Function at 0x49c570
Capabilities:
Check http status code
Connect to http server
Create http request
Download and write a file
Get http content length
Read data from internet
Receive and write data from server to client
Receive data
Send data
Send http request
Write file on windows

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffffbc
push ebx
push esi
push edi
xor ebx, ebx
mov dword [ebp - 0x44], ebx
mov dword [ebp - 0x40], ebx
mov dword [ebp - 0x3c], ebx
mov dword [ebp - 0x38], ebx
mov dword [ebp - 0x34], ebx
mov dword [ebp - 0x10], ebx
mov dword [ebp - 4], ebx
mov dword [ebp - 8], ecx
mov edi, edx
mov esi, eax
xor eax, eax
push ebp
push 0x49cd02
push dword fs:[eax]
mov dword fs:[eax], esp
xor eax, eax
mov dword [ebp - 0xc], eax
lea eax, [esi + 0x48]
call fcn.00404c34
mov dword [esi + 0x54], 0x3e7
mov dword [esi + 0x58], 0x3e7
mov dword [esi + 0x50], 0xffffffff
cmp dword [esi + 0x40], 0
je 0x49c5e0
mov edx, dword [esi + 0x40]
mov eax, dword [esi + 0x10]
call fcn.00497914
lea eax, [esi + 0x40]
call fcn.00404c34
mov edx, edi
mov eax, dword [esi + 0x10]
call fcn.00497914
test al, al
je 0x49ccd1
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 8]
mov edx, dword [esi + 0x10]
mov edx, dword [edx + 0x1c]
call fcn.00405050
jne 0x49c619
mov eax, dword [esi + 0x10]
mov ax, word [eax + 0xc]
mov edx, dword [esi + 0x10]
cmp ax, word [edx + 0xe]
je 0x49c706
mov eax, esi
call fcn.0049d0e8
push 0
push 0
push 0
push 0
mov eax, dword [esi + 0x2c]
call fcn.00405104
push eax
call sub.wininet.dll_InternetOpenA
mov dword [esi + 0x18], eax
cmp dword [esi + 0x18], 0
jne 0x49c64b
mov dword [esi + 0x58], 0x37a
jmp 0x49cc3d
push 0x49b6e8
mov eax, dword [esi + 0x18]
push eax
call sub.wininet.dll_InternetSetStatusCallback
cmp byte [esi + 0x78], 0
je 0x49c6ac
mov eax, 0x49b6e8
test eax, eax
jns 0x49c66d
call fcn.00403ddc
push eax
push 0
push 3
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 0x14]
call fcn.00405104
push eax
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 0x10]
call fcn.00405104
push eax
mov eax, dword [esi + 0x10]
mov ax, word [eax + 0xc]
push eax
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 8]
call fcn.00405104
push eax
mov eax, dword [esi + 0x18]
push eax
call sub.wininet.dll_InternetConnectA
mov dword [esi + 0x1c], eax
jmp 0x49c6f4
mov eax, 0x49b6e8
test eax, eax
jns 0x49c6ba
call fcn.00403ddc
push eax
push 0
push 3
mov eax, dword [esi + 0x80]
call fcn.00405104
push eax
mov eax, dword [esi + 0x7c]
call fcn.00405104
push eax
mov eax, dword [esi + 0x10]
mov ax, word [eax + 0xc]
push eax
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 8]
call fcn.00405104
push eax
mov eax, dword [esi + 0x18]
push eax
call sub.wininet.dll_InternetConnectA
mov dword [esi + 0x1c], eax
cmp dword [esi + 0x1c], 0
jne 0x49c706
mov dword [esi + 0x58], 0x384
jmp 0x49cc3d
imul eax, dword [esi + 0x4c], 0x3e8
jno 0x49c714
call fcn.00403de4
test eax, eax
jns 0x49c71d
call fcn.00403ddc
mov dword [ebp - 0x14], eax
lea eax, [ebp - 0x18]
push eax
lea eax, [ebp - 0x14]
push eax
push 2
mov eax, dword [esi + 0x1c]
push eax
call sub.wininet.dll_InternetQueryOptionA
push 4
lea eax, [ebp - 0x14]
push eax
push 2
mov eax, dword [esi + 0x1c]
push eax
call sub.wininet.dll_InternetSetOptionA
push 4
lea eax, [ebp - 0x14]
push eax
push 6
mov eax, dword [esi + 0x1c]
push eax
call sub.wininet.dll_InternetSetOptionA
cmp byte [esi + 0x14], 0
je 0x49c76a
lea eax, [ebp - 0x10]
mov edx, 0x49cd20
call fcn.00404ccc
jmp 0x49c78c
cmp dword [ebp - 8], 0
jne 0x49c77f
lea eax, [ebp - 0x10]
mov edx, 0x49cd30
call fcn.00404ccc
jmp 0x49c78c
lea eax, [ebp - 0x10]
mov edx, 0x49cd20
call fcn.00404ccc
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 4]
mov edx, 0x49cd3c
call fcn.00405050
jne 0x49c7a7
mov dword [ebp - 0x2c], 0x80f000
jmp 0x49c7ac
xor eax, eax
mov dword [ebp - 0x2c], eax
or dword [ebp - 0x2c], 0x80000000
cmp dword [esi + 8], 0
je 0x49c7c0
or dword [ebp - 0x2c], 0x80000
cmp byte [esi + 0x24], 0
jne 0x49c7cd
or dword [ebp - 0x2c], 0x4000000
cmp byte [esi + 4], 0
je 0x49c7da
or dword [ebp - 0x2c], 0x400000
cmp byte [esi + 5], 0
jne 0x49c7e7
or dword [ebp - 0x2c], 0x200000
mov eax, dword [esi + 0x84]
mov dword [ebp - 0x30], eax
sub dword [ebp - 0x30], 1
jno 0x49c7fb
call fcn.00403de4
mov eax, 0x49b6e8
test eax, eax
jns 0x49c809
call fcn.00403ddc
push eax
mov eax, dword [ebp - 0x2c]
push eax
lea eax, [esi + 0x28]
push eax
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 0x20]
call fcn.00405104
push eax
mov eax, dword [esi + 0x30]
call fcn.00405104
push eax
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 0x18]
call fcn.00405104
push eax
mov eax, dword [ebp - 0x10]
call fcn.00405104
push eax
mov eax, dword [esi + 0x1c]
push eax
call sub.wininet.dll_HttpOpenRequestA
mov dword [esi + 0x20], eax
cmp dword [esi + 0x20], 0
jne 0x49c85a
mov dword [esi + 0x58], 0x38e
jmp 0x49c909
lea edx, [ebp - 0x34]
mov eax, dword [esi + 0x20]
call fcn.0049b6d0
mov edx, dword [ebp - 0x34]
mov eax, dword [0x4a8dd4]
call fcn.0049b510
test eax, eax
jne 0x49c890
lea edx, [ebp - 0x38]
mov eax, dword [esi + 0x20]
call fcn.0049b6d0
mov edx, dword [ebp - 0x38]
mov ecx, esi
mov eax, dword [0x4a8dd4]
call fcn.0049b3e4
mov edx, dword [esi + 0x20]
mov eax, esi
call fcn.0049d440
mov eax, dword [ebp - 0x10]
mov edx, 0x49cd30
call fcn.00405050
jne 0x49c8c2
push 0
push 0
push 0
push 0
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_HttpSendRequestA
cmp eax, 1
sbb ebx, ebx
inc ebx
jmp 0x49c8f0
mov eax, dword [ebp - 8]
call fcn.00404f04
test eax, eax
jns 0x49c8d3
call fcn.00403ddc
push eax
mov eax, dword [ebp - 8]
call fcn.00405104
push eax
push 0
push 0
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_HttpSendRequestA
cmp eax, 1
sbb ebx, ebx
inc ebx
cmp dword [ebp - 0x30], 1
jl 0x49c909
test bl, bl
jne 0x49c901
push 0x64
call sub.kernel32.dll_Sleep_1
test bl, bl
je 0x49c7f0
test bl, bl
jne 0x49c919
mov dword [esi + 0x58], 0x398
jmp 0x49cc3d
mov edx, dword [esi + 0x20]
mov eax, esi
call fcn.0049d190
cmp dword [esi + 8], 0
je 0x49c93d
lea edx, [ebp - 0x3c]
mov eax, esi
call fcn.0049d17c
mov edx, dword [ebp - 0x3c]
mov eax, esi
call fcn.0049d288
xor eax, eax
mov dword [ebp - 0x14], eax
xor eax, eax
mov dword [ebp - 0x18], eax
xor eax, eax
mov dword [ebp - 0x1c], eax
lea eax, [ebp - 0x1c]
push eax
lea eax, [ebp - 0x18]
push eax
lea eax, [ebp - 0x14]
push eax
push 0x20000013
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_HttpQueryInfoA
cmp eax, 1
sbb ebx, ebx
inc ebx
test bl, bl
jne 0x49c9a1
call sub.kernel32.dll_GetLastError_1
cmp eax, 0x7a
jne 0x49c9a1
mov dword [ebp - 0x18], 4
lea eax, [ebp - 0x1c]
push eax
lea eax, [ebp - 0x18]
push eax
lea eax, [ebp - 0x14]
push eax
push 0x20000013
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_HttpQueryInfoA
cmp eax, 1
sbb ebx, ebx
inc ebx
mov eax, dword [ebp - 0x14]
test eax, eax
jns 0x49c9ad
call fcn.00403ddc
mov dword [esi + 0x54], eax
test bl, bl
je 0x49c9c6
cmp dword [ebp - 0x14], 0xc8
jb 0x49c9c6
cmp dword [ebp - 0x14], 0x12b
jbe 0x49c9d2
mov dword [esi + 0x58], 0x3a2
jmp 0x49cc3d
xor eax, eax
mov dword [ebp - 0x14], eax
xor eax, eax
mov dword [ebp - 0x18], eax
xor eax, eax
mov dword [ebp - 0x1c], eax
lea eax, [ebp - 0x1c]
push eax
lea eax, [ebp - 0x18]
push eax
lea eax, [ebp - 0x14]
push eax
push 0x20000005
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_HttpQueryInfoA
cmp eax, 1
sbb ebx, ebx
inc ebx
test bl, bl
jne 0x49ca3f
call sub.kernel32.dll_GetLastError_1
cmp eax, 0x7a
jne 0x49ca3f
mov dword [ebp - 0x18], 4
lea eax, [ebp - 0x1c]
push eax
lea eax, [ebp - 0x18]
push eax
lea eax, [ebp - 0x14]
push eax
push 0x20000005
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_HttpQueryInfoA
mov eax, dword [ebp - 0x14]
test eax, eax
jns 0x49ca3c
call fcn.00403ddc
mov dword [esi + 0x50], eax
mov dword [ebp - 0x18], 0x1000
mov eax, dword [ebp - 0x18]
push eax
lea eax, [ebp - 4]
mov ecx, 1
mov edx, dword [0x49c53c]
call fcn.00406280
add esp, 4
cmp dword [ebp + 0xc], 0
je 0x49ca98
push 0
push 0x20
push 2
push 0
push 0
push 0x40000000
mov eax, dword [ebp + 0xc]
call fcn.00405104
push eax
call sub.kernel32.dll_CreateFileA_1
mov dword [ebp - 0x20], eax
cmp dword [ebp - 0x20], 0xffffffff
jne 0x49ca98
mov dword [esi + 0x58], 0x3ac
jmp 0x49cc3d
lea eax, [esi + 0x48]
call fcn.00404c34
xor eax, eax
mov dword [ebp - 0x28], eax
mov eax, dword [ebp - 4]
call fcn.004060a4
mov edx, eax
xor eax, eax
mov ecx, dword [ebp - 4]
test ecx, ecx
je 0x49cabd
cmp eax, dword [ecx - 4]
jb 0x49cac2
call fcn.00403ddc
lea eax, [ecx + eax]
xor ecx, ecx
call fcn.00403688
lea eax, [ebp - 0x1c]
push eax
mov eax, dword [ebp - 0x18]
push eax
mov eax, dword [ebp - 4]
push eax
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_InternetReadFile
cmp eax, 1
sbb ebx, ebx
inc ebx
test bl, bl
jne 0x49caf7
mov dword [esi + 0x58], 0x3b6
jmp 0x49cbe9
cmp dword [ebp - 0x1c], 0
jne 0x49cb09
mov dword [esi + 0x58], 0x3b7
jmp 0x49cbe9
lea eax, [ebp - 0x40]
push eax
mov ecx, dword [ebp - 0x1c]
mov edx, 1
mov eax, dword [ebp - 4]
call fcn.00405164
mov edx, dword [ebp - 0x40]
lea eax, [esi + 0x48]
call fcn.00404f0c
cmp dword [ebp + 0xc], 0
je 0x49cb97
push 0
lea eax, [ebp - 0x24]
push eax
mov eax, dword [ebp - 0x1c]
push eax
xor eax, eax
mov edx, dword [ebp - 4]
test edx, edx
je 0x49cb46
cmp eax, dword [edx - 4]
jb 0x49cb4b
call fcn.00403ddc
lea eax, [edx + eax]
push eax
mov eax, dword [ebp - 0x20]
push eax
call sub.kernel32.dll_WriteFile_1
mov eax, dword [ebp - 0x24]
add dword [ebp - 0x28], eax
jae 0x49cb65
call fcn.00403de4
cmp dword [esi + 0x5c], 0
je 0x49cb77
mov ecx, dword [ebp - 0x14]
mov edx, dword [ebp - 0x28]
mov eax, dword [ebp - 0x24]
call dword [esi + 0x5c]
cmp word [esi + 0x62], 0
je 0x49caa5
mov eax, dword [ebp - 0x14]
push eax
mov ecx, dword [ebp - 0x28]
mov edx, dword [ebp - 0x24]
mov eax, dword [esi + 0x64]
call dword [esi + 0x60]
jmp 0x49caa5
cmp dword [esi + 0x5c], 0
je 0x49cbb9
mov eax, dword [esi + 0x48]
call fcn.00404f04
mov edx, eax
test edx, edx
jns 0x49cbb0
call fcn.00403ddc
mov ecx, dword [ebp - 0x14]
mov eax, dword [ebp - 0x1c]
call dword [esi + 0x5c]
cmp word [esi + 0x62], 0
je 0x49caa5
mov eax, dword [ebp - 0x14]
push eax
mov eax, dword [esi + 0x48]
call fcn.00404f04
mov ecx, eax
test ecx, ecx
jns 0x49cbdb
call fcn.00403ddc
mov edx, dword [ebp - 0x1c]
mov eax, dword [esi + 0x64]
call dword [esi + 0x60]
jmp 0x49caa5
cmp dword [ebp + 0xc], 0
je 0x49cbf8
mov eax, dword [ebp - 0x20]
push eax
call sub.kernel32.dll_CloseHandle_1
cmp dword [ebp - 0x14], 0
jbe 0x49cc28
cmp dword [ebp + 0xc], 0
jne 0x49cc19
mov eax, dword [esi + 0x48]
call fcn.00404f04
test eax, eax
jle 0x49cc2f
mov dword [ebp - 0xc], 0xffffffff
jmp 0x49cc2f
cmp dword [ebp - 0x28], 0
jbe 0x49cc2f
mov dword [ebp - 0xc], 0xffffffff
jmp 0x49cc2f
mov dword [ebp - 0xc], 0xffffffff
cmp dword [esi + 0x58], 0x3b7
jne 0x49cc3d
xor eax, eax
mov dword [esi + 0x58], eax
mov eax, dword [ebp - 4]
call fcn.004060a4
test eax, eax
jle 0x49cc70
mov eax, dword [ebp - 4]
call fcn.004060a4
mov edx, eax
xor eax, eax
mov ecx, dword [ebp - 4]
test ecx, ecx
je 0x49cc61
cmp eax, dword [ecx - 4]
jb 0x49cc66
call fcn.00403ddc
lea eax, [ecx + eax]
xor ecx, ecx
call fcn.00403688
push 0
lea eax, [ebp - 4]
mov ecx, 1
mov edx, dword [0x49c53c]
call fcn.00406280
add esp, 4
lea edx, [ebp - 0x44]
mov eax, dword [esi + 0x20]
call fcn.0049b6d0
mov edx, dword [ebp - 0x44]
mov eax, dword [0x4a8dd4]
call fcn.0049b57c
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_InternetCloseHandle
cmp dword [ebp - 0xc], 0
je 0x49ccd1
cmp dword [esi + 0x68], 0
je 0x49ccbe
lea edx, [esi + 0x48]
mov eax, dword [esi + 0x48]
call dword [esi + 0x68]
cmp word [esi + 0x72], 0
je 0x49ccd1
lea ecx, [esi + 0x48]
mov edx, dword [esi + 0x48]
mov eax, dword [esi + 0x74]
call dword [esi + 0x70]
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x49cd09
lea eax, [ebp - 0x44]
mov edx, 5
call fcn.00404c58
lea eax, [ebp - 0x10]
call fcn.00404c34
lea eax, [ebp - 4]
mov edx, dword [0x49c53c]
call fcn.0040628c
ret