Ejemplo n.º 1
0
        private ErrorLogEntry LoadErrorLogEntry(string path)
        {
            for (var i = 0; i < 5; i++)
            {
                try
                {
                    using var reader = XmlReader.Create(path, new XmlReaderSettings()
                    {
                        CheckCharacters = false
                    });
                    if (!reader.IsStartElement("error"))
                    {
                        return(null);
                    }

                    var id    = reader.GetAttribute("errorId");
                    var error = ErrorXml.Decode(reader);
                    return(new ErrorLogEntry(this, id, error));
                }
                catch (IOException)
                {
                    //ignored
                    Task.Delay(500).GetAwaiter().GetResult();
                }
            }

            throw new IOException("");
        }
Ejemplo n.º 2
0
        /// <summary>
        ///     Returns the specified error from the filesystem, or throws an exception if it does not exist.
        /// </summary>
        public override ErrorLogEntry GetError(string id)
        {
            try
            {
                id = new Guid(id).ToString(); // validate GUID
            }
            catch (FormatException e)
            {
                throw new ArgumentException(e.Message, id, e);
            }

            var file = new DirectoryInfo(LogPath).GetFiles($"error-*-{id}.xml")
                       .FirstOrDefault();

            if (file == null)
            {
                return(null);
            }

            if (!IsUserFile(file.Attributes))
            {
                return(null);
            }

            using var reader = XmlReader.Create(file.FullName);
            return(new ErrorLogEntry(this, id, ErrorXml.Decode(reader)));
        }
Ejemplo n.º 3
0
        private void ErrorsXmlToList(XmlReader reader, ICollection <ErrorLogEntry> errorEntryList)
        {
            Debug.Assert(reader != null);

            if (errorEntryList != null)
            {
                while (reader.IsStartElement("error"))
                {
                    string id    = reader.GetAttribute("errorId");
                    Error  error = ErrorXml.Decode(reader);
                    errorEntryList.Add(new ErrorLogEntry(this, id, error));
                }
            }
        }
Ejemplo n.º 4
0
        private ErrorLogEntry LoadErrorLogEntry(string path)
        {
            using (var reader = XmlReader.Create(path))
            {
                if (!reader.IsStartElement("error"))
                {
                    return(null);
                }

                var id    = reader.GetAttribute("errorId");
                var error = ErrorXml.Decode(reader);
                return(new ErrorLogEntry(this, id, error));
            }
        }
Ejemplo n.º 5
0
        public static void ProcessRequest(HttpContext context, ErrorLog errorLog)
        {
            var response = context.Response;

            response.ContentType = "application/xml";

            //
            // Retrieve the ID of the requested error and read it from
            // the store.
            //

            var errorId = context.Request.Query["id"].FirstOrDefault();

            if (string.IsNullOrEmpty(errorId))
            {
                throw new ApplicationException("Missing error identifier specification.");
            }

            var entry = errorLog.GetError(errorId);

            //
            // Perhaps the error has been deleted from the store? Whatever
            // the reason, pretend it does not exist.
            //

            if (entry == null)
            {
                context.Response.StatusCode = 404;
            }

            //
            // Stream out the error as formatted XML.
            //

            var settings = new XmlWriterSettings();

            settings.Indent = true;
            settings.NewLineOnAttributes = true;
            settings.CheckCharacters     = false;
            var writer = XmlWriter.Create(response.Body, settings);

            writer.WriteStartDocument();
            writer.WriteStartElement("error");
            ErrorXml.Encode(entry.Error, writer);
            writer.WriteEndElement(/* error */);
            writer.WriteEndDocument();
            writer.Flush();
        }
Ejemplo n.º 6
0
        /// <summary>
        /// Logs an error to the database.
        /// </summary>
        /// <remarks>
        /// Logs an error as a single XML file stored in a folder. XML files are named with a
        /// sortable date and a unique identifier. Currently the XML files are stored indefinately.
        /// As they are stored as files, they may be managed using standard scheduled jobs.
        /// </remarks>

        public override string Log(Error error)
        {
            var logPath = LogPath;

            if (!Directory.Exists(logPath))
            {
                Directory.CreateDirectory(logPath);
            }

            var errorId = Guid.NewGuid().ToString();

            var timeStamp = (error.Time > DateTime.MinValue ? error.Time : DateTime.Now);

            var fileName = string.Format(CultureInfo.InvariantCulture,
                                         @"error-{0:yyyy-MM-ddHHmmssZ}-{1}.xml",
                                         /* 0 */ timeStamp.ToUniversalTime(),
                                         /* 1 */ errorId);

            var path = Path.Combine(logPath, fileName);

            try
            {
                using (var writer = new XmlTextWriter(path, Encoding.UTF8))
                {
                    writer.Formatting = Formatting.Indented;
                    writer.WriteStartElement("error");
                    writer.WriteAttributeString("errorId", errorId);
                    ErrorXml.Encode(error, writer);
                    writer.WriteEndElement();
                    writer.Flush();
                }
            }
            catch (IOException)
            {
                // If an IOException is thrown during writing the file,
                // it means that we will have an either empty or
                // partially written XML file on disk. In both cases,
                // the file won't be valid and would cause an error in
                // the UI.
                File.Delete(path);
                throw;
            }

            return(errorId);
        }
Ejemplo n.º 7
0
        /// <summary>
        /// Returns the specified error from the database, or null
        /// if it does not exist.
        /// </summary>

        public override ErrorLogEntry GetError(string id)
        {
            if (id == null)
            {
                throw new ArgumentNullException("id");
            }

            if (id.Length == 0)
            {
                throw new ArgumentException(null, "id");
            }

            Guid errorGuid;

            try
            {
                errorGuid = new Guid(id);
            }
            catch (FormatException e)
            {
                throw new ArgumentException(e.Message, "id", e);
            }

            string errorXml;

            using (SqlConnection connection = new SqlConnection(this.ConnectionString))
                using (SqlCommand command = Commands.GetErrorXml(this.ApplicationName, errorGuid))
                {
                    command.Connection = connection;
                    connection.Open();
                    errorXml = (string)command.ExecuteScalar();
                }

            if (errorXml == null)
            {
                return(null);
            }

            Error error = ErrorXml.DecodeString(errorXml);

            return(new ErrorLogEntry(this, id, error));
        }
Ejemplo n.º 8
0
        /// <summary>
        /// Returns the specified error from the database, or null
        /// if it does not exist.
        /// </summary>
        public override ErrorLogEntry GetError(string id)
        {
            if (id == null)
            {
                throw new ArgumentNullException("id");
            }
            if (id.Length == 0)
            {
                throw new ArgumentException(null, "id");
            }
            string errorXml    = string.Empty;
            var    connections = new List <string>();

            if (this.ConnectionString.Contains(","))
            {
                foreach (var connection in this.ConnectionString.Split(','))
                {
                    connections.Add(connection);
                }
            }
            var redisManager = connections.Count() == 0 ? new RedisManagerPool(this.ConnectionString) : new RedisManagerPool(connections);

            using (var client = redisManager.GetClient())
            {
                Guid errorGuid   = new Guid(id);
                var  redis       = client.As <RedisObject>();
                var  redisObject = redis.GetById(errorGuid);
                if (redisObject != null)
                {
                    errorXml = redisObject.AllXml;
                }
            }
            if (errorXml == null)
            {
                return(null);
            }

            Error error = ErrorXml.DecodeString(errorXml);

            return(new ErrorLogEntry(this, id, error));
        }
Ejemplo n.º 9
0
        /// <summary>
        /// Logs an error to the database.
        /// </summary>
        /// <remarks>
        /// Use the stored procedure called by this implementation to set a
        /// policy on how long errors are kept in the log. The default
        /// implementation stores all errors for an indefinite time.
        /// </remarks>
        public override string Log(Error error)
        {
            if (error == null)
            {
                throw new ArgumentNullException("error");
            }
            string errorXml    = ErrorXml.EncodeString(error);
            Guid   id          = Guid.NewGuid();
            var    connections = new List <string>();

            if (this.ConnectionString.Contains(","))
            {
                foreach (var connection in this.ConnectionString.Split(','))
                {
                    connections.Add(connection);
                }
            }
            var redisManager = connections.Count() == 0 ? new RedisManagerPool(this.ConnectionString) : new RedisManagerPool(connections);

            using (var client = redisManager.GetClient())
            {
                var redis       = client.As <RedisObject>();
                var redisObject = new RedisObject()
                {
                    AllXml      = errorXml,
                    Application = this.ApplicationName,
                    ErrorId     = id,
                    Host        = error.HostName,
                    Message     = error.Message,
                    Source      = error.Source,
                    StatusCode  = error.StatusCode,
                    TimeUtc     = error.Time.ToUniversalTime(),
                    Type        = error.Type,
                    User        = error.User,
                    Id          = id
                };
                redis.AddToRecentsList(redisObject);
                redis.Store(redisObject);
            }
            return(id.ToString());
        }
Ejemplo n.º 10
0
        /// <summary>
        /// Logs an error to the database.
        /// </summary>
        /// <remarks>
        /// Use the stored procedure called by this implementation to set a
        /// policy on how long errors are kept in the log. The default
        /// implementation stores all errors for an indefinite time.
        /// </remarks>

        public override string Log(Error error)
        {
            if (error == null)
            {
                throw new ArgumentNullException("error");
            }

            string errorXml = ErrorXml.EncodeString(error);
            Guid   id       = Guid.NewGuid();

            using (SqlConnection connection = new SqlConnection(this.ConnectionString))
                using (SqlCommand command = Commands.LogError(
                           id, this.ApplicationName,
                           error.HostName, error.Type, error.Source, error.Message, error.User,
                           error.StatusCode, error.Time.ToUniversalTime(), errorXml))
                {
                    command.Connection = connection;
                    connection.Open();
                    command.ExecuteNonQuery();
                    return(id.ToString());
                }
        }
Ejemplo n.º 11
0
        /// <summary>
        /// Returns a page of errors from the databse in descending order
        /// of logged time.
        /// </summary>
        public override int GetErrors(int pageIndex, int pageSize, ICollection <ErrorLogEntry> errorEntryList)
        {
            if (pageIndex < 0)
            {
                throw new ArgumentOutOfRangeException("pageIndex", pageIndex, null);
            }
            if (pageSize < 0)
            {
                throw new ArgumentOutOfRangeException("pageSize", pageSize, null);
            }
            var connections = new List <string>();

            if (this.ConnectionString.Contains(","))
            {
                foreach (var connection in this.ConnectionString.Split(','))
                {
                    connections.Add(connection);
                }
            }
            var redisManager = connections.Count() == 0 ? new RedisManagerPool(this.ConnectionString) : new RedisManagerPool(connections);

            using (var client = redisManager.GetClient())
            {
                var redis   = client.As <RedisObject>();
                var index   = pageIndex - 1;
                var objects = redis.GetLatestFromRecentsList(1, pageSize);
                foreach (var redisError in objects)
                {
                    errorEntryList.Add(new ErrorLogEntry(this, redisError.ErrorId.ToString(), ErrorXml.DecodeString(redisError.AllXml)));
                }
                var total = client.As <RedisObject>().GetAll().Count();
                return(total);
            }
        }