time_buffer, levelsStrings[level], escaped.c_str());
-	int written = iv_fwrite(outerBuffer, sizeof(char), strlen(outerBuffer), fp);
+		snprintf(outerBuffer, sizeof(outerBuffer), "[%s][%s] %s<br>\n", time_buffer, levelsStrings[level], escaped.c_str());
+		int written = iv_fwrite(outerBuffer, sizeof(char), strlen(outerBuffer), fp);
 
-	iv_fclose(fp);
+		iv_fclose(fp);
 
-	return written;
+		return written;
+	} else {
+		return 0;
+	}
 }
 

src/log.h

@@ -25,14 +25,20 @@ class Log
 		return instance;
 	}
 
+	void init();
+
 	Log(Log const&) = delete;
 	void operator=(Log const&) = delete;
 
 private:
 	const char *DIR = FLASHDIR;
 	const char *FILEPATH = FLASHDIR "/plop-reader-logs.html";
+	const char *FILEACTIVE = FLASHDIR "/plop-reader-activate-log.txt";
+	int _logActive = 1;
 
-	Log() {};
+	Log() {
+		init();
+	};
 	~Log() {};
 };