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fs.mitm: implement layered html redirection (closes #814)

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Michael Scire 2020-02-25 16:44:36 -08:00
parent 8da705d40b
commit dc1404061c
7 changed files with 343 additions and 20 deletions
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21
libraries/libstratosphere/include/stratosphere/fs/fsa/fs_ifile.hpp
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@ -16,6 +16,7 @@
#pragma once
#include "../fs_common.hpp"
#include "../fs_file.hpp"
#include "../fs_filesystem.hpp"
#include "../fs_operate_range.hpp"
namespace ams::fs::fsa {
@ -82,7 +83,25 @@ namespace ams::fs::fsa {
/* TODO: This is a hack to allow the mitm API to work. Find a better way? */
virtual sf::cmif::DomainObjectId GetDomainObjectId() const = 0;
protected:
/* ...? */
Result DryRead(size_t *out, s64 offset, size_t size, const fs::ReadOption &option, OpenMode open_mode) {
/* Check that we can read. */
R_UNLESS((open_mode & OpenMode_Read) != 0, fs::ResultInvalidOperationForOpenMode());
/* Get the file size, and validate our offset. */
s64 file_size = 0;
R_TRY(this->GetSize(&file_size));
R_UNLESS(offset <= file_size, fs::ResultOutOfRange());
*out = static_cast<size_t>(std::min(file_size - offset, static_cast<s64>(size)));
return ResultSuccess();
}
Result DrySetSize(s64 size, OpenMode open_mode) {
/* Check that we can write. */
R_UNLESS((open_mode & OpenMode_Write) != 0, fs::ResultInvalidOperationForOpenMode());
return ResultSuccess();
}
private:
virtual Result ReadImpl(size_t *out, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) = 0;
virtual Result GetSizeImpl(s64 *out) = 0;