a8db2a9

api/client.go

@@ -17,14 +17,20 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
 	"net"
 	"net/http"
 	"net/url"
+	"os"
+	"path/filepath"
 	"runtime"
+	"strings"
+	"time"
 
+	"github.com/ollama/ollama/auth"
 	"github.com/ollama/ollama/envconfig"
 	"github.com/ollama/ollama/format"
 	"github.com/ollama/ollama/version"
@@ -374,3 +380,27 @@ func (c *Client) Version(ctx context.Context) (string, error) {
 
 	return version.Version, nil
 }
+
+func Authorization(ctx context.Context, request *http.Request) (string, error) {
+	data := []byte(fmt.Sprintf("%s,%s,%d", request.Method, request.URL.RequestURI(), time.Now().Unix()))
+
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return "", err
+	}
+
+	knownHostsFile, err := os.OpenFile(filepath.Join(home, ".ollama", "known_hosts"), os.O_CREATE|os.O_RDWR|os.O_APPEND, 0600)
+	if err != nil {
+		return "", err
+	}
+	defer knownHostsFile.Close()
+
+	token, err := auth.Sign(ctx, data)
+	if err != nil {
+		return "", err
+	}
+
+	// interleave request data into the token
+	key, sig, _ := strings.Cut(token, ":")
+	return fmt.Sprintf("%s:%s:%s", key, base64.StdEncoding.EncodeToString(data), sig), nil
+}

api/types.go

@@ -267,6 +267,7 @@ type PullRequest struct {
 type ProgressResponse struct {
 	Status    string `json:"status"`
 	Digest    string `json:"digest,omitempty"`
+	Quantize  string `json:"quantize,omitempty"`
 	Total     int64  `json:"total,omitempty"`
 	Completed int64  `json:"completed,omitempty"`
 }

auth/auth.go

@@ -10,42 +10,37 @@ import (
 	"log/slog"
 	"os"
 	"path/filepath"
-	"strings"
 
 	"golang.org/x/crypto/ssh"
 )
 
 const defaultPrivateKey = "id_ed25519"
 
-func keyPath() (string, error) {
+func keyPath() (ssh.Signer, error) {
 	home, err := os.UserHomeDir()
 	if err != nil {
-		return "", err
-	}
-
-	return filepath.Join(home, ".ollama", defaultPrivateKey), nil
-}
-
-func GetPublicKey() (string, error) {
-	keyPath, err := keyPath()
-	if err != nil {
-		return "", err
+		return nil, err
 	}
 
+	keyPath := filepath.Join(home, ".ollama", defaultPrivateKey)
 	privateKeyFile, err := os.ReadFile(keyPath)
 	if err != nil {
 		slog.Info(fmt.Sprintf("Failed to load private key: %v", err))
-		return "", err
+		return nil, err
 	}
 
-	privateKey, err := ssh.ParsePrivateKey(privateKeyFile)
+	return ssh.ParsePrivateKey(privateKeyFile)
+}
+
+func GetPublicKey() (ssh.PublicKey, error) {
+	privateKey, err := keyPath()
+	// if privateKey, try public key directly
+
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
-	publicKey := ssh.MarshalAuthorizedKey(privateKey.PublicKey())
-
-	return strings.TrimSpace(string(publicKey)), nil
+	return privateKey.PublicKey(), nil
 }
 
 func NewNonce(r io.Reader, length int) (string, error) {
@@ -58,25 +53,20 @@ func NewNonce(r io.Reader, length int) (string, error) {
 }
 
 func Sign(ctx context.Context, bts []byte) (string, error) {
-	keyPath, err := keyPath()
-	if err != nil {
-		return "", err
-	}
-
-	privateKeyFile, err := os.ReadFile(keyPath)
-	if err != nil {
-		slog.Info(fmt.Sprintf("Failed to load private key: %v", err))
-		return "", err
-	}
-
-	privateKey, err := ssh.ParsePrivateKey(privateKeyFile)
+	privateKey, err := keyPath()
 	if err != nil {
 		return "", err
 	}
 
 	// get the pubkey, but remove the type
-	publicKey := ssh.MarshalAuthorizedKey(privateKey.PublicKey())
-	parts := bytes.Split(publicKey, []byte(" "))
+	publicKey, err := GetPublicKey()
+	if err != nil {
+		return "", err
+	}
+
+	publicKeyBytes := ssh.MarshalAuthorizedKey(publicKey)
+
+	parts := bytes.Split(publicKeyBytes, []byte(" "))
 	if len(parts) < 2 {
 		return "", fmt.Errorf("malformed public key")
 	}

cmd/cmd.go

@@ -7,6 +7,7 @@ import (
 	"crypto/ed25519"
 	"crypto/rand"
 	"crypto/sha256"
+	"encoding/json"
 	"encoding/pem"
 	"errors"
 	"fmt"
@@ -15,6 +16,7 @@ import (
 	"math"
 	"net"
 	"net/http"
+	"net/url"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -78,6 +80,7 @@ func CreateHandler(cmd *cobra.Command, args []string) error {
 	status := "transferring model data"
 	spinner := progress.NewSpinner(status)
 	p.Add(status, spinner)
+	defer p.Stop()
 
 	for i := range modelfile.Commands {
 		switch modelfile.Commands[i].Name {
@@ -112,16 +115,17 @@ func CreateHandler(cmd *cobra.Command, args []string) error {
 				path = tempfile
 			}
 
-			digest, err := createBlob(cmd, client, path)
+			// spinner.Stop()
+			digest, err := createBlob(cmd, client, path, spinner)
 			if err != nil {
 				return err
 			}
-
 			modelfile.Commands[i].Args = "@" + digest
 		}
 	}
 
 	bars := make(map[string]*progress.Bar)
+	var quantizeSpin *progress.Spinner
 	fn := func(resp api.ProgressResponse) error {
 		if resp.Digest != "" {
 			spinner.Stop()
@@ -134,11 +138,20 @@ func CreateHandler(cmd *cobra.Command, args []string) error {
 			}
 
 			bar.Set(resp.Completed)
+		} else if resp.Quantize != "" {
+			spinner.Stop()
+
+			if quantizeSpin != nil {
+				quantizeSpin.SetMessage(resp.Status)
+			} else {
+				quantizeSpin = progress.NewSpinner(resp.Status)
+				p.Add("quantize", quantizeSpin)
+			}
 		} else if status != resp.Status {
 			spinner.Stop()
 
 			status = resp.Status
-			spinner = progress.NewSpinner(status)
+			spinner := progress.NewSpinner(status)
 			p.Add(status, spinner)
 		}
 
@@ -263,13 +276,22 @@ func tempZipFiles(path string) (string, error) {
 	return tempfile.Name(), nil
 }
 
-func createBlob(cmd *cobra.Command, client *api.Client, path string) (string, error) {
+var ErrBlobExists = errors.New("blob exists")
+
+func createBlob(cmd *cobra.Command, client *api.Client, path string, spinner *progress.Spinner) (string, error) {
 	bin, err := os.Open(path)
 	if err != nil {
 		return "", err
 	}
 	defer bin.Close()
 
+	// Get file info to retrieve the size
+	fileInfo, err := bin.Stat()
+	if err != nil {
+		return "", err
+	}
+	fileSize := fileInfo.Size()
+
 	hash := sha256.New()
 	if _, err := io.Copy(hash, bin); err != nil {
 		return "", err
@@ -279,13 +301,157 @@ func createBlob(cmd *cobra.Command, client *api.Client, path string) (string, er
 		return "", err
 	}
 
+	var pw progressWriter
+	// Create a progress bar and start a goroutine to update it
+	// JK Let's use a percentage
+
+	//bar := progress.NewBar("transferring model data...", fileSize, 0)
+	//p.Add("transferring model data", bar)
+
+	status := "transferring model data 0%"
+	spinner.SetMessage(status)
+
+	ticker := time.NewTicker(60 * time.Millisecond)
+	done := make(chan struct{})
+	defer close(done)
+
+	go func() {
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ticker.C:
+				spinner.SetMessage(fmt.Sprintf("transferring model data %d%%", int(100*pw.n/fileSize)))
+			case <-done:
+				spinner.SetMessage("transferring model data 100%")
+				return
+			}
+		}
+	}()
+
 	digest := fmt.Sprintf("sha256:%x", hash.Sum(nil))
-	if err = client.CreateBlob(cmd.Context(), digest, bin); err != nil {
+
+	// We check if we can find the models directory locally
+	// If we can, we return the path to the directory
+	// If we can't, we return an error
+	// If the blob exists already, we return the digest
+	dest, err := getLocalPath(cmd.Context(), digest)
+
+	if errors.Is(err, ErrBlobExists) {
+		return digest, nil
+	}
+
+	// Successfully found the model directory
+	if err == nil {
+		// Copy blob in via OS specific copy
+		// Linux errors out to use io.copy
+		err = localCopy(path, dest)
+		if err == nil {
+			return digest, nil
+		}
+
+		// Default copy using io.copy
+		err = defaultCopy(path, dest)
+		if err == nil {
+			return digest, nil
+		}
+	}
+
+	// If at any point copying the blob over locally fails, we default to the copy through the server
+	if err = client.CreateBlob(cmd.Context(), digest, io.TeeReader(bin, &pw)); err != nil {
 		return "", err
 	}
 	return digest, nil
 }
 
+type progressWriter struct {
+	n int64
+}
+
+func (w *progressWriter) Write(p []byte) (n int, err error) {
+	w.n += int64(len(p))
+	return len(p), nil
+}
+
+func getLocalPath(ctx context.Context, digest string) (string, error) {
+	ollamaHost := envconfig.Host
+
+	client := http.DefaultClient
+	base := &url.URL{
+		Scheme: ollamaHost.Scheme,
+		Host:   net.JoinHostPort(ollamaHost.Host, ollamaHost.Port),
+	}
+
+	data, err := json.Marshal(digest)
+	if err != nil {
+		return "", err
+	}
+
+	reqBody := bytes.NewReader(data)
+	path := fmt.Sprintf("/api/blobs/%s", digest)
+	requestURL := base.JoinPath(path)
+	request, err := http.NewRequestWithContext(ctx, http.MethodPost, requestURL.String(), reqBody)
+	if err != nil {
+		return "", err
+	}
+
+	authz, err := api.Authorization(ctx, request)
+	if err != nil {
+		return "", err
+	}
+
+	request.Header.Set("Authorization", authz)
+	request.Header.Set("User-Agent", fmt.Sprintf("ollama/%s (%s %s) Go/%s", version.Version, runtime.GOARCH, runtime.GOOS, runtime.Version()))
+	request.Header.Set("X-Redirect-Create", "1")
+
+	resp, err := client.Do(request)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusTemporaryRedirect {
+		dest := resp.Header.Get("LocalLocation")
+
+		return dest, nil
+	}
+	return "", ErrBlobExists
+}
+
+func defaultCopy(path string, dest string) error {
+	// This function should be called if the server is local
+	// It should find the model directory, copy the blob over, and return the digest
+	dirPath := filepath.Dir(dest)
+
+	if err := os.MkdirAll(dirPath, 0o755); err != nil {
+		return err
+	}
+
+	// Copy blob over
+	sourceFile, err := os.Open(path)
+	if err != nil {
+		return fmt.Errorf("could not open source file: %v", err)
+	}
+	defer sourceFile.Close()
+
+	destFile, err := os.Create(dest)
+	if err != nil {
+		return fmt.Errorf("could not create destination file: %v", err)
+	}
+	defer destFile.Close()
+
+	_, err = io.CopyBuffer(destFile, sourceFile, make([]byte, 4*1024*1024))
+	if err != nil {
+		return fmt.Errorf("error copying file: %v", err)
+	}
+
+	err = destFile.Sync()
+	if err != nil {
+		return fmt.Errorf("error flushing file: %v", err)
+	}
+
+	return nil
+}
+
 func RunHandler(cmd *cobra.Command, args []string) error {
 	interactive := true
 
@@ -379,11 +545,13 @@ func errFromUnknownKey(unknownKeyErr error) error {
 	if len(matches) > 0 {
 		serverPubKey := matches[0]
 
-		localPubKey, err := auth.GetPublicKey()
+		publicKey, err := auth.GetPublicKey()
 		if err != nil {
 			return unknownKeyErr
 		}
 
+		localPubKey := strings.TrimSpace(string(ssh.MarshalAuthorizedKey(publicKey)))
+
 		if runtime.GOOS == "linux" && serverPubKey != localPubKey {
 			// try the ollama service public key
 			svcPubKey, err := os.ReadFile("/usr/share/ollama/.ollama/id_ed25519.pub")

cmd/copy_darwin.go

@@ -0,0 +1,23 @@
+package cmd
+
+import (
+	"os"
+	"path/filepath"
+
+	"golang.org/x/sys/unix"
+)
+
+func localCopy(src, target string) error {
+	dirPath := filepath.Dir(target)
+
+	if err := os.MkdirAll(dirPath, 0o755); err != nil {
+		return err
+	}
+
+	err := unix.Clonefile(src, target, 0)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

cmd/copy_linux.go

@@ -0,0 +1,7 @@
+package cmd
+
+import "errors"
+
+func localCopy(src, target string) error {
+	return errors.New("no local copy implementation for linux")
+}

cmd/copy_windows.go

@@ -0,0 +1,67 @@
+//go:build windows
+// +build windows
+
+package cmd
+
+import (
+	"os"
+	"path/filepath"
+	"syscall"
+	"unsafe"
+)
+
+func localCopy(src, target string) error {
+	// Create target directory if it doesn't exist
+	dirPath := filepath.Dir(target)
+	if err := os.MkdirAll(dirPath, 0o755); err != nil {
+		return err
+	}
+
+	// Open source file
+	sourceFile, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer sourceFile.Close()
+
+	// Create target file
+	targetFile, err := os.Create(target)
+	if err != nil {
+		return err
+	}
+	defer targetFile.Close()
+
+	// Use CopyFileExW to copy the file
+	err = copyFileEx(src, target)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func copyFileEx(src, dst string) error {
+	kernel32 := syscall.NewLazyDLL("kernel32.dll")
+	copyFileEx := kernel32.NewProc("CopyFileExW")
+
+	srcPtr, err := syscall.UTF16PtrFromString(src)
+	if err != nil {
+		return err
+	}
+
+	dstPtr, err := syscall.UTF16PtrFromString(dst)
+	if err != nil {
+		return err
+	}
+
+	r1, _, err := copyFileEx.Call(
+		uintptr(unsafe.Pointer(srcPtr)),
+		uintptr(unsafe.Pointer(dstPtr)),
+		0, 0, 0, 0)
+
+	if r1 == 0 {
+		return err
+	}
+
+	return nil
+}

llm/llm.go

@@ -10,10 +10,17 @@ package llm
 // #cgo linux,arm64 LDFLAGS: -L${SRCDIR}/build/linux/arm64_static -L${SRCDIR}/build/linux/arm64_static/src -L${SRCDIR}/build/linux/arm64_static/ggml/src
 // #include <stdlib.h>
 // #include "llama.h"
+// bool update_quantize_progress(float progress, void* data) {
+//  *((float*)data) = progress;
+// 	return true;
+// }
 import "C"
 import (
 	"fmt"
 	"unsafe"
+	"time"
+
+	"github.com/ollama/ollama/api"
 )
 
 // SystemInfo is an unused example of calling llama.cpp functions using CGo
@@ -21,7 +28,7 @@ func SystemInfo() string {
 	return C.GoString(C.llama_print_system_info())
 }
 
-func Quantize(infile, outfile string, ftype fileType) error {
+func Quantize(infile, outfile string, ftype fileType, fn func(resp api.ProgressResponse), tensorCount int) error {
 	cinfile := C.CString(infile)
 	defer C.free(unsafe.Pointer(cinfile))
 
@@ -32,6 +39,40 @@ func Quantize(infile, outfile string, ftype fileType) error {
 	params.nthread = -1
 	params.ftype = ftype.Value()
 
+	// Initialize "global" to store progress
+	store := C.malloc(C.sizeof_float)
+    defer C.free(unsafe.Pointer(store))
+
+    // Initialize store value, e.g., setting initial progress to 0
+    *(*C.float)(store) = 0.0
+
+	params.quantize_callback_data = store
+	params.quantize_callback = (C.llama_progress_callback)(C.update_quantize_progress)
+
+	ticker := time.NewTicker(60 * time.Millisecond)
+	done := make(chan struct{})
+	defer close(done)
+
+	go func() {
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ticker.C:
+                fn(api.ProgressResponse{
+                    Status:   fmt.Sprintf("quantizing model %d/%d", int(*((*C.float)(store))), tensorCount),
+                    Quantize: "quant",
+                })			
+				fmt.Println("Progress: ", *((*C.float)(store)))
+			case <-done:
+                fn(api.ProgressResponse{
+                    Status:   fmt.Sprintf("quantizing model %d/%d", tensorCount, tensorCount),
+                    Quantize: "quant",
+                })
+				return
+			}
+		}
+	}()
+
 	if rc := C.llama_model_quantize(cinfile, coutfile, &params); rc != 0 {
 		return fmt.Errorf("llama_model_quantize: %d", rc)
 	}

llm/patches/10-quantize-progress.diff

@@ -0,0 +1,53 @@
+From fa509abf281177eacdc71a2a14432c4e6ed74a47 Mon Sep 17 00:00:00 2001
+From: Josh Yan <jyan00017@gmail.com>
+Date: Wed, 10 Jul 2024 12:58:31 -0700
+Subject: [PATCH] quantize callback
+
+---
+ llama.cpp | 8 ++++++++
+ llama.h   | 3 +++
+ 2 files changed, 11 insertions(+)
+
+diff --git a/llama.cpp b/llama.cpp
+index 61948751..d3126510 100644
+--- a/llama.cpp
++++ b/llama.cpp
+@@ -15586,6 +15586,12 @@ static void llama_model_quantize_internal(const std::string & fname_inp, const s
+     const auto tn = LLM_TN(model.arch);
+     new_ofstream(0);
+     for (int i = 0; i < ml.n_tensors; ++i) {
++        if (params->quantize_callback){
++            if (!params->quantize_callback(i, params->quantize_callback_data)) {
++                return;
++            }
++        }
++
+         auto weight = ml.get_weight(i);
+         struct ggml_tensor * tensor = weight->tensor;
+         if (weight->idx != cur_split && params->keep_split) {
+@@ -16119,6 +16125,8 @@ struct llama_model_quantize_params llama_model_quantize_default_params() {
+         /*.keep_split                  =*/ false,
+         /*.imatrix                     =*/ nullptr,
+         /*.kv_overrides                =*/ nullptr,
++        /*.quantize_callback           =*/ nullptr,
++        /*.quantize_callback_data      =*/ nullptr,
+     };
+ 
+     return result;
+diff --git a/llama.h b/llama.h
+index da310ffa..3cbe6023 100644
+--- a/llama.h
++++ b/llama.h
+@@ -337,6 +337,9 @@ extern "C" {
+         bool keep_split;                     // quantize to the same number of shards
+         void * imatrix;                      // pointer to importance matrix data
+         void * kv_overrides;                 // pointer to vector containing overrides
++
++        llama_progress_callback quantize_callback;   // callback to report quantization progress
++        void * quantize_callback_data;               // user data for the callback
+     } llama_model_quantize_params;
+ 
+     // grammar types
+-- 
+2.39.3 (Apple Git-146)
+

progress/spinner.go

@@ -31,6 +31,10 @@ func NewSpinner(message string) *Spinner {
 	return s
 }
 
+func (s *Spinner) SetMessage(message string) {
+	s.message = message
+}
+
 func (s *Spinner) String() string {
 	var sb strings.Builder
 	if len(s.message) > 0 {

server/images.go

@@ -32,6 +32,7 @@ import (
 	"github.com/ollama/ollama/types/errtypes"
 	"github.com/ollama/ollama/types/model"
 	"github.com/ollama/ollama/version"
+	"golang.org/x/crypto/ssh"
 )
 
 var errCapabilityCompletion = errors.New("completion")
@@ -421,13 +422,12 @@ func CreateModel(ctx context.Context, name model.Name, modelFileDir, quantizatio
 					if err != nil {
 						return err
 					}
-
+					tensorCount := len(baseLayer.GGML.Tensors())
+					
 					ft := baseLayer.GGML.KV().FileType()
 					if !slices.Contains([]string{"F16", "F32"}, ft.String()) {
 						return errors.New("quantization is only supported for F16 and F32 models")
 					} else if want != ft {
-						fn(api.ProgressResponse{Status: fmt.Sprintf("quantizing %s model to %s", ft, quantization)})
-
 						blob, err := GetBlobsPath(baseLayer.Digest)
 						if err != nil {
 							return err
@@ -440,7 +440,7 @@ func CreateModel(ctx context.Context, name model.Name, modelFileDir, quantizatio
 						defer temp.Close()
 						defer os.Remove(temp.Name())
 
-						if err := llm.Quantize(blob, temp.Name(), want); err != nil {
+						if err := llm.Quantize(blob, temp.Name(), want, fn, tensorCount); err != nil {
 							return err
 						}
 
@@ -473,6 +473,7 @@ func CreateModel(ctx context.Context, name model.Name, modelFileDir, quantizatio
 
 				layers = append(layers, baseLayer.Layer)
 			}
+
 		case "license", "template", "system":
 			if c.Name != "license" {
 				// replace
@@ -1064,11 +1065,12 @@ func makeRequestWithRetry(ctx context.Context, method string, requestURL *url.UR
 	if anonymous {
 		// no user is associated with the public key, and the request requires non-anonymous access
 		pubKey, nestedErr := auth.GetPublicKey()
+		localPubKey := strings.TrimSpace(string(ssh.MarshalAuthorizedKey(pubKey)))
 		if nestedErr != nil {
 			slog.Error(fmt.Sprintf("couldn't get public key: %v", nestedErr))
 			return nil, errUnauthorized
 		}
-		return nil, &errtypes.UnknownOllamaKey{Key: pubKey}
+		return nil, &errtypes.UnknownOllamaKey{Key: localPubKey}
 	}
 	// user is associated with the public key, but is not authorized to make the request
 	return nil, errUnauthorized

server/routes.go

@@ -4,10 +4,12 @@ import (
 	"bytes"
 	"cmp"
 	"context"
+	"encoding/base64"
 	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
+	"log"
 	"log/slog"
 	"net"
 	"net/http"
@@ -22,8 +24,10 @@ import (
 
 	"github.com/gin-contrib/cors"
 	"github.com/gin-gonic/gin"
+	"golang.org/x/crypto/ssh"
 
 	"github.com/ollama/ollama/api"
+	"github.com/ollama/ollama/auth"
 	"github.com/ollama/ollama/envconfig"
 	"github.com/ollama/ollama/gpu"
 	"github.com/ollama/ollama/llm"
@@ -770,7 +774,6 @@ func (s *Server) CreateBlobHandler(c *gin.Context) {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
-
 	_, err = os.Stat(path)
 	switch {
 	case errors.Is(err, os.ErrNotExist):
@@ -783,6 +786,12 @@ func (s *Server) CreateBlobHandler(c *gin.Context) {
 		return
 	}
 
+	if c.GetHeader("X-Redirect-Create") == "1" && s.IsLocal(c) {
+		c.Header("LocalLocation", path)
+		c.Status(http.StatusTemporaryRedirect)
+		return
+	}
+
 	layer, err := NewLayer(c.Request.Body, "")
 	if err != nil {
 		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
@@ -797,6 +806,54 @@ func (s *Server) CreateBlobHandler(c *gin.Context) {
 	c.Status(http.StatusCreated)
 }
 
+func (s *Server) IsLocal(c *gin.Context) bool {
+	if authz := c.GetHeader("Authorization"); authz != "" {
+		parts := strings.Split(authz, ":")
+		if len(parts) != 3 {
+			return false
+		}
+
+		clientPublicKey, _, _, _, err := ssh.ParseAuthorizedKey([]byte(fmt.Sprintf("ssh-ed25519 %s", parts[0])))
+		if err != nil {
+			return false
+		}
+
+		// partialRequestData is formatted as http.Method,http.requestURI,timestamp,nonce
+		requestData, err := base64.StdEncoding.DecodeString(parts[1])
+		if err != nil {
+			return false
+		}
+
+		partialRequestDataParts := strings.Split(string(requestData), ",")
+		if len(partialRequestDataParts) != 3 {
+			return false
+		}
+
+		signature, err := base64.StdEncoding.DecodeString(parts[2])
+		if err != nil {
+			return false
+		}
+
+		if err := clientPublicKey.Verify(requestData, &ssh.Signature{Format: clientPublicKey.Type(), Blob: signature}); err != nil {
+			return false
+		}
+
+		serverPublicKey, err := auth.GetPublicKey()
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		if bytes.Equal(serverPublicKey.Marshal(), clientPublicKey.Marshal()) {
+			return true
+		}
+
+		c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "unauthorized"})
+		return false
+	}
+
+	return false
+}
+
 func isLocalIP(ip netip.Addr) bool {
 	if interfaces, err := net.Interfaces(); err == nil {
 		for _, iface := range interfaces {