mirror of
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feat(admin): add tessdata language management for OCR and download support (#5519)
# Description of Changes ### What was changed - Added new admin-only API endpoints to: - List installed tessdata OCR languages - Fetch available tessdata languages from the official Tesseract repository - Download selected tessdata language files directly into the configured tessdata directory - Implemented server-side validation, safe language name handling, and directory writability checks. - Extended the Admin Advanced Settings UI to: - Display installed tessdata languages - Show available remote languages not yet installed - Allow selecting and downloading additional languages via a multi-select UI - Gracefully fall back to manual download links when the tessdata directory is not writable - Added new i18n strings for all related UI states (loading, success, error, permission warnings). ### Why the change was made - Managing OCR languages previously required manual filesystem interaction. - This change improves usability for administrators by enabling in-app management of tessdata languages while maintaining security constraints. - The writable directory check and manual fallback ensure compatibility with restricted or containerized environments. <img width="1282" height="832" alt="image" src="https://github.com/user-attachments/assets/aa958730-0ffb-4fd6-9af8-87c527a476e4" /> --- ## Checklist ### General - [ ] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [ ] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md) (if applicable) - [ ] I have read the [How to add new languages to Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md) (if applicable) - [ ] I have performed a self-review of my own code - [ ] My changes generate no new warnings ### Documentation - [ ] I have updated relevant docs on [Stirling-PDF's doc repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/) (if functionality has heavily changed) - [ ] I have read the section [Add New Translation Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags) (for new translation tags only) ### Translations (if applicable) - [ ] I ran [`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md) ### UI Changes (if applicable) - [ ] Screenshots or videos demonstrating the UI changes are attached (e.g., as comments or direct attachments in the PR) ### Testing (if applicable) - [ ] I have tested my changes locally. Refer to the [Testing Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing) for more details. --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Ludy
GitHub
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package stirling.software.proprietary.security.controller.api;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.StandardCopyOption;
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import java.util.*;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.security.access.prepost.PreAuthorize;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import io.swagger.v3.oas.annotations.Operation;
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import lombok.Data;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import stirling.software.common.configuration.RuntimePathConfig;
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@Slf4j
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@RestController
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@RequestMapping("/api/v1/ui-data")
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@RequiredArgsConstructor
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public class UIDataTessdataController {
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private final RuntimePathConfig runtimePathConfig;
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private static volatile List<String> cachedRemoteTessdata = null;
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private static volatile long cachedRemoteTessdataExpiry = 0L;
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private static final long REMOTE_TESSDATA_TTL_MS = 10 * 60 * 1000; // 10 minutes
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@GetMapping("/tessdata-languages")
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@PreAuthorize("hasRole('ROLE_ADMIN')")
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@Operation(summary = "List installed and remotely available tessdata languages")
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public ResponseEntity<TessdataLanguagesResponse> getTessdataLanguages() {
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TessdataLanguagesResponse response = new TessdataLanguagesResponse();
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response.setInstalled(getAvailableTesseractLanguages());
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response.setAvailable(getRemoteTessdataLanguages());
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response.setWritable(isWritableDirectory(Paths.get(runtimePathConfig.getTessDataPath())));
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return ResponseEntity.ok(response);
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}
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@PostMapping("/tessdata/download")
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@PreAuthorize("hasRole('ROLE_ADMIN')")
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@Operation(summary = "Download selected tessdata languages from the official repository")
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public ResponseEntity<Map<String, Object>> downloadTessdataLanguages(
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@RequestBody TessdataDownloadRequest request) {
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if (request.getLanguages() == null || request.getLanguages().isEmpty()) {
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return ResponseEntity.badRequest()
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.body(Map.of("message", "No languages provided for download"));
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}
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Path tessdataDir = Paths.get(runtimePathConfig.getTessDataPath());
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try {
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Files.createDirectories(tessdataDir);
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} catch (IOException e) {
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log.error("Failed to create tessdata directory {}", tessdataDir, e);
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return ResponseEntity.internalServerError()
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.body(Map.of("message", "Failed to prepare tessdata directory"));
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}
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if (!isWritableDirectory(tessdataDir)) {
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return ResponseEntity.status(HttpStatus.FORBIDDEN)
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.body(Map.of("message", tessdataDir.toString()));
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}
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List<String> downloaded = new ArrayList<>();
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List<String> failed = new ArrayList<>();
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List<String> remoteLanguages = getRemoteTessdataLanguages();
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Set<String> remoteSet =
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remoteLanguages == null ? Collections.emptySet() : new HashSet<>(remoteLanguages);
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for (String language : request.getLanguages()) {
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if (language == null || language.isBlank()) {
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failed.add(language);
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continue;
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}
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String safeLang = language.replaceAll("[^A-Za-z0-9_+\\-]", "");
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if (!safeLang.equals(language)) {
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failed.add(language);
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continue;
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}
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if (!remoteSet.isEmpty() && !remoteSet.contains(safeLang)) {
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log.warn("Requested tessdata language {} not available in upstream list", safeLang);
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failed.add(language);
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continue;
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}
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String downloadUrl =
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"https://raw.githubusercontent.com/tesseract-ocr/tessdata/main/"
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+ safeLang
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+ ".traineddata";
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Path baseRealPath;
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try {
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baseRealPath = tessdataDir.toRealPath();
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} catch (IOException e) {
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log.warn("Failed to resolve tessdata directory {}", tessdataDir, e);
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failed.add(language);
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continue;
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}
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Path targetFile = baseRealPath.resolve(safeLang + ".traineddata").normalize();
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if (!targetFile.startsWith(baseRealPath)) {
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log.warn("Blocked tessdata download path traversal attempt for {}", language);
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failed.add(language);
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continue;
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}
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if (downloadLanguageFile(safeLang, targetFile, downloadUrl)) {
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downloaded.add(safeLang);
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} else {
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failed.add(language);
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}
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}
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Map<String, Object> response =
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Map.of(
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"downloaded", downloaded,
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"failed", failed,
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"tessdataDir", tessdataDir.toString());
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if (!downloaded.isEmpty() && failed.isEmpty()) {
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return ResponseEntity.ok(response);
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} else if (!downloaded.isEmpty()) {
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return ResponseEntity.status(207).body(response); // Multi-Status for partial success
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} else {
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return ResponseEntity.status(HttpStatus.BAD_GATEWAY).body(response);
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}
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}
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/** Download the language file, returning true on success. Extracted for testability. */
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protected boolean downloadLanguageFile(String safeLang, Path targetFile, String downloadUrl) {
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HttpURLConnection connection = null;
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try {
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URL url = new URL(downloadUrl);
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connection = (HttpURLConnection) url.openConnection();
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connection.setRequestMethod("GET");
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connection.setRequestProperty("User-Agent", "Stirling-PDF-App");
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connection.setRequestProperty("Accept", "application/octet-stream");
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connection.setConnectTimeout(5000);
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connection.setReadTimeout(30000);
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int status = connection.getResponseCode();
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if (status != HttpURLConnection.HTTP_OK) {
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log.warn(
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"Tessdata language {} not downloadable. HTTP {} from {}",
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safeLang,
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status,
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downloadUrl);
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return false;
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}
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try (InputStream is = connection.getInputStream()) {
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Files.copy(is, targetFile, StandardCopyOption.REPLACE_EXISTING);
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log.info("Downloaded tessdata language {} to {}", safeLang, targetFile);
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return true;
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}
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} catch (IOException e) {
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log.warn("Failed to download tessdata language {} from {}", safeLang, downloadUrl, e);
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return false;
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} finally {
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if (connection != null) {
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connection.disconnect();
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}
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}
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}
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/** Fetch list of available remote tessdata languages (with simple caching). */
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protected List<String> getRemoteTessdataLanguages() {
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long now = System.currentTimeMillis();
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List<String> localCache;
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long localExpiry;
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synchronized (UIDataTessdataController.class) {
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localCache = cachedRemoteTessdata;
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localExpiry = cachedRemoteTessdataExpiry;
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}
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if (localCache != null && now < localExpiry) {
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return localCache;
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}
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String apiUrl = "https://api.github.com/repos/tesseract-ocr/tessdata/contents";
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HttpURLConnection connection = null;
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try {
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URL url = new URL(apiUrl);
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connection = (HttpURLConnection) url.openConnection();
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connection.setRequestMethod("GET");
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connection.setRequestProperty("User-Agent", "Stirling-PDF-App");
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connection.setRequestProperty("Accept", "application/vnd.github+json");
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connection.setConnectTimeout(5000);
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connection.setReadTimeout(30000);
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int status = connection.getResponseCode();
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if (status != HttpURLConnection.HTTP_OK) {
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String remaining = connection.getHeaderField("X-RateLimit-Remaining");
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String reset = connection.getHeaderField("X-RateLimit-Reset");
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if (status == HttpURLConnection.HTTP_FORBIDDEN && remaining != null) {
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log.warn(
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"GitHub tessdata listing rate limited. Remaining={}, resetEpochSeconds={}",
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remaining,
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reset);
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} else {
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log.warn("GitHub tessdata listing returned HTTP {}", status);
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}
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return cachedRemoteTessdata != null
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? cachedRemoteTessdata
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: Collections.emptyList();
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}
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try (InputStream is = connection.getInputStream()) {
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ObjectMapper mapper = new ObjectMapper();
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List<Map<String, Object>> items =
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mapper.readValue(is, new TypeReference<List<Map<String, Object>>>() {});
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List<String> languages =
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items.stream()
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.map(item -> (String) item.get("name"))
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.filter(Objects::nonNull)
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.filter(name -> name.endsWith(".traineddata"))
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.map(name -> name.replace(".traineddata", ""))
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.filter(lang -> !"osd".equalsIgnoreCase(lang))
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.sorted()
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.toList();
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synchronized (UIDataTessdataController.class) {
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cachedRemoteTessdata = languages;
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cachedRemoteTessdataExpiry =
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System.currentTimeMillis() + REMOTE_TESSDATA_TTL_MS;
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}
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return languages;
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}
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} catch (IOException e) {
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log.warn("Failed to fetch tessdata languages from GitHub", e);
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return cachedRemoteTessdata != null ? cachedRemoteTessdata : Collections.emptyList();
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} finally {
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if (connection != null) {
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connection.disconnect();
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}
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}
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}
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@Data
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private static class TessdataDownloadRequest {
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private List<String> languages;
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}
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@Data
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private static class TessdataLanguagesResponse {
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private List<String> installed;
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private List<String> available;
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private boolean writable;
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}
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private List<String> getAvailableTesseractLanguages() {
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String tessdataDir = runtimePathConfig.getTessDataPath();
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java.io.File[] files = new java.io.File(tessdataDir).listFiles();
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if (files == null) {
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return Collections.emptyList();
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}
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return Arrays.stream(files)
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.filter(file -> file.getName().endsWith(".traineddata"))
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.map(file -> file.getName().replace(".traineddata", ""))
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.filter(lang -> !"osd".equalsIgnoreCase(lang))
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.sorted()
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.toList();
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}
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protected boolean isWritableDirectory(Path dir) {
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try {
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Files.createDirectories(dir);
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} catch (IOException e) {
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log.warn("Tessdata directory cannot be created: {}", dir, e);
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return false;
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}
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if (!Files.isWritable(dir)) {
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log.warn("Tessdata directory not writable (ACL check failed): {}", dir);
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return false;
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}
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try {
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Path probe = Files.createTempFile(dir, "tessdata-write-test", ".tmp");
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Files.deleteIfExists(probe);
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return true;
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} catch (IOException e) {
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log.warn("Tessdata directory not writable (temp file creation failed): {}", dir);
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return false;
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}
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}
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}
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@@ -0,0 +1,373 @@
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package stirling.software.proprietary.security.controller.api;
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import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
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import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.List;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.io.TempDir;
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import org.mockito.Mockito;
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import org.springframework.http.MediaType;
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import org.springframework.test.web.servlet.MockMvc;
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import org.springframework.test.web.servlet.setup.MockMvcBuilders;
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import stirling.software.common.configuration.RuntimePathConfig;
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class UIDataTessdataControllerTest {
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@Test
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void downloadTessdataLanguages_withEmptyList_returnsBadRequest() throws Exception {
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RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
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Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn("ignored/path");
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UIDataTessdataController controller =
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new UIDataTessdataController(runtimePathConfig) {
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@Override
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protected List<String> getRemoteTessdataLanguages() {
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return List.of("eng");
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}
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};
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MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
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mvc.perform(
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post("/api/v1/ui-data/tessdata/download")
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.contentType(MediaType.APPLICATION_JSON)
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.content("{\"languages\":[]}"))
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.andExpect(status().isBadRequest())
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.andExpect(jsonPath("$.message").value("No languages provided for download"));
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}
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@Test
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void downloadTessdataLanguages_blocksPathTraversal(@TempDir Path tempDir) throws Exception {
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RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
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Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
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UIDataTessdataController controller =
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new UIDataTessdataController(runtimePathConfig) {
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@Override
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protected List<String> getRemoteTessdataLanguages() {
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return List.of("eng");
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}
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};
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MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
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mvc.perform(
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post("/api/v1/ui-data/tessdata/download")
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.contentType(MediaType.APPLICATION_JSON)
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.content("{\"languages\":[\"../evil\"]}"))
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.andExpect(status().isBadGateway())
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.andExpect(jsonPath("$.downloaded").isArray())
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.andExpect(jsonPath("$.downloaded").isEmpty())
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.andExpect(jsonPath("$.failed[0]").value("../evil"));
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// Ensure no file was written outside the tessdata directory
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Path escapedPath = tempDir.resolve("../evil.traineddata").normalize();
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assert Files.notExists(escapedPath) : "Traversal path should not be written";
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}
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@Test
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void downloadTessdataLanguages_rejectsUnknownLanguage(@TempDir Path tempDir) throws Exception {
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RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
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Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
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UIDataTessdataController controller =
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new UIDataTessdataController(runtimePathConfig) {
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@Override
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protected List<String> getRemoteTessdataLanguages() {
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return List.of("eng");
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}
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};
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MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
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mvc.perform(
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post("/api/v1/ui-data/tessdata/download")
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.contentType(MediaType.APPLICATION_JSON)
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.content("{\"languages\":[\"fra\"]}"))
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.andExpect(status().isBadGateway())
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.andExpect(jsonPath("$.downloaded").isEmpty())
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.andExpect(jsonPath("$.failed[0]").value("fra"));
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}
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@Test
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void downloadTessdataLanguages_successAndFailureMixed(@TempDir Path tempDir) throws Exception {
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RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
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Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
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UIDataTessdataController controller =
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new UIDataTessdataController(runtimePathConfig) {
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@Override
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protected List<String> getRemoteTessdataLanguages() {
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return List.of("eng", "fra");
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}
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@Override
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protected boolean downloadLanguageFile(
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String safeLang, Path targetFile, String downloadUrl) {
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if ("eng".equals(safeLang)) {
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try {
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Files.writeString(targetFile, "dummy");
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return true;
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} catch (Exception e) {
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return false;
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}
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}
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return false;
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||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(
|
||||
post("/api/v1/ui-data/tessdata/download")
|
||||
.contentType(MediaType.APPLICATION_JSON)
|
||||
.content("{\"languages\":[\"eng\",\"fra\"]}"))
|
||||
.andExpect(status().isMultiStatus())
|
||||
.andExpect(jsonPath("$.downloaded[0]").value("eng"))
|
||||
.andExpect(jsonPath("$.failed[0]").value("fra"));
|
||||
}
|
||||
|
||||
@Test
|
||||
void downloadTessdataLanguages_handlesInvalidSanitizedLanguage(@TempDir Path tempDir)
|
||||
throws Exception {
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(
|
||||
post("/api/v1/ui-data/tessdata/download")
|
||||
.contentType(MediaType.APPLICATION_JSON)
|
||||
.content("{\"languages\":[\"eng/\"]}"))
|
||||
.andExpect(status().isBadGateway())
|
||||
.andExpect(jsonPath("$.downloaded").isEmpty())
|
||||
.andExpect(jsonPath("$.failed[0]").value("eng/"));
|
||||
}
|
||||
|
||||
@Test
|
||||
void downloadTessdataLanguages_returnsForbiddenWhenNotWritable(@TempDir Path tempDir)
|
||||
throws Exception {
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected boolean isWritableDirectory(Path dir) {
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(
|
||||
post("/api/v1/ui-data/tessdata/download")
|
||||
.contentType(MediaType.APPLICATION_JSON)
|
||||
.content("{\"languages\":[\"eng\"]}"))
|
||||
.andExpect(status().isForbidden());
|
||||
}
|
||||
|
||||
@Test
|
||||
void downloadTessdataLanguages_handlesNetworkFailure(@TempDir Path tempDir) throws Exception {
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
|
||||
@Override
|
||||
protected boolean downloadLanguageFile(
|
||||
String safeLang, Path targetFile, String downloadUrl) {
|
||||
return false; // simulate network failure
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(
|
||||
post("/api/v1/ui-data/tessdata/download")
|
||||
.contentType(MediaType.APPLICATION_JSON)
|
||||
.content("{\"languages\":[\"eng\"]}"))
|
||||
.andExpect(status().isBadGateway())
|
||||
.andExpect(jsonPath("$.downloaded").isArray())
|
||||
.andExpect(jsonPath("$.downloaded").isEmpty())
|
||||
.andExpect(jsonPath("$.failed[0]").value("eng"));
|
||||
}
|
||||
|
||||
@Test
|
||||
void downloadTessdataLanguages_allSuccess(@TempDir Path tempDir) throws Exception {
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
|
||||
@Override
|
||||
protected boolean downloadLanguageFile(
|
||||
String safeLang, Path targetFile, String downloadUrl) {
|
||||
try {
|
||||
Files.writeString(targetFile, "dummy");
|
||||
return true;
|
||||
} catch (IOException e) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(
|
||||
post("/api/v1/ui-data/tessdata/download")
|
||||
.contentType(MediaType.APPLICATION_JSON)
|
||||
.content("{\"languages\":[\"eng\"]}"))
|
||||
.andExpect(status().isOk())
|
||||
.andExpect(jsonPath("$.downloaded[0]").value("eng"))
|
||||
.andExpect(jsonPath("$.failed").isArray())
|
||||
.andExpect(jsonPath("$.failed").isEmpty());
|
||||
}
|
||||
|
||||
@Test
|
||||
void tessdataLanguages_returnsInstalledAvailableAndWritable(@TempDir Path tempDir)
|
||||
throws Exception {
|
||||
Files.createFile(tempDir.resolve("eng.traineddata"));
|
||||
Files.createFile(tempDir.resolve("deu.traineddata"));
|
||||
Files.createFile(tempDir.resolve("osd.traineddata")); // should be filtered
|
||||
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng", "fra");
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(get("/api/v1/ui-data/tessdata-languages"))
|
||||
.andExpect(status().isOk())
|
||||
.andExpect(jsonPath("$.installed[0]").value("deu"))
|
||||
.andExpect(jsonPath("$.installed[1]").value("eng"))
|
||||
.andExpect(jsonPath("$.available[0]").value("eng"))
|
||||
.andExpect(jsonPath("$.available[1]").value("fra"))
|
||||
.andExpect(jsonPath("$.writable").value(true));
|
||||
}
|
||||
|
||||
@Test
|
||||
void tessdataLanguages_emptyDirectory(@TempDir Path tempDir) throws Exception {
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(get("/api/v1/ui-data/tessdata-languages"))
|
||||
.andExpect(status().isOk())
|
||||
.andExpect(jsonPath("$.installed").isArray())
|
||||
.andExpect(jsonPath("$.installed").isEmpty())
|
||||
.andExpect(jsonPath("$.available[0]").value("eng"))
|
||||
.andExpect(jsonPath("$.writable").value(true));
|
||||
}
|
||||
|
||||
@Test
|
||||
void tessdataLanguages_nonTraineddataFilesAreIgnored(@TempDir Path tempDir) throws Exception {
|
||||
Files.createFile(tempDir.resolve("notes.txt"));
|
||||
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(get("/api/v1/ui-data/tessdata-languages"))
|
||||
.andExpect(status().isOk())
|
||||
.andExpect(jsonPath("$.installed").isArray())
|
||||
.andExpect(jsonPath("$.installed").isEmpty())
|
||||
.andExpect(jsonPath("$.writable").value(true));
|
||||
}
|
||||
|
||||
@Test
|
||||
void tessdataLanguages_handlesNonExistentDirectory(@TempDir Path tempDir) throws Exception {
|
||||
Path missingDir = tempDir.resolve("missing");
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(missingDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(get("/api/v1/ui-data/tessdata-languages"))
|
||||
.andExpect(status().isOk())
|
||||
.andExpect(jsonPath("$.installed").isArray())
|
||||
.andExpect(jsonPath("$.installed").isEmpty())
|
||||
.andExpect(jsonPath("$.writable").value(true));
|
||||
}
|
||||
|
||||
@Test
|
||||
void tessdataLanguages_marksNotWritable(@TempDir Path tempDir) throws Exception {
|
||||
RuntimePathConfig runtimePathConfig = Mockito.mock(RuntimePathConfig.class);
|
||||
Mockito.when(runtimePathConfig.getTessDataPath()).thenReturn(tempDir.toString());
|
||||
|
||||
UIDataTessdataController controller =
|
||||
new UIDataTessdataController(runtimePathConfig) {
|
||||
@Override
|
||||
protected boolean isWritableDirectory(Path dir) {
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
protected List<String> getRemoteTessdataLanguages() {
|
||||
return List.of("eng");
|
||||
}
|
||||
};
|
||||
|
||||
MockMvc mvc = MockMvcBuilders.standaloneSetup(controller).build();
|
||||
|
||||
mvc.perform(get("/api/v1/ui-data/tessdata-languages"))
|
||||
.andExpect(status().isOk())
|
||||
.andExpect(jsonPath("$.writable").value(false));
|
||||
}
|
||||
}
|
||||
@@ -4836,6 +4836,26 @@ description = "Maximum DPI for image processing (0 = unlimited)"
|
||||
[admin.settings.advanced.tessdataDir]
|
||||
label = "Tessdata Directory"
|
||||
description = "Path to the tessdata directory for OCR language files"
|
||||
downloadMissingTitle = "No language selected"
|
||||
downloadMissingBody = "Please select at least one language to download."
|
||||
downloadSuccessTitle = "Languages downloaded"
|
||||
downloadSuccessBody = "The selected tessdata languages have been saved."
|
||||
downloadErrorTitle = "Download Failed"
|
||||
loadingLanguages = "Loading installed tessdata languages..."
|
||||
installedLanguages = "Installed tessdata languages"
|
||||
noLanguages = "No tessdata languages found in the configured directory."
|
||||
downloadLabel = "Download additional tessdata languages"
|
||||
downloadPlaceholder = "Select languages"
|
||||
downloadNothingFound = "No additional languages found"
|
||||
permissionNotice = "The tessdata path is not writable. Downloads will be opened in the browser; please save the .traineddata files manually into the tessdata folder."
|
||||
manualLinks = "Manual downloads: click the links and place the files into the tessdata folder."
|
||||
downloadButton = "Download selected languages"
|
||||
downloadInvalidTitle = "Invalid selection"
|
||||
downloadInvalidBody = "Some selected languages are not available to download. Please refresh and choose from the list."
|
||||
downloadErrorNetwork = "Download failed due to a network error. Please check your connection and try again."
|
||||
downloadErrorServer = "The server encountered an error while downloading tessdata languages. Please try again later."
|
||||
downloadErrorPermission = "Tessdata directory is not writable: {{message}}. Please choose a writable directory (e.g. under the application data folder) or adjust permissions."
|
||||
downloadErrorGeneric = "Download failed: {{message}}. Please try again later."
|
||||
|
||||
[admin.settings.advanced.disableSanitize]
|
||||
label = "Disable HTML Sanitization"
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
import { useEffect } from 'react';
|
||||
import { useEffect, useMemo, useState } from 'react';
|
||||
import { useTranslation } from 'react-i18next';
|
||||
import { NumberInput, Switch, Button, Stack, Paper, Text, Loader, Group, Accordion, TextInput } from '@mantine/core';
|
||||
import { NumberInput, Switch, Button, Stack, Paper, Text, Loader, Group, Accordion, TextInput, MultiSelect } from '@mantine/core';
|
||||
import { alert } from '@app/components/toast';
|
||||
import RestartConfirmationModal from '@app/components/shared/config/RestartConfirmationModal';
|
||||
import { useRestartServer } from '@app/components/shared/config/useRestartServer';
|
||||
@@ -9,6 +9,7 @@ import PendingBadge from '@app/components/shared/config/PendingBadge';
|
||||
import apiClient from '@app/services/apiClient';
|
||||
import { useLoginRequired } from '@app/hooks/useLoginRequired';
|
||||
import LoginRequiredBanner from '@app/components/shared/config/LoginRequiredBanner';
|
||||
import { Z_INDEX_OVER_CONFIG_MODAL } from '@app/styles/zIndex';
|
||||
|
||||
interface AdvancedSettingsData {
|
||||
enableAlphaFunctionality?: boolean;
|
||||
@@ -173,6 +174,166 @@ export default function AdminAdvancedSection() {
|
||||
}
|
||||
}, [loginEnabled]);
|
||||
|
||||
const [tessdataLanguages, setTessdataLanguages] = useState<string[]>([]);
|
||||
const [remoteTessdataLanguages, setRemoteTessdataLanguages] = useState<string[]>([]);
|
||||
const [tessdataDirWritable, setTessdataDirWritable] = useState<boolean>(true);
|
||||
const [manualDownloadLinks, setManualDownloadLinks] = useState<string[]>([]);
|
||||
const [tessdataLanguagesLoading, setTessdataLanguagesLoading] = useState(false);
|
||||
const [downloadLanguagesLoading, setDownloadLanguagesLoading] = useState(false);
|
||||
const [selectedDownloadLanguages, setSelectedDownloadLanguages] = useState<string[]>([]);
|
||||
|
||||
useEffect(() => {
|
||||
if (!loginEnabled) return;
|
||||
|
||||
const fetchTessdataLanguages = async () => {
|
||||
setTessdataLanguagesLoading(true);
|
||||
try {
|
||||
const { data } = await apiClient.get<{ installed: string[]; available: string[]; writable?: boolean }>('/api/v1/ui-data/tessdata-languages', {
|
||||
suppressErrorToast: true
|
||||
});
|
||||
const installed = data.installed || [];
|
||||
const available = data.available || [];
|
||||
setTessdataLanguages(installed);
|
||||
setRemoteTessdataLanguages(available.filter((lang) => !installed.includes(lang)));
|
||||
setTessdataDirWritable(data.writable !== false);
|
||||
setManualDownloadLinks([]);
|
||||
} catch (error) {
|
||||
console.error('[AdminAdvancedSection] Failed to load tessdata languages', error);
|
||||
setTessdataLanguages([]);
|
||||
setRemoteTessdataLanguages([]);
|
||||
setTessdataDirWritable(true);
|
||||
setManualDownloadLinks([]);
|
||||
} finally {
|
||||
setTessdataLanguagesLoading(false);
|
||||
}
|
||||
};
|
||||
|
||||
fetchTessdataLanguages();
|
||||
}, [loginEnabled]);
|
||||
|
||||
const refreshTessdataWithRetry = async (retries = 3, delayMs = 400) => {
|
||||
for (let attempt = 0; attempt < retries; attempt++) {
|
||||
try {
|
||||
const { data } = await apiClient.get<{ installed: string[]; available: string[]; writable?: boolean }>(
|
||||
'/api/v1/ui-data/tessdata-languages',
|
||||
{ suppressErrorToast: true }
|
||||
);
|
||||
const installed = data.installed || [];
|
||||
const available = data.available || [];
|
||||
setTessdataLanguages(installed);
|
||||
setRemoteTessdataLanguages(available.filter((lang) => !installed.includes(lang)));
|
||||
setTessdataDirWritable(data.writable !== false);
|
||||
setManualDownloadLinks([]);
|
||||
return;
|
||||
} catch (err) {
|
||||
if (attempt === retries - 1) {
|
||||
console.error('[AdminAdvancedSection] Retry refresh tessdata failed', err);
|
||||
return;
|
||||
}
|
||||
await new Promise((resolve) => setTimeout(resolve, delayMs));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
const safeLangRegex = useMemo(() => new RegExp('[^A-Za-z0-9_+\\-]', 'g'), []);
|
||||
|
||||
const handleDownloadTessdataLanguages = async () => {
|
||||
if (!loginEnabled) return;
|
||||
if (selectedDownloadLanguages.length === 0) {
|
||||
alert({
|
||||
alertType: 'warning',
|
||||
title: t('admin.settings.advanced.tessdataDir.downloadMissingTitle', 'No language selected'),
|
||||
body: t('admin.settings.advanced.tessdataDir.downloadMissingBody', 'Please select at least one language to download.'),
|
||||
expandable: false,
|
||||
});
|
||||
return;
|
||||
}
|
||||
// Ensure selection is a subset of remote languages to prevent invalid requests
|
||||
const remoteSet = new Set(remoteTessdataLanguages);
|
||||
const invalidSelection = selectedDownloadLanguages.filter((lang) => !remoteSet.has(lang));
|
||||
if (invalidSelection.length > 0) {
|
||||
alert({
|
||||
alertType: 'warning',
|
||||
title: t('admin.settings.advanced.tessdataDir.downloadInvalidTitle', 'Invalid selection'),
|
||||
body: t(
|
||||
'admin.settings.advanced.tessdataDir.downloadInvalidBody',
|
||||
'Some selected languages are not available to download. Please refresh and choose from the list.'
|
||||
),
|
||||
expandable: false,
|
||||
});
|
||||
return;
|
||||
}
|
||||
setDownloadLanguagesLoading(true);
|
||||
try {
|
||||
await apiClient.post('/api/v1/ui-data/tessdata/download', { languages: selectedDownloadLanguages }, {
|
||||
suppressErrorToast: true
|
||||
});
|
||||
alert({
|
||||
alertType: 'success',
|
||||
title: t('admin.settings.advanced.tessdataDir.downloadSuccessTitle', 'Languages downloaded'),
|
||||
body: t('admin.settings.advanced.tessdataDir.downloadSuccessBody', 'The selected tessdata languages have been saved.'),
|
||||
});
|
||||
// Refresh installed list with retry in case filesystem sync is delayed
|
||||
await refreshTessdataWithRetry();
|
||||
setSelectedDownloadLanguages([]);
|
||||
setManualDownloadLinks([]);
|
||||
} catch (error) {
|
||||
console.error('[AdminAdvancedSection] Download tessdata languages failed', error);
|
||||
const response = (error as any)?.response;
|
||||
const status = response?.status;
|
||||
const serverMessage = response?.data?.message;
|
||||
|
||||
if (status === 403) {
|
||||
console.warn('[AdminAdvancedSection] Tessdata directory not writable, falling back to manual download:', serverMessage);
|
||||
setTessdataDirWritable(false);
|
||||
setManualDownloadLinks(
|
||||
selectedDownloadLanguages.map((lang) => {
|
||||
const safeLang = lang.replace(safeLangRegex, '');
|
||||
return `https://raw.githubusercontent.com/tesseract-ocr/tessdata/main/${safeLang}.traineddata`;
|
||||
})
|
||||
);
|
||||
const message = t('admin.settings.advanced.tessdataDir.downloadErrorPermission', {
|
||||
defaultValue:
|
||||
'Tessdata directory is not writable: {{message}}. Please choose a writable directory (e.g. under the application data folder) or adjust permissions.',
|
||||
message: serverMessage ?? settings.tessdataDir ?? 'unknown location',
|
||||
});
|
||||
alert({
|
||||
alertType: 'error',
|
||||
title: t('admin.settings.advanced.tessdataDir.downloadErrorTitle', 'Download Failed'),
|
||||
body: message,
|
||||
expandable: false,
|
||||
});
|
||||
return;
|
||||
}
|
||||
|
||||
let message: string;
|
||||
if (!response) {
|
||||
message = t(
|
||||
'admin.settings.advanced.tessdataDir.downloadErrorNetwork',
|
||||
'Download failed due to a network error. Please check your connection and try again.'
|
||||
);
|
||||
} else if (status >= 500) {
|
||||
message = t(
|
||||
'admin.settings.advanced.tessdataDir.downloadErrorServer',
|
||||
'The server encountered an error while downloading tessdata languages. Please try again later.'
|
||||
);
|
||||
} else {
|
||||
message = t('admin.settings.advanced.tessdataDir.downloadErrorGeneric', {
|
||||
defaultValue: 'Download failed: {{message}}. Please try again later.',
|
||||
message: serverMessage ?? settings.tessdataDir ?? 'unknown location',
|
||||
});
|
||||
}
|
||||
alert({
|
||||
alertType: 'error',
|
||||
title: t('admin.settings.advanced.tessdataDir.downloadErrorTitle', 'Download Failed'),
|
||||
body: message,
|
||||
expandable: false,
|
||||
});
|
||||
} finally {
|
||||
setDownloadLanguagesLoading(false);
|
||||
}
|
||||
};
|
||||
|
||||
const handleSave = async () => {
|
||||
if (!validateLoginEnabled()) {
|
||||
return;
|
||||
@@ -301,6 +462,7 @@ export default function AdminAdvancedSection() {
|
||||
/>
|
||||
</div>
|
||||
|
||||
{/* Tessdata Directory */}
|
||||
<div>
|
||||
<TextInput
|
||||
label={
|
||||
@@ -315,6 +477,69 @@ export default function AdminAdvancedSection() {
|
||||
placeholder="/usr/share/tessdata"
|
||||
disabled={!loginEnabled}
|
||||
/>
|
||||
{tessdataLanguagesLoading ? (
|
||||
<Group gap="xs" mt={6}>
|
||||
<Loader size="xs" />
|
||||
<Text size="xs">
|
||||
{t('admin.settings.advanced.tessdataDir.loadingLanguages', 'Loading installed tessdata languages...')}
|
||||
</Text>
|
||||
</Group>
|
||||
) : (
|
||||
<Text size="xs" c="dimmed" mt={6}>
|
||||
{tessdataLanguages.length > 0
|
||||
? `${t('admin.settings.advanced.tessdataDir.installedLanguages', 'Installed tessdata languages')}: ${tessdataLanguages.join(', ')}`
|
||||
: t('admin.settings.advanced.tessdataDir.noLanguages', 'No tessdata languages found in the configured directory')}
|
||||
</Text>
|
||||
)}
|
||||
<Stack gap="xs" mt="sm">
|
||||
<MultiSelect
|
||||
label={t('admin.settings.advanced.tessdataDir.downloadLabel', 'Download additional tessdata languages')}
|
||||
placeholder={t('admin.settings.advanced.tessdataDir.downloadPlaceholder', 'Select languages')}
|
||||
data={remoteTessdataLanguages.map((lang) => ({ value: lang, label: lang }))}
|
||||
searchable
|
||||
disabled={!loginEnabled || remoteTessdataLanguages.length === 0}
|
||||
value={selectedDownloadLanguages}
|
||||
onChange={setSelectedDownloadLanguages}
|
||||
comboboxProps={{ withinPortal: true, zIndex: Z_INDEX_OVER_CONFIG_MODAL }}
|
||||
nothingFoundMessage={t('admin.settings.advanced.tessdataDir.downloadNothingFound', 'No additional languages found')}
|
||||
/>
|
||||
{!tessdataDirWritable && (
|
||||
<Text size="xs" c="yellow.4">
|
||||
{t(
|
||||
'admin.settings.advanced.tessdataDir.permissionNotice',
|
||||
'The tessdata path is not writable. Downloads will be opened in the browser; please save the .traineddata files manually into the tessdata folder.'
|
||||
)}
|
||||
</Text>
|
||||
)}
|
||||
{!tessdataDirWritable && manualDownloadLinks.length > 0 && (
|
||||
<Stack gap="xs">
|
||||
<Text size="xs" c="dimmed">
|
||||
{t(
|
||||
'admin.settings.advanced.tessdataDir.manualLinks',
|
||||
'Manual downloads: click the links and place the files into the tessdata folder.'
|
||||
)}
|
||||
</Text>
|
||||
<Stack gap={4}>
|
||||
{manualDownloadLinks.map((link) => (
|
||||
<a key={link} href={link} target="_blank" rel="noreferrer" style={{ fontSize: '12px' }}>
|
||||
{link}
|
||||
</a>
|
||||
))}
|
||||
</Stack>
|
||||
</Stack>
|
||||
)}
|
||||
<Group justify="flex-end">
|
||||
<Button
|
||||
size="xs"
|
||||
variant="light"
|
||||
onClick={handleDownloadTessdataLanguages}
|
||||
loading={downloadLanguagesLoading}
|
||||
disabled={!loginEnabled || remoteTessdataLanguages.length === 0}
|
||||
>
|
||||
{t('admin.settings.advanced.tessdataDir.downloadButton', 'Download selected languages')}
|
||||
</Button>
|
||||
</Group>
|
||||
</Stack>
|
||||
</div>
|
||||
</Stack>
|
||||
</Paper>
|
||||
|
||||
Reference in New Issue
Block a user