372 lines
14 KiB
C
372 lines
14 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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#pragma once
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//==============================================================================
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namespace LicenseHelpers
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{
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inline LicenseState::Type licenseTypeForString (const String& licenseString)
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{
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if (licenseString == "juce-pro") return LicenseState::Type::pro;
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if (licenseString == "juce-indie") return LicenseState::Type::indie;
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if (licenseString == "juce-edu") return LicenseState::Type::educational;
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if (licenseString == "juce-personal") return LicenseState::Type::personal;
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jassertfalse; // unknown type
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return LicenseState::Type::none;
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}
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using LicenseVersionAndType = std::pair<int, LicenseState::Type>;
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inline LicenseVersionAndType findBestLicense (std::vector<LicenseVersionAndType>&& licenses)
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{
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if (licenses.size() == 1)
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return licenses[0];
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auto getValueForLicenceType = [] (LicenseState::Type type)
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{
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switch (type)
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{
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case LicenseState::Type::pro: return 4;
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case LicenseState::Type::indie: return 3;
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case LicenseState::Type::educational: return 2;
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case LicenseState::Type::personal: return 1;
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case LicenseState::Type::gpl:
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case LicenseState::Type::none:
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default: return -1;
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}
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};
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std::sort (licenses.begin(), licenses.end(),
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[getValueForLicenceType] (const LicenseVersionAndType& l1, const LicenseVersionAndType& l2)
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{
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if (l1.first > l2.first)
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return true;
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if (l1.first == l2.first)
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return getValueForLicenceType (l1.second) > getValueForLicenceType (l2.second);
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return false;
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});
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auto findFirstLicense = [&licenses] (bool isPaid)
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{
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auto iter = std::find_if (licenses.begin(), licenses.end(),
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[isPaid] (const LicenseVersionAndType& l)
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{
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auto proOrIndie = (l.second == LicenseState::Type::pro || l.second == LicenseState::Type::indie);
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return isPaid ? proOrIndie : ! proOrIndie;
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});
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return iter != licenses.end() ? *iter
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: LicenseVersionAndType();
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};
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auto newestPaid = findFirstLicense (true);
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auto newestFree = findFirstLicense (false);
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if (newestPaid.first >= projucerMajorVersion || newestPaid.first >= newestFree.first)
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return newestPaid;
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return newestFree;
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}
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}
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//==============================================================================
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class LicenseQueryThread
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{
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public:
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enum class ErrorType
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{
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busy,
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cancelled,
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connectionError,
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webResponseError
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};
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using ErrorMessageAndType = std::pair<String, ErrorType>;
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using LicenseQueryCallback = std::function<void (ErrorMessageAndType, LicenseState)>;
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//==============================================================================
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LicenseQueryThread() = default;
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void checkLicenseValidity (const LicenseState& state, LicenseQueryCallback completionCallback)
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{
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if (jobPool.getNumJobs() > 0)
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{
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completionCallback ({ {}, ErrorType::busy }, {});
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return;
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}
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jobPool.addJob ([this, state, completionCallback]
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{
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auto updatedState = state;
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auto result = runTask (std::make_unique<UserLicenseQuery> (state.authToken), updatedState);
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WeakReference<LicenseQueryThread> weakThis (this);
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MessageManager::callAsync ([weakThis, result, updatedState, completionCallback]
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{
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if (weakThis != nullptr)
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completionCallback (result, updatedState);
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});
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});
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}
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void doSignIn (const String& email, const String& password, LicenseQueryCallback completionCallback)
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{
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cancelRunningJobs();
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jobPool.addJob ([this, email, password, completionCallback]
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{
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LicenseState state;
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auto result = runTask (std::make_unique<UserLogin> (email, password), state);
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if (result == ErrorMessageAndType())
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result = runTask (std::make_unique<UserLicenseQuery> (state.authToken), state);
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if (result != ErrorMessageAndType())
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state = {};
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WeakReference<LicenseQueryThread> weakThis (this);
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MessageManager::callAsync ([weakThis, result, state, completionCallback]
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{
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if (weakThis != nullptr)
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completionCallback (result, state);
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});
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});
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}
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void cancelRunningJobs()
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{
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jobPool.removeAllJobs (true, 500);
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}
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private:
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//==============================================================================
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struct AccountEnquiryBase
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{
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virtual ~AccountEnquiryBase() = default;
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virtual bool isPOSTLikeRequest() const = 0;
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virtual String getEndpointURLSuffix() const = 0;
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virtual StringPairArray getParameterNamesAndValues() const = 0;
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virtual String getExtraHeaders() const = 0;
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virtual int getSuccessCode() const = 0;
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virtual String errorCodeToString (int) const = 0;
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virtual bool parseServerResponse (const String&, LicenseState&) = 0;
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};
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struct UserLogin : public AccountEnquiryBase
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{
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UserLogin (const String& e, const String& p)
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: userEmail (e), userPassword (p)
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{
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}
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bool isPOSTLikeRequest() const override { return true; }
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String getEndpointURLSuffix() const override { return "/authenticate/projucer"; }
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int getSuccessCode() const override { return 200; }
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StringPairArray getParameterNamesAndValues() const override
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{
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StringPairArray namesAndValues;
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namesAndValues.set ("email", userEmail);
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namesAndValues.set ("password", userPassword);
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return namesAndValues;
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}
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String getExtraHeaders() const override
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{
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return "Content-Type: application/json";
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}
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String errorCodeToString (int errorCode) const override
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{
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switch (errorCode)
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{
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case 400: return "Please enter your email and password to sign in.";
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case 401: return "Your email and password are incorrect.";
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case 451: return "Access denied.";
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default: return "Something went wrong, please try again.";
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}
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}
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bool parseServerResponse (const String& serverResponse, LicenseState& licenseState) override
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{
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auto json = JSON::parse (serverResponse);
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licenseState.authToken = json.getProperty ("token", {}).toString();
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licenseState.username = json.getProperty ("user", {}).getProperty ("username", {}).toString();
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return (licenseState.authToken.isNotEmpty() && licenseState.username.isNotEmpty());
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}
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String userEmail, userPassword;
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};
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struct UserLicenseQuery : public AccountEnquiryBase
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{
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UserLicenseQuery (const String& authToken)
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: userAuthToken (authToken)
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{
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}
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bool isPOSTLikeRequest() const override { return false; }
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String getEndpointURLSuffix() const override { return "/user/licences/projucer"; }
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int getSuccessCode() const override { return 200; }
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StringPairArray getParameterNamesAndValues() const override
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{
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return {};
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}
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String getExtraHeaders() const override
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{
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return "x-access-token: " + userAuthToken;
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}
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String errorCodeToString (int errorCode) const override
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{
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switch (errorCode)
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{
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case 401: return "User not found or could not be verified.";
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default: return "User licenses info fetch failed (unknown error).";
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}
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}
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bool parseServerResponse (const String& serverResponse, LicenseState& licenseState) override
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{
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auto json = JSON::parse (serverResponse);
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if (auto* licensesJson = json.getArray())
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{
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std::vector<LicenseHelpers::LicenseVersionAndType> licenses;
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for (auto& license : *licensesJson)
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{
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auto version = license.getProperty ("product_version", {}).toString().trim();
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auto type = license.getProperty ("licence_type", {}).toString();
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auto status = license.getProperty ("status", {}).toString();
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if (status == "active" && type.isNotEmpty() && version.isNotEmpty())
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licenses.push_back ({ version.getIntValue(), LicenseHelpers::licenseTypeForString (type) });
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}
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if (! licenses.empty())
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{
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auto bestLicense = LicenseHelpers::findBestLicense (std::move (licenses));
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licenseState.version = bestLicense.first;
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licenseState.type = bestLicense.second;
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}
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return true;
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}
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return false;
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}
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String userAuthToken;
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};
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//==============================================================================
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static String postDataStringAsJSON (const StringPairArray& parameters)
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{
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DynamicObject::Ptr d (new DynamicObject());
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for (auto& key : parameters.getAllKeys())
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d->setProperty (key, parameters[key]);
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return JSON::toString (var (d.get()));
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}
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static ErrorMessageAndType runTask (std::unique_ptr<AccountEnquiryBase> accountEnquiryTask, LicenseState& state)
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{
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const ErrorMessageAndType cancelledError ("Cancelled.", ErrorType::cancelled);
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const String endpointURL ("https://api.juce.com/api/v1");
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URL url (endpointURL + accountEnquiryTask->getEndpointURLSuffix());
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auto isPOST = accountEnquiryTask->isPOSTLikeRequest();
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if (isPOST)
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url = url.withPOSTData (postDataStringAsJSON (accountEnquiryTask->getParameterNamesAndValues()));
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if (ThreadPoolJob::getCurrentThreadPoolJob()->shouldExit())
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return cancelledError;
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int statusCode = 0;
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auto urlStream = url.createInputStream (URL::InputStreamOptions (isPOST ? URL::ParameterHandling::inPostData
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: URL::ParameterHandling::inAddress)
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.withExtraHeaders (accountEnquiryTask->getExtraHeaders())
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.withConnectionTimeoutMs (5000)
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.withStatusCode (&statusCode));
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if (urlStream == nullptr)
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return { "Failed to connect to the web server.", ErrorType::connectionError };
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if (statusCode != accountEnquiryTask->getSuccessCode())
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return { accountEnquiryTask->errorCodeToString (statusCode), ErrorType::webResponseError };
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if (ThreadPoolJob::getCurrentThreadPoolJob()->shouldExit())
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return cancelledError;
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String response;
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for (;;)
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{
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char buffer [8192] = "";
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auto num = urlStream->read (buffer, sizeof (buffer));
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if (ThreadPoolJob::getCurrentThreadPoolJob()->shouldExit())
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return cancelledError;
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if (num <= 0)
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break;
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response += buffer;
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}
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if (ThreadPoolJob::getCurrentThreadPoolJob()->shouldExit())
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return cancelledError;
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if (! accountEnquiryTask->parseServerResponse (response, state))
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return { "Failed to parse server response.", ErrorType::webResponseError };
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return {};
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}
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//==============================================================================
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ThreadPool jobPool { 1 };
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//==============================================================================
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JUCE_DECLARE_WEAK_REFERENCEABLE (LicenseQueryThread)
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LicenseQueryThread)
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};
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