import from SF CVS

git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/permission.c

@@ -0,0 +1,122 @@
+#include "permission.h"
+
+#include "conf.h"
+#include "list.h"
+#include "log.h"
+
+#include <string.h>
+
+#define PERMISSION_PASSWORD_CHAR	"@"
+#define PERMISSION_SEPERATOR		","
+
+#define PERMISSION_READ_STRING		"read"
+#define PERMISSION_ADD_STRING		"add"
+#define PERMISSION_CONTROL_STRING	"control"
+#define PERMISSION_ADMIN_STRING		"admin"
+
+List * permission_passwords;
+
+unsigned int permission_default;
+
+unsigned int parsePermissions(char * string) {
+	unsigned int permission = 0;
+	char * temp;
+	char * tok;
+
+	if(!string) return 0;
+
+	temp = strtok_r(string,PERMISSION_SEPERATOR,&tok);
+	while(temp) {
+		if(strcmp(temp,PERMISSION_READ_STRING)==0) {
+			permission |= PERMISSION_READ;
+		}
+		else if(strcmp(temp,PERMISSION_ADD_STRING)==0) {
+			permission |= PERMISSION_ADD;
+		}
+		else if(strcmp(temp,PERMISSION_CONTROL_STRING)==0) {
+			permission |= PERMISSION_CONTROL;
+		}
+		else if(strcmp(temp,PERMISSION_ADMIN_STRING)==0) {
+			permission |= PERMISSION_ADMIN;
+		}
+		else {
+			ERROR("uknown permission \"%s\"\n",temp);
+			exit(-1);
+		}
+
+		temp = strtok_r(NULL,PERMISSION_SEPERATOR,&tok);
+	}
+
+	return permission;
+}
+
+void initPermissions() {
+	permission_passwords = makeList(free);
+	char * passwordSets;
+	char * nextSet;
+	char * temp;
+	char * cp1;
+	char * cp2;
+	char * password;
+	unsigned int * permission;
+
+	permission_default = PERMISSION_READ | PERMISSION_ADD | 
+				PERMISSION_CONTROL | PERMISSION_ADMIN;
+
+	if(getConf()[CONF_DEFAULT_PERMISSIONS]) {
+		permission_default = parsePermissions(
+				getConf()[CONF_DEFAULT_PERMISSIONS]);
+	}
+
+	if(!getConf()[CONF_PASSWORD]) return;
+
+	if(!getConf()[CONF_DEFAULT_PERMISSIONS]) permission_default = 0;
+
+	passwordSets = strdup(getConf()[CONF_PASSWORD]);
+
+	nextSet = strtok_r(passwordSets,CONF_CAT_CHAR,&cp1);
+	while(nextSet && strlen(nextSet)) {
+		if(!strstr(nextSet,PERMISSION_PASSWORD_CHAR)) {
+			ERROR("\"%s\" not found in password string \"%s\"\n",
+					PERMISSION_PASSWORD_CHAR,
+					nextSet);
+			exit(-1);
+		}
+
+		if(!(temp = strtok_r(nextSet,PERMISSION_PASSWORD_CHAR,&cp2))) {
+			ERROR("something weird just happend in permission.c\n");
+			exit(-1);
+		}
+		password = temp;
+
+		permission = malloc(sizeof(unsigned int));
+		*permission = parsePermissions(strtok_r(NULL,"",&cp2));
+
+		insertInList(permission_passwords,password,permission);
+
+		nextSet = strtok_r(NULL,CONF_CAT_CHAR,&cp1);
+	}
+
+	sortList(permission_passwords);
+
+	free(passwordSets);
+}
+
+int getPermissionFromPassword(char * password, unsigned int * permission) {
+	void * foundPermission;
+
+	if(findInList(permission_passwords,password,&foundPermission)) {
+		*permission = *((unsigned int *)foundPermission);
+		return 0;
+	}
+
+	return -1;
+}
+
+void finishPermissions() {
+	freeList(permission_passwords);
+}
+
+unsigned int getDefaultPermissions() {
+	return permission_default;
+}