Started full rewrite in C++.

1 files changed, 121 insertions, 0 deletions

diff --git a/calendar.cpp b/calendar.cpp
new file mode 100644
index 00000000..d0476583
--- /dev/null
+++ b/calendar.cpp
@@ -0,0 +1,121 @@
+#include "calendar.h"
+
+#include <sys/stat.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include "parse.h"
+#include "err.h"
+
+int read_vcalendar(vcomponent* cal, char* path) {
+
+	struct stat statbuf;
+	if (stat (path, &statbuf) != 0) {
+		fprintf(stderr,
+				"Error stating file or directory, errno = %i\npath = [%s]\n",
+				errno, path);
+	}
+
+	int type  = statbuf.st_mode & 0777000;
+	int chmod = statbuf.st_mode & 0777;
+	INFO_F("file has mode 0%o, with chmod = 0%o", type, chmod);
+
+	switch (type) {
+		case S_IFREG: handle_file(cal, path); break;
+		case S_IFDIR: handle_dir (cal, path); break;
+		case S_IFLNK:
+			ERR("Found symlink, can't be bothered to check it further.");
+			break;
+
+		default: ;
+	}
+
+	return 0;
+}
+
+int handle_file(vcomponent* cal, char* path) {
+	INFO("Parsing a single file");
+
+	char* resolved_path = realpath(path, NULL);
+	open_ics (resolved_path, cal);
+	free (resolved_path);
+
+	return 0;
+}
+
+
+int handle_dir(vcomponent* cal, char* path) {
+	INFO("Parsing a directory");
+	DIR* dir = opendir(path);
+
+	/* Buffer for holding search path and filename */
+	char buf[PATH_MAX];
+	strcpy(buf, path);
+	int path_len = strlen(path) + 1;
+
+	/* Slash to guarantee we have at least one */
+	buf[path_len - 1] = '/';
+
+	struct dirent* d;
+	while ((d = readdir(dir)) != NULL) {
+		/* Check that it's a regular file */
+		if (d->d_type != DT_REG) continue;
+
+		/* Append filename with currentt searchpath */
+		strcat(buf, d->d_name);
+		char* resolved_path = realpath(buf, NULL);
+		/* Remove file part from combined path */
+		buf[path_len] = '\0';
+
+		open_ics (resolved_path, cal);
+
+		free (resolved_path);
+	}
+
+	closedir(dir);
+	return 0;
+}
+
+int get_extension(const char* filename, char* ext, ssize_t max_len) {
+	int ext_idx = -1;
+	ext[0] = '\0';
+	for (int i = 0; filename[i] != '\0'; i++) {
+		if (filename[i] == '.') ext_idx = i + 1;
+		if (filename[i] == '/') ext_idx = -1;
+	}
+
+	if (ext_idx == -1) return 0;
+
+	int ext_len = 0;
+	for (int i = 0; i < max_len; i++, ext_len++) {
+		char c = filename[i + ext_idx];
+		if (c == '\0') break;
+		ext[i] = c;
+	}
+	ext[ext_len] = '\0';
+	return ext_len;
+}
+
+int check_ext (const char* path, const char* ext) {
+	char buf[10];
+	int has_ext = get_extension(path, buf, 9);
+
+	return has_ext && strcmp(buf, ext) == 0;
+}
+
+int open_ics (char* resolved_path, vcomponent* cal) {
+	puts(resolved_path);
+	if (! check_ext(resolved_path, "ics") ) return 2;
+
+	FILE* f = fopen(resolved_path, "r");
+
+	if (f == NULL) return 1;
+
+	parse_file(resolved_path, f, cal);
+	fclose(f);
+
+	return 0;
+}
+