pedro/Saludapp
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Añadir crear usuario a mariadb

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pedro
2026-07-13 13:35:40 +02:00
parent f680750119
commit fcb8869e0a
7 changed files with 222 additions and 27 deletions
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app/build.gradle.kts
+5
View File
@@ -31,6 +31,11 @@ android {
buildFeatures {
compose = true
}
packaging {
resources {
excludes += "/META-INF/{AL2.0,LGPL2.1}"
}
}
}
dependencies {
app/src/main/java/com/example/saludapp/MainActivity.kt
+9 -4
View File
@@ -14,6 +14,7 @@ import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import com.example.saludapp.ui.LoginScreen
import com.example.saludapp.ui.RegisterScreen
import com.example.saludapp.ui.StartScreen
import com.example.saludapp.ui.theme.SaludappTheme
@@ -29,10 +30,14 @@ class MainActivity : ComponentActivity() {
"start" -> StartScreen {
currentScreen = "login"
}
"login" -> LoginScreen {
// Aquí iría la lógica tras login exitoso
currentScreen = "home"
}
"login" -> LoginScreen(
onLoginSuccess = { currentScreen = "home" },
onNavigateToRegister = { currentScreen = "register" }
)
"register" -> RegisterScreen(
onRegisterSuccess = { currentScreen = "login" },
onBackToLogin = { currentScreen = "login" }
)
"home" -> {
Box(
modifier = Modifier.fillMaxSize(),
app/src/main/java/com/example/saludapp/data/DatabaseHelper.kt
+40 -3
View File
@@ -2,6 +2,7 @@ package com.example.saludapp.data
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
import java.security.MessageDigest
import java.sql.Connection
import java.sql.DriverManager
import java.sql.SQLException
@@ -9,20 +10,27 @@ import java.sql.SQLException
object DatabaseHelper {
private const val URL = "jdbc:mariadb://mariadb.peta9.com:3306/saludapp_db"
private const val USER = "saludapp_dba"
private const val PASSWORD = "TU_CONTRASEÑA_AQUÍ" // TODO: Reemplazar con la contraseña real
private const val PASSWORD = "Pedro@110387"
private fun hashPassword(password: String): String {
val bytes = password.toByteArray()
val md = MessageDigest.getInstance("SHA-256")
val digest = md.digest(bytes)
return digest.fold("") { str, it -> str + "%02x".format(it) }
}
suspend fun validateLogin(user: String, pass: String): Boolean = withContext(Dispatchers.IO) {
var connection: Connection? = null
try {
// Cargar el driver explícitamente si es necesario
Class.forName("org.mariadb.jdbc.Driver")
connection = DriverManager.getConnection(URL, USER, PASSWORD)
val hashedPass = hashPassword(pass)
val query = "SELECT COUNT(*) FROM usuarios WHERE (username = ? OR email = ?) AND password = ?"
connection.prepareStatement(query).use { statement ->
statement.setString(1, user)
statement.setString(2, user)
statement.setString(3, pass)
statement.setString(3, hashedPass)
val resultSet = statement.executeQuery()
if (resultSet.next()) {
@@ -40,4 +48,33 @@ object DatabaseHelper {
}
return@withContext false
}
suspend fun registerUser(user: String, email: String, pass: String, fullName: String): Boolean = withContext(Dispatchers.IO) {
var connection: Connection? = null
try {
Class.forName("org.mariadb.jdbc.Driver")
connection = DriverManager.getConnection(URL, USER, PASSWORD)
val hashedPass = hashPassword(pass)
val query = "INSERT INTO usuarios (username, email, password, nombre_completo) VALUES (?, ?, ?, ?)"
connection.prepareStatement(query).use { statement ->
statement.setString(1, user)
statement.setString(2, email)
statement.setString(3, hashedPass)
statement.setString(4, fullName)
val result = statement.executeUpdate()
return@withContext result > 0
}
} catch (e: Exception) {
e.printStackTrace()
} finally {
try {
connection?.close()
} catch (e: SQLException) {
e.printStackTrace()
}
}
return@withContext false
}
}
app/src/main/java/com/example/saludapp/ui/LoginScreen.kt
+5 -1
View File
@@ -11,7 +11,7 @@ import com.example.saludapp.data.DatabaseHelper
import kotlinx.coroutines.launch
@Composable
fun LoginScreen(onLoginSuccess: () -> Unit) {
fun LoginScreen(onLoginSuccess: () -> Unit, onNavigateToRegister: () -> Unit) {
var email by remember { mutableStateOf("") }
var password by remember { mutableStateOf("") }
var isLoading by remember { mutableStateOf(false) }
@@ -97,6 +97,10 @@ fun LoginScreen(onLoginSuccess: () -> Unit) {
Text("Entrar")
}
}
TextButton(onClick = onNavigateToRegister) {
Text("¿No tienes cuenta? Regístrate aquí")
}
}
}
}
app/src/main/java/com/example/saludapp/ui/RegisterScreen.kt
+130
View File
@@ -0,0 +1,130 @@
package com.example.saludapp.ui
import androidx.compose.foundation.layout.*
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.input.PasswordVisualTransformation
import androidx.compose.ui.unit.dp
import com.example.saludapp.data.DatabaseHelper
import kotlinx.coroutines.launch
@Composable
fun RegisterScreen(onRegisterSuccess: () -> Unit, onBackToLogin: () -> Unit) {
var fullName by remember { mutableStateOf("") }
var username by remember { mutableStateOf("") }
var email by remember { mutableStateOf("") }
var password by remember { mutableStateOf("") }
var isLoading by remember { mutableStateOf(false) }
var errorMessage by remember { mutableStateOf<String?>(null) }
val scope = rememberCoroutineScope()
Surface(
modifier = Modifier.fillMaxSize(),
color = MaterialTheme.colorScheme.background
) {
Column(
modifier = Modifier
.fillMaxSize()
.padding(24.dp),
horizontalAlignment = Alignment.CenterHorizontally,
verticalArrangement = Arrangement.Center
) {
Text(
text = "Crear Cuenta",
style = MaterialTheme.typography.headlineMedium,
color = MaterialTheme.colorScheme.primary
)
Spacer(modifier = Modifier.height(24.dp))
OutlinedTextField(
value = fullName,
onValueChange = { fullName = it },
label = { Text("Nombre Completo") },
modifier = Modifier.fillMaxWidth(),
singleLine = true,
enabled = !isLoading
)
Spacer(modifier = Modifier.height(12.dp))
OutlinedTextField(
value = username,
onValueChange = { username = it },
label = { Text("Nombre de usuario") },
modifier = Modifier.fillMaxWidth(),
singleLine = true,
enabled = !isLoading
)
Spacer(modifier = Modifier.height(12.dp))
OutlinedTextField(
value = email,
onValueChange = { email = it },
label = { Text("Email") },
modifier = Modifier.fillMaxWidth(),
singleLine = true,
enabled = !isLoading
)
Spacer(modifier = Modifier.height(12.dp))
OutlinedTextField(
value = password,
onValueChange = { password = it },
label = { Text("Contraseña") },
visualTransformation = PasswordVisualTransformation(),
modifier = Modifier.fillMaxWidth(),
singleLine = true,
enabled = !isLoading
)
if (errorMessage != null) {
Text(
text = errorMessage!!,
color = MaterialTheme.colorScheme.error,
modifier = Modifier.padding(top = 16.dp)
)
}
Spacer(modifier = Modifier.height(32.dp))
Button(
onClick = {
scope.launch {
isLoading = true
errorMessage = null
val success = DatabaseHelper.registerUser(username, email, password, fullName)
isLoading = false
if (success) {
onRegisterSuccess()
} else {
errorMessage = "Error al registrar. El usuario puede que ya exista."
}
}
},
modifier = Modifier
.fillMaxWidth()
.height(56.dp),
enabled = !isLoading && fullName.isNotEmpty() && username.isNotEmpty() && email.isNotEmpty() && password.isNotEmpty()
) {
if (isLoading) {
CircularProgressIndicator(
modifier = Modifier.size(24.dp),
color = MaterialTheme.colorScheme.onPrimary,
strokeWidth = 2.dp
)
} else {
Text("Registrarse")
}
}
TextButton(onClick = onBackToLogin) {
Text("¿Ya tienes cuenta? Inicia sesión")
}
}
}
}