/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFApplication.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFDictionary.h"
#import "OFFile.h"
#import "OFFileManager.h"
#import "OFHTTPClient.h"
#import "OFHTTPRequest.h"
#import "OFHTTPResponse.h"
#import "OFOptionsParser.h"
#import "OFStdIOStream.h"
#import "OFSystemInfo.h"
#import "OFTCPSocket.h"
#import "OFTLSSocket.h"
#import "OFURL.h"
#import "OFLocalization.h"
#import "OFSandbox.h"
#import "OFAddressTranslationFailedException.h"
#import "OFConnectionFailedException.h"
#import "OFHTTPRequestFailedException.h"
#import "OFInvalidFormatException.h"
#import "OFInvalidServerReplyException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfRangeException.h"
#import "OFReadFailedException.h"
#import "OFRetrieveItemAttributesFailedException.h"
#import "OFUnsupportedProtocolException.h"
#import "OFWriteFailedException.h"
#import "ProgressBar.h"
#define GIBIBYTE (1024 * 1024 * 1024)
#define MEBIBYTE (1024 * 1024)
#define KIBIBYTE (1024)
@interface OFHTTP: OFObject <OFHTTPClientDelegate>
{
OFArray OF_GENERIC(OFString *) *_URLs;
size_t _URLIndex;
int _errorCode;
OFString *_outputPath, *_currentFileName;
bool _continue, _force, _detectFileName, _detectedFileName;
bool _quiet, _verbose, _insecure;
OFData *_body;
of_http_request_method_t _method;
OFMutableDictionary *_clientHeaders;
OFHTTPClient *_HTTPClient;
char *_buffer;
OFStream *_output;
intmax_t _received, _length, _resumedFrom;
ProgressBar *_progressBar;
}
- (void)downloadNextURL;
@end
OF_APPLICATION_DELEGATE(OFHTTP)
static void
help(OFStream *stream, bool full, int status)
{
[of_stderr writeLine:
OF_LOCALIZED(@"usage",
@"Usage: %[prog] -[cehHmoOPqv] url1 [url2 ...]",
@"prog", [OFApplication programName])];
if (full) {
[stream writeString: @"\n"];
[stream writeLine: OF_LOCALIZED(@"full_usage",
@"Options:\n "
@"-b --body "
@" Specify the file to send as body\n "
@"-c --continue "
@" Continue download of existing file\n "
@"-f --force "
@" Force / overwrite existing file\n "
@"-h --help "
@" Show this help\n "
@"-H --header "
@" Add a header (e.g. X-Foo:Bar)\n "
@"-m --method "
@" Set the method of the HTTP request\n "
@"-o --output "
@" Specify output file name\n "
@"-O --detect-filename"
@" Do a HEAD request to detect the file name\n "
@"-P --proxy "
@" Specify SOCKS5 proxy\n "
@"-q --quiet "
@" Quiet mode (no output, except errors)\n "
@"-v --verbose "
@" Verbose mode (print headers)\n "
@" --insecure "
@" Ignore TLS errors")];
}
[OFApplication terminateWithStatus: status];
}
static OFString *
fileNameFromContentDisposition(OFString *contentDisposition)
{
void *pool;
const char *UTF8String;
size_t UTF8StringLength;
enum {
DISPOSITION_TYPE,
DISPOSITION_TYPE_SEMICOLON,
DISPOSITION_PARAM_NAME_SKIP_SPACE,
DISPOSITION_PARAM_NAME,
DISPOSITION_PARAM_VALUE,
DISPOSITION_PARAM_QUOTED,
DISPOSITION_EXPECT_SEMICOLON
} state;
size_t last;
OFString *type = nil, *paramName = nil, *paramValue;
OFMutableDictionary *params;
OFString *fileName;
if (contentDisposition == nil)
return nil;
pool = objc_autoreleasePoolPush();
UTF8String = [contentDisposition UTF8String];
UTF8StringLength = [contentDisposition UTF8StringLength];
state = DISPOSITION_TYPE;
params = [OFMutableDictionary dictionary];
last = 0;
for (size_t i = 0; i < UTF8StringLength; i++) {
switch (state) {
case DISPOSITION_TYPE:
if (UTF8String[i] == ';' || UTF8String[i] == ' ') {
type = [OFString
stringWithUTF8String: UTF8String
length: i];
state = (UTF8String[i] == ';'
? DISPOSITION_PARAM_NAME_SKIP_SPACE
: DISPOSITION_TYPE_SEMICOLON);
last = i + 1;
}
break;
case DISPOSITION_TYPE_SEMICOLON:
if (UTF8String[i] == ';') {
state = DISPOSITION_PARAM_NAME_SKIP_SPACE;
last = i + 1;
} else if (UTF8String[i] != ' ') {
objc_autoreleasePoolPop(pool);
return nil;
}
break;
case DISPOSITION_PARAM_NAME_SKIP_SPACE:
if (UTF8String[i] != ' ') {
state = DISPOSITION_PARAM_NAME;
last = i;
i--;
}
break;
case DISPOSITION_PARAM_NAME:
if (UTF8String[i] == '=') {
paramName = [OFString
stringWithUTF8String: UTF8String + last
length: i - last];
state = DISPOSITION_PARAM_VALUE;
}
break;
case DISPOSITION_PARAM_VALUE:
if (UTF8String[i] == '"') {
state = DISPOSITION_PARAM_QUOTED;
last = i + 1;
} else {
objc_autoreleasePoolPop(pool);
return nil;
}
break;
case DISPOSITION_PARAM_QUOTED:
if (UTF8String[i] == '"') {
paramValue = [OFString
stringWithUTF8String: UTF8String + last
length: i - last];
[params setObject: paramValue
forKey: paramName];
state = DISPOSITION_EXPECT_SEMICOLON;
}
break;
case DISPOSITION_EXPECT_SEMICOLON:
if (UTF8String[i] == ';') {
state = DISPOSITION_PARAM_NAME_SKIP_SPACE;
last = i + 1;
} else if (UTF8String[i] != ' ') {
objc_autoreleasePoolPop(pool);
return nil;
}
break;
}
}
if (state != DISPOSITION_EXPECT_SEMICOLON) {
objc_autoreleasePoolPop(pool);
return nil;
}
if (![type isEqual: @"attachment"] ||
(fileName = [params objectForKey: @"filename"]) == nil) {
objc_autoreleasePoolPop(pool);
return nil;
}
fileName = [fileName lastPathComponent];
[fileName retain];
objc_autoreleasePoolPop(pool);
return [fileName autorelease];
}
@implementation OFHTTP
- (instancetype)init
{
self = [super init];
@try {
_method = OF_HTTP_REQUEST_METHOD_GET;
_clientHeaders = [[OFMutableDictionary alloc]
initWithObject: @"OFHTTP"
forKey: @"User-Agent"];
_HTTPClient = [[OFHTTPClient alloc] init];
[_HTTPClient setDelegate: self];
_buffer = [self allocMemoryWithSize: [OFSystemInfo pageSize]];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)addHeader: (OFString *)header
{
size_t pos = [header rangeOfString: @":"].location;
OFString *name, *value;
if (pos == OF_NOT_FOUND) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_header",
@"%[prog]: Headers must to be in format name:value!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
name = [header substringWithRange: of_range(0, pos)];
name = [name stringByDeletingEnclosingWhitespaces];
value = [header substringWithRange:
of_range(pos + 1, [header length] - pos - 1)];
value = [value stringByDeletingEnclosingWhitespaces];
[_clientHeaders setObject: value
forKey: name];
}
- (void)setBody: (OFString *)file
{
[_body release];
if ([file isEqual: @"-"]) {
void *pool = objc_autoreleasePoolPush();
_body = [[of_stdin readDataUntilEndOfStream] copy];
objc_autoreleasePoolPop(pool);
} else
_body = [[OFData alloc] initWithContentsOfFile: file];
}
- (void)setMethod: (OFString *)method
{
void *pool = objc_autoreleasePoolPush();
method = [method uppercaseString];
if ([method isEqual: @"GET"])
_method = OF_HTTP_REQUEST_METHOD_GET;
else if ([method isEqual: @"HEAD"])
_method = OF_HTTP_REQUEST_METHOD_HEAD;
else if ([method isEqual: @"POST"])
_method = OF_HTTP_REQUEST_METHOD_POST;
else if ([method isEqual: @"PUT"])
_method = OF_HTTP_REQUEST_METHOD_PUT;
else if ([method isEqual: @"DELETE"])
_method = OF_HTTP_REQUEST_METHOD_DELETE;
else if ([method isEqual: @"TRACE"])
_method = OF_HTTP_REQUEST_METHOD_TRACE;
else {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_method",
@"%[prog]: Invalid request method %[method]!",
@"prog", [OFApplication programName],
@"method", method)];
[OFApplication terminateWithStatus: 1];
}
objc_autoreleasePoolPop(pool);
}
- (void)setProxy: (OFString *)proxy
{
@try {
size_t pos = [proxy
rangeOfString: @":"
options: OF_STRING_SEARCH_BACKWARDS].location;
OFString *host;
intmax_t port;
if (pos == OF_NOT_FOUND)
@throw [OFInvalidFormatException exception];
host = [proxy substringWithRange: of_range(0, pos)];
port = [[proxy substringWithRange:
of_range(pos + 1, [proxy length] - pos - 1)] decimalValue];
if (port > UINT16_MAX)
@throw [OFOutOfRangeException exception];
[OFTCPSocket setSOCKS5Host: host];
[OFTCPSocket setSOCKS5Port: (uint16_t)port];
} @catch (OFInvalidFormatException *e) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_input_proxy",
@"%[prog]: Proxy must to be in format host:port!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
}
- (void)applicationDidFinishLaunching
{
OFString *outputPath;
const of_options_parser_option_t options[] = {
{ 'b', @"body", 1, NULL, NULL },
{ 'c', @"continue", 0, &_continue, NULL },
{ 'f', @"force", 0, &_force, NULL },
{ 'h', @"help", 0, NULL, NULL },
{ 'H', @"header", 1, NULL, NULL },
{ 'm', @"method", 1, NULL, NULL },
{ 'o', @"output", 1, NULL, &outputPath },
{ 'O', @"detect-filename", 0, &_detectFileName, NULL },
{ 'P', @"socks5-proxy", 1, NULL, NULL },
{ 'q', @"quiet", 0, &_quiet, NULL },
{ 'v', @"verbose", 0, &_verbose, NULL },
{ '\0', @"insecure", 0, &_insecure, NULL },
{ '\0', nil, 0, NULL, NULL }
};
OFOptionsParser *optionsParser;
of_unichar_t option;
#ifdef OF_HAVE_SANDBOX
OFSandbox *sandbox = [[OFSandbox alloc] init];
@try {
[sandbox setAllowsStdIO: true];
[sandbox setAllowsReadingFiles: true];
[sandbox setAllowsWritingFiles: true];
[sandbox setAllowsCreatingFiles: true];
[sandbox setAllowsIPSockets: true];
[sandbox setAllowsDNS: true];
[sandbox setAllowsTTY: true];
[OFApplication activateSandbox: sandbox];
} @finally {
[sandbox release];
}
#endif
#ifndef OF_MORPHOS
[OFLocalization addLanguageDirectory: @LANGUAGE_DIR];
#else
[OFLocalization addLanguageDirectory: @"PROGDIR:/share/ofhttp/lang"];
#endif
optionsParser = [OFOptionsParser parserWithOptions: options];
while ((option = [optionsParser nextOption]) != '\0') {
switch (option) {
case 'b':
[self setBody: [optionsParser argument]];
break;
case 'h':
help(of_stdout, true, 0);
break;
case 'H':
[self addHeader: [optionsParser argument]];
break;
case 'm':
[self setMethod: [optionsParser argument]];
break;
case 'P':
[self setProxy: [optionsParser argument]];
break;
case ':':
if ([optionsParser lastLongOption] != nil)
[of_stderr writeLine:
OF_LOCALIZED(@"long_argument_missing",
@"%[prog]: Argument for option --%[opt] "
@"missing"
@"prog", [OFApplication programName],
@"opt", [optionsParser lastLongOption])];
else {
OFString *optStr = [OFString
stringWithFormat: @"%c",
[optionsParser lastOption]];
[of_stderr writeLine:
OF_LOCALIZED(@"argument_missing",
@"%[prog]: Argument for option -%[opt] "
@"missing",
@"prog", [OFApplication programName],
@"opt", optStr)];
}
[OFApplication terminateWithStatus: 1];
break;
case '=':
[of_stderr writeLine:
OF_LOCALIZED(@"option_takes_no_argument",
@"%[prog]: Option --%[opt] takes no argument",
@"prog", [OFApplication programName],
@"opt", [optionsParser lastLongOption])];
[OFApplication terminateWithStatus: 1];
break;
case '?':
if ([optionsParser lastLongOption] != nil)
[of_stderr writeLine:
OF_LOCALIZED(@"unknown_long_option",
@"%[prog]: Unknown option: --%[opt]",
@"prog", [OFApplication programName],
@"opt", [optionsParser lastLongOption])];
else {
OFString *optStr = [OFString
stringWithFormat: @"%c",
[optionsParser lastOption]];
[of_stderr writeLine:
OF_LOCALIZED(@"unknown_option",
@"%[prog]: Unknown option: -%[opt]",
@"prog", [OFApplication programName],
@"opt", optStr)];
}
[OFApplication terminateWithStatus: 1];
break;
}
}
_outputPath = [outputPath copy];
_URLs = [[optionsParser remainingArguments] retain];
if ([_URLs count] < 1)
help(of_stderr, false, 1);
if (_quiet && _verbose) {
[of_stderr writeLine: OF_LOCALIZED(@"quiet_xor_verbose",
@"%[prog]: -q / --quiet and -v / --verbose are mutually "
@"exclusive!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
if (_outputPath != nil && [_URLs count] > 1) {
[of_stderr writeLine:
OF_LOCALIZED(@"output_only_with_one_url",
@"%[prog]: Cannot use -o / --output when more than one URL "
@"has been specified!",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
- (void)client: (OFHTTPClient *)client
didCreateSocket: (OF_KINDOF(OFTCPSocket *))sock
request: (OFHTTPRequest *)request
context: (id)context
{
if (_insecure && [sock respondsToSelector:
@selector(setCertificateVerificationEnabled:)])
[sock setCertificateVerificationEnabled: false];
}
- (bool)client: (OFHTTPClient *)client
shouldFollowRedirect: (OFURL *)URL
statusCode: (int)statusCode
request: (OFHTTPRequest *)request
response: (OFHTTPResponse *)response
context: (id)context
{
if (!_quiet)
[of_stdout writeFormat: @" ➜ %d\n", statusCode];
if (_verbose) {
void *pool = objc_autoreleasePoolPush();
OFDictionary OF_GENERIC(OFString *, OFString *) *headers =
[response headers];
OFEnumerator *keyEnumerator = [headers keyEnumerator];
OFEnumerator *objectEnumerator =
[headers objectEnumerator];
OFString *key, *object;
while ((key = [keyEnumerator nextObject]) != nil &&
(object = [objectEnumerator nextObject]) != nil)
[of_stdout writeFormat: @" %@: %@\n",
key, object];
objc_autoreleasePoolPop(pool);
}
if (!_quiet)
[of_stdout writeFormat: @"☇ %@", [URL string]];
return true;
}
- (void)client: (OFHTTPClient *)client
didEncounterException: (id)e
forRequest: (OFHTTPRequest *)request
context: (id)context
{
if ([e isKindOfClass: [OFAddressTranslationFailedException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine:
OF_LOCALIZED(@"download_failed_address_translation",
@"%[prog]: Failed to download <%[url]>!\n"
@" Address translation failed: %[exception]",
@"prog", [OFApplication programName],
@"url", [[request URL] string],
@"exception", e)];
} else if ([e isKindOfClass: [OFConnectionFailedException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine:
OF_LOCALIZED(@"download_failed_connection_failed",
@"%[prog]: Failed to download <%[url]>!\n"
@" Connection failed: %[exception]",
@"prog", [OFApplication programName],
@"url", [[request URL] string],
@"exception", e)];
} else if ([e isKindOfClass: [OFInvalidServerReplyException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine:
OF_LOCALIZED(@"download_failed_invalid_server_reply",
@"%[prog]: Failed to download <%[url]>!\n"
@" Invalid server reply!",
@"prog", [OFApplication programName],
@"url", [[request URL] string])];
} else if ([e isKindOfClass: [OFUnsupportedProtocolException class]]) {
if (!_quiet)
[of_stdout writeString: @"\n"];
[of_stderr writeLine: OF_LOCALIZED(@"no_ssl_library",
@"%[prog]: No TLS library loaded!\n"
@" In order to download via https, you need to preload an "
@"TLS library for ObjFW\n"
@" such as ObjOpenSSL!",
@"prog", [OFApplication programName])];
} else if ([e isKindOfClass: [OFReadOrWriteFailedException class]]) {
OFString *error = OF_LOCALIZED(
@"download_failed_read_or_write_failed_any",
@"Read or write failed");
if (!_quiet)
[of_stdout writeString: @"\n"];
if ([e isKindOfClass: [OFReadFailedException class]])
error = OF_LOCALIZED(
@"download_failed_read_or_write_failed_read",
@"Read failed");
else if ([e isKindOfClass: [OFWriteFailedException class]])
error = OF_LOCALIZED(
@"download_failed_read_or_write_failed_write",
@"Write failed");
[of_stderr writeLine:
OF_LOCALIZED(@"download_failed_read_or_write_failed",
@"%[prog]: Failed to download <%[url]>!\n"
@" %[error]: %[exception]",
@"prog", [OFApplication programName],
@"url", [[request URL] string],
@"error", error,
@"exception", e)];
} else if ([e isKindOfClass: [OFHTTPRequestFailedException class]]) {
if (!_quiet)
[of_stdout writeFormat: @" ➜ %d\n",
[[e response] statusCode]];
[of_stderr writeLine: OF_LOCALIZED(@"download_failed",
@"%[prog]: Failed to download <%[url]>!",
@"prog", [OFApplication programName],
@"url", [[request URL] string])];
} else
@throw e;
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
- (bool)stream: (OFHTTPResponse *)response
didReadIntoBuffer: (void *)buffer
length: (size_t)length
context: (id)context
exception: (OFException *)e
{
if (e != nil) {
OFString *URL;
[_progressBar stop];
[_progressBar draw];
[_progressBar release];
_progressBar = nil;
if (!_quiet)
[of_stdout writeString: @"\n Error!\n"];
URL = [_URLs objectAtIndex: _URLIndex - 1];
[of_stderr writeLine:
OF_LOCALIZED(@"download_failed_exception",
@"%[prog]: Failed to download <%[url]>: %[exception]",
@"prog", [OFApplication programName],
@"url", URL,
@"exception", e)];
_errorCode = 1;
goto next;
}
_received += length;
[_output writeBuffer: buffer
length: length];
[_progressBar setReceived: _received];
if ([response isAtEndOfStream] ||
(_length >= 0 && _received >= _length)) {
[_progressBar stop];
[_progressBar draw];
[_progressBar release];
_progressBar = nil;
if (!_quiet) {
[of_stdout writeString: @"\n "];
[of_stdout writeLine:
OF_LOCALIZED(@"download_done", @"Done!")];
}
goto next;
}
return true;
next:
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
return false;
}
- (void)client: (OFHTTPClient *)client
didPerformRequest: (OFHTTPRequest *)request
response: (OFHTTPResponse *)response
context: (id)context
{
OFDictionary OF_GENERIC(OFString *, OFString *) *headers;
OFString *lengthString, *type;
if ([context isEqual: @"detectFileName"]) {
_currentFileName = [fileNameFromContentDisposition(
[[response headers] objectForKey: @"Content-Disposition"])
copy];
_detectedFileName = true;
if (!_quiet)
[of_stdout writeFormat: @" ➜ %d\n",
[response statusCode]];
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
return;
}
if (!_quiet)
[of_stdout writeFormat: @" ➜ %d\n", [response statusCode]];
headers = [response headers];
lengthString = [headers objectForKey: @"Content-Length"];
type = [headers objectForKey: @"Content-Type"];
if (lengthString != nil)
_length = [lengthString decimalValue];
if (!_quiet) {
if (type == nil)
type = OF_LOCALIZED(@"type_unknown", @"unknown");
if (_length >= 0) {
if (_resumedFrom + _length >= GIBIBYTE) {
lengthString = [OFString stringWithFormat:
@"%,.2f",
(float)(_resumedFrom + _length) / GIBIBYTE];
lengthString = OF_LOCALIZED(@"size_gib",
@"%[num] GiB",
@"num", lengthString);
} else if (_resumedFrom + _length >= MEBIBYTE) {
lengthString = [OFString stringWithFormat:
@"%,.2f",
(float)(_resumedFrom + _length) / MEBIBYTE];
lengthString = OF_LOCALIZED(@"size_mib",
@"%[num] MiB",
@"num", lengthString);
} else if (_resumedFrom + _length >= KIBIBYTE) {
lengthString = [OFString stringWithFormat:
@"%,.2f",
(float)(_resumedFrom + _length) / KIBIBYTE];
lengthString = OF_LOCALIZED(@"size_kib",
@"%[num] KiB",
@"num", lengthString);
} else {
lengthString = [OFString stringWithFormat:
@"%jd", _resumedFrom + _length];
lengthString = OF_LOCALIZED(@"size_bytes",
@"%[num] bytes",
@"num", lengthString);
}
} else
lengthString =
OF_LOCALIZED(@"size_unknown", @"unknown");
if (_verbose) {
void *pool = objc_autoreleasePoolPush();
OFDictionary OF_GENERIC(OFString *, OFString *)
*responseHeaders = [response headers];
OFEnumerator *keyEnumerator =
[responseHeaders keyEnumerator];
OFEnumerator *objectEnumerator =
[responseHeaders objectEnumerator];
OFString *key, *object;
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(
@"info_name_unaligned",
@"Name: %[name]",
@"name", _currentFileName)];
while ((key = [keyEnumerator nextObject]) != nil &&
(object = [objectEnumerator nextObject]) != nil)
[of_stdout writeFormat: @" %@: %@\n",
key, object];
objc_autoreleasePoolPop(pool);
} else {
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(@"info_name",
@"Name: %[name]",
@"name", _currentFileName)];
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(@"info_type",
@"Type: %[type]",
@"type", type)];
[of_stdout writeString: @" "];
[of_stdout writeLine: OF_LOCALIZED(@"info_size",
@"Size: %[size]",
@"size", lengthString)];
}
}
if ([_outputPath isEqual: @"-"])
_output = of_stdout;
else {
if (!_continue && !_force && [[OFFileManager defaultManager]
fileExistsAtPath: _currentFileName]) {
[of_stderr writeLine:
OF_LOCALIZED(@"output_already_exists",
@"%[prog]: File %[filename] already exists!",
@"prog", [OFApplication programName],
@"filename", _currentFileName)];
_errorCode = 1;
goto next;
}
@try {
OFString *mode =
([response statusCode] == 206 ? @"a" : @"w");
_output = [[OFFile alloc] initWithPath: _currentFileName
mode: mode];
} @catch (OFOpenItemFailedException *e) {
[of_stderr writeLine:
OF_LOCALIZED(@"failed_to_open_output",
@"%[prog]: Failed to open file %[filename]: "
@"%[exception]",
@"prog", [OFApplication programName],
@"filename", _currentFileName,
@"exception", e)];
_errorCode = 1;
goto next;
}
}
if (!_quiet) {
_progressBar = [[ProgressBar alloc]
initWithLength: _length
resumedFrom: _resumedFrom];
[_progressBar setReceived: _received];
[_progressBar draw];
}
[_currentFileName release];
_currentFileName = nil;
[response asyncReadIntoBuffer: _buffer
length: [OFSystemInfo pageSize]
target: self
selector: @selector(stream:didReadIntoBuffer:
length:context:exception:)
context: nil];
return;
next:
[_currentFileName release];
_currentFileName = nil;
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
- (void)downloadNextURL
{
OFString *URLString = nil;
OFURL *URL;
OFMutableDictionary *clientHeaders;
OFHTTPRequest *request;
_length = -1;
_received = _resumedFrom = 0;
if (_output != of_stdout)
[_output release];
_output = nil;
if (_URLIndex >= [_URLs count])
[OFApplication terminateWithStatus: _errorCode];
@try {
URLString = [_URLs objectAtIndex: _URLIndex++];
URL = [OFURL URLWithString: URLString];
} @catch (OFInvalidFormatException *e) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_url",
@"%[prog]: Invalid URL: <%[url]>!",
@"prog", [OFApplication programName],
@"url", URLString)];
_errorCode = 1;
goto next;
}
if (![[URL scheme] isEqual: @"http"] &&
![[URL scheme] isEqual: @"https"]) {
[of_stderr writeLine: OF_LOCALIZED(@"invalid_scheme",
@"%[prog]: Invalid scheme: <%[url]>!",
@"prog", [OFApplication programName],
@"url", URLString)];
_errorCode = 1;
goto next;
}
clientHeaders = [[_clientHeaders mutableCopy] autorelease];
if (_detectFileName && !_detectedFileName) {
/* Handle this URL on the next -[downloadNextURL] call */
_URLIndex--;
if (!_quiet)
[of_stdout writeFormat: @"⠒ %@", [URL string]];
request = [OFHTTPRequest requestWithURL: URL];
[request setHeaders: clientHeaders];
[request setMethod: OF_HTTP_REQUEST_METHOD_HEAD];
[_HTTPClient asyncPerformRequest: request
context: @"detectFileName"];
return;
}
_detectedFileName = false;
if (!_quiet)
[of_stdout writeFormat: @"⇣ %@", [URL string]];
if (_outputPath != nil) {
[_currentFileName release];
_currentFileName = [_outputPath copy];
}
if (_currentFileName == nil)
_currentFileName = [[[URL path] lastPathComponent] copy];
if (_continue) {
@try {
uintmax_t size = [[[OFFileManager defaultManager]
attributesOfItemAtPath: _currentFileName] fileSize];
OFString *range;
if (size > INTMAX_MAX)
@throw [OFOutOfRangeException exception];
_resumedFrom = (intmax_t)size;
range = [OFString stringWithFormat: @"bytes=%jd-",
_resumedFrom];
[clientHeaders setObject: range
forKey: @"Range"];
} @catch (OFRetrieveItemAttributesFailedException *e) {
}
}
request = [OFHTTPRequest requestWithURL: URL];
[request setHeaders: clientHeaders];
[request setMethod: _method];
[request setBody: _body];
[_HTTPClient asyncPerformRequest: request
context: nil];
return;
next:
[self performSelector: @selector(downloadNextURL)
afterDelay: 0];
}
@end