Function at 0x4780d0
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, 0xffffffc0
push ebx
push esi
push edi
xor ebx, ebx
mov dword [ebp - 0x40], ebx
mov dword [ebp - 0x3c], ebx
mov dword [ebp - 0x38], ebx
mov dword [ebp - 0x34], ebx
mov dword [ebp - 0x30], 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 0x478848
push dword fs:[eax]
mov dword fs:[eax], esp
xor eax, eax
mov dword [ebp - 0xc], eax
lea eax, [esi + 0x48]
call fcn.00404870
mov dword [esi + 0x54], 0x3e7
mov dword [esi + 0x58], 0x3e7
mov dword [esi + 0x50], 0xffffffff
cmp dword [esi + 0x40], 0
je 0x478140
mov edx, dword [esi + 0x40]
mov eax, dword [esi + 0x10]
call fcn.0046d880
lea eax, [esi + 0x40]
call fcn.00404870
mov edx, edi
mov eax, dword [esi + 0x10]
call fcn.0046d880
test al, al
je 0x478817
mov edi, dword [esi + 0x10]
mov eax, dword [edi + 8]
mov edx, dword [edi + 0x1c]
call fcn.00404c8c
jne 0x478170
mov ax, word [edi + 0xc]
cmp ax, word [edi + 0xe]
je 0x478251
mov eax, esi
call fcn.00478c2c
push 0
push 0
push 0
push 0
mov eax, dword [esi + 0x2c]
call fcn.00404d40
push eax
call sub.wininet.dll_InternetOpenA
mov edi, eax
mov dword [esi + 0x18], edi
test edi, edi
jne 0x4781a2
mov dword [esi + 0x58], 0x37a
jmp 0x478783
push 0x477248
mov eax, dword [esi + 0x18]
push eax
call sub.wininet.dll_InternetSetStatusCallback
cmp byte [esi + 0x78], 0
je 0x4781fa
mov eax, 0x477248
test eax, eax
jns 0x4781c4
call fcn.00403a58
push eax
push 0
push 3
mov edi, dword [esi + 0x10]
mov eax, dword [edi + 0x14]
call fcn.00404d40
push eax
mov eax, dword [edi + 0x10]
call fcn.00404d40
push eax
mov ax, word [edi + 0xc]
push eax
mov eax, dword [edi + 8]
call fcn.00404d40
push eax
mov eax, dword [esi + 0x18]
push eax
call sub.wininet.dll_InternetConnectA
mov dword [esi + 0x1c], eax
jmp 0x47823f
mov eax, 0x477248
test eax, eax
jns 0x478208
call fcn.00403a58
push eax
push 0
push 3
mov eax, dword [esi + 0x80]
call fcn.00404d40
push eax
mov eax, dword [esi + 0x7c]
call fcn.00404d40
push eax
mov edi, dword [esi + 0x10]
mov ax, word [edi + 0xc]
push eax
mov eax, dword [edi + 8]
call fcn.00404d40
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 0x478251
mov dword [esi + 0x58], 0x384
jmp 0x478783
imul eax, dword [esi + 0x4c], 0x3e8
jno 0x47825f
call fcn.00403a60
test eax, eax
jns 0x478268
call fcn.00403a58
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 0x4782b5
lea eax, [ebp - 0x10]
mov edx, 0x478864
call fcn.00404908
jmp 0x4782d7
cmp dword [ebp - 8], 0
jne 0x4782ca
lea eax, [ebp - 0x10]
mov edx, 0x478874
call fcn.00404908
jmp 0x4782d7
lea eax, [ebp - 0x10]
mov edx, 0x478864
call fcn.00404908
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 4]
mov edx, 0x478880
call fcn.00404c8c
jne 0x4782f2
mov dword [ebp - 0x2c], 0x80f000
jmp 0x4782f7
xor eax, eax
mov dword [ebp - 0x2c], eax
or dword [ebp - 0x2c], 0x80000000
cmp dword [esi + 8], 0
je 0x47830b
or dword [ebp - 0x2c], 0x80000
cmp byte [esi + 0x24], 0
jne 0x478318
or dword [ebp - 0x2c], 0x4000000
cmp byte [esi + 4], 0
je 0x478325
or dword [ebp - 0x2c], 0x400000
cmp byte [esi + 5], 0
jne 0x478332
or dword [ebp - 0x2c], 0x200000
mov edi, dword [esi + 0x84]
sub edi, 1
jno 0x478342
call fcn.00403a60
mov eax, 0x477248
test eax, eax
jns 0x478350
call fcn.00403a58
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.00404d40
push eax
mov eax, dword [esi + 0x30]
call fcn.00404d40
push eax
mov eax, dword [esi + 0x10]
mov eax, dword [eax + 0x18]
call fcn.00404d40
push eax
mov eax, dword [ebp - 0x10]
call fcn.00404d40
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 0x4783a1
mov dword [esi + 0x58], 0x38e
jmp 0x47844f
lea edx, [ebp - 0x30]
mov eax, dword [esi + 0x20]
call fcn.00477230
mov edx, dword [ebp - 0x30]
mov eax, dword [0x4aa12c]
call fcn.00477070
test eax, eax
jne 0x4783d7
lea edx, [ebp - 0x34]
mov eax, dword [esi + 0x20]
call fcn.00477230
mov edx, dword [ebp - 0x34]
mov ecx, esi
mov eax, dword [0x4aa12c]
call fcn.00476f44
mov edx, dword [esi + 0x20]
mov eax, esi
call fcn.00478f7c
mov eax, dword [ebp - 0x10]
mov edx, 0x478874
call fcn.00404c8c
jne 0x478409
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 0x478437
mov eax, dword [ebp - 8]
call fcn.00404b40
test eax, eax
jns 0x47841a
call fcn.00403a58
push eax
mov eax, dword [ebp - 8]
call fcn.00404d40
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 edi, 1
jl 0x47844f
test bl, bl
jne 0x478447
push 0x64
call sub.kernel32.dll_Sleep_1
test bl, bl
je 0x478338
test bl, bl
jne 0x47845f
mov dword [esi + 0x58], 0x398
jmp 0x478783
mov edx, dword [esi + 0x20]
mov eax, esi
call fcn.00478cd4
cmp dword [esi + 8], 0
je 0x478483
lea edx, [ebp - 0x38]
mov eax, esi
call fcn.00478cc0
mov edx, dword [ebp - 0x38]
mov eax, esi
call fcn.00478dc4
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 0x4784e7
call sub.kernel32.dll_GetLastError_1
cmp eax, 0x7a
jne 0x4784e7
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 0x4784f3
call fcn.00403a58
mov dword [esi + 0x54], eax
test bl, bl
je 0x47850c
cmp dword [ebp - 0x14], 0xc8
jb 0x47850c
cmp dword [ebp - 0x14], 0x12b
jbe 0x478518
mov dword [esi + 0x58], 0x3a2
jmp 0x478783
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 0x478585
call sub.kernel32.dll_GetLastError_1
cmp eax, 0x7a
jne 0x478585
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 0x478582
call fcn.00403a58
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 [0x47809c]
call fcn.00405ee4
add esp, 4
cmp dword [ebp + 0xc], 0
je 0x4785de
push 0
push 0x20
push 2
push 0
push 0
push 0x40000000
mov eax, dword [ebp + 0xc]
call fcn.00404d40
push eax
call sub.kernel32.dll_CreateFileA_1
mov dword [ebp - 0x20], eax
cmp dword [ebp - 0x20], 0xffffffff
jne 0x4785de
mov dword [esi + 0x58], 0x3ac
jmp 0x478783
lea eax, [esi + 0x48]
call fcn.00404870
xor eax, eax
mov dword [ebp - 0x28], eax
mov eax, dword [ebp - 4]
call fcn.00405d28
mov edx, eax
xor eax, eax
mov ecx, dword [ebp - 4]
test ecx, ecx
je 0x478603
cmp eax, dword [ecx - 4]
jb 0x478608
call fcn.00403a58
lea eax, [ecx + eax]
xor ecx, ecx
call fcn.004032bc
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 0x47863d
mov dword [esi + 0x58], 0x3b6
jmp 0x47872f
cmp dword [ebp - 0x1c], 0
jne 0x47864f
mov dword [esi + 0x58], 0x3b7
jmp 0x47872f
lea eax, [ebp - 0x3c]
push eax
mov ecx, dword [ebp - 0x1c]
mov edx, 1
mov eax, dword [ebp - 4]
call fcn.00404da0
mov edx, dword [ebp - 0x3c]
lea eax, [esi + 0x48]
call fcn.00404b48
cmp dword [ebp + 0xc], 0
je 0x4786dd
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 0x47868c
cmp eax, dword [edx - 4]
jb 0x478691
call fcn.00403a58
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 0x4786ab
call fcn.00403a60
cmp dword [esi + 0x5c], 0
je 0x4786bd
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 0x4785eb
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 0x4785eb
cmp dword [esi + 0x5c], 0
je 0x4786ff
mov eax, dword [esi + 0x48]
call fcn.00404b40
mov edx, eax
test edx, edx
jns 0x4786f6
call fcn.00403a58
mov ecx, dword [ebp - 0x14]
mov eax, dword [ebp - 0x1c]
call dword [esi + 0x5c]
cmp word [esi + 0x62], 0
je 0x4785eb
mov eax, dword [ebp - 0x14]
push eax
mov eax, dword [esi + 0x48]
call fcn.00404b40
mov ecx, eax
test ecx, ecx
jns 0x478721
call fcn.00403a58
mov edx, dword [ebp - 0x1c]
mov eax, dword [esi + 0x64]
call dword [esi + 0x60]
jmp 0x4785eb
cmp dword [ebp + 0xc], 0
je 0x47873e
mov eax, dword [ebp - 0x20]
push eax
call sub.kernel32.dll_CloseHandle_1
cmp dword [ebp - 0x14], 0
jbe 0x47876e
cmp dword [ebp + 0xc], 0
jne 0x47875f
mov eax, dword [esi + 0x48]
call fcn.00404b40
test eax, eax
jle 0x478775
mov dword [ebp - 0xc], 0xffffffff
jmp 0x478775
cmp dword [ebp - 0x28], 0
jbe 0x478775
mov dword [ebp - 0xc], 0xffffffff
jmp 0x478775
mov dword [ebp - 0xc], 0xffffffff
cmp dword [esi + 0x58], 0x3b7
jne 0x478783
xor eax, eax
mov dword [esi + 0x58], eax
mov eax, dword [ebp - 4]
call fcn.00405d28
test eax, eax
jle 0x4787b6
mov eax, dword [ebp - 4]
call fcn.00405d28
mov edx, eax
xor eax, eax
mov ecx, dword [ebp - 4]
test ecx, ecx
je 0x4787a7
cmp eax, dword [ecx - 4]
jb 0x4787ac
call fcn.00403a58
lea eax, [ecx + eax]
xor ecx, ecx
call fcn.004032bc
push 0
lea eax, [ebp - 4]
mov ecx, 1
mov edx, dword [0x47809c]
call fcn.00405ee4
add esp, 4
lea edx, [ebp - 0x40]
mov eax, dword [esi + 0x20]
call fcn.00477230
mov edx, dword [ebp - 0x40]
mov eax, dword [0x4aa12c]
call fcn.004770dc
mov eax, dword [esi + 0x20]
push eax
call sub.wininet.dll_InternetCloseHandle
cmp dword [ebp - 0xc], 0
je 0x478817
cmp dword [esi + 0x68], 0
je 0x478804
lea edx, [esi + 0x48]
mov eax, dword [esi + 0x48]
call dword [esi + 0x68]
cmp word [esi + 0x72], 0
je 0x478817
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 0x47884f
lea eax, [ebp - 0x40]
mov edx, 5
call fcn.00404894
lea eax, [ebp - 0x10]
call fcn.00404870
lea eax, [ebp - 4]
mov edx, dword [0x47809c]
call fcn.00405ef0
ret