Examples with UrlRewriteFilterApplyDescriptor org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterApplyDescriptor used on opensource projects

Example 16 with UrlRewriteFilterApplyDescriptor

use of org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterApplyDescriptor in project knox by apache.

the class XmlFilterReaderTest method testBufferedApplyForAttributes.

@Test
public void testBufferedApplyForAttributes() throws Exception {
    InputStream stream = TestUtils.getResourceStream(this.getClass(), "properties-attributes.xml");
    String input = IOUtils.toString(stream, Charset.forName("UTF-8"));
    // System.out.println( "INPUT=" + input );
    UrlRewriteRulesDescriptor rulesConfig = UrlRewriteRulesDescriptorFactory.create();
    UrlRewriteFilterDescriptor filterConfig = rulesConfig.addFilter("filter-1");
    UrlRewriteFilterContentDescriptor contentConfig = filterConfig.addContent("text/xml");
    UrlRewriteFilterBufferDescriptor bufferconfig = contentConfig.addBuffer("/properties/property");
    UrlRewriteFilterApplyDescriptor applyConfig = bufferconfig.addApply("@value", "test-rule-2");
    // UrlRewriteRulesDescriptorFactory.store( rulesConfig, "xml", new PrintWriter( System.out ) );
    XmlFilterReader filter = new TestXmlFilterReader(new StringReader(input), contentConfig);
    String output = IOUtils.toString(filter);
    // System.out.println( "OUTPUT=" + output );
    assertThat(the(output), hasXPath("/properties/property[1]/@name", equalTo("test-name-1")));
    assertThat(the(output), hasXPath("/properties/property[1]/@value", equalTo("attr:test-rule-2{test-value-1}")));
    assertThat(the(output), hasXPath("/properties/property[2]/@name", equalTo("test-name-2")));
    assertThat(the(output), hasXPath("/properties/property[2]/@value", equalTo("attr:test-rule-2{test-value-2}")));
    assertThat(the(output), hasXPath("/properties/property[3]/@name", equalTo("test-name-3")));
    assertThat(the(output), hasXPath("/properties/property[3]/@value", equalTo("attr:test-rule-2{test-value-3}")));
}

Example 17 with UrlRewriteFilterApplyDescriptor

use of org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterApplyDescriptor in project knox by apache.

the class XmlFilterReaderTest method testBufferedDetectApplyForElements.

@Test
public void testBufferedDetectApplyForElements() throws Exception {
    InputStream stream = TestUtils.getResourceStream(this.getClass(), "properties-elements.xml");
    String input = IOUtils.toString(stream, Charset.forName("UTF-8"));
    // System.out.println( "INPUT=" + input );
    UrlRewriteRulesDescriptor rulesConfig = UrlRewriteRulesDescriptorFactory.create();
    UrlRewriteFilterDescriptor filterConfig = rulesConfig.addFilter("filter-1");
    UrlRewriteFilterContentDescriptor contentConfig = filterConfig.addContent("text/xml");
    UrlRewriteFilterBufferDescriptor bufferConfig = contentConfig.addBuffer("/properties/property");
    UrlRewriteFilterDetectDescriptor detectConfig = bufferConfig.addDetect("name", "test-name-2");
    UrlRewriteFilterApplyDescriptor applyConfig = detectConfig.addApply("value", "test-rule-2");
    // UrlRewriteRulesDescriptorFactory.store( rulesConfig, "xml", new PrintWriter( System.out ) );
    XmlFilterReader filter = new TestXmlFilterReader(new StringReader(input), contentConfig);
    String output = IOUtils.toString(filter);
    // System.out.println( "OUTPUT=" + output );
    assertThat(the(output), hasXPath("/properties/property[1]/name/text()", equalTo("test-name-1")));
    assertThat(the(output), hasXPath("/properties/property[1]/value/text()", equalTo("test-value-1")));
    assertThat(the(output), hasXPath("/properties/property[2]/name/text()", equalTo("test-name-2")));
    assertThat(the(output), hasXPath("/properties/property[2]/value/text()", equalTo("text:test-rule-2{test-value-2}")));
    assertThat(the(output), hasXPath("/properties/property[3]/name/text()", equalTo("test-name-3")));
    assertThat(the(output), hasXPath("/properties/property[3]/value/text()", equalTo("test-value-3")));
}

Example 18 with UrlRewriteFilterApplyDescriptor

use of org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterApplyDescriptor in project knox by apache.

the class JsonFilterReader method filterStreamValue.

protected String filterStreamValue(Level node) {
    String value;
    if (node.isArray()) {
        value = node.node.get(0).asText();
    } else {
        value = node.node.get(node.field).asText();
    }
    String rule = null;
    UrlRewriteFilterGroupDescriptor scope = node.scopeConfig;
    // TODO: Scan the top level apply rules for the first match.
    if (scope != null) {
        for (UrlRewriteFilterPathDescriptor selector : scope.getSelectors()) {
            JsonPath.Expression path = (JsonPath.Expression) selector.compiledPath(JPATH_COMPILER);
            List<JsonPath.Match> matches = path.evaluate(node.scopeNode);
            if (matches != null && !matches.isEmpty()) {
                JsonPath.Match match = matches.get(0);
                if (match.getNode().isTextual()) {
                    if (selector instanceof UrlRewriteFilterApplyDescriptor) {
                        UrlRewriteFilterApplyDescriptor apply = (UrlRewriteFilterApplyDescriptor) selector;
                        rule = apply.rule();
                        break;
                    }
                }
            }
        }
    }
    try {
        value = filterValueString(node.field, value, rule);
        if (node.isArray()) {
            ((ArrayNode) node.node).set(0, new TextNode(value));
        } else {
            ((ObjectNode) node.node).put(node.field, value);
        }
    } catch (Exception e) {
        LOG.failedToFilterValue(value, rule, e);
    }
    return value;
}

Example 19 with UrlRewriteFilterApplyDescriptor

use of org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterApplyDescriptor in project knox by apache.

the class JsonFilterReader method filterBufferedNode.

private void filterBufferedNode(Level node) {
    for (UrlRewriteFilterPathDescriptor selector : bufferingConfig.getSelectors()) {
        JsonPath.Expression path = (JsonPath.Expression) selector.compiledPath(JPATH_COMPILER);
        List<JsonPath.Match> matches = path.evaluate(node.node);
        for (JsonPath.Match match : matches) {
            if (selector instanceof UrlRewriteFilterApplyDescriptor) {
                if (match.getNode().isTextual()) {
                    filterBufferedValue(match, (UrlRewriteFilterApplyDescriptor) selector);
                }
            } else if (selector instanceof UrlRewriteFilterDetectDescriptor) {
                UrlRewriteFilterDetectDescriptor detectConfig = (UrlRewriteFilterDetectDescriptor) selector;
                JsonPath.Expression detectPath = (JsonPath.Expression) detectConfig.compiledPath(JPATH_COMPILER);
                List<JsonPath.Match> detectMatches = detectPath.evaluate(node.node);
                for (JsonPath.Match detectMatch : detectMatches) {
                    if (detectMatch.getNode().isTextual()) {
                        String detectValue = detectMatch.getNode().asText();
                        Pattern detectPattern = detectConfig.compiledValue(REGEX_COMPILER);
                        if (detectPattern.matcher(detectValue).matches()) {
                            filterBufferedValues(node, detectConfig.getSelectors());
                        }
                    }
                }
            }
        }
    }
}

Example 20 with UrlRewriteFilterApplyDescriptor

use of org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterApplyDescriptor in project knox by apache.

the class XmlFilterReader method processBufferedElement.

private void processBufferedElement(Level level, UrlRewriteFilterGroupDescriptor config) throws XPathExpressionException {
    for (UrlRewriteFilterPathDescriptor selector : config.getSelectors()) {
        if (selector instanceof UrlRewriteFilterApplyDescriptor) {
            XPathExpression path = (XPathExpression) selector.compiledPath(XPATH_COMPILER);
            Object node = path.evaluate(level.scopeNode, XPathConstants.NODE);
            if (node != null) {
                UrlRewriteFilterApplyDescriptor apply = (UrlRewriteFilterApplyDescriptor) selector;
                if (node instanceof Element) {
                    Element element = (Element) node;
                    String value = element.getTextContent();
                    value = filterText(extractQName(element), value, apply.rule());
                    element.setTextContent(value);
                } else if (node instanceof Text) {
                    Text text = (Text) node;
                    String value = text.getWholeText();
                    value = filterText(extractQName(text.getParentNode()), value, apply.rule());
                    text.replaceWholeText(value);
                } else if (node instanceof Attr) {
                    Attr attr = (Attr) node;
                    String value = attr.getValue();
                    value = filterAttribute(extractQName(attr.getOwnerElement()), extractQName(attr), value, apply.rule());
                    attr.setValue(value);
                } else {
                    throw new IllegalArgumentException(RES.unexpectedSelectedNodeType(node));
                }
            }
        } else if (selector instanceof UrlRewriteFilterDetectDescriptor) {
            XPathExpression path = (XPathExpression) selector.compiledPath(XPATH_COMPILER);
            Object node = path.evaluate(level.scopeNode, XPathConstants.NODE);
            if (node != null) {
                UrlRewriteFilterDetectDescriptor detect = (UrlRewriteFilterDetectDescriptor) selector;
                String value = null;
                if (node instanceof Element) {
                    Element element = (Element) node;
                    value = element.getTextContent();
                } else if (node instanceof Text) {
                    Text text = (Text) node;
                    value = text.getWholeText();
                } else if (node instanceof Attr) {
                    Attr attr = (Attr) node;
                    value = attr.getValue();
                } else {
                    throw new IllegalArgumentException(RES.unexpectedSelectedNodeType(node));
                }
                if (detect.compiledValue(REGEX_COMPILER).matcher(value).matches()) {
                    processBufferedElement(level, detect);
                }
            }
        } else {
            throw new IllegalArgumentException(RES.unexpectedRewritePathSelector(selector));
        }
    }
}