o Add "requests" table

o Add IF NOT EXISTS clause to all CREATE TABLE commands

db/schema.mysql

@@ -4,7 +4,7 @@
 -- 	All rights reserved.
 
 -- A table for mapping domain names to IDs
-CREATE TABLE domains (
+CREATE TABLE IF NOT EXISTS domains (
 	id INT NOT NULL AUTO_INCREMENT,
 	name VARCHAR(255) NOT NULL,
 	firstseen TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -15,7 +15,7 @@ CREATE TABLE domains (
 );
 
 -- A table for reporting hosts
-CREATE TABLE reporters (
+CREATE TABLE IF NOT EXISTS reporters (
 	id INT NOT NULL AUTO_INCREMENT,
 	name VARCHAR(255) NOT NULL,
 	firstseen TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -25,7 +25,7 @@ CREATE TABLE reporters (
 );
 
 -- A table for IP addresses
-CREATE TABLE ipaddr (
+CREATE TABLE IF NOT EXISTS ipaddr (
 	id INT NOT NULL AUTO_INCREMENT,
 	addr VARCHAR(64) NOT NULL,
 	firstseen TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -35,7 +35,7 @@ CREATE TABLE ipaddr (
 );
 
 -- A table for messages
-CREATE TABLE messages (
+CREATE TABLE IF NOT EXISTS messages (
 	id INT NOT NULL AUTO_INCREMENT,
 	date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
 	jobid VARCHAR(128) NOT NULL,
@@ -52,7 +52,7 @@ CREATE TABLE messages (
 );
 
 -- A table for signatures
-CREATE TABLE signatures (
+CREATE TABLE IF NOT EXISTS signatures (
 	id INT NOT NULL AUTO_INCREMENT,
 	message INT NOT NULL,
 	domain INT NOT NULL,
@@ -62,3 +62,13 @@ CREATE TABLE signatures (
 
 	PRIMARY KEY(id)
 );
+
+-- A table for DMARC requests
+CREATE TABLE IF NOT EXISTS requests (
+	id INT NOT NULL AUTO_INCREMENT,
+	domain INT NOT NULL,
+	repaddr VARCHAR(255) NOT NULL,
+	lastsent TIMESTAMP NOT NULL DEFAULT '0000-00-00 00:00:00',
+
+	PRIMARY KEY(id)
+);