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-rw-r--r--logging.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/logging.c b/logging.c
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+++ b/logging.c
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+#include "logging.h"
+
+// Write the line 'str' to the relevant log file such as
+// '#channel.log' or 'nickname.log'. 'ournick' is our own
+// nick and is used to determine which log file to write to.
+// Expects a string in the format:
+// :from!bar@baz PRIVMSG to :hello world
+// With the ":foo!bar@baz "prefix being important.
+// Returns 1 on success or 0 on failure.
+int logprivmsg(char *str, char *ournick) {
+ // First, extract the "from" nick and the "to" nick or channel by splitting up the string
+
+ // Track which space-separated token within this response we're on
+ int counter = 0;
+ // Build array of each space-separated token (TODO - Use counter to stop splitting once we reach some reasonable value - i.e. once we're definitely past commands and into just free text)
+ char tokens[MAXTOKENS][MAXDATASIZE];
+ char *token;
+
+ // Split out the first three space-separated parts of the string, leaving the rest.
+ // This gets us the prefix (containing the "from" nick), the PRIVMSG command (not needed),
+ // and the "to" nick or channel. Plus the rest of the string intact (which is the actual
+ // message).
+ for (int i = 0; i < 3; i++) {
+ // Try to split
+ if ((token = strsep(&str, " ")) == NULL) {
+ printf("Error splitting string for logging, exiting!\n");
+ exit(1);
+ }
+ // Copy into the token array (strlen + 1 to get the NULL terminator)
+ strncpy(tokens[i], token, strlen(token) + 1);
+ counter++;
+ }
+
+ // Extract the username from the prefix
+ extractnickfromprefix(tokens[0]);
+
+ // Remove the leading ":" from the real message
+ stripprefix(str);
+
+ // Build the log filename
+ char filename[MAXCHAR];
+ // If the message was sent to us, then log it in the sender's log file
+ if (strncmp(tokens[2], ournick, strlen(tokens[0])) == 0) {
+ snprintf(filename, MAXCHAR, "%s.log", tokens[0]);
+ } else {
+ // Otherwise log it in the "to" log file
+ snprintf(filename, MAXCHAR, "%s.log", tokens[2]);
+ }
+
+ printf("logprivmsg(): Logging from '%s' to '%s' message '%s' in filename '%s'.\n", tokens[0], tokens[2], str, filename);
+
+ FILE *fp;
+ char line[MAXCHAR];
+
+ int bytes = 0;
+
+ fp = fopen(filename, "a");
+
+ if (fp == NULL) {
+ printf("error: could not open log file '%s' for writing.\n", filename);
+ exit(1);
+ }
+
+ // Get a current time string to prepend - TODO - Make this customisable.
+ time_t rawtime;
+ struct tm * timeinfo;
+ time(&rawtime);
+ timeinfo = localtime(&rawtime);
+ // Strip the trailing newline
+ char timestr[MAXCHAR];
+ snprintf(timestr, MAXCHAR, "%s", asctime(timeinfo));
+ timestr[strlen(timestr) - 1] = '\0';
+
+ // Prepend the time string and "from" nick
+ if (!snprintf(line, MAXCHAR, "%s <%s> %s", timestr, tokens[0], str)) {
+ fprintf(stderr, "Error while log string to write!\n");
+ exit(1);
+ }
+
+ printf("Complete log string to write: '%s', length '%ld'.\n", line, strlen(line));
+
+ // Write complete line to file
+ if ((bytes = fprintf(fp, line)) < 0) {
+ printf("error: could not write to log file.\n");
+ exit(1);
+ }
+
+ fclose(fp);
+ return bytes;
+}