Initial import

1 files changed, 140 insertions, 0 deletions

diff --git a/src/get-freebusy-report.c b/src/get-freebusy-report.c
new file mode 100644
index 0000000..f75ab92
--- /dev/null
+++ b/src/get-freebusy-report.c
@@ -0,0 +1,140 @@
+/* vim: set textwidth=80 tabstop=4 smarttab: */
+
+/* Copyright (c) 2008 Michael Rasmussen ([email protected])
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "get-freebusy-report.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual VEVENT to search for is added at runtime.
+ */
+static const char* getrange_request_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:free-busy-query xmlns:D=\"DAV:\""
+"                 xmlns:C=\"urn:ietf:params:xml:ns:caldav\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static const char* getrange_request_foot =
+"</C:free-busy-query>\r\n";
+
+/**
+ * Function for getting freebusy within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_freebusy(caldav_settings* settings, caldav_error* error) {
+	CURL* curl;
+	CURLcode res = 0;
+	char error_buf[CURL_ERROR_SIZE + 1];
+	struct config_data data;
+	struct MemoryStruct chunk;
+	struct MemoryStruct headers;
+	struct curl_slist *http_header = NULL;
+	gboolean result = FALSE;
+	gchar* request = NULL;
+
+	chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+	chunk.size = 0;    /* no data at this point */
+	headers.memory = NULL;
+	headers.size = 0;
+
+	curl = get_curl(settings);
+	if (!curl) {
+		error->code = -1;
+		error->str = g_strdup("Could not initialize libcurl");
+		g_free(settings->file);
+		settings->file = NULL;
+		return TRUE;
+	}
+
+	http_header = curl_slist_append(http_header,
+			"Content-Type: application/xml; charset=\"utf-8\"");
+	http_header = curl_slist_append(http_header, "Depth: 1");
+	http_header = curl_slist_append(http_header, "Expect:");
+	http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+	http_header = curl_slist_append(http_header, "Connection: close");
+	data.trace_ascii = settings->trace_ascii;
+	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+	/* send all data to this function  */
+	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+	/* we pass our 'chunk' struct to the callback function */
+	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+	/* send all data to this function  */
+	curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION,	WriteHeaderCallback);
+	/* we pass our 'headers' struct to the callback function */
+	curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+	if (settings->debug) {
+		curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+		curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+		curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+	}
+	request = g_strdup_printf(
+		"%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s",
+			getrange_request_head, get_caldav_datetime(&settings->start),
+			get_caldav_datetime(&settings->end), getrange_request_foot);
+	/* enable uploading */
+	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request);
+	curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request));
+	curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+	curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+	curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+	curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+	res = curl_easy_perform(curl);
+	if (res != 0) {
+		error->code = -1;
+		error->str = g_strdup_printf("%s", error_buf);
+		g_free(settings->file);
+		settings->file = NULL;
+		result = TRUE;
+	}
+	else {
+		long code;
+		res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+		if (code != 200) {
+			error->code = code;
+			error->str = g_strdup(headers.memory);
+			result = TRUE;
+		}
+		else {
+			/*gchar* report;
+			report = parse_caldav_report(chunk.memory, "calendar-data", "VFREEBUSY");
+			settings->file = g_strdup(report);*/
+			settings->file = g_strdup(chunk.memory);
+			/*g_free(report);*/
+		}
+	}
+	g_free(request);
+	if (chunk.memory)
+		free(chunk.memory);
+	if (headers.memory)
+		free(headers.memory);
+	curl_slist_free_all(http_header);
+	curl_easy_cleanup(curl);
+	return result;
+}