--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/frontlib/net/netprotocol.c	Sun Oct 28 15:12:37 2012 +0100
@@ -0,0 +1,192 @@
+/*
+ * Hedgewars, a free turn based strategy game
+ * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
+ *
+ * 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 2
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "netprotocol.h"
+
+#include "../util/util.h"
+#include "../util/logging.h"
+
+#include "../base64/base64.h"
+
+#include <zlib.h>
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+
+static int fillTeamFromMsg(flib_team *team, char **parts) {
+	team->name = flib_strdupnull(parts[0]);
+	team->grave = flib_strdupnull(parts[1]);
+	team->fort = flib_strdupnull(parts[2]);
+	team->voicepack = flib_strdupnull(parts[3]);
+	team->flag = flib_strdupnull(parts[4]);
+	team->ownerName = flib_strdupnull(parts[5]);
+	if(!team->name || !team->grave || !team->fort || !team->voicepack || !team->flag || !team->ownerName) {
+		return -1;
+	}
+
+	errno = 0;
+	long difficulty = strtol(parts[6], NULL, 10);
+	if(errno) {
+		return -1;
+	}
+
+	for(int i=0; i<HEDGEHOGS_PER_TEAM; i++) {
+		flib_hog *hog = &team->hogs[i];
+		hog->difficulty = difficulty;
+		hog->name = flib_strdupnull(parts[7+2*i]);
+		hog->hat = flib_strdupnull(parts[8+2*i]);
+		if(!hog->name || !hog->hat) {
+			return -1;
+		}
+	}
+
+	// Set some default assumptions as well
+	team->colorIndex = DEFAULT_COLOR_INDEX;
+	team->hogsInGame = DEFAULT_HEDGEHOG_COUNT;
+	team->remoteDriven = true;
+	return 0;
+}
+
+flib_team *flib_team_from_netmsg(char **parts) {
+	flib_team *result = NULL;
+	flib_team *tmpTeam = flib_calloc(1, sizeof(flib_team));
+	if(tmpTeam) {
+		if(!fillTeamFromMsg(tmpTeam, parts)) {
+			result = tmpTeam;
+			tmpTeam = NULL;
+		} else {
+			flib_log_e("Error parsing team from net.");
+		}
+	}
+	flib_team_destroy(tmpTeam);
+	return result;
+}
+
+flib_scheme *flib_scheme_from_netmsg(char **parts) {
+	flib_scheme *result = flib_scheme_create(parts[0]);
+	if(result) {
+		for(int i=0; i<flib_meta.modCount; i++) {
+			result->mods[i] = !strcmp(parts[i+1], "true");
+		}
+		for(int i=0; i<flib_meta.settingCount; i++) {
+			result->settings[i] = atoi(parts[i+flib_meta.modCount+1]);
+		}
+	}
+	return result;
+}
+
+flib_map *flib_map_from_netmsg(char **parts) {
+	flib_map *result = flib_map_create_named(parts[3], parts[0]);
+	if(result) {
+		result->mapgen = atoi(parts[1]);
+		result->mazeSize = atoi(parts[2]);
+		result->templateFilter = atoi(parts[4]);
+	}
+	return result;
+}
+
+int flib_drawnmapdata_from_netmsg(char *netmsg, uint8_t** outbuf, size_t *outlen) {
+	int result = -1;
+
+	// First step: base64 decoding
+	char *base64decout = NULL;
+	size_t base64declen;
+	bool ok = base64_decode_alloc(netmsg, strlen(netmsg), &base64decout, &base64declen);
+	if(ok && base64declen>3) {
+		// Second step: unzip with the QCompress header. That header is just a big-endian
+		// uint32 indicating the length of the uncompressed data.
+		uint8_t *ubyteBuf = (uint8_t*)base64decout;
+		uint32_t unzipLen =
+				(((uint32_t)ubyteBuf[0])<<24)
+				+ (((uint32_t)ubyteBuf[1])<<16)
+				+ (((uint32_t)ubyteBuf[2])<<8)
+				+ ubyteBuf[3];
+		if(unzipLen==0) {
+			*outbuf = NULL;
+			*outlen = 0;
+			result = 0;
+		} else {
+			uint8_t *out = flib_malloc(unzipLen);
+			if(out) {
+				uLongf actualUnzipLen = unzipLen;
+				int resultcode = uncompress(out, &actualUnzipLen, (Bytef*)(base64decout+4), base64declen-4);
+				if(resultcode == Z_OK) {
+					*outbuf = out;
+					*outlen = actualUnzipLen;
+					out = NULL;
+					result = 0;
+				} else {
+					flib_log_e("Uncompressing drawn map failed. Code: %i", resultcode);
+				}
+			}
+			free(out);
+		}
+	} else {
+		flib_log_e("base64 decoding of drawn map failed.");
+	}
+	free(base64decout);
+	return result;
+}
+
+flib_room *flib_room_from_netmsg(char **params) {
+	flib_room *result = NULL;
+	flib_room *tmpRoom = flib_calloc(1, sizeof(flib_room));
+	if(tmpRoom) {
+		tmpRoom->inProgress = !strcmp(params[0], "True");
+		tmpRoom->name = flib_strdupnull(params[1]);
+		tmpRoom->playerCount = atoi(params[2]);
+		tmpRoom->teamCount = atoi(params[3]);
+		tmpRoom->owner = flib_strdupnull(params[4]);
+		tmpRoom->map = flib_strdupnull(params[5]);
+		tmpRoom->scheme = flib_strdupnull(params[6]);
+		tmpRoom->weapons = flib_strdupnull(params[7]);
+		if(tmpRoom->name && tmpRoom->owner && tmpRoom->map && tmpRoom->scheme && tmpRoom->weapons) {
+			result = tmpRoom;
+			tmpRoom = NULL;
+		}
+	}
+	flib_room_destroy(tmpRoom);
+	return result;
+}
+
+int fillRoomArray(flib_room **array, char **params, int count) {
+	for(int i=0; i<count; i++) {
+		array[i] = flib_room_from_netmsg(params + 8*i);
+		if(!array[i]) {
+			return -1;
+		}
+	}
+	return 0;
+}
+
+flib_room **flib_room_array_from_netmsg(char **params, int count) {
+	flib_room **result = flib_calloc(count, sizeof(flib_room*));
+	if(result) {
+		if(fillRoomArray(result, params, count)) {
+			for(int i=0; i<count; i++) {
+				flib_room_destroy(result[i]);
+			}
+			free(result);
+			result = NULL;
+		}
+	}
+	return result;
+}