add net.Conn http request checker

2025-05-20 10:35:01 +00:00 · 2025-04-03 03:08:57 +04:00 · 2025-04-03 03:08:57 +04:00 · 2ee3c8311a
commit 2ee3c8311a
parent 5c35029ae7
4 changed files with 279 additions and 142 deletions
--- a/core/http/routes/peerguard.go
+++ b/core/http/routes/peerguard.go
@ -1,80 +0,0 @@
-package routes
-
-import (
-	"context"
-	"time"
-
-	"github.com/gofiber/fiber/v2"
-	"github.com/mudler/edgevpn/pkg/node"
-)
-
-const DefaultInterval = 5 * time.Second
-const Timeout = 20 * time.Second
-
-// TODO connect routes and write a middleware for authorization based on p2p auth providers private keys
-func RegisterPeerguardAuthRoutes(app *fiber.App, e *node.Node) {
-	app.Get("ledger/:bucket/:key", func(c *fiber.Ctx) error {
-		bucket := c.Params("bucket")
-		key := c.Params("key")
-
-		ledger, err := e.Ledger()
-		if err != nil {
-			return err
-		}
-
-		return c.JSON(ledger.CurrentData()[bucket][key])
-	})
-
-	app.Get("ledger/:bucket", func(c *fiber.Ctx) error {
-		bucket := c.Params("bucket")
-
-		ledger, err := e.Ledger()
-		if err != nil {
-			return err
-		}
-
-		return c.JSON(ledger.CurrentData()[bucket])
-	})
-
-	announcing := struct{ State string }{"Announcing"}
-
-	// Store arbitrary data
-	app.Get("ledger/:bucket/:key/:value", func(c *fiber.Ctx) error {
-		bucket := c.Params("bucket")
-		key := c.Params("key")
-		value := c.Params("value")
-
-		ledger, err := e.Ledger()
-		if err != nil {
-			return err
-		}
-
-		ledger.Persist(context.Background(), DefaultInterval, Timeout, bucket, key, value)
-		return c.JSON(announcing)
-	})
-	// Delete data from ledger
-	app.Get("ledger/:bucket", func(c *fiber.Ctx) error {
-		bucket := c.Params("bucket")
-
-		ledger, err := e.Ledger()
-		if err != nil {
-			return err
-		}
-
-		ledger.AnnounceDeleteBucket(context.Background(), DefaultInterval, Timeout, bucket)
-		return c.JSON(announcing)
-	})
-
-	app.Get("ledger/:bucket/:key", func(c *fiber.Ctx) error {
-		bucket := c.Params("bucket")
-		key := c.Params("key")
-
-		ledger, err := e.Ledger()
-		if err != nil {
-			return err
-		}
-
-		ledger.AnnounceDeleteBucketKey(context.Background(), DefaultInterval, Timeout, bucket, key)
-		return c.JSON(announcing)
-	})
-}
--- a/core/p2p/federated_server.go
+++ b/core/p2p/federated_server.go
@ -4,17 +4,36 @@
 package p2p

 import (
+	"bufio"
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
 	"net"
+	"net/http"
+	"slices"
+	"strings"
+	"time"

+	logP2P "github.com/ipfs/go-log/v2"
 	cliP2P "github.com/mudler/LocalAI/core/cli/p2p"
+	edgevpnConfig "github.com/mudler/edgevpn/pkg/config"
+	"github.com/mudler/edgevpn/pkg/logger"
 	"github.com/mudler/edgevpn/pkg/node"
+	"github.com/mudler/edgevpn/pkg/trustzone"
 	"github.com/rs/zerolog/log"
 )

+const Timeout = 20 * time.Second
+
+const (
+	peekBufferSize = 512
+	authHeader     = "X-Auth-Token"
+	headerEnd      = "\r\n\r\n"
+	lineEnd        = "\r\n"
+)
+
 func (fs *FederatedServer) Start(ctx context.Context, p2pCommonFlags cliP2P.P2PCommonFlags) error {
 	p2pCfg := NewP2PConfig(p2pCommonFlags)
 	p2pCfg.NetworkToken = fs.p2ptoken
@ -36,11 +55,26 @@ func (fs *FederatedServer) Start(ctx context.Context, p2pCommonFlags cliP2P.P2PC
 		return err
 	}

-	return fs.proxy(ctx, n)
+	lvl, err := logP2P.LevelFromString(p2pCfg.LogLevel)
+	if err != nil {
+		lvl = logP2P.LevelError
+	}
+	llger := logger.New(lvl)
+
+	aps := []trustzone.AuthProvider{}
+	for ap, providerOpts := range p2pCfg.PeerGuard.AuthProviders {
+		a, err := edgevpnConfig.AuthProvider(llger, ap, providerOpts)
+		if err != nil {
+			log.Warn().Msgf("invalid authprovider: %v", err)
+			continue
+		}
+		aps = append(aps, a)
+	}
+
+	return fs.listener(ctx, n, aps)
 }

-func (fs *FederatedServer) proxy(ctx context.Context, node *node.Node) error {
-
+func (fs *FederatedServer) listener(ctx context.Context, node *node.Node, aps []trustzone.AuthProvider) error {
 	log.Info().Msgf("Allocating service '%s' on: %s", fs.service, fs.listenAddr)
 	// Open local port for listening
 	l, err := net.Listen("tcp", fs.listenAddr)
@ -57,6 +91,7 @@ func (fs *FederatedServer) proxy(ctx context.Context, node *node.Node) error {
 	nodeAnnounce(ctx, node)

 	defer l.Close()
+
 	for {
 		select {
 		case <-ctx.Done():
@ -70,62 +105,243 @@ func (fs *FederatedServer) proxy(ctx context.Context, node *node.Node) error {
 				continue
 			}

-			// Handle connections in a new goroutine, forwarding to the p2p service
 			go func() {
-				workerID := ""
-				if fs.workerTarget != "" {
-					workerID = fs.workerTarget
-				} else if fs.loadBalanced {
-					log.Debug().Msgf("Load balancing request")
-
-					workerID = fs.SelectLeastUsedServer()
-					if workerID == "" {
-						log.Debug().Msgf("Least used server not found, selecting random")
-						workerID = fs.RandomServer()
+				if len(aps) > 0 {
+					if fs.handleHTTP(conn, node, aps) {
+						return
 					}
-				} else {
-					workerID = fs.RandomServer()
-				}
-
-				if workerID == "" {
-					log.Error().Msg("No available nodes yet")
-					fs.sendHTMLResponse(conn, 503, "Sorry, waiting for nodes to connect")
-					return
-				}
-
-				log.Debug().Msgf("Selected node %s", workerID)
-				nodeData, exists := GetNode(fs.service, workerID)
-				if !exists {
-					log.Error().Msgf("Node %s not found", workerID)
-					fs.sendHTMLResponse(conn, 404, "Node not found")
-					return
-				}
-
-				proxyP2PConnection(ctx, node, nodeData.ServiceID, conn)
-				if fs.loadBalanced {
-					fs.RecordRequest(workerID)
 				}
+				fs.proxy(ctx, node, conn)
 			}()
 		}
 	}
 }

-// sendHTMLResponse sends a basic HTML response with a status code and a message.
-// This is extracted to make the HTML content maintainable.
-func (fs *FederatedServer) sendHTMLResponse(conn net.Conn, statusCode int, message string) {
+func (fs *FederatedServer) handleHTTP(conn net.Conn, node *node.Node, aps []trustzone.AuthProvider) bool {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Debug().Msgf("Recovered from panic: %v", r)
+			conn.Close()
+		}
+	}()
+
+	r, err := testForHTTPRequest(conn)
+	if err != nil {
+		return false
+	}
+	defer r.Body.Close()
+	pathParts := strings.Split(strings.TrimPrefix(r.URL.Path, "/ledger/"), "/")
+	announcing := struct{ State string }{"Announcing"}
+
+	// TODO deal with AuthProviders
+	// pubKey := r.Header.Get(authHeader)
+
+	switch r.Method {
+	case http.MethodGet:
+		switch len(pathParts) {
+		case 2: // /ledger/:bucket/:key
+			bucket := pathParts[0]
+			key := pathParts[1]
+
+			ledger, err := node.Ledger()
+			if err != nil {
+				fs.sendRawResponse(conn, http.StatusInternalServerError, "text/plain", []byte(err.Error()))
+				return true
+			}
+
+			fs.sendJSONResponse(conn, http.StatusOK, ledger.CurrentData()[bucket][key])
+
+		case 1: // /ledger/:bucket
+			bucket := pathParts[0]
+
+			ledger, err := node.Ledger()
+			if err != nil {
+				fs.sendRawResponse(conn, http.StatusInternalServerError, "text/plain", []byte(err.Error()))
+				return true
+			}
+
+			fs.sendJSONResponse(conn, http.StatusOK, ledger.CurrentData()[bucket])
+
+		default:
+			fs.sendRawResponse(conn, http.StatusNotFound, "text/plain", []byte("not found"))
+
+		}
+
+	case http.MethodPut:
+		if len(pathParts) == 3 { // /ledger/:bucket/:key/:value
+			bucket := pathParts[0]
+			key := pathParts[1]
+			value := pathParts[2]
+
+			ledger, err := node.Ledger()
+			if err != nil {
+				fs.sendRawResponse(conn, http.StatusInternalServerError, "text/plain", []byte(err.Error()))
+				return true
+			}
+
+			ledger.Persist(context.Background(), DefaultInterval, Timeout, bucket, key, value)
+			fs.sendJSONResponse(conn, http.StatusOK, announcing)
+
+		} else {
+			fs.sendRawResponse(conn, http.StatusNotFound, "text/plain", []byte("not found"))
+		}
+
+	case http.MethodDelete:
+		switch len(pathParts) {
+		case 1: // /ledger/:bucket
+			bucket := pathParts[0]
+
+			ledger, err := node.Ledger()
+			if err != nil {
+				fs.sendRawResponse(conn, http.StatusInternalServerError, "text/plain", []byte(err.Error()))
+				return true
+			}
+
+			ledger.AnnounceDeleteBucket(context.Background(), DefaultInterval, Timeout, bucket)
+			fs.sendJSONResponse(conn, http.StatusOK, announcing)
+
+		case 2: // /ledger/:bucket/:key
+			bucket := pathParts[0]
+			key := pathParts[1]
+
+			ledger, err := node.Ledger()
+			if err != nil {
+				fs.sendRawResponse(conn, http.StatusInternalServerError, "text/plain", []byte(err.Error()))
+				return true
+			}
+
+			ledger.AnnounceDeleteBucketKey(context.Background(), DefaultInterval, Timeout, bucket, key)
+			fs.sendJSONResponse(conn, http.StatusOK, announcing)
+
+		default:
+			fs.sendRawResponse(conn, http.StatusNotFound, "text/plain", []byte("not found"))
+
+		}
+	}
+
+	return true
+}
+
+// testForHTTPRequest peeking the first N bytes from the accepted conn, and trying to match it
+// against the supported http methods, then against the supported route, then if there is auth header
+func testForHTTPRequest(conn net.Conn) (*http.Request, error) {
+	reader := bufio.NewReader(conn)
+
+	peekedData, err := reader.Peek(peekBufferSize)
+	if err != nil && err != bufio.ErrBufferFull {
+		log.Debug().Msgf("Error peeking data: %v", err)
+		return nil, err
+	}
+	peekedString := string(peekedData)
+
+	// 1. Parse Request Line
+	firstLineEnd := strings.Index(peekedString, lineEnd)
+	if firstLineEnd == -1 {
+		log.Debug().Msg("Could not find request line end")
+		return nil, err
+	}
+	requestLine := peekedString[:firstLineEnd]
+	parts := strings.Split(requestLine, " ")
+	if len(parts) != 3 {
+		log.Debug().Msg("Invalid request line format")
+		return nil, err
+	}
+	method := parts[0]
+	uri := parts[1]
+
+	if !slices.Contains([]string{
+		http.MethodGet,
+		http.MethodPut,
+		http.MethodDelete,
+	}, method) {
+		log.Debug().Msg("Unsupported HTTP method")
+		return nil, err
+	}
+	if !strings.HasPrefix(uri, "/ledger") {
+		log.Debug().Msg("Unsupported HTTP route")
+		return nil, err
+	}
+
+	headersPart := peekedString[firstLineEnd+len(lineEnd):]
+	headerEndIndex := strings.Index(headersPart, headerEnd)
+	if headerEndIndex == -1 {
+		log.Debug().Msg("Could not find end of headers within peek buffer")
+		return nil, err
+	}
+	headersString := headersPart[:headerEndIndex]
+	headers := strings.Split(headersString, lineEnd)
+
+	foundAuth := false
+	for _, header := range headers {
+		if strings.HasPrefix(header, authHeader+":") {
+			parts := strings.SplitN(header, ":", 2)
+			if len(parts) == 2 {
+				foundAuth = true
+				break
+			}
+		}
+	}
+
+	if !foundAuth {
+		log.Debug().Msgf("Required header '%s' not found.", authHeader)
+		return nil, err
+	}
+
+	req, err := http.ReadRequest(reader)
+	if err != nil {
+		log.Debug().Msgf("Error reading full request: %v", err)
+		return nil, err
+	}
+	return req, nil
+}
+
+func (fs *FederatedServer) proxy(ctx context.Context, node *node.Node, conn net.Conn) {
+	workerID := ""
+	if fs.workerTarget != "" {
+		workerID = fs.workerTarget
+	} else if fs.loadBalanced {
+		log.Debug().Msgf("Load balancing request")
+
+		workerID = fs.SelectLeastUsedServer()
+		if workerID == "" {
+			log.Debug().Msgf("Least used server not found, selecting random")
+			workerID = fs.RandomServer()
+		}
+	} else {
+		workerID = fs.RandomServer()
+	}
+
+	if workerID == "" {
+		log.Error().Msg("No available nodes yet")
+		fs.sendHTMLResponse(conn, 503, "Sorry, waiting for nodes to connect")
+		return
+	}
+
+	log.Debug().Msgf("Selected node %s", workerID)
+	nodeData, exists := GetNode(fs.service, workerID)
+	if !exists {
+		log.Error().Msgf("Node %s not found", workerID)
+		fs.sendHTMLResponse(conn, 404, "Node not found")
+		return
+	}
+
+	proxyP2PConnection(ctx, node, nodeData.ServiceID, conn)
+	if fs.loadBalanced {
+		fs.RecordRequest(workerID)
+	}
+}
+
+// sendRawResponse sends whatever provided byte data with provided content type header
+func (fs *FederatedServer) sendRawResponse(conn net.Conn, statusCode int, contentType string, data []byte) {
 	defer conn.Close()

-	// Define the HTML content separately for easier maintenance.
-	htmlContent := fmt.Sprintf("<html><body><h1>%s</h1></body></html>\r\n", message)
-
-	// Create the HTTP response with dynamic status code and content.
 	response := fmt.Sprintf(
 		"HTTP/1.1 %d %s\r\n"+
-			"Content-Type: text/html\r\n"+
+			"Content-Type: %s\r\n"+
 			"Connection: close\r\n"+
 			"\r\n"+
 			"%s",
-		statusCode, getHTTPStatusText(statusCode), htmlContent,
+		statusCode, http.StatusText(statusCode), contentType, data,
 	)

 	// Write the response to the client connection.
@ -135,16 +351,21 @@ func (fs *FederatedServer) sendHTMLResponse(conn net.Conn, statusCode int, messa
 	}
 }

-// getHTTPStatusText returns a textual representation of HTTP status codes.
-func getHTTPStatusText(statusCode int) string {
-	switch statusCode {
-	case 503:
-		return "Service Unavailable"
-	case 404:
-		return "Not Found"
-	case 200:
-		return "OK"
-	default:
-		return "Unknown Status"
+// sendJSONResponse marshals provided data to JSON and sends it
+func (fs *FederatedServer) sendJSONResponse(conn net.Conn, statusCode int, v any) {
+	data, err := json.Marshal(v)
+	if err != nil {
+		log.Error().Err(err).Msg("Error JSON marshaling")
 	}
+
+	fs.sendRawResponse(conn, statusCode, "application/json", data)
+}
+
+// sendHTMLResponse sends a basic HTML response with a status code and a message.
+// This is extracted to make the HTML content maintainable.
+func (fs *FederatedServer) sendHTMLResponse(conn net.Conn, statusCode int, message string) {
+	// Define the HTML content separately for easier maintenance.
+	htmlContent := fmt.Sprintf("<html><body><h1>%s</h1></body></html>\r\n", message)
+
+	fs.sendRawResponse(conn, statusCode, "text/html", []byte(htmlContent))
 }
--- a/go.mod
+++ b/go.mod
@ -303,4 +303,4 @@ require (
 	lukechampine.com/blake3 v1.3.0 // indirect
 )

-replace github.com/mudler/edgevpn => github.com/swarmind/edgevpn v0.0.0-20250329011455-c0a96483b1ff
+replace github.com/mudler/edgevpn => github.com/swarmind/edgevpn v0.0.0-20250331231759-326a9e7360b0
--- a/go.sum
+++ b/go.sum
@ -147,8 +147,6 @@ github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7z
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
-github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20240626202019-c118733a29ad h1:dQ93Vd6i25o+zH9vvnZ8mu7jtJQ6jT3D+zE3V8Q49n0=
-github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20240626202019-c118733a29ad/go.mod h1:QIjZ9OktHFG7p+/m3sMvrAJKKdWrr1fZIK0rM6HZlyo=
 github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
@ -459,8 +457,6 @@ github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjY
 github.com/mr-tron/base58 v1.1.2/go.mod h1:BinMc/sQntlIE1frQmRFPUoPA1Zkr8VRgBdjWI2mNwc=
 github.com/mr-tron/base58 v1.2.0 h1:T/HDJBh4ZCPbU39/+c3rRvE0uKBQlU27+QI8LJ4t64o=
 github.com/mr-tron/base58 v1.2.0/go.mod h1:BinMc/sQntlIE1frQmRFPUoPA1Zkr8VRgBdjWI2mNwc=
-github.com/mudler/go-piper v0.0.0-20241023091659-2494246fd9fc h1:RxwneJl1VgvikiX28EkpdAyL4yQVnJMrbquKospjHyA=
-github.com/mudler/go-piper v0.0.0-20241023091659-2494246fd9fc/go.mod h1:O7SwdSWMilAWhBZMK9N9Y/oBDyMMzshE3ju8Xkexwig=
 github.com/mudler/go-processmanager v0.0.0-20240820160718-8b802d3ecf82 h1:FVT07EI8njvsD4tC2Hw8Xhactp5AWhsQWD4oTeQuSAU=
 github.com/mudler/go-processmanager v0.0.0-20240820160718-8b802d3ecf82/go.mod h1:Urp7LG5jylKoDq0663qeBh0pINGcRl35nXdKx82PSoU=
 github.com/mudler/water v0.0.0-20221010214108-8c7313014ce0 h1:Qh6ghkMgTu6siFbTf7L3IszJmshMhXxNL4V+t7IIA6w=
@ -703,8 +699,8 @@ github.com/swaggo/files/v2 v2.0.0 h1:hmAt8Dkynw7Ssz46F6pn8ok6YmGZqHSVLZ+HQM7i0kw
 github.com/swaggo/files/v2 v2.0.0/go.mod h1:24kk2Y9NYEJ5lHuCra6iVwkMjIekMCaFq/0JQj66kyM=
 github.com/swaggo/swag v1.16.3 h1:PnCYjPCah8FK4I26l2F/KQ4yz3sILcVUN3cTlBFA9Pg=
 github.com/swaggo/swag v1.16.3/go.mod h1:DImHIuOFXKpMFAQjcC7FG4m3Dg4+QuUgUzJmKjI/gRk=
-github.com/swarmind/edgevpn v0.0.0-20250329011455-c0a96483b1ff h1:tAZL+yhXDkwSkkjmPWMk+iBJ/t1MP43ntJiQA4Q5+kw=
-github.com/swarmind/edgevpn v0.0.0-20250329011455-c0a96483b1ff/go.mod h1:bGUdGQzwLOuMs3SII1N6SazoI1qQ1ekxdxNatOCS5ZM=
+github.com/swarmind/edgevpn v0.0.0-20250331231759-326a9e7360b0 h1:1IzdOtFh9IubHt/7kkSO56chnwHF3Yp7DsWSpXTaMgE=
+github.com/swarmind/edgevpn v0.0.0-20250331231759-326a9e7360b0/go.mod h1:bGUdGQzwLOuMs3SII1N6SazoI1qQ1ekxdxNatOCS5ZM=
 github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
 github.com/thxcode/gguf-parser-go v0.1.0 h1:J4QruXyEQGjrAKeKZFlsD2na9l4XF5+bjR194d+wJS4=
 github.com/thxcode/gguf-parser-go v0.1.0/go.mod h1:Tn1PsO/YDEtLIxm1+QDCjIIH9L/9Sr7+KpxZKm0sEuE=