impersonation implementado

src/main/java/com/imprimelibros/erp/config/SecurityConfig.java

@@ -149,6 +149,10 @@ public class SecurityConfig {
                                                                 "/pagos/redsys/**"
                                                 )
                                                 .permitAll()
+                                                .requestMatchers("/impersonate/exit")
+                                                .hasRole("PREVIOUS_ADMINISTRATOR")
+                                                .requestMatchers("/impersonate")
+                                                .hasAnyRole("SUPERADMIN", "ADMIN")
                                                 .requestMatchers("/users/**").hasAnyRole("SUPERADMIN", "ADMIN")
                                                 .anyRequest().authenticated())
 

src/main/java/com/imprimelibros/erp/users/ImpersonationController.java

@@ -0,0 +1,115 @@
+package com.imprimelibros.erp.users;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.security.access.AccessDeniedException;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+
+import com.imprimelibros.erp.config.Sanitizer;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpSession;
+
+@Controller
+public class ImpersonationController {
+
+    private static final String PREVIOUS_ADMIN_ROLE = "ROLE_PREVIOUS_ADMINISTRATOR";
+    private static final String SESSION_ATTR = "IMPERSONATOR_AUTH";
+
+    private final UserService userService;
+    private final Sanitizer sanitizer;
+
+    public ImpersonationController(UserService userService, Sanitizer sanitizer) {
+        this.userService = userService;
+        this.sanitizer = sanitizer;
+    }
+
+    @PostMapping("/impersonate")
+    @PreAuthorize("hasRole('ADMIN') or hasRole('SUPERADMIN')")
+    public String impersonate(
+            @RequestParam("username") String username,
+            Authentication authentication,
+            HttpServletRequest request) {
+
+        if (authentication == null) {
+            return "redirect:/login";
+        }
+
+        if (hasRole(authentication, PREVIOUS_ADMIN_ROLE)) {
+            return "redirect:/";
+        }
+
+        String normalized = sanitizer.plain(username);
+        if (normalized == null || normalized.isBlank()) {
+            return "redirect:/users";
+        }
+        normalized = normalized.trim().toLowerCase();
+
+        if (authentication.getName() != null
+                && authentication.getName().equalsIgnoreCase(normalized)) {
+            return "redirect:/users";
+        }
+
+        UserDetails target;
+        try {
+            target = userService.loadUserByUsername(normalized);
+        } catch (UsernameNotFoundException ex) {
+            throw new AccessDeniedException("No autorizado");
+        }
+
+        boolean currentIsSuperAdmin = hasRole(authentication, "ROLE_SUPERADMIN");
+        boolean targetIsSuperAdmin = target.getAuthorities().stream()
+                .anyMatch(a -> "ROLE_SUPERADMIN".equals(a.getAuthority()));
+        if (targetIsSuperAdmin && !currentIsSuperAdmin) {
+            throw new AccessDeniedException("No autorizado");
+        }
+
+        HttpSession session = request.getSession(true);
+        if (session.getAttribute(SESSION_ATTR) == null) {
+            session.setAttribute(SESSION_ATTR, authentication);
+        }
+
+        List<GrantedAuthority> authorities = new ArrayList<>(target.getAuthorities());
+        authorities.add(new SimpleGrantedAuthority(PREVIOUS_ADMIN_ROLE));
+
+        UsernamePasswordAuthenticationToken newAuth = new UsernamePasswordAuthenticationToken(
+                target, target.getPassword(), authorities);
+        newAuth.setDetails(authentication.getDetails());
+
+        SecurityContextHolder.getContext().setAuthentication(newAuth);
+        return "redirect:/";
+    }
+
+    @PostMapping("/impersonate/exit")
+    @PreAuthorize("hasRole('PREVIOUS_ADMINISTRATOR')")
+    public String exit(HttpServletRequest request) {
+        HttpSession session = request.getSession(false);
+        if (session != null) {
+            Object previous = session.getAttribute(SESSION_ATTR);
+            if (previous instanceof Authentication previousAuth) {
+                SecurityContextHolder.getContext().setAuthentication(previousAuth);
+            } else {
+                SecurityContextHolder.clearContext();
+            }
+            session.removeAttribute(SESSION_ATTR);
+        }
+        return "redirect:/";
+    }
+
+    private static boolean hasRole(Authentication auth, String role) {
+        return auth != null
+                && auth.getAuthorities().stream()
+                        .anyMatch(a -> role.equals(a.getAuthority()));
+    }
+}

src/main/java/com/imprimelibros/erp/users/UserController.java

@@ -81,6 +81,9 @@ public class UserController {
                 "usuarios.delete.button",
                 "app.yes",
                 "app.cancelar",
+                "usuarios.impersonate.title",
+                "usuarios.impersonate.text",
+                "usuarios.impersonate.button",
                 "usuarios.delete.ok.title",
                 "usuarios.delete.ok.text");
 
@@ -132,26 +135,36 @@ public class UserController {
                         .collect(Collectors.joining(" ")))
                 .add("actions", (user) -> {
 
-                    boolean isSuperAdmin = authentication.getAuthorities().stream()
+                    boolean isSuperAdmin = authentication != null && authentication.getAuthorities().stream()
                             .anyMatch(a -> a.getAuthority().equals("ROLE_SUPERADMIN"));
 
-                    if (!isSuperAdmin) {
-                        return "<div class=\"hstack gap-3 flex-wrap\">\n" +
-                                "                    <a href=\"javascript:void(0);\" data-id=\"" + user.getId()
-                                + "\" class=\"link-success btn-edit-user fs-15\"><i class=\"ri-edit-2-line\"></i></a>\n"
-                                +
-                                "                </div>";
-                    } else {
-                        // Admin editando otro admin o usuario normal: puede editarse y eliminarse
-                        return "<div class=\"hstack gap-3 flex-wrap\">\n" +
-                                "                    <a href=\"javascript:void(0);\" data-id=\"" + user.getId()
-                                + "\" class=\"link-success btn-edit-user fs-15\"><i class=\"ri-edit-2-line\"></i></a>\n"
-                                +
-                                "                    <a href=\"javascript:void(0);\" data-id=\"" + user.getId()
-                                + "\" class=\"link-danger btn-delete-user fs-15\"><i class=\"user-delete ri-delete-bin-line\"></i></a>\n"
-                                +
-                                "                </div>";
+                    boolean isSelf = authentication != null
+                            && authentication.getName() != null
+                            && authentication.getName().equalsIgnoreCase(user.getUserName());
+
+                    boolean targetIsSuperAdmin = user.getRoles().stream()
+                            .anyMatch(r -> "SUPERADMIN".equalsIgnoreCase(r.getName()));
+
+                    StringBuilder actions = new StringBuilder();
+                    actions.append("<div class=\"hstack gap-3 flex-wrap\">");
+                    actions.append("<a href=\"javascript:void(0);\" data-id=\"")
+                            .append(user.getId())
+                            .append("\" class=\"link-success btn-edit-user fs-15\"><i class=\"ri-edit-2-line\"></i></a>");
+
+                    if (!isSelf && (isSuperAdmin || !targetIsSuperAdmin)) {
+                        actions.append("<a href=\"javascript:void(0);\" data-username=\"")
+                                .append(user.getUserName())
+                                .append("\" class=\"link-info btn-impersonate-user fs-15\"><i class=\"ri-user-shared-line\"></i></a>");
                     }
+
+                    if (isSuperAdmin) {
+                        actions.append("<a href=\"javascript:void(0);\" data-id=\"")
+                                .append(user.getId())
+                                .append("\" class=\"link-danger btn-delete-user fs-15\"><i class=\"user-delete ri-delete-bin-line\"></i></a>");
+                    }
+
+                    actions.append("</div>");
+                    return actions.toString();
                 })
                 .where(base)
                 // Filtros custom:

src/main/resources/application.properties

@@ -1,7 +1,7 @@
 spring.application.name=erp
 # Active profile
-#spring.profiles.active=dev
-spring.profiles.active=test
+spring.profiles.active=dev
+#spring.profiles.active=test
 #spring.profiles.active=prod
 
 

src/main/resources/i18n/app_en.properties

@@ -6,4 +6,5 @@ app.cancelar=Cancel
 app.guardar=Save
 app.editar=Edit
 app.eliminar=Delete
-app.imprimir=Print
+app.imprimir=Print
+app.impersonate.exit=Return to my user

src/main/resources/i18n/app_es.properties

@@ -32,4 +32,5 @@ app.sidebar.gestion-pagos=Gestión de Pagos
 
 app.errors.403=No tienes permiso para acceder a esta página.
 
-app.validation.required=Campo obligatorio
+app.validation.required=Campo obligatorio
+app.impersonate.exit=Volver a mi usuario

src/main/resources/i18n/users_en.properties

@@ -1 +1,3 @@
-
+usuarios.impersonate.title=Sign in as user
+usuarios.impersonate.text=You are about to sign in as <b>{0}</b>. You can return to your user from the menu.
+usuarios.impersonate.button=Continue

src/main/resources/i18n/users_es.properties

@@ -53,4 +53,7 @@ usuarios.delete.title=Eliminar usuario
 usuarios.delete.button=Si, ELIMINAR
 usuarios.delete.text=¿Está seguro de que desea eliminar al usuario?<br>Esta acción no se puede deshacer.
 usuarios.delete.ok.title=Usuario eliminado
-usuarios.delete.ok.text=El usuario ha sido eliminado con éxito.
+usuarios.delete.ok.text=El usuario ha sido eliminado con éxito.
+usuarios.impersonate.title=Entrar como usuario
+usuarios.impersonate.text=Vas a iniciar sesión como <b>{0}</b>. Podrás volver a tu usuario desde el menú.
+usuarios.impersonate.button=Entrar

src/main/resources/static/assets/js/pages/imprimelibros/users/list.js

@@ -147,6 +147,55 @@ $(() => {
     });
   });
 
+  // Botón "Entrar como"
+  $(document).on('click', '.btn-impersonate-user', function (e) {
+    e.preventDefault();
+    const username = $(this).data('username');
+
+    const title = window.languageBundle.get(['usuarios.impersonate.title']) || 'Entrar como usuario';
+    const textTpl = window.languageBundle.get(['usuarios.impersonate.text'])
+      || 'Vas a iniciar sesión como <b>{0}</b>.';
+    const confirmText = window.languageBundle.get(['usuarios.impersonate.button']) || 'Entrar';
+
+    Swal.fire({
+      title,
+      html: textTpl.replace('{0}', username),
+      icon: 'warning',
+      showCancelButton: true,
+      buttonsStyling: false,
+      customClass: {
+        confirmButton: 'btn btn-info w-xs mt-2',
+        cancelButton: 'btn btn-light w-xs mt-2'
+      },
+      confirmButtonText: confirmText,
+      cancelButtonText: window.languageBundle.get(['app.cancelar']) || 'Cancelar',
+    }).then((result) => {
+      if (!result.isConfirmed) return;
+
+      $.ajax({
+        url: '/impersonate',
+        type: 'POST',
+        data: { username },
+        success: function () {
+          window.location.href = '/';
+        },
+        error: function (xhr) {
+          const msg = (xhr.responseJSON && xhr.responseJSON.message)
+            || 'No se pudo iniciar sesión como ese usuario.';
+          Swal.fire({
+            icon: 'error',
+            title: 'No se pudo suplantar',
+            text: msg,
+            buttonsStyling: false,
+            customClass: {
+              confirmButton: 'btn btn-secondary me-2',
+            },
+          });
+        }
+      });
+    });
+  });
+
 
   // Submit del form en el modal
   $(document).on('submit', '#userForm', function (e) {

src/main/resources/templates/imprimelibros/partials/topbar.html

@@ -103,6 +103,14 @@
 								<a class="dropdown-item" href="/apps-chat"><i
 										class="mdi mdi-message-text-outline text-muted fs-16 align-middle me-1"></i>
 									<span class="align-middle" th:text="#{app.mensajes}">Mensajes</span></a>
+								<div sec:authorize="hasRole('PREVIOUS_ADMINISTRATOR')">
+									<div class="dropdown-divider"></div>
+									<a class="dropdown-item" href="#"
+										onclick="document.getElementById('exitImpersonationForm').submit(); return false;">
+										<i class="mdi mdi-account-switch text-muted fs-16 align-middle me-1"></i>
+										<span class="align-middle" th:text="#{app.impersonate.exit}">Volver a mi usuario</span>
+									</a>
+								</div>
 								<div class="dropdown-divider"></div>
 								<a class="dropdown-item" href="#"
 									onclick="document.getElementById('logoutForm').submit(); return false;">
@@ -127,7 +135,10 @@
 		<form id="logoutForm" th:action="@{/logout}" method="post" class="d-none">
 			<input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
 		</form>
+		<form id="exitImpersonationForm" th:action="@{/impersonate/exit}" method="post" class="d-none">
+			<input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
+		</form>
 	</header>
 
 
-</div>
+</div>