From 82d5136c1b03efbb99931884dd75ab1160689ceb Mon Sep 17 00:00:00 2001
From: Saumit Dinesan <justsaumit@protonmail.com>
Date: Tue, 28 Nov 2023 15:17:18 +0530
Subject: Refactoring project - Introducing handlers,models and utils- Updating
 previous hasher and idgen func + formatting

---
 handlers/handlers.go | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 handlers/handlers.go

(limited to 'handlers/handlers.go')

diff --git a/handlers/handlers.go b/handlers/handlers.go
new file mode 100644
index 0000000..f350589
--- /dev/null
+++ b/handlers/handlers.go
@@ -0,0 +1,75 @@
+package handlers
+
+import (
+	"database/sql"
+	"github.com/justsaumit/go-fis-api/models"
+	"github.com/justsaumit/go-fis-api/utils"
+	"github.com/labstack/echo/v4"
+	_ "github.com/mattn/go-sqlite3"
+	"log"
+	"net/http"
+)
+
+var db *sql.DB
+
+func init() {
+	var err error
+	db, err = sql.Open("sqlite3", "hashstore.db")
+	if err != nil {
+		log.Fatalf("sqlite3 not installed: %v", err)
+	}
+
+	if err = db.Ping(); err != nil {
+		log.Fatalf("Failed to connect to database: %v", err)
+	}
+
+	// Create the 'hashes' table if it does not exist
+	_, err = db.Exec(`
+        CREATE TABLE IF NOT EXISTS hashes (
+        ID TEXT PRIMARY KEY,
+        HashValue TEXT NOT NULL
+        );
+    `)
+}
+
+// AddHash handles the file upload, store and response
+func AddHash(c echo.Context) error {
+	file, err := c.FormFile("file")
+	if err != nil {
+		log.Println("Failed to bind request:", err)
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": "Invalid request"})
+	}
+
+	src, err := file.Open()
+	if err != nil {
+		log.Println("Failed to Open File", err)
+		return err
+	}
+	defer src.Close()
+
+	id, err := utils.GenerateID()
+	if err != nil {
+		log.Println("Failed to Generate ID", err)
+	}
+
+	hash, err := utils.GenerateHash(src)
+	if err != nil {
+		log.Println("Failed to Generate Hash", err)
+	}
+
+	// Store id and hash in the database
+	_, err := db.Exec("INSERT INTO hashes (ID, HashValue) VALUES (?, ?)", id, hash)
+	if err != nil {
+		log.Println("Failed to insert into database:", err)
+		//return c.JSON(http.StatusInternalServerError, map[string]string{"message": "Failed to store hash"})
+	}
+	//return c.JSON(http.StatusOK, map[string]string{"id": id, "message": "Hash added successfully"})
+
+	data := models.FileHashPair{
+		ID:       id,
+		FileHash: hash,
+	}
+
+	log.Println("Hash added successfully")
+	return c.JSON(http.StatusOK, data)
+}
-- 
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