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Add strongly typed ProxySecret class.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // | ||
| // Copyright Aliaksei Levin ([email protected]), Arseny Smirnov ([email protected]) 2014-2019 | ||
| // | ||
| // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
| #include "td/mtproto/ProxySecret.h" | ||
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| #include "td/utils/base64.h" | ||
| #include "td/utils/misc.h" | ||
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| namespace td { | ||
| namespace mtproto { | ||
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| Result<ProxySecret> ProxySecret::from_link(Slice encoded_secret) { | ||
| auto r_decoded = hex_decode(encoded_secret); | ||
| if (r_decoded.is_error()) { | ||
| r_decoded = base64url_decode(encoded_secret); | ||
| } | ||
| if (r_decoded.is_error()) { | ||
| return Status::Error(400, "Wrong proxy secret"); | ||
| } | ||
| return from_binary(r_decoded.ok()); | ||
| } | ||
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| Result<ProxySecret> ProxySecret::from_binary(Slice raw_unchecked_secret) { | ||
| if (raw_unchecked_secret.size() == 16 || | ||
| (raw_unchecked_secret.size() == 17 && static_cast<unsigned char>(raw_unchecked_secret[0]) == 0xdd) || | ||
| (raw_unchecked_secret.size() >= 17 && static_cast<unsigned char>(raw_unchecked_secret[0]) == 0xee)) { | ||
| return from_raw(raw_unchecked_secret); | ||
| } | ||
| if (raw_unchecked_secret.size() < 16) { | ||
| return Status::Error(400, "Wrong proxy secret"); | ||
| } | ||
| return Status::Error(400, "Unsupported proxy secret"); | ||
| } | ||
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| string ProxySecret::get_encoded_secret() const { | ||
| if (emulate_tls()) { | ||
| return base64url_encode(secret_); | ||
| } | ||
| return buffer_to_hex(secret_); | ||
| } | ||
|
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| } // namespace mtproto | ||
| } // namespace td |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| // | ||
| // Copyright Aliaksei Levin ([email protected]), Arseny Smirnov ([email protected]) 2014-2019 | ||
| // | ||
| // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| // | ||
| #pragma once | ||
|
|
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| #include "td/utils/common.h" | ||
| #include "td/utils/Slice.h" | ||
| #include "td/utils/Status.h" | ||
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| namespace td { | ||
| namespace mtproto { | ||
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| class ProxySecret { | ||
| public: | ||
| static Result<ProxySecret> from_link(Slice encoded_secret); | ||
| static Result<ProxySecret> from_binary(Slice raw_unchecked_secret); | ||
| static ProxySecret from_raw(Slice raw_secret) { | ||
| ProxySecret result; | ||
| result.secret_ = raw_secret.str(); | ||
| return result; | ||
| } | ||
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| Slice get_raw_secret() const { | ||
| return secret_; | ||
| } | ||
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| Slice get_proxy_secret() const { | ||
| auto proxy_secret = Slice(secret_).truncate(17); | ||
| if (proxy_secret.size() == 17) { | ||
| proxy_secret.remove_prefix(1); | ||
| } | ||
| return proxy_secret; | ||
| } | ||
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| string get_encoded_secret() const; | ||
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| bool use_random_padding() const { | ||
| return secret_.size() >= 17; | ||
| } | ||
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| bool emulate_tls() const { | ||
| return secret_.size() >= 17 && static_cast<unsigned char>(secret_[0]) == 0xee; | ||
| } | ||
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| string get_domain() const { | ||
| CHECK(emulate_tls()); | ||
| return secret_.substr(17); | ||
| } | ||
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| private: | ||
| friend bool operator==(const ProxySecret &lhs, const ProxySecret &rhs) { | ||
| return lhs.secret_ == rhs.secret_; | ||
| } | ||
| string secret_; | ||
| }; | ||
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| inline bool operator!=(const ProxySecret &lhs, const ProxySecret &rhs) { | ||
| return !(lhs == rhs); | ||
| } | ||
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| } // namespace mtproto | ||
| } // namespace td |
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