func main() {
var err error
var listenStr = flag.String("proxy", "8888", "Proxy listen port (the port you point your browser to)")
var dmListenStr = flag.String("d", "localhost:8000", "DryMartini listen address")
var connectStr = flag.String("c", "", "DryMartini node to connect to")
var isTest = flag.Bool("test", false, "Indicate this node will be used for running test suite")
var seed int64
flag.Int64Var(&seed, "s", time.Now().UnixNano(), "seed to use for random generation")
// Get the bind and connect connection strings from command-line arguments.
flag.Parse()
log.Printf("proxy listening on:%s\n", *listenStr)
log.Printf("DryMartini opening on:%s\n", *dmListenStr)
log.Printf("DryMartini node connecting to:%s\n", *connectStr)
log.Printf("is Test:%t\n", *isTest)
kademlia.RunningTests = *isTest
kademlia.TestStartTime = time.Now().Local()
err = os.Mkdir("./logs/", os.ModeDir)
logfile, err := os.Create("./logs/complete_log_" + kademlia.TestStartTime.String())
if err != nil {
log.Printf("error creating main log:%s\n", err)
panic(1)
}
dbg.InitDbgOut(logfile)
rand.Seed(seed)
//instantiate
myDryMartini = drymartini.NewDryMartini(*dmListenStr, 4096)
if *connectStr != "" {
success, err := MakePing(myDryMartini, *connectStr)
if !success {
log.Printf("connect to %s failed. err:%s\n", connectStr, err)
panic(1)
}
drymartini.DoJoin(myDryMartini)
}
/*
host, port, errr := kademlia.AddrStrToHostPort(connectStr)
var swarm []*drymartini.DryMartini = drymartini.MakeSwarm(8, int(port))
drymartini.WarmSwarm(myDryMartini, swarm)
*/
kademlia.PrintLocalBuckets(myDryMartini.KademliaInst)
proxy := goproxy.NewProxyHttpServer()
proxy.OnRequest().DoFunc(DoHTTPRequest)
log.Fatal(http.ListenAndServe(":"+*listenStr, proxy))
/*
var stdInReader *bufio.Reader = bufio.NewReader(os.Stdin)
var instStr string
var inst *DryMartiniInstruction
for ;; {
fmt.Printf("δώσε:")//Print prompt
//read new instruction
//ret, err := fmt.Scanln(&instStr)
instStr, err = stdInReader.ReadString('\n')
if err != nil {
log.Printf("Error at Scanf: %s\n", err)
panic(1)
}
//parse line input and create command struct
inst = NewDryMartiniInstruction(instStr)
if inst.IsExit() {
log.Printf("DryMartini exiting.\n\n\nOne for the road, maybe?");
break;
}
//execute new instruction
inst.Execute(myDryMartini)
if (myDryMartini.KademliaInst.DoJoinFlag) {
log.Printf("DoingJoin!\n")
go drymartini.DoJoin(myDryMartini)
}
}
*/
log.Printf("end of main\n")
}
func (kInst *KademliaInstruction) Execute(k *kademlia.Kademlia) (status bool) {
var found bool
var remoteContact *kademlia.Contact
switch {
case kInst.IsExit():
if kademlia.RunningTests {
log.Printf("Executing Exit Instruction\n")
}
return true
case kInst.IsSkip():
if kademlia.RunningTests {
log.Printf("Executing Skip Instruction: _%s_\n", kInst.Data)
}
return true
case kInst.IsPing():
var success bool
if kInst.Addr != "" { //ping host:port
log.Printf("Executing Ping Instruction 'ping Addr:%s\n", kInst.Addr)
remoteHost, remotePort, err := kademlia.AddrStrToHostPort(kInst.Addr)
kademlia.Assert(err == nil, "Error converting AddrToHostPort")
success = kademlia.MakePingCall(k, remoteHost, remotePort)
} else { //ping nodeID
log.Printf("Executing Ping Instruction 'ping nodeID:%s\n", kInst.NodeID.AsString())
var searchRequest *kademlia.SearchRequest
searchRequest = &kademlia.SearchRequest{kInst.NodeID, make(chan *kademlia.Contact)}
k.SearchChannel <- searchRequest
remoteContact = <-searchRequest.ReturnChan
found = (remoteContact != nil)
if found {
success = kademlia.MakePingCall(k, remoteContact.Host, remoteContact.Port)
} else {
log.Printf("Error: Ping, nodeID %s could not be found\n", kInst.NodeID.AsString())
return false
}
}
return success
case kInst.IsStore():
var searchRequest *kademlia.SearchRequest
var success bool
if kademlia.RunningTests {
log.Printf("Executing Store Instruction %s %s %s\n", kInst.NodeID.AsString(), kInst.Key.AsString(), kInst.Data)
}
searchRequest = &kademlia.SearchRequest{kInst.NodeID, make(chan *kademlia.Contact)}
k.SearchChannel <- searchRequest
remoteContact = <-searchRequest.ReturnChan
found = (remoteContact != nil)
if found {
success = kademlia.MakeStore(k, remoteContact, kInst.Key, []byte(kInst.Data))
} else {
log.Printf("Error: Store, nodeID %s could not be found\n", kInst.NodeID.AsString())
return false
}
return success
case kInst.IsFindNode():
var searchRequest *kademlia.SearchRequest
var success bool
if kademlia.RunningTests {
log.Printf("Executing FindNode Instruction %s %s\n", kInst.NodeID.AsString(), kInst.Key.AsString())
}
searchRequest = &kademlia.SearchRequest{kInst.NodeID, make(chan *kademlia.Contact)}
k.SearchChannel <- searchRequest
remoteContact = <-searchRequest.ReturnChan
found = (remoteContact != nil)
if found {
var fsResponseChan chan *kademlia.FindStarCallResponse
var findStarResult *kademlia.FindStarCallResponse
fsResponseChan = make(chan *kademlia.FindStarCallResponse, 1)
go kademlia.MakeFindNodeCall(k, remoteContact, kInst.Key, fsResponseChan)
findStarResult = <-fsResponseChan
success = findStarResult.Responded
if success {
kademlia.Assert(findStarResult.ReturnedFNRes != nil, "findStarResult Struct error in FindNode")
kademlia.PrintArrayOfFoundNodes(&(findStarResult.ReturnedFNRes.Nodes))
}
} else {
log.Printf("Error: FindNode, nodeID %s could not be found\n", kInst.NodeID.AsString())
return false
}
return success
case kInst.IsFindValue():
var searchRequest *kademlia.SearchRequest
var success bool
if kademlia.RunningTests {
log.Printf("Executing FindValue Instruction %s %s\n", kInst.NodeID.AsString(), kInst.Key.AsString())
}
searchRequest = &kademlia.SearchRequest{kInst.NodeID, make(chan *kademlia.Contact)}
k.SearchChannel <- searchRequest
remoteContact = <-searchRequest.ReturnChan
found = (remoteContact != nil)
if found {
var fsResponseChan chan *kademlia.FindStarCallResponse
var findStarResult *kademlia.FindStarCallResponse
fsResponseChan = make(chan *kademlia.FindStarCallResponse, 1)
go kademlia.MakeFindValueCall(k, remoteContact, kInst.Key, fsResponseChan)
findStarResult = <-fsResponseChan
success = findStarResult.Responded
if success {
kademlia.Assert(findStarResult.ReturnedFVRes != nil, "findStarResult Struct error in FindValue")
if findStarResult.ReturnedFVRes.Value != nil {
log.Printf("FindValue: found [%s:%s]\n", kInst.Key.AsString(), string(findStarResult.ReturnedFVRes.Value))
} else {
log.Printf("FindValue: Could not locate value, printing closest nodes\n")
kademlia.PrintArrayOfFoundNodes(&(findStarResult.ReturnedFVRes.Nodes))
}
}
} else {
log.Printf("Error: FindValue, nodeID %s could not be found\n", kInst.NodeID.AsString())
return false
}
return success
case kInst.IsWhoami():
if kademlia.RunningTests {
log.Printf("Executing Whoami Instruction\n")
fmt.Printf("Local Node ID: %s\n", k.ContactInfo.NodeID.AsString())
} else {
fmt.Printf("%s\n", k.ContactInfo.NodeID.AsString())
}
return true
case kInst.IsLocalFindValue():
if kademlia.RunningTests {
log.Printf("Executing LocalFindValue Instruction\n")
}
localvalue, found := k.ValueStore.Get(kInst.Key)
if found {
if kademlia.RunningTests {
fmt.Printf("Value for key %s --> %s\n", kInst.Key.AsString(), string(localvalue))
} else {
fmt.Printf("%s\n", string(localvalue))
}
} else {
if kademlia.RunningTests {
fmt.Printf("Value for Key %s NOT found\n", kInst.Key.AsString())
} else {
fmt.Printf("ERR\n")
}
}
return true
case kInst.IsGetContact():
var searchRequest *kademlia.SearchRequest
if kademlia.RunningTests {
log.Printf("Executing GetContact Instruction %s\n", kInst.NodeID.AsString())
}
searchRequest = &kademlia.SearchRequest{kInst.NodeID, make(chan *kademlia.Contact)}
k.SearchChannel <- searchRequest
remoteContact = <-searchRequest.ReturnChan
found = (remoteContact != nil)
if found {
if kademlia.RunningTests {
log.Printf("GetContact: Addr:%v, Port: %v\n", remoteContact.Host, remoteContact.Port)
} else {
fmt.Printf("%v %v\n", remoteContact.Host, remoteContact.Port)
}
} else {
if kademlia.RunningTests {
log.Printf("GetContact: Could not locate in local buckets nodeID %s\n", kInst.NodeID.AsString())
} else {
fmt.Printf("ERR\n")
}
}
return true
case kInst.IsIterativeStore():
var success bool
var nodes []kademlia.FoundNode
var err error
if kademlia.RunningTests {
log.Printf("Executing iterativeStore Instruction %s %s\n", kInst.Key.AsString(), kInst.Data)
}
//NOTE: the third returned value is dropped on the assumption it would always be nil for this call
success, nodes, _, err = kademlia.IterativeFind(k, kInst.Key, 1) //findType of 1 is FindNode
if err != nil {
log.Printf("IterativeFind: Error %s\n", err)
return false
}
if success {
if nodes != nil {
for _, node := range nodes {
kademlia.MakeStore(k, node.FoundNodeToContact(), kInst.Key, []byte(kInst.Data))
}
kademlia.PrintArrayOfFoundNodes(&nodes)
} else {
kademlia.Assert(false, "iterativeFindStore: TODO: This should probably never happen right?")
}
}
return success
case kInst.IsIterativeFindNode():
var success bool
var nodes []kademlia.FoundNode
//var value []byte //This is probably not needed as iterativeFindNode should never return a value
var err error
if kademlia.RunningTests {
log.Printf("Executing iterativeFindNode Instruction %s\n", kInst.NodeID.AsString())
}
//NOTE: the third returned value is dropped on the assumption it would always be nil for this call
success, nodes, _, err = kademlia.IterativeFind(k, kInst.NodeID, 1) //findType of 1 is FindNode
if err != nil {
log.Printf("IterativeFind: Error %s\n", err)
return false
}
if success {
if nodes != nil {
kademlia.PrintArrayOfFoundNodes(&nodes)
} else {
kademlia.Assert(false, "iterativeFindNode: TODO: This should probably never happen right?")
}
}
return success
case kInst.IsIterativeFindValue():
var success bool
var nodes []kademlia.FoundNode
var value []byte
var err error
if kademlia.RunningTests {
log.Printf("Executing iterativeFindValue Instruction %s\n", kInst.Key.AsString())
}
success, nodes, value, err = kademlia.IterativeFind(k, kInst.Key, 2) //findType of 2 is FindValue
if err != nil {
log.Printf("IterativeFind: Error %s\n", err)
return false
}
if success {
if value != nil {
if kademlia.RunningTests {
fmt.Printf("iterativeFindValue: Value for key %s --> %s\n", kInst.Key.AsString(), string(value))
} else {
fmt.Printf("%v %v\n", nodes[0].NodeID, value)
}
} else {
if kademlia.RunningTests {
fmt.Printf("iterativeFindValue: Value for key %s NOT FOUND\n", kInst.Key.AsString())
kademlia.PrintArrayOfFoundNodes(&nodes)
} else {
fmt.Printf("ERR")
}
}
}
return success
case kInst.IsRunTests():
log.Printf("Executing RunTests!\n")
kademlia.RunTests(kInst.Data)
return true
case kInst.IsPrintLocalBuckets():
log.Printf("Print Local Buckets!\n")
kademlia.PrintLocalBuckets(k)
return true
case kInst.IsPrintLocalData():
log.Printf("Print Local Data!\n")
kademlia.PrintLocalData(k)
return true
}
return false
}
func (dmInst *DryMartiniInstruction) Execute(dm *drymartini.DryMartini) (status bool) {
var err error
switch {
case dmInst.IsExit():
if Verbose {
log.Printf("Executing Exit Instruction\n")
}
return true
case dmInst.IsSkip():
if Verbose {
log.Printf("Executing Skip Instruction: _%s_\n", dmInst.CmdStr)
}
return true
case dmInst.IsPing():
var success bool
if Verbose {
log.Printf("Executing Ping Instruction 'ping Addr:%s\n", dmInst.Addr)
}
remoteHost, remotePort, err := kademlia.AddrStrToHostPort(dmInst.Addr)
if err != nil {
log.Printf("Error converting AddrToHostPort, %s", err)
os.Exit(1)
}
success = drymartini.MakeMartiniPing(dm, remoteHost, remotePort)
return success
case dmInst.IsJoin():
if Verbose {
log.Printf("Executing MartiniJoin Instruction\n")
}
//remoteHost, remotePort, err := kademlia.AddrStrToHostPort(dmInst.Addr)
//drymartini.MakeJoin(dm, remoteHost, remotePort)
//if err != nil {
// log.Printf("Error converting AddrToHostPort, %s", err)
// os.Exit(1)
//}
return true
case dmInst.IsWhoami():
if Verbose {
log.Printf("Executing Whoami Instruction\n")
fmt.Printf("Local Node ID: %s\n", dm.KademliaInst.ContactInfo.NodeID.AsString())
} else {
fmt.Printf("%s\n", dm.KademliaInst.ContactInfo.NodeID.AsString())
}
return true
case dmInst.IsPrintLocalBuckets():
log.Printf("Print Local Buckets!\n")
kademlia.PrintLocalBuckets(dm.KademliaInst)
return true
case dmInst.IsPrintLocalData():
log.Printf("Print Local Data!\n")
//kademlia.PrintLocalData(dm.KademliaInst)
drymartini.PrintLocalData(dm)
return true
case dmInst.IsPrintLocalFlowData():
log.Printf("Print Local FlowData!\n")
drymartini.PrintLocalFlowData(dm)
return true
case dmInst.IsGeneratePath():
log.Printf("Generate Path\n")
drymartini.GeneratePath(dm, dmInst.minNodes, dmInst.maxNodes)
return true
case dmInst.IsBarCrawl():
log.Printf("Bar Crawl (negotiating symmkeys with nodes)")
drymartini.BarCrawl(dm, dmInst.request, dmInst.minNodes, dmInst.maxNodes)
case dmInst.IsFindValue():
log.Printf("Find Value")
var sucess bool
//var nodes[]kademlia.FoundNode
var value []byte
sucess, _, value, err = kademlia.IterativeFind(dm.KademliaInst, dmInst.Key, 2)
if err != nil {
log.Printf("IterativeFind: error %s\n", err)
}
if sucess {
if value != nil {
log.Printf("IterativeFindValue err: success = true. value is nil\n")
}
}
case dmInst.IsSend():
log.Printf("Send %d %s\n", dmInst.FlowIndex, dmInst.request)
drymartini.SendData(dm, dmInst.FlowIndex, dmInst.request)
case dmInst.IsMakeSwarm():
log.Printf("Making swarm: numNodes:%d\n", dmInst.minNodes)
var swarm []*drymartini.DryMartini = drymartini.MakeSwarm(dmInst.minNodes, dmInst.maxNodes, time.Now().UnixNano())
drymartini.WarmSwarm(dm, swarm, rand.New(rand.NewSource(time.Now().UnixNano())))
case dmInst.IsRunTests():
log.Printf("Running tests: numNodes:%d\n", dmInst.minNodes)
drymartini.RunTests(dm, dmInst.minNodes, dmInst.maxNodes, time.Now().UnixNano(), 4, 4)
case dmInst.IsSleep():
log.Printf("Sleeping %d ms\n", dmInst.minNodes)
time.Sleep(time.Millisecond * time.Duration(dmInst.minNodes))
case dmInst.IsBlock():
fmt.Printf("Blocking comm on node\n")
log.Printf("Blocking comm on this node\n")
dm.KademliaInst.KListener.Close()
case dmInst.IsOpen():
fmt.Printf("Accepting comm on node again\n")
log.Printf("Accepting comms again\n")
go http.Serve(dm.KademliaInst.KListener, nil)
case dmInst.IsBCAndSend():
log.Printf("bc and send\n")
success, index := drymartini.FindGoodPath(dm)
if !success {
success, index = drymartini.BarCrawl(dm, dmInst.request, dmInst.minNodes, dmInst.maxNodes)
if !success {
log.Printf("Error: main. bcandsend; bc failed\n")
return
}
}
drymartini.SendData(dm, index, dmInst.request)
}
return false
}