package yalp.templates;
import groovy.lang.Closure;
import java.beans.PropertyDescriptor;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.commons.lang.StringUtils;
import yalp.cache.Cache;
import yalp.data.validation.Error;
import yalp.data.validation.Validation;
import yalp.exceptions.TagInternalException;
import yalp.exceptions.TemplateExecutionException;
import yalp.exceptions.TemplateNotFoundException;
import yalp.libs.Codec;
import yalp.mvc.Http;
import yalp.mvc.Router.ActionDefinition;
import yalp.mvc.Scope.Flash;
import yalp.mvc.Scope.Session;
import yalp.templates.BaseTemplate.RawData;
import yalp.templates.GroovyTemplate.ExecutableTemplate;
import yalp.utils.HTML;
/**
* Fast tags implementation
*/
public class FastTags {
public static void _cache(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
String key = args.get("arg").toString();
String duration = null;
if (args.containsKey("for")) {
duration = args.get("for").toString();
}
Object cached = Cache.get(key);
if (cached != null) {
out.print(cached);
return;
}
String result = JavaExtensions.toString(body);
Cache.set(key, result, duration);
out.print(result);
}
public static void _verbatim(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
out.println(JavaExtensions.toString(body));
}
public static void _jsAction(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
out.println("function(options) {var pattern = '" + args.get("arg").toString().replace("&", "&") + "'; for(key in options) { pattern = pattern.replace(':'+key, options[key] || ''); } return pattern }");
}
public static void _jsRoute(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
final Object arg = args.get("arg");
if (!(arg instanceof ActionDefinition)) {
throw new TemplateExecutionException(template.template, fromLine, "Wrong parameter type, try #{jsRoute @Application.index() /}", new TagInternalException("Wrong parameter type"));
}
final ActionDefinition action = (ActionDefinition) arg;
out.print("{");
if (action.args.isEmpty()) {
out.print("url: function() { return '" + action.url.replace("&", "&") + "'; },");
} else {
out.print("url: function(args) { var pattern = '" + action.url.replace("&", "&") + "'; for (var key in args) { pattern = pattern.replace(':'+key, args[key] || ''); } return pattern; },");
}
out.print("method: '" + action.method + "'");
out.print("}");
}
public static void _authenticityToken(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
out.println("<input type=\"hidden\" name=\"authenticityToken\" value=\"" + Session.current().getAuthenticityToken() + "\"/>");
}
public static void _option(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
Object value = args.get("arg");
Object selectedValue = TagContext.parent("select").data.get("selected");
boolean selected = selectedValue != null && value != null && (selectedValue.toString()).equals(value.toString());
out.print("<option value=\"" + (value == null ? "" : value) + "\" " + (selected ? "selected=\"selected\"" : "") + " " + serialize(args, "selected", "value") + ">");
out.println(JavaExtensions.toString(body));
out.print("</option>");
}
/**
* Generates a html form element linked to a controller action
*
* @param args tag attributes
* @param body tag inner body
* @param out the output writer
* @param template enclosing template
* @param fromLine template line number where the tag is defined
*/
public static void _form(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
ActionDefinition actionDef = (ActionDefinition) args.get("arg");
if (actionDef == null) {
actionDef = (ActionDefinition) args.get("action");
}
String enctype = (String) args.get("enctype");
if (enctype == null) {
enctype = "application/x-www-form-urlencoded";
}
if (actionDef.star) {
actionDef.method = "POST"; // prefer POST for form ....
}
if (args.containsKey("method")) {
actionDef.method = args.get("method").toString();
}
String name = null;
if (args.containsKey("name")) {
name = args.get("name").toString();
}
String id = args.containsKey("id") ? " id=\"" + args.get("id") + "\"" : "";
String clz = args.containsKey("class") ? " class=\"" + args.get("class") + "\"" : "";
if (!("GET".equals(actionDef.method) || "POST".equals(actionDef.method))) {
String separator = actionDef.url.indexOf('?') != -1 ? "&" : "?";
actionDef.url += separator + "x-http-method-override=" + actionDef.method.toUpperCase();
actionDef.method = "POST";
}
String encoding = Http.Response.current().encoding;
out.print("<form action=\"" + actionDef.url + "\" method=\"" + actionDef.method.toLowerCase() + "\" accept-charset=\"" + encoding + "\" enctype=\"" + enctype + "\" " + serialize(args, "action", "method", "accept-charset", "enctype") + (name != null ? "name=\"" + name + "\"" : "") + id + clz + ">");
if (!("GET".equals(actionDef.method))) {
_authenticityToken(args, body, out, template, fromLine);
}
out.println(JavaExtensions.toString(body));
out.print("</form>");
}
/**
* The field tag is a helper, based on the spirit of Don't Repeat Yourself.
*
* @param args tag attributes
* @param body tag inner body
* @param out the output writer
* @param template enclosing template
* @param fromLine template line number where the tag is defined
*/
public static void _field(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
Map<String, Object> field = new HashMap<String, Object>();
String _arg = args.get("arg").toString();
field.put("name", _arg);
field.put("id", _arg.replace('.', '_'));
field.put("flash", Flash.current().get(_arg));
field.put("flashArray", field.get("flash") != null && !StringUtils.isEmpty(field.get("flash").toString()) ? field.get("flash").toString().split(",") : new String[0]);
field.put("error", Validation.error(_arg));
field.put("errorClass", field.get("error") != null ? "hasError" : "");
String[] pieces = _arg.split("\\.");
Object obj = body.getProperty(pieces[0]);
if (obj != null) {
if (pieces.length > 1) {
try {
String path = _arg.substring(_arg.indexOf(".") + 1);
Object value = PropertyUtils.getProperty(obj, path);
field.put("value", value);
} catch (Exception e) {
// if there is a problem reading the field we dont set any value
}
} else {
field.put("value", obj);
}
}
body.setProperty("field", field);
body.call();
}
/**
* Generates a html link to a controller action
*
* @param args tag attributes
* @param body tag inner body
* @param out the output writer
* @param template enclosing template
* @param fromLine template line number where the tag is defined
*/
public static void _a(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
ActionDefinition actionDef = (ActionDefinition) args.get("arg");
if (actionDef == null) {
actionDef = (ActionDefinition) args.get("action");
}
if (!("GET".equals(actionDef.method))) {
if (!("POST".equals(actionDef.method))) {
String separator = actionDef.url.indexOf('?') != -1 ? "&" : "?";
actionDef.url += separator + "x-http-method-override=" + actionDef.method;
actionDef.method = "POST";
}
String id = Codec.UUID();
out.print("<form method=\"POST\" id=\"" + id + "\" " + (args.containsKey("target") ? "target=\"" + args.get("target") + "\"" : "") + " style=\"display:none\" action=\"" + actionDef.url + "\">");
_authenticityToken(args, body, out, template, fromLine);
out.print("</form>");
out.print("<a href=\"javascript:document.getElementById('" + id + "').submit();\" " + serialize(args, "href") + ">");
out.print(JavaExtensions.toString(body));
out.print("</a>");
} else {
out.print("<a href=\"" + actionDef.url + "\" " + serialize(args, "href") + ">");
out.print(JavaExtensions.toString(body));
out.print("</a>");
}
}
public static void _ifErrors(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
if (Validation.hasErrors()) {
body.call();
TagContext.parent().data.put("_executeNextElse", false);
} else {
TagContext.parent().data.put("_executeNextElse", true);
}
}
public static void _ifError(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
if (args.get("arg") == null) {
throw new TemplateExecutionException(template.template, fromLine, "Please specify the error key", new TagInternalException("Please specify the error key"));
}
if (Validation.hasError(args.get("arg").toString())) {
body.call();
TagContext.parent().data.put("_executeNextElse", false);
} else {
TagContext.parent().data.put("_executeNextElse", true);
}
}
public static void _errorClass(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
if (args.get("arg") == null) {
throw new TemplateExecutionException(template.template, fromLine, "Please specify the error key", new TagInternalException("Please specify the error key"));
}
if (Validation.hasError(args.get("arg").toString())) {
out.print("hasError");
}
}
public static void _error(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
if (args.get("arg") == null && args.get("key") == null) {
throw new TemplateExecutionException(template.template, fromLine, "Please specify the error key", new TagInternalException("Please specify the error key"));
}
String key = args.get("arg") == null ? args.get("key") + "" : args.get("arg") + "";
Error error = Validation.error(key);
if (error != null) {
if (args.get("field") == null) {
out.print(error.message());
} else {
out.print(error.message(args.get("field") + ""));
}
}
}
static boolean _evaluateCondition(Object test) {
if (test != null) {
if (test instanceof Boolean) {
return ((Boolean) test).booleanValue();
} else if (test instanceof String) {
return ((String) test).length() > 0;
} else if (test instanceof Number) {
return ((Number) test).intValue() != 0;
} else if (test instanceof Collection) {
return !((Collection) test).isEmpty();
} else {
return true;
}
}
return false;
}
static String __safe(Template template, Object val) {
if (val instanceof RawData) {
return ((RawData) val).data;
}
if (!template.name.endsWith(".html") || TagContext.hasParentTag("verbatim")) {
return val.toString();
}
return HTML.htmlEscape(val.toString());
}
public static void _doLayout(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
out.print("____%LAYOUT%____");
}
public static void _get(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
Object name = args.get("arg");
if (name == null) {
throw new TemplateExecutionException(template.template, fromLine, "Specify a variable name", new TagInternalException("Specify a variable name"));
}
Object value = BaseTemplate.layoutData.get().get(name);
if (value != null) {
out.print(value);
} else {
if (body != null) {
out.print(JavaExtensions.toString(body));
}
}
}
public static void _set(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
// Simple case : #{set title:'Yop' /}
for (Map.Entry<?, ?> entry : args.entrySet()) {
Object key = entry.getKey();
if (!key.toString().equals("arg")) {
BaseTemplate.layoutData.get().put(key, (entry.getValue() != null && entry.getValue() instanceof String) ? __safe(template.template, entry.getValue()) : entry.getValue());
return;
}
}
// Body case
Object name = args.get("arg");
if (name != null && body != null) {
Object oldOut = body.getProperty("out");
StringWriter sw = new StringWriter();
body.setProperty("out", new PrintWriter(sw));
body.call();
BaseTemplate.layoutData.get().put(name, sw.toString());
body.setProperty("out", oldOut);
}
}
public static void _extends(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
try {
if (!args.containsKey("arg") || args.get("arg") == null) {
throw new TemplateExecutionException(template.template, fromLine, "Specify a template name", new TagInternalException("Specify a template name"));
}
String name = args.get("arg").toString();
if (name.startsWith("./")) {
String ct = BaseTemplate.currentTemplate.get().name;
if (ct.matches("^/lib/[^/]+/app/views/.*")) {
ct = ct.substring(ct.indexOf("/", 5));
}
ct = ct.substring(0, ct.lastIndexOf("/"));
name = ct + name.substring(1);
}
BaseTemplate.layout.set((BaseTemplate) TemplateLoader.load(name));
} catch (TemplateNotFoundException e) {
throw new TemplateNotFoundException(e.getPath(), template.template, fromLine);
}
}
@SuppressWarnings("unchecked")
public static void _include(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
try {
if (!args.containsKey("arg") || args.get("arg") == null) {
throw new TemplateExecutionException(template.template, fromLine, "Specify a template name", new TagInternalException("Specify a template name"));
}
String name = args.get("arg").toString();
if (name.startsWith("./")) {
String ct = BaseTemplate.currentTemplate.get().name;
if (ct.matches("^/lib/[^/]+/app/views/.*")) {
ct = ct.substring(ct.indexOf("/", 5));
}
ct = ct.substring(0, ct.lastIndexOf("/"));
name = ct + name.substring(1);
}
BaseTemplate t = (BaseTemplate) TemplateLoader.load(name);
Map<String, Object> newArgs = new HashMap<String, Object>();
newArgs.putAll(template.getBinding().getVariables());
newArgs.put("_isInclude", true);
t.internalRender(newArgs);
} catch (TemplateNotFoundException e) {
throw new TemplateNotFoundException(e.getPath(), template.template, fromLine);
}
}
@SuppressWarnings("unchecked")
public static void _render(Map<?, ?> args, Closure body, PrintWriter out, ExecutableTemplate template, int fromLine) {
try {
if (!args.containsKey("arg") || args.get("arg") == null) {
throw new TemplateExecutionException(template.template, fromLine, "Specify a template name", new TagInternalException("Specify a template name"));
}
String name = args.get("arg").toString();
if (name.startsWith("./")) {
String ct = BaseTemplate.currentTemplate.get().name;
if (ct.matches("^/lib/[^/]+/app/views/.*")) {
ct = ct.substring(ct.indexOf("/", 5));
}
ct = ct.substring(0, ct.lastIndexOf("/"));
name = ct + name.substring(1);
}
args.remove("arg");
BaseTemplate t = (BaseTemplate) TemplateLoader.load(name);
Map<String, Object> newArgs = new HashMap<String, Object>();
newArgs.putAll((Map<? extends String, ? extends Object>) args);
newArgs.put("_isInclude", true);
newArgs.put("out", out);
t.internalRender(newArgs);
} catch (TemplateNotFoundException e) {
throw new TemplateNotFoundException(e.getPath(), template.template, fromLine);
}
}
public static String serialize(Map<?, ?> args, String... unless) {
StringBuilder attrs = new StringBuilder();
Arrays.sort(unless);
for (Object o : args.keySet()) {
String attr = o.toString();
String value = args.get(o) == null ? "" : args.get(o).toString();
if (Arrays.binarySearch(unless, attr) < 0 && !attr.equals("arg")) {
attrs.append(attr);
attrs.append("=\"");
attrs.append(value);
attrs.append("\" ");
}
}
return attrs.toString();
}
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public static @interface Namespace {
String value() default "";
}
}