Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Net / System / Net / Mail / ContentDisposition.cs / 5 / ContentDisposition.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Net.Mime
{
using System;
using System.Collections;
using System.Collections.Specialized;
using System.IO;
using System.Text;
using System.Globalization;
using System.Net.Mail;
public class ContentDisposition
{
string dispositionType;
TrackingStringDictionary parameters;
bool isChanged;
bool isPersisted;
string disposition;
public ContentDisposition()
{
isChanged = true;
disposition = "attachment";
ParseValue();
}
///
/// ctor.
///
/// Unparsed header value.
public ContentDisposition(string disposition)
{
if (disposition == null)
throw new ArgumentNullException("disposition");
isChanged = true;
this.disposition = disposition;
ParseValue();
}
///
/// Gets the disposition type of the content.
///
public string DispositionType
{
get
{
return dispositionType;
}
set
{
if (value == null) {
throw new ArgumentNullException("value");
}
if (value == string.Empty) {
throw new ArgumentException(SR.GetString(SR.net_emptystringset), "value");
}
isChanged = true;
dispositionType = value;
}
}
public StringDictionary Parameters
{
get
{
if (parameters == null)
{
parameters = new TrackingStringDictionary();
}
return parameters;
}
}
///
/// Gets the value of the Filename parameter.
///
public string FileName
{
get
{
return Parameters["filename"];
}
set
{
if (value == null || value == string.Empty) {
Parameters.Remove("filename");
}
else{
Parameters["filename"] = value;
}
}
}
///
/// Gets the value of the Creation-Date parameter.
///
public DateTime CreationDate
{
get
{
string dtValue = Parameters["creation-date"];
if (dtValue == null)
return DateTime.MinValue;
int i = 0;
return MailBnfHelper.ReadDateTime(dtValue, ref i);
}
set
{
Parameters["creation-date"] = MailBnfHelper.GetDateTimeString(value, null);
}
}
///
/// Gets the value of the Modification-Date parameter.
///
public DateTime ModificationDate
{
get
{
string dtValue = Parameters["modification-date"];
if (dtValue == null)
return DateTime.MinValue;
int i = 0;
return MailBnfHelper.ReadDateTime(dtValue, ref i);
}
set
{
Parameters["modification-date"] = MailBnfHelper.GetDateTimeString(value, null);
}
}
public bool Inline {
get {
return (dispositionType == DispositionTypeNames.Inline);
}
set {
isChanged = true;
if (value) {
dispositionType = DispositionTypeNames.Inline;
}
else {
dispositionType = DispositionTypeNames.Attachment;
}
}
}
///
/// Gets the value of the Read-Date parameter.
///
public DateTime ReadDate
{
get
{
string dtValue = Parameters["read-date"];
if (dtValue == null)
return DateTime.MinValue;
int i = 0;
return MailBnfHelper.ReadDateTime(dtValue, ref i);
}
set
{
Parameters["read-date"] = MailBnfHelper.GetDateTimeString(value, null);
}
}
///
/// Gets the value of the Size parameter (-1 if unspecified).
///
public long Size
{
get
{
string sizeValue = Parameters["size"];
if (sizeValue == null)
return -1;
else
return long.Parse(sizeValue, CultureInfo.InvariantCulture);
}
set
{
Parameters["size"] = value.ToString(CultureInfo.InvariantCulture);
}
}
internal void Set(string contentDisposition, HeaderCollection headers) {
//we don't set ischanged because persistence was already handled
//via the headers.
disposition = contentDisposition;
ParseValue();
headers.InternalSet(MailHeaderInfo.GetString(MailHeaderID.ContentDisposition), ToString());
isPersisted = true;
}
internal void PersistIfNeeded(HeaderCollection headers, bool forcePersist) {
if (IsChanged || !isPersisted || forcePersist) {
headers.InternalSet(MailHeaderInfo.GetString(MailHeaderID.ContentDisposition), ToString());
isPersisted = true;
}
}
internal bool IsChanged {
get {
return (isChanged || parameters != null && parameters.IsChanged);
}
}
public override string ToString()
{
if (disposition == null || isChanged || parameters != null && parameters.IsChanged)
{
StringBuilder builder = new StringBuilder();
builder.Append(dispositionType);
foreach (string key in Parameters.Keys)
{
builder.Append("; ");
builder.Append(key);
builder.Append('=');
MailBnfHelper.GetTokenOrQuotedString(parameters[key], builder);
}
disposition = builder.ToString();
isChanged = false;
parameters.IsChanged = false;
isPersisted = false;
}
return disposition;
}
public override bool Equals(object rparam) {
if (rparam == null) {
return false;
}
return (String.Compare(ToString(), rparam.ToString(), StringComparison.OrdinalIgnoreCase ) == 0);
}
public override int GetHashCode(){
return ToString().GetHashCode();
}
void ParseValue()
{
int offset = 0;
parameters = new TrackingStringDictionary();
Exception exception = null;
try{
dispositionType = MailBnfHelper.ReadToken(disposition, ref offset, null);
if(dispositionType == null || dispositionType.Length == 0){
exception = new FormatException(SR.GetString(SR.MailHeaderFieldInvalidCharacter));
}
if (exception == null) {
while (MailBnfHelper.SkipCFWS(disposition, ref offset))
{
if (disposition[offset++] != ';')
exception = new FormatException(SR.GetString(SR.MailHeaderFieldInvalidCharacter));
if (!MailBnfHelper.SkipCFWS(disposition, ref offset))
break;
string paramAttribute = MailBnfHelper.ReadParameterAttribute(disposition, ref offset, null);
string paramValue;
if (disposition[offset++] != '='){
exception = new FormatException(SR.GetString(SR.MailHeaderFieldMalformedHeader));
break;
}
if (!MailBnfHelper.SkipCFWS(disposition, ref offset))
paramValue = string.Empty;
else if (disposition[offset] == '"')
paramValue = MailBnfHelper.ReadQuotedString(disposition, ref offset, null);
else
paramValue = MailBnfHelper.ReadToken(disposition, ref offset, null);
if(paramAttribute == null || paramValue == null || paramAttribute.Length == 0 || paramValue.Length == 0){
exception = new FormatException(SR.GetString(SR.ContentDispositionInvalid));
break;
}
//validate date-time strings
if(String.Compare(paramAttribute,"creation-date",StringComparison.OrdinalIgnoreCase) == 0 ||
String.Compare(paramAttribute,"modification-date",StringComparison.OrdinalIgnoreCase) == 0 ||
String.Compare(paramAttribute,"read-date",StringComparison.OrdinalIgnoreCase) == 0 ){
int i = 0;
MailBnfHelper.ReadDateTime(paramValue, ref i);
}
parameters.Add(paramAttribute, paramValue);
}
}
}
catch(FormatException){
throw new FormatException(SR.GetString(SR.ContentDispositionInvalid));
}
if (exception != null) {
throw exception;
}
parameters.IsChanged = false;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Net.Mime
{
using System;
using System.Collections;
using System.Collections.Specialized;
using System.IO;
using System.Text;
using System.Globalization;
using System.Net.Mail;
public class ContentDisposition
{
string dispositionType;
TrackingStringDictionary parameters;
bool isChanged;
bool isPersisted;
string disposition;
public ContentDisposition()
{
isChanged = true;
disposition = "attachment";
ParseValue();
}
///
/// ctor.
///
/// Unparsed header value.
public ContentDisposition(string disposition)
{
if (disposition == null)
throw new ArgumentNullException("disposition");
isChanged = true;
this.disposition = disposition;
ParseValue();
}
///
/// Gets the disposition type of the content.
///
public string DispositionType
{
get
{
return dispositionType;
}
set
{
if (value == null) {
throw new ArgumentNullException("value");
}
if (value == string.Empty) {
throw new ArgumentException(SR.GetString(SR.net_emptystringset), "value");
}
isChanged = true;
dispositionType = value;
}
}
public StringDictionary Parameters
{
get
{
if (parameters == null)
{
parameters = new TrackingStringDictionary();
}
return parameters;
}
}
///
/// Gets the value of the Filename parameter.
///
public string FileName
{
get
{
return Parameters["filename"];
}
set
{
if (value == null || value == string.Empty) {
Parameters.Remove("filename");
}
else{
Parameters["filename"] = value;
}
}
}
///
/// Gets the value of the Creation-Date parameter.
///
public DateTime CreationDate
{
get
{
string dtValue = Parameters["creation-date"];
if (dtValue == null)
return DateTime.MinValue;
int i = 0;
return MailBnfHelper.ReadDateTime(dtValue, ref i);
}
set
{
Parameters["creation-date"] = MailBnfHelper.GetDateTimeString(value, null);
}
}
///
/// Gets the value of the Modification-Date parameter.
///
public DateTime ModificationDate
{
get
{
string dtValue = Parameters["modification-date"];
if (dtValue == null)
return DateTime.MinValue;
int i = 0;
return MailBnfHelper.ReadDateTime(dtValue, ref i);
}
set
{
Parameters["modification-date"] = MailBnfHelper.GetDateTimeString(value, null);
}
}
public bool Inline {
get {
return (dispositionType == DispositionTypeNames.Inline);
}
set {
isChanged = true;
if (value) {
dispositionType = DispositionTypeNames.Inline;
}
else {
dispositionType = DispositionTypeNames.Attachment;
}
}
}
///
/// Gets the value of the Read-Date parameter.
///
public DateTime ReadDate
{
get
{
string dtValue = Parameters["read-date"];
if (dtValue == null)
return DateTime.MinValue;
int i = 0;
return MailBnfHelper.ReadDateTime(dtValue, ref i);
}
set
{
Parameters["read-date"] = MailBnfHelper.GetDateTimeString(value, null);
}
}
///
/// Gets the value of the Size parameter (-1 if unspecified).
///
public long Size
{
get
{
string sizeValue = Parameters["size"];
if (sizeValue == null)
return -1;
else
return long.Parse(sizeValue, CultureInfo.InvariantCulture);
}
set
{
Parameters["size"] = value.ToString(CultureInfo.InvariantCulture);
}
}
internal void Set(string contentDisposition, HeaderCollection headers) {
//we don't set ischanged because persistence was already handled
//via the headers.
disposition = contentDisposition;
ParseValue();
headers.InternalSet(MailHeaderInfo.GetString(MailHeaderID.ContentDisposition), ToString());
isPersisted = true;
}
internal void PersistIfNeeded(HeaderCollection headers, bool forcePersist) {
if (IsChanged || !isPersisted || forcePersist) {
headers.InternalSet(MailHeaderInfo.GetString(MailHeaderID.ContentDisposition), ToString());
isPersisted = true;
}
}
internal bool IsChanged {
get {
return (isChanged || parameters != null && parameters.IsChanged);
}
}
public override string ToString()
{
if (disposition == null || isChanged || parameters != null && parameters.IsChanged)
{
StringBuilder builder = new StringBuilder();
builder.Append(dispositionType);
foreach (string key in Parameters.Keys)
{
builder.Append("; ");
builder.Append(key);
builder.Append('=');
MailBnfHelper.GetTokenOrQuotedString(parameters[key], builder);
}
disposition = builder.ToString();
isChanged = false;
parameters.IsChanged = false;
isPersisted = false;
}
return disposition;
}
public override bool Equals(object rparam) {
if (rparam == null) {
return false;
}
return (String.Compare(ToString(), rparam.ToString(), StringComparison.OrdinalIgnoreCase ) == 0);
}
public override int GetHashCode(){
return ToString().GetHashCode();
}
void ParseValue()
{
int offset = 0;
parameters = new TrackingStringDictionary();
Exception exception = null;
try{
dispositionType = MailBnfHelper.ReadToken(disposition, ref offset, null);
if(dispositionType == null || dispositionType.Length == 0){
exception = new FormatException(SR.GetString(SR.MailHeaderFieldInvalidCharacter));
}
if (exception == null) {
while (MailBnfHelper.SkipCFWS(disposition, ref offset))
{
if (disposition[offset++] != ';')
exception = new FormatException(SR.GetString(SR.MailHeaderFieldInvalidCharacter));
if (!MailBnfHelper.SkipCFWS(disposition, ref offset))
break;
string paramAttribute = MailBnfHelper.ReadParameterAttribute(disposition, ref offset, null);
string paramValue;
if (disposition[offset++] != '='){
exception = new FormatException(SR.GetString(SR.MailHeaderFieldMalformedHeader));
break;
}
if (!MailBnfHelper.SkipCFWS(disposition, ref offset))
paramValue = string.Empty;
else if (disposition[offset] == '"')
paramValue = MailBnfHelper.ReadQuotedString(disposition, ref offset, null);
else
paramValue = MailBnfHelper.ReadToken(disposition, ref offset, null);
if(paramAttribute == null || paramValue == null || paramAttribute.Length == 0 || paramValue.Length == 0){
exception = new FormatException(SR.GetString(SR.ContentDispositionInvalid));
break;
}
//validate date-time strings
if(String.Compare(paramAttribute,"creation-date",StringComparison.OrdinalIgnoreCase) == 0 ||
String.Compare(paramAttribute,"modification-date",StringComparison.OrdinalIgnoreCase) == 0 ||
String.Compare(paramAttribute,"read-date",StringComparison.OrdinalIgnoreCase) == 0 ){
int i = 0;
MailBnfHelper.ReadDateTime(paramValue, ref i);
}
parameters.Add(paramAttribute, paramValue);
}
}
}
catch(FormatException){
throw new FormatException(SR.GetString(SR.ContentDispositionInvalid));
}
if (exception != null) {
throw exception;
}
parameters.IsChanged = false;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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