1 files changed, 0 insertions, 379 deletions
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustParser.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustParser.java
deleted file mode 100644
index 89f53629..00000000
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustParser.java
+++ /dev/null
@@ -1,379 +0,0 @@
-package at.asit.pdfover.gui.bku.mobile;
-
-import java.lang.reflect.InvocationTargetException;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-
-import javax.annotation.CheckForNull;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
-
-import org.jsoup.Jsoup;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import static at.asit.pdfover.commons.Constants.ISNOTNULL;
-
-public class ATrustParser {
-    private static final Logger log = LoggerFactory.getLogger(ATrustParser.class);
-
-    private static class ComponentParseFailed extends Exception {}
-
-    private static class TopLevelFormBlock {
-        protected final @Nonnull org.jsoup.nodes.Document htmlDocument;
-        protected final @Nonnull Map<String, String> formOptions;
-        protected TopLevelFormBlock(@Nonnull org.jsoup.nodes.Document d, @Nonnull Map<String,String> fO) { this.htmlDocument = d; this.formOptions = fO; }
-
-        protected void abortIfElementMissing(@Nonnull String selector) throws ComponentParseFailed {
-            if (this.htmlDocument.selectFirst(selector) != null) return;
-            log.debug("Tested for element {} -- not found.", selector);
-            throw new ComponentParseFailed();
-        }
-        protected @Nonnull org.jsoup.nodes.Element getElementEnsureNotNull(@Nonnull String selector) throws ComponentParseFailed {
-            var elm = this.htmlDocument.selectFirst(selector);
-            if (elm == null) { log.warn("Expected element not found in response: {}", selector); throw new ComponentParseFailed(); }
-            return elm;
-        }
-        protected @Nonnull String getAttributeEnsureNotNull(@Nonnull String selector, @Nonnull String attribute) throws ComponentParseFailed {
-            var elm = getElementEnsureNotNull(selector);
-            if (!elm.hasAttr(attribute)) { log.warn("Element {} is missing expected attribute '{}'.", selector, attribute); throw new ComponentParseFailed(); }
-            return ISNOTNULL(elm.attr(attribute));
-        }
-        protected @Nonnull URI getURIAttributeEnsureNotNull(@Nonnull String selector, @Nonnull String attribute) throws ComponentParseFailed {
-            String value = getAttributeEnsureNotNull(selector, attribute);
-            try {
-                return new URI(value);
-            } catch (URISyntaxException e) {
-                if (attribute.startsWith("abs:"))
-                    attribute = ISNOTNULL(attribute.substring(4));
-                log.warn("Element {} attribute {} is '{}', could not be parsed as URI", selector, attribute, getAttributeEnsureNotNull(selector, attribute));
-                throw new ComponentParseFailed();
-            }
-        }
-        protected @Nonnull URI getLongPollURI() throws ComponentParseFailed {
-            var pollingScriptElm = getElementEnsureNotNull("#jsLongPoll script");
-            String pollingScript = pollingScriptElm.data();
-            int startIdx = pollingScript.indexOf("qrpoll(\"");
-            if (startIdx < 0) { log.warn("Failed to find 'qrpoll(\"' in jsLongPoll script:\n{}", pollingScript); throw new ComponentParseFailed(); }
-            startIdx += 8;
-
-            int endIdx = pollingScript.indexOf("\");", startIdx);
-            if (endIdx < 0) { log.warn("Failed to find qrpoll terminator '\");' in jsLongPoll script:\n{}", pollingScript); throw new ComponentParseFailed(); }
-
-            String pollingUriString = pollingScript.substring(startIdx, endIdx);
-            try {
-                return ISNOTNULL(new URI(pollingScriptElm.baseUri()).resolve(pollingUriString));
-            } catch (URISyntaxException e) {
-                log.warn("Long-poll URI '{}' could not be parsed", pollingUriString);
-                throw new ComponentParseFailed();
-            }
-        }
-    }
-
-    public static class AutoSkipBlock extends TopLevelFormBlock {
-        public final @Nonnull String submitButton;
-
-        private AutoSkipBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            if (htmlDocument.baseUri().contains("/tanAppInfo.aspx")) {
-                this.submitButton = "#NextBtn";
-            } else { throw new ComponentParseFailed(); }
-        }
-    }
-
-    public static class InterstitialBlock extends TopLevelFormBlock {
-        public final @Nonnull String submitButton;
-        public final @Nonnull String interstitialMessage;
-
-        private InterstitialBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            if (htmlDocument.baseUri().contains("/ExpiresInfo.aspx")) {
-                this.interstitialMessage = ISNOTNULL(getElementEnsureNotNull("#Label2").ownText());
-                this.submitButton = "#Button_Next";
-            } else { throw new ComponentParseFailed(); }
-        }
-    }
-
-    public static class ErrorBlock extends TopLevelFormBlock {
-        public final boolean isRecoverable;
-        public final @Nonnull String errorText;
-
-        private ErrorBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-
-            try {
-                String documentPath = new URI(htmlDocument.baseUri()).getPath();
-                String aspxFile = documentPath.substring(documentPath.lastIndexOf('/'));
-
-                // gods this is such a hack, why can't they have a proper error element or something
-                if (!(aspxFile.startsWith("/error") && aspxFile.endsWith(".aspx")))
-                    throw new ComponentParseFailed();
-            } catch (URISyntaxException ex) {
-                log.warn("Failed to parse document base URI as URI? ({})", htmlDocument.baseUri());
-                throw new ComponentParseFailed();
-            }
-
-            this.isRecoverable = (htmlDocument.selectFirst("#Button_Back") != null);
-
-            StringBuilder errorText = new StringBuilder(getElementEnsureNotNull("#Label1").ownText().trim());
-            var detailLabel = this.htmlDocument.selectFirst("#LabelDetail");
-            if (detailLabel != null)
-                errorText.append("\n").append(detailLabel.ownText().trim());
-            this.errorText = ISNOTNULL(errorText.toString());
-        }
-    }
-
-    public static class UsernamePasswordBlock extends TopLevelFormBlock {
-        private final @Nonnull String usernameKey;
-        private final @Nonnull String passwordKey;
-        public final @CheckForNull String errorMessage;
-
-        public void setUsernamePassword(String username, String password) {
-            formOptions.put(usernameKey, username); formOptions.put(passwordKey, password);
-        }
-
-        private UsernamePasswordBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            abortIfElementMissing("#handynummer");
-            this.usernameKey = getAttributeEnsureNotNull("#handynummer", "name");
-            this.passwordKey = getAttributeEnsureNotNull("#signaturpasswort", "name");
-            this.errorMessage = null;
-        }
-    }
-
-    public static class SMSTanBlock extends TopLevelFormBlock {
-        private final @Nonnull String tanKey;
-        public final @Nonnull String referenceValue;
-        public final @CheckForNull String errorMessage;
-
-        public void setTAN(String tan) {
-            formOptions.put(tanKey, tan);
-        }
-
-        private SMSTanBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            abortIfElementMissing("#input_tan");
-            this.tanKey = getAttributeEnsureNotNull("#input_tan", "name");
-            this.referenceValue = ISNOTNULL(getElementEnsureNotNull("#vergleichswert").ownText());
-            this.errorMessage = null;
-        }
-    }
-
-    public static class QRCodeBlock extends TopLevelFormBlock {
-        public final @Nonnull String referenceValue;
-        public final @Nonnull URI qrCodeURI;
-        public final @Nonnull URI pollingURI;
-        public final @Nullable String errorMessage;
-
-        private QRCodeBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            abortIfElementMissing("#qrimage");
-            
-            this.referenceValue = ISNOTNULL(getElementEnsureNotNull("#vergleichswert").ownText());
-            this.qrCodeURI = getURIAttributeEnsureNotNull("#qrimage", "abs:src");
-            this.pollingURI = getLongPollURI();
-
-            this.errorMessage = null;
-        }
-    }
-
-    public static class WaitingForAppBlock extends TopLevelFormBlock {
-        public final @Nonnull String referenceValue;
-        public final @Nonnull URI pollingURI;
-
-        private WaitingForAppBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            abortIfElementMissing("#smartphoneAnimation");
-
-            this.referenceValue = ISNOTNULL(getElementEnsureNotNull("#vergleichswert").ownText());
-            this.pollingURI = getLongPollURI();            
-        }
-    }
-
-    public static class WaitingForBiometryBlock extends TopLevelFormBlock {
-        public final @Nonnull String referenceValue;
-        public final @Nonnull URI pollingURI;
-
-        private WaitingForBiometryBlock(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            abortIfElementMissing("#biometricimage");
-
-            this.referenceValue = ISNOTNULL(getElementEnsureNotNull("#vergleichswert").ownText());
-            this.pollingURI = getLongPollURI();
-        }
-    }
-
-    public static class Fido2Block extends TopLevelFormBlock {
-        public final @Nonnull String fidoOptions;
-        private final @Nonnull String credentialResultKey;
-
-        public void setFIDOResult(String result) { formOptions.put(credentialResultKey, result); }
-
-        private Fido2Block(@Nonnull org.jsoup.nodes.Document htmlDocument, @Nonnull Map<String, String> formOptions) throws ComponentParseFailed {
-            super(htmlDocument, formOptions);
-            abortIfElementMissing("#fidoBlock");
-            this.fidoOptions = getAttributeEnsureNotNull("#credentialOptions", "value");
-            this.credentialResultKey = getAttributeEnsureNotNull("#credentialResult", "name");
-        }
-    }
-
-    public static class HTMLResult {
-        public final @Nonnull org.jsoup.nodes.Document htmlDocument;
-        public final @Nonnull URI formTarget;
-        public final @Nonnull Map<String, String> formOptions = new HashMap<>();
-
-        public @Nonnull Iterable<Map.Entry<String, String>> iterateFormOptions() { return ISNOTNULL(formOptions.entrySet()); }
-
-        /* optional links (any number may or may not be null) */
-        public final @CheckForNull URI signatureDataLink;
-        public final @CheckForNull URI smsTanLink;
-        public final @CheckForNull URI fido2Link;
-
-        /* top-level blocks (exactly one is not null) */
-        public final @CheckForNull AutoSkipBlock autoSkipBlock;
-        public final @CheckForNull InterstitialBlock interstitialBlock;
-        public final @CheckForNull ErrorBlock errorBlock;
-        public final @CheckForNull UsernamePasswordBlock usernamePasswordBlock;
-        public final @CheckForNull SMSTanBlock smsTanBlock;
-        public final @CheckForNull QRCodeBlock qrCodeBlock;
-        public final @CheckForNull WaitingForAppBlock waitingForAppBlock;
-        public final @CheckForNull WaitingForBiometryBlock waitingForBiometryBlock;
-        public final @CheckForNull Fido2Block fido2Block;
-
-        private void validate() {
-            Set<String> populated = new HashSet<>();
-
-            if (autoSkipBlock != null) populated.add("autoSkipBlock");
-            if (interstitialBlock != null) populated.add("interstitialBlock");
-            if (errorBlock != null) populated.add("errorBlock");
-            if (usernamePasswordBlock != null) populated.add("usernamePasswordBlock");
-            if (smsTanBlock != null) populated.add("smsTanBlock");
-            if (qrCodeBlock != null) populated.add("qrCodeBlock");
-            if (waitingForAppBlock != null) populated.add("waitingForAppBlock");
-            if (waitingForBiometryBlock != null) populated.add("waitingForBiometryBlock");
-            if (fido2Block != null) populated.add("fido2Block");
-
-            switch (populated.size()) {
-                case 0: log.error("Did not find any top-level blocks.\n{}", this.htmlDocument.toString()); break;
-                case 1: /* passed */ return;
-                default: log.error("Found too many top-level blocks: {}\n", String.join(", ", populated), this.htmlDocument.toString()); break;
-            }
-            throw new IllegalArgumentException("Unknown A-Trust page reached?");
-        }
-
-        private @Nullable URI getHrefIfExists(String selector) {
-            var elm = htmlDocument.selectFirst(selector);
-            if (elm == null) return null;
-
-            String url = elm.absUrl("href");
-            try {
-                return new URI(url);
-            } catch (Exception e) {
-                log.warn("Invalid {} href attribute: {} ({})", selector, elm.attr("href"), url);
-                return null;
-            }
-        }
-
-        /**
-         * tries to parse T using its constructor; if ComponentParseFailed is thrown, swallows it
-         */
-        private <T extends TopLevelFormBlock> @Nullable T TryParseMainBlock(Class<T> clazz) {
-            try {
-                return clazz.getDeclaredConstructor(org.jsoup.nodes.Document.class, Map.class).newInstance(this.htmlDocument, this.formOptions);
-            } catch (NoSuchMethodException | InstantiationException | IllegalAccessException | IllegalArgumentException | SecurityException e) {
-                log.error("Internal parser error; check your method signatures?", e);
-                return null;
-            } catch (InvocationTargetException wrappedE) {
-                Throwable e = wrappedE.getCause();
-                if (!(e instanceof ComponentParseFailed)) {
-                    if (e instanceof RuntimeException)
-                        throw (RuntimeException)e;
-                    log.warn("Unexpected parser failure.", e);
-                }
-                return null;
-            }
-        }
-
-        private HTMLResult(@Nonnull org.jsoup.nodes.Document htmlDocument) {
-            log.trace("Now parsing:\n{}", htmlDocument.toString());
-            this.htmlDocument = htmlDocument;
-
-            var forms = htmlDocument.getElementsByTag("form");
-            if (forms.size() != 1) {
-                log.error("Found {} forms in A-Trust response document, expected 1. Document:\n{}", forms.size(), htmlDocument.toString());
-                throw new IllegalArgumentException("Failed to parse A-Trust response page");
-            }
-
-            var mainForm = ISNOTNULL(forms.first()); /* size check above */
-            String formAction = mainForm.absUrl("action");
-            try {
-                this.formTarget = new URI(formAction);
-            } catch (URISyntaxException e) {
-                log.error("Invalid form target in page: {} ({})", mainForm.attr("action"), formAction, e);
-                throw new IllegalArgumentException("Failed to parse A-Trust response page");
-            }
-
-            for (var input : mainForm.select("input")) {
-                String name = input.attr("name");
-
-                if (name.isEmpty())
-                    continue;
-
-                /* submit inputs omitted here, they only get sent if they are "clicked", cf. MobileBKUConnector::buildFormSubmit */
-                if ("submit".equalsIgnoreCase(input.attr("type")))
-                    continue;
-                    
-                this.formOptions.put(name, input.attr("value"));
-            }
-
-            this.signatureDataLink = getHrefIfExists("#LinkList a[href*=\"ShowSigobj.aspx\"]"); /* grr, they didn't give it an ID */
-            this.smsTanLink = getHrefIfExists("#SmsButton");
-            this.fido2Link = getHrefIfExists("#FidoButton"); // TODO hide the button if unsupported?
-
-            this.autoSkipBlock = TryParseMainBlock(AutoSkipBlock.class);
-            this.interstitialBlock = TryParseMainBlock(InterstitialBlock.class);
-            this.errorBlock = TryParseMainBlock(ErrorBlock.class);
-            this.usernamePasswordBlock = TryParseMainBlock(UsernamePasswordBlock.class);
-            this.smsTanBlock = TryParseMainBlock(SMSTanBlock.class);
-            this.qrCodeBlock = TryParseMainBlock(QRCodeBlock.class);
-            this.waitingForAppBlock = TryParseMainBlock(WaitingForAppBlock.class);
-            this.waitingForBiometryBlock = TryParseMainBlock(WaitingForBiometryBlock.class);
-            this.fido2Block = TryParseMainBlock(Fido2Block.class);
-            
-            validate();
-        }
-    }
-
-    public static class Result {
-        public final @CheckForNull String slResponse;
-        public final @CheckForNull HTMLResult html;
-
-        private Result(@Nonnull String slResponse) { this.slResponse = slResponse; this.html = null; }
-        private Result(@Nonnull org.jsoup.nodes.Document htmlDocument) { this.slResponse = null; this.html = new HTMLResult(htmlDocument); }
-    }
-
-    public static @Nonnull Result Parse(@Nonnull org.jsoup.nodes.Document htmlDocument) { return new Result(htmlDocument); }
-
-    public static @Nonnull Result Parse(URI baseURI, String contentType, @Nonnull String content) {
-        if (contentType.equals("text/html"))
-        {
-            var document = Jsoup.parse(content, baseURI.toASCIIString());
-            if (document == null)
-            {
-                log.error("Failed to parse HTML (document == null):\n{}", content);
-                throw new IllegalArgumentException("A-Trust parsing failed");
-            }
-            return Parse(document);
-        }
-
-        if (contentType.endsWith("/xml"))
-            return new Result(content);
-        
-        log.error("Unknown content-type \"{}\" from URI {}", contentType, baseURI.toString());
-        throw new IllegalArgumentException("Unknown A-Trust page reached?");
-    }
-}