Add: complete MPaste service rewritten in Spring

mpaste/src/main/java/net/miarma/backend/mpaste/MPasteApplication.java

@@ -0,0 +1,15 @@
+package net.miarma.backend.mpaste;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication(scanBasePackages = {
+        "net.miarma.backend.mpaste",
+        "net.miarma.backlib"
+})
+public class MPasteApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(MPasteApplication.class, args);
+    }
+}
+

mpaste/src/main/java/net/miarma/backend/mpaste/config/NoSecurityConfig.java

@@ -0,0 +1,17 @@
+package net.miarma.backend.mpaste.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.web.SecurityFilterChain;
+
+@Configuration
+public class NoSecurityConfig {
+    @Bean
+    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
+        http
+            .csrf(csrf -> csrf.disable())
+            .authorizeHttpRequests(auth -> auth.anyRequest().permitAll());
+        return http.build();
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/config/SchedulingConfig.java

@@ -0,0 +1,9 @@
+package net.miarma.backend.mpaste.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@EnableScheduling
+@Configuration
+public class SchedulingConfig {
+}

mpaste/src/main/java/net/miarma/backend/mpaste/controller/PasteController.java

@@ -0,0 +1,69 @@
+package net.miarma.backend.mpaste.controller;
+
+import net.miarma.backend.mpaste.dto.PasteDto;
+import net.miarma.backend.mpaste.dto.PastePassword;
+import net.miarma.backend.mpaste.mapper.PasteMapper;
+import net.miarma.backend.mpaste.service.PasteService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.UUID;
+
+@RestController
+@RequestMapping("/pastes")
+public class PasteController {
+    private PasteService pasteService;
+
+    public PasteController(PasteService pasteService) {
+        this.pasteService = pasteService;
+    }
+
+    @GetMapping
+    public ResponseEntity<List<PasteDto.Response>> getAll() {
+        return ResponseEntity.ok(
+            pasteService.getAll().stream()
+                .map(PasteMapper::toResponse)
+                .toList()
+        );
+    }
+
+    @GetMapping("/by-id/{paste_id}")
+    public ResponseEntity<PasteDto.Response> getById(@PathVariable("paste_id") UUID pasteId) {
+        return ResponseEntity.ok(
+            PasteMapper.toResponse(pasteService.getById(pasteId))
+        );
+    }
+
+    @GetMapping("/{paste_key}")
+    public ResponseEntity<PasteDto.Response> getByKey(@PathVariable("paste_key") String pasteKey, @RequestBody PastePassword dto) {
+        return ResponseEntity.ok(
+            PasteMapper.toResponse(pasteService.getByKey(pasteKey, dto.password()))
+        );
+    }
+
+    @PostMapping
+    public ResponseEntity<PasteDto.Response> create(PasteDto.Request request) {
+        return ResponseEntity.ok(
+            PasteMapper.toResponse(
+                pasteService.create(
+                    PasteMapper.toEntity(request)
+                )
+            )
+        );
+    }
+
+    @PutMapping("/{paste_id}")
+    public void update() {
+        throw new UnsupportedOperationException("Pastes cannot be updated");
+    }
+
+    @DeleteMapping("/{paste_id}")
+    public ResponseEntity<PasteDto.Response> delete(@PathVariable("paste_id") UUID pasteId) {
+        return ResponseEntity.ok(
+            PasteMapper.toResponse(
+                pasteService.delete(pasteId)
+            )
+        );
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/dto/PasteDto.java

@@ -0,0 +1,157 @@
+package net.miarma.backend.mpaste.dto;
+
+import java.time.Instant;
+import java.util.UUID;
+
+public class PasteDto {
+
+    private PasteDto() { }
+
+    public static class Request {
+
+        private String title;
+        private String content;
+        private String syntax;
+
+        private Boolean burnAfter;
+        private Boolean isPrivate;
+        private String password;
+
+        public String getTitle() {
+            return title;
+        }
+
+        public void setTitle(String title) {
+            this.title = title;
+        }
+
+        public String getContent() {
+            return content;
+        }
+
+        public void setContent(String content) {
+            this.content = content;
+        }
+
+        public String getSyntax() {
+            return syntax;
+        }
+
+        public void setSyntax(String syntax) {
+            this.syntax = syntax;
+        }
+
+        public Boolean getBurnAfter() {
+            return burnAfter;
+        }
+
+        public void setBurnAfter(Boolean burnAfter) {
+            this.burnAfter = burnAfter;
+        }
+
+        public Boolean getIsPrivate() {
+            return isPrivate;
+        }
+
+        public void setIsPrivate(Boolean isPrivate) {
+            this.isPrivate = isPrivate;
+        }
+
+        public String getPassword() {
+            return password;
+        }
+
+        public void setPassword(String password) {
+            this.password = password;
+        }
+    }
+
+    public static class Response {
+
+        private UUID pasteId;
+        private String pasteKey;
+
+        private String title;
+        private String content;
+        private String syntax;
+
+        private Integer views;
+
+        private Boolean burnAfter;
+        private Boolean isPrivate;
+
+        private Instant createdAt;
+
+        public UUID getPasteId() {
+            return pasteId;
+        }
+
+        public void setPasteId(UUID pasteId) {
+            this.pasteId = pasteId;
+        }
+
+        public String getPasteKey() {
+            return pasteKey;
+        }
+
+        public void setPasteKey(String pasteKey) {
+            this.pasteKey = pasteKey;
+        }
+
+        public String getTitle() {
+            return title;
+        }
+
+        public void setTitle(String title) {
+            this.title = title;
+        }
+
+        public String getContent() {
+            return content;
+        }
+
+        public void setContent(String content) {
+            this.content = content;
+        }
+
+        public String getSyntax() {
+            return syntax;
+        }
+
+        public void setSyntax(String syntax) {
+            this.syntax = syntax;
+        }
+
+        public Integer getViews() {
+            return views;
+        }
+
+        public void setViews(Integer views) {
+            this.views = views;
+        }
+
+        public Boolean getBurnAfter() {
+            return burnAfter;
+        }
+
+        public void setBurnAfter(Boolean burnAfter) {
+            this.burnAfter = burnAfter;
+        }
+
+        public Boolean getIsPrivate() {
+            return isPrivate;
+        }
+
+        public void setIsPrivate(Boolean isPrivate) {
+            this.isPrivate = isPrivate;
+        }
+
+        public Instant getCreatedAt() {
+            return createdAt;
+        }
+
+        public void setCreatedAt(Instant createdAt) {
+            this.createdAt = createdAt;
+        }
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/dto/PastePassword.java

@@ -0,0 +1,3 @@
+package net.miarma.backend.mpaste.dto;
+
+public record PastePassword(String password) {}

mpaste/src/main/java/net/miarma/backend/mpaste/mapper/PasteMapper.java

@@ -0,0 +1,51 @@
+package net.miarma.backend.mpaste.mapper;
+
+import net.miarma.backend.mpaste.dto.PasteDto;
+import net.miarma.backend.mpaste.model.Paste;
+
+import java.time.Instant;
+
+public final class PasteMapper {
+
+    private PasteMapper() { }
+
+    public static Paste toEntity(PasteDto.Request request) {
+
+        Paste paste = new Paste();
+
+        paste.setTitle(request.getTitle());
+        paste.setContent(request.getContent());
+        paste.setSyntax(request.getSyntax());
+
+        paste.setBurnAfter(Boolean.TRUE.equals(request.getBurnAfter()));
+        paste.setPrivate(Boolean.TRUE.equals(request.getIsPrivate()));
+
+        paste.setPassword(request.getPassword());
+
+        paste.setViews(0);
+        paste.setCreatedAt(Instant.now());
+
+        return paste;
+    }
+
+    public static PasteDto.Response toResponse(Paste paste) {
+
+        PasteDto.Response response = new PasteDto.Response();
+
+        response.setPasteId(paste.getPasteId());
+        response.setPasteKey(paste.getPasteKey());
+
+        response.setTitle(paste.getTitle());
+        response.setContent(paste.getContent());
+        response.setSyntax(paste.getSyntax());
+
+        response.setViews(paste.getViews());
+
+        response.setBurnAfter(paste.isBurnAfter());
+        response.setIsPrivate(paste.isPrivate());
+
+        response.setCreatedAt(paste.getCreatedAt());
+
+        return response;
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/model/Paste.java

@@ -0,0 +1,158 @@
+package net.miarma.backend.mpaste.model;
+
+import jakarta.persistence.*;
+import net.miarma.backlib.util.UuidUtil;
+
+import java.time.Instant;
+import java.util.UUID;
+
+@Entity
+@Table(name = "mpaste_pastes")
+public class Paste {
+    @Id
+    @Column(name = "paste_id", columnDefinition = "BINARY(16)")
+    private byte[] pasteIdBin;
+
+    @Transient
+    private UUID pasteId;
+
+    @Column(name = "owner_id", columnDefinition = "BINARY(16)")
+    private byte[] ownerIdBin;
+
+    @Transient
+    private UUID ownerId;
+
+    @Column(name = "paste_key", updatable = false, insertable = false, unique = true, nullable = false)
+    private String pasteKey;
+
+    @Column(nullable = false)
+    private String title;
+
+    @Column(nullable = false)
+    private String content;
+
+    private String syntax;
+    private Integer views;
+
+    @Column(name = "burn_after")
+    private Boolean burnAfter;
+
+    @Column(name = "is_private")
+    private Boolean isPrivate;
+
+    private String password;
+
+    @Column(name = "created_at")
+    private Instant createdAt;
+
+    @PrePersist
+    @PreUpdate
+    private void prePersist() {
+        if (pasteId != null) {
+            pasteIdBin = UuidUtil.uuidToBin(pasteId);
+        }
+
+        if (ownerId != null) {
+            ownerIdBin = UuidUtil.uuidToBin(ownerId);
+        }
+    }
+
+    @PostLoad
+    private void postLoad() {
+        if (pasteIdBin != null) {
+            pasteId = UuidUtil.binToUUID(pasteIdBin);
+        }
+
+        if (ownerIdBin != null) {
+            ownerId = UuidUtil.binToUUID(ownerIdBin);
+        }
+    }
+
+    public UUID getPasteId() {
+        return pasteId;
+    }
+
+    public void setPasteId(UUID pasteId) {
+        this.pasteId = pasteId;
+    }
+
+    public UUID getOwnerId() {
+        return ownerId;
+    }
+
+    public void setOwnerId(UUID ownerId) {
+        this.ownerId = ownerId;
+    }
+
+    public String getPasteKey() {
+        return pasteKey;
+    }
+
+    public void setPasteKey(String pasteKey) {
+        this.pasteKey = pasteKey;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getSyntax() {
+        return syntax;
+    }
+
+    public void setSyntax(String syntax) {
+        this.syntax = syntax;
+    }
+
+    public Integer getViews() {
+        return views;
+    }
+
+    public void setViews(Integer views) {
+        this.views = views;
+    }
+
+    public Boolean isBurnAfter() {
+        return burnAfter;
+    }
+
+    public void setBurnAfter(Boolean burnAfter) {
+        this.burnAfter = burnAfter;
+    }
+
+    public Boolean isPrivate() {
+        return isPrivate;
+    }
+
+    public void setPrivate(Boolean aPrivate) {
+        isPrivate = aPrivate;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Instant createdAt) {
+        this.createdAt = createdAt;
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/repository/PasteRepository.java

@@ -0,0 +1,10 @@
+package net.miarma.backend.mpaste.repository;
+
+import net.miarma.backend.mpaste.model.Paste;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface PasteRepository extends JpaRepository<Paste, byte[]> {
+    Optional<Paste> findByPasteKey(String pasteKey);
+}

mpaste/src/main/java/net/miarma/backend/mpaste/service/PasteService.java

@@ -0,0 +1,81 @@
+package net.miarma.backend.mpaste.service;
+
+import jakarta.transaction.Transactional;
+import net.miarma.backend.mpaste.model.Paste;
+import net.miarma.backend.mpaste.repository.PasteRepository;
+import net.miarma.backend.mpaste.validation.PasteValidator;
+import net.miarma.backlib.exception.ForbiddenException;
+import net.miarma.backlib.exception.NotFoundException;
+import net.miarma.backlib.util.UuidUtil;
+import org.springframework.scheduling.TaskScheduler;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import java.time.Instant;
+import java.util.List;
+import java.util.UUID;
+
+@Service
+@Transactional
+public class PasteService {
+    private final PasteRepository pasteRepository;
+    private final PasswordEncoder passwordEncoder;
+    private final TaskScheduler taskScheduler;
+
+    public PasteService(PasteRepository pasteRepository, PasswordEncoder passwordEncoder, TaskScheduler taskScheduler) {
+        this.pasteRepository = pasteRepository;
+        this.passwordEncoder = passwordEncoder;
+        this.taskScheduler = taskScheduler;
+    }
+
+    public List<Paste> getAll() {
+        return pasteRepository.findAll().stream()
+                .filter(p -> !Boolean.TRUE.equals(p.isPrivate()))
+                .toList();
+    }
+
+    public Paste getById(UUID pasteId) {
+        byte[] idBytes = UuidUtil.uuidToBin(pasteId);
+        return pasteRepository.findById(idBytes)
+                .orElseThrow(() -> new NotFoundException("Paste not found"));
+    }
+
+    public Paste getByKey(String pasteKey, String password) {
+        Paste paste = pasteRepository.findByPasteKey(pasteKey)
+                .orElseThrow(() -> new NotFoundException("Paste not found"));
+
+        if(Boolean.TRUE.equals(paste.isPrivate())) {
+            if(password == null || passwordEncoder.matches(password, paste.getPassword())) {
+                throw new ForbiddenException("Incorrect password");
+            }
+        }
+
+        if(Boolean.TRUE.equals(paste.isBurnAfter())) {
+            taskScheduler.schedule(
+                    () -> pasteRepository.delete(paste),
+                    Instant.now().plusSeconds(5)
+            );
+        }
+
+        return paste;
+    }
+
+    public Paste create(Paste paste) {
+        PasteValidator.validate(paste);
+        return pasteRepository.save(paste);
+    }
+
+    public Paste update(UUID pasteId, Paste changes) {
+        throw new UnsupportedOperationException("Pastes cannot be updated");
+    }
+
+    public Paste delete(UUID pasteId) {
+        byte[] idBytes = UuidUtil.uuidToBin(pasteId);
+        if(!pasteRepository.existsById(idBytes)) {
+            throw new NotFoundException("Paste not found");
+        }
+        Paste paste = getById(pasteId);
+        pasteRepository.deleteById(idBytes);
+        return paste;
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/util/PasteKeyGenerator.java

@@ -0,0 +1,17 @@
+package net.miarma.backend.mpaste.util;
+
+import java.security.SecureRandom;
+
+public class PasteKeyGenerator {
+    private static final String ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    private static final SecureRandom RANDOM = new SecureRandom();
+
+    public static String generate(int length) {
+        StringBuilder sb = new StringBuilder(length);
+        for (int i = 0; i < length; i++) {
+            int index = RANDOM.nextInt(ALPHABET.length());
+            sb.append(ALPHABET.charAt(index));
+        }
+        return sb.toString();
+    }
+}

mpaste/src/main/java/net/miarma/backend/mpaste/validation/PasteValidator.java

@@ -0,0 +1,26 @@
+package net.miarma.backend.mpaste.validation;
+
+import net.miarma.backend.mpaste.model.Paste;
+import net.miarma.backlib.exception.ValidationException;
+
+public class PasteValidator {
+    public static void validate(Paste paste) {
+        if (paste.getTitle() == null || paste.getTitle().trim().isEmpty()) {
+            throw new ValidationException("title", "The title cannot be empty");
+        }
+
+        if (paste.getContent() == null || paste.getContent().trim().isEmpty()) {
+            throw new ValidationException("content", "The content cannot be empty");
+        }
+
+        if (Boolean.TRUE.equals(paste.isPrivate())) {
+            if (paste.getPassword() == null || paste.getPassword().trim().isEmpty()) {
+                throw new ValidationException("password", "Private pastes require password");
+            }
+        }
+
+        if (paste.getTitle() != null && paste.getTitle().length() > 128) {
+            throw new ValidationException("title", "Title too long (128 characters max.)");
+        }
+    }
+}

mpaste/src/main/resources/application-dev.yml

@@ -0,0 +1,16 @@
+server:
+  port: 8081
+  servlet:
+    context-path: /v2/mpaste
+
+spring:
+  datasource:
+    url: jdbc:mariadb://localhost:3306/miarma_v2
+    username: admin
+    password: ${DB_PASS}
+    driver-class-name: org.mariadb.jdbc.Driver
+
+logging:
+  level:
+    org.hibernate.SQL: DEBUG
+    org.hibernate.orm.jdbc.bind: TRACE

mpaste/src/main/resources/application-prod.yml

@@ -0,0 +1,15 @@
+server:
+  port: 8081
+  servlet:
+    context-path: /v2/mpaste
+
+spring:
+  datasource:
+    url: jdbc:mariadb://mariadb:3306/miarma_v2
+    username: ${DB_USER}
+    password: ${DB_PASS}
+    driver-class-name: org.mariadb.jdbc.Driver
+
+logging:
+  level:
+    org.hibernate.SQL: WARN

mpaste/src/main/resources/application.yml

@@ -0,0 +1,25 @@
+spring:
+  application:
+    name: mpaste-service
+
+  jpa:
+    open-in-view: false
+    hibernate:
+      ddl-auto: validate
+    properties:
+      hibernate:
+        jdbc:
+          time_zone: UTC
+
+  jackson:
+    default-property-inclusion: non_null
+    time-zone: Europe/Madrid
+
+jwt:
+  expiration-ms: 3600000
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info