public static void p5_io_file_save(ApplicationContext context, ActiveEventArgs e)
{
// Sanity check.
if (e.Args.Value == null)
{
throw new LambdaException("[p5.io.file.save] requires a constant or an expression leading to its path", e.Args, context);
}
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args)) {
// Getting root folder, and converting content to blob, making sure user does use [src] and not [dest] as file content.
var rootFolder = Common.GetRootFolder(context);
var content = Utilities.Convert <byte []> (context, XUtil.Source(context, e.Args));
// Iterating through each destination file path, which probably doesn't make that much sense, but to be consistent in how we
// handle files, we still do this, such that "API" is similar to [load-file], etc.
foreach (var idxDestination in XUtil.Iterate <string> (context, e.Args))
{
// Verifying user is allowed to save to file.
Common.RaiseAuthorizeEvent(context, e.Args, "modify-file", idxDestination);
// Saving file.
using (FileStream stream = File.Create(rootFolder + Common.GetSystemPath(context, idxDestination))) {
// Writing content to file stream.
stream.Write(content, 0, content.Length);
}
}
}
}
public static void p5_string_match(ApplicationContext context, ActiveEventArgs e)
{
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args, true)) {
// Figuring out source value for [match], and returning early if there is no source.
string source = XUtil.Single <string> (context, e.Args);
if (source == null)
{
return;
}
// Retrieving what source to look for, and returning early if there is none.
var src = XUtil.Source(context, e.Args);
if (src == null)
{
return;
}
// Sanity check.
if (!(src is Regex))
{
throw new LambdaException("[match] requires a regular expression source", e.Args, context);
}
// Evaluating regular expression, and returning results.
foreach (System.Text.RegularExpressions.Match idxMatch in (src as Regex).Matches(source))
{
// Returning all groups matches.
foreach (Group idxGroup in idxMatch.Groups)
{
e.Args.Add(idxGroup.Value);
}
}
}
}
public void p5_web_return_response_object(ApplicationContext context, ActiveEventArgs e)
{
var key = XUtil.Single <string> (context, e.Args);
var source = XUtil.Source(context, e.Args);
AjaxPage.SendObject(key, Utilities.Convert <string> (context, source));
}
public static void p5_string_index_of(ApplicationContext context, ActiveEventArgs e)
{
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args, true)) {
// Figuring out source value for [index-of], and returning early if there is no source.
string source = XUtil.Single <string> (context, e.Args);
if (source == null)
{
return;
}
// Retrieving what to look for, and returning early if we have no source.
var src = XUtil.Source(context, e.Args);
if (src == null)
{
return;
}
// Checking what type of value we're looking for, and acting accordingly.
if (src is Regex)
{
// Regex type of find.
e.Args.AddRange(IndexOfRegex(source, src as Regex).Select(ix => new Node("", ix)));
}
else
{
// Simple string type of find.
e.Args.AddRange(IndexOfString(source, Utilities.Convert <string> (context, src)).Select(ix => new Node("", ix)));
}
}
}
public static void p5_string__replace(ApplicationContext context, ActiveEventArgs e)
{
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args)) {
// Figuring out source value for [replace], and returning early if there is no source.
string source = XUtil.Single <string> (context, e.Args);
if (source == null)
{
return;
}
// Retrieving what to replace it with.
var with = Utilities.Convert(context, XUtil.Source(context, e.Args, "src"), "");
// Checking what type of object we're searching for, and doing some basic sanity check.
var what = XUtil.Source(context, e.Args, "dest");
if (what == null)
{
throw new LambdaException("[replace] requires something to search for", e.Args, context);
}
if (e.Name.EndsWith("-x", System.StringComparison.CurrentCulture))
{
var regexWhat = Utilities.Convert <Regex> (context, what);
e.Args.Value = regexWhat.Replace(source, with);
}
else
{
e.Args.Value = source.Replace(Utilities.Convert <string> (context, what), with);
}
}
}
public static void zip(ApplicationContext context, ActiveEventArgs e)
{
using (new Utilities.ArgsRemover(e.Args)) {
// Getting root folder
var rootFolder = Helpers.GetBaseFolder(context);
// Getting destination file
var destination = Helpers.GetSystemPath(context, e.Args.GetExValue <string> (context));
// Getting destination path, and verify path can be legally written to
var destinationFile = Helpers.GetLegalDestinationFilename(
context,
e.Args,
rootFolder,
destination);
// Getting source file(s)
var source = XUtil.Source(context, e.Args, e.Args, "src", new string[] { "compression-level", "password", "key-size" }.ToList());
// Making sure we are able to delete zip file, if an exception occurs
try {
// Creating zip file, supplying FileStream as stream to store results into
using (ZipCreator creator = new ZipCreator(
context,
File.Create(rootFolder + destinationFile),
e.Args.GetExChildValue("compression-level", context, 3),
e.Args.GetExChildValue <string> ("password", context, null),
e.Args.GetExChildValue("key-size", context, 256))) {
// Looping through each input file/folder given
foreach (var idxSourceFileFolder in source)
{
var idxSource = Helpers.GetSystemPath(context, Utilities.Convert <string> (context, idxSourceFileFolder));
// Verifies source folder can be read from
Helpers.VerfifySourceFileFolderCanBeReadFrom(
context,
e.Args,
rootFolder,
destinationFile,
idxSource);
// Adding currently iterated file/folder to zip file stream
creator.AddToArchive(rootFolder + idxSource, e.Args);
}
}
// Making sure we return actual destination to caller
e.Args.Value = destinationFile;
} catch {
// Checking if destination file exist, and if so, delete it, before we rethrow exception
if (File.Exists(rootFolder + destinationFile))
{
File.Delete(rootFolder + destinationFile);
}
throw;
}
}
}
public static void lambda_set(ApplicationContext context, ActiveEventArgs e)
{
// Finding source value, notice that if we have no source, we still iterate each destination, such that we can set it to a "null value".
var src = XUtil.Source(context, e.Args);
// Updating destination(s) with value of source.
foreach (var idxDestination in XUtil.DestinationMatch(context, e.Args))
{
// Single source, or null source.
idxDestination.Value = src;
}
}
public static void p5_string_ends_with(ApplicationContext context, ActiveEventArgs e)
{
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args)) {
// Retrieving what to look for, and returning early if we have no source.
var src = XUtil.Source(context, e.Args);
if (src == null)
{
return;
}
// Returning to lowers of expression or constant.
e.Args.Value = XUtil.Single <string> (context, e.Args)?.EndsWithEx(Utilities.Convert <string> (context, src)) ?? false;
}
}
public static void unzip(ApplicationContext context, ActiveEventArgs e)
{
// Retrieving password, if there is one, and untying it,
// to make sure it never leaves method, in case of an exception, etc
string password = e.Args.GetExChildValue <string>("password", context, null);
e.Args.FindOrInsert("password").UnTie(); // Making sure password NEVER LEAVES METHOD!!
// Basic syntax checking
if (e.Args.Value == null)
{
throw new LambdaException(
"[unzip] needs both a destination as its value",
e.Args,
context);
}
// Making sure we clean up and remove all arguments passed in after execution
using (new Utilities.ArgsRemover(e.Args)) {
// Getting root folder
var rootFolder = Helpers.GetBaseFolder(context);
// Getting destination folder
var destFolder = GetDestinationFolder(context, e);
// Getting source files
var source = XUtil.Source(context, e.Args, e.Args, "src", new string[] { "password" }.ToList());
// Looping through each source zip file given
foreach (var idxZipFilePath in source)
{
// Unzips currently iterated file
UnzipFile(
context,
e.Args,
rootFolder,
Helpers.GetSystemPath(context, Utilities.Convert <string> (context, idxZipFilePath)),
destFolder,
password);
}
// Returning folder path of where files where unzipped to caller
e.Args.Value = destFolder;
}
}
public static void html2pdf(ApplicationContext context, ActiveEventArgs e)
{
// Making sure we clean up and remove all arguments passed in after execution
using (new ArgsRemover(e.Args, true)) {
// Assumes there's only one document, or creates one result of it.
var filename = XUtil.Single <string> (context, e.Args);
filename = context.RaiseEvent(".p5.io.unroll-path", new Node("", filename)).Get <string> (context);
// Figuring out source.
var html = XUtil.Source(context, e.Args, "css-file") as string;
// Retrieving root path of app.
var rootPath = context.RaiseEvent(".p5.core.application-folder").Get <string> (context);
// Loading up all CSS, which we'll need to pass into ParseXhtml further down.
var css = "";
foreach (var idxCssFile in e.Args.Children.Where(ix => ix.Name == "css-file"))
{
var cssFile = idxCssFile.GetExValue <string> (context);
cssFile = context.RaiseEvent(".p5.io.unroll-path", new Node("", cssFile)).Get <string> (context);
using (TextReader reader = File.OpenText(rootPath + cssFile)) {
css += reader.ReadToEnd() + "\r\n";
}
}
// Creating our document.
using (var stream = new FileStream(rootPath + filename, FileMode.Create)) {
using (var document = new Document(PageSize.A4, 55, 55, 70, 70)) {
using (var writer = PdfWriter.GetInstance(document, stream)) {
document.Open();
using (var htmlStream = new MemoryStream(Encoding.UTF8.GetBytes(html))) {
using (var cssStream = new MemoryStream(Encoding.UTF8.GetBytes(css))) {
XMLWorkerHelper.GetInstance().ParseXHtml(writer, document, htmlStream, cssStream);
}
}
document.Close();
}
}
}
}
}
public static void p5_data_update(ApplicationContext context, ActiveEventArgs e)
{
// Retrieving expression and doing some basic sanity checks.
if (!(e.Args.Value is Expression))
{
throw new LambdaException("[p5.data.update] requires an expression leading to whatever you want to be updated in your database", e.Args, context);
}
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args)) {
// Acquiring write lock on database.
using (new Common.Lock(true)) {
// Storing affected nodes, and number of affected items.
var changed = new List <Node> ();
int affectedItems = 0;
// Retrieving source, and iterating through each destination, updating with source value.
// Notice, we don't provide transaction support here, but we do make sure at least any changes
// that actually occurs, are serialized to disc!
var source = XUtil.Source(context, e.Args);
try {
foreach (var idxDestination in e.Args.Get <Expression> (context).Evaluate(context, Common.Database, e.Args))
{
// Updates the destination with the source, making sure we can keep track of files that are changed, and that we throw if update is unsuccessful.
if (!UpdateDestination(context, source, idxDestination))
{
throw new LambdaException("[p5.data.update] requires your new node needs to have a unique ID, or use its old ID by not providing one", e.Args, context);
}
Common.AddNodeToChanges(idxDestination.Node, changed);
affectedItems += 1;
}
} finally {
Common.SaveAffectedFiles(context, changed);
e.Args.Value = affectedItems;
}
}
}
}
public static void p5_data_update(ApplicationContext context, ActiveEventArgs e)
{
// Retrieving expression and doing some basic sanity checks.
if (!(e.Args.Value is Expression))
{
throw new LambdaException("[p5.data.update] requires an expression leading to whatever you want to be updated in your database", e.Args, context);
}
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(e.Args)) {
// Acquiring write lock on database, and making sure we keep track of which files are changed, and how many items were affected.
var changed = new List <Node> ();
int affectedItems = 0;
Common.Locker.EnterWriteLock();
try {
// Retrieving source, and iterating through each destination, updating with source value.
var source = XUtil.Source(context, e.Args);
foreach (var idxDestination in e.Args.Get <Expression> (context).Evaluate(context, Common.Database, e.Args))
{
// Updates the destination with the source, making sure we can keep track of files that are changed, and that we throw is update is unsuccessful.
if (!UpdateDestination(context, source, idxDestination))
{
throw new LambdaException("[p5.data.update] requires your new node needs to have a unique ID, or use its old ID by not providing one", e.Args, context);
}
Common.AddNodeToChanges(idxDestination.Node, changed);
affectedItems += 1;
}
} finally {
// Saving all affected files.
// Notice, we do this even though an exception has occurred, since exception is thrown before nodes are updated with any "bad data".
// This means that if you update several nodes, some might become updated though, while others are not updated.
// Hence, [p5.data.update] does not feature any sorts of "transactional update support" at the moment.
Common.SaveAffectedFiles(context, changed);
e.Args.Value = affectedItems;
Common.Locker.ExitWriteLock();
}
}
}
public static void p5_string__replace(ApplicationContext context, ActiveEventArgs e)
{
// Sanity check.
if (e.Args.Value == null)
{
throw new LambdaException("[p5.string.replace] requires an expression or constant as its value", e.Args, context);
}
// Making sure we clean up and remove all arguments passed in after execution.
using (new Utilities.ArgsRemover(e.Args)) {
// Figuring out source value for [replace], and returning early if there is no source.
string source = XUtil.Single <string> (context, e.Args);
if (source == null)
{
return;
}
// Retrieving what to replace it with.
var with = Utilities.Convert(context, XUtil.Source(context, e.Args, "src"), "");
// Checking what type of object we're searching for, and doing some basic sanity check.
var what = XUtil.Source(context, e.Args, "dest");
if (what == null)
{
throw new LambdaException("[p5.string.replace] requires something to search for", e.Args, context);
}
else if (what is Regex)
{
e.Args.Value = (what as Regex).Replace(source, with);
}
else
{
e.Args.Value = source.Replace(Utilities.Convert <string> (context, what), with);
}
}
}
/*
* Common helper for iterating files/folders for move/copy/rename operation.
*/
internal static void CopyMoveFileObject(
ApplicationContext context,
Node args,
string sourceAuthorizeEvent,
string destinationAuthorizeEvent,
MoveCopyDelegate functorMoveObject,
ObjectExistDelegate functorObjectExist)
{
// Sanity check.
if (args.Value == null)
{
throw new LambdaException(
string.Format("[{0}] requires a value being the source file(s) to operate upon", args.Name),
args,
context);
}
// Making sure we clean up and remove all arguments passed in after execution.
using (new ArgsRemover(args)) {
// Retrieving destination file or folder, and root folder for app, making sure we get a [dest] node for destination.
var dest = Common.GetSystemPath(context, Utilities.Convert <string> (context, XUtil.Source(context, args, "src")));
var rootFolder = Common.GetRootFolder(context);
// Iterating through each source.
foreach (var idxSource in XUtil.Iterate <string> (context, args))
{
// Figuring out destination file, which might be "relative" to currently iterated source file.
var destinationFile = dest.EndsWithEx("/") ? dest + idxSource.Substring(idxSource.LastIndexOfEx("/") + 1) : dest;
// Making sure user is authorized to do operation on both source file and destination file.
Common.RaiseAuthorizeEvent(context, args, sourceAuthorizeEvent, idxSource);
Common.RaiseAuthorizeEvent(context, args, destinationAuthorizeEvent, destinationFile);
// Making sure destination file does not already exist.
if (functorObjectExist(rootFolder + destinationFile))
{
throw new LambdaException(string.Format("The file '{0}' already exist from before", destinationFile), args, context);
}
functorMoveObject(
rootFolder,
Common.GetSystemPath(context, Utilities.Convert <string> (context, idxSource)),
destinationFile);
}
}
}
