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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_AUTOFILL_ASSISTANT_BROWSER_SCRIPT_PRECONDITION_H_
#define COMPONENTS_AUTOFILL_ASSISTANT_BROWSER_SCRIPT_PRECONDITION_H_
#include <map>
#include <memory>
#include <set>
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "components/autofill_assistant/browser/element_precondition.h"
#include "components/autofill_assistant/browser/service.pb.h"
#include "components/autofill_assistant/browser/web/web_controller.h"
namespace re2 {
class RE2;
} // namespace re2
namespace autofill_assistant {
class BatchElementChecker;
class TriggerContext;
// Class represents a set of preconditions for a script to be executed.
class ScriptPrecondition {
public:
// Builds a precondition from its proto representation. Returns nullptr if the
// preconditions are invalid.
//
// Note: The |script_path| paramter is used to allow logging misconfigured
// scripts.
static std::unique_ptr<ScriptPrecondition> FromProto(
const std::string& script_path,
const ScriptPreconditionProto& script_precondition_proto);
ScriptPrecondition(
const google::protobuf::RepeatedPtrField<std::string>& domain_match,
std::vector<std::unique_ptr<re2::RE2>> path_pattern,
const google::protobuf::RepeatedPtrField<ScriptStatusMatchProto>&
status_match,
const google::protobuf::RepeatedPtrField<ScriptParameterMatchProto>&
parameter_match,
const google::protobuf::RepeatedPtrField<ElementReferenceProto>&
element_exists,
const google::protobuf::RepeatedPtrField<FormValueMatchProto>&
form_value_match);
~ScriptPrecondition();
// Check whether the conditions satisfied and return the result through
// |callback|. |batch_checks| must remain valid until the callback is run.
//
// Calling Check() while another check is in progress cancels the previously
// running check.
void Check(const GURL& url,
BatchElementChecker* batch_checks,
const TriggerContext& context,
const std::map<std::string, ScriptStatusProto>& executed_scripts,
base::OnceCallback<void(bool)> callback);
private:
bool MatchDomain(const GURL& url) const;
bool MatchPath(const GURL& url) const;
bool MatchParameters(const TriggerContext& context) const;
bool MatchScriptStatus(
const std::map<std::string, ScriptStatusProto>& executed_scripts) const;
// Domain (exact match) excluding the last '/' character.
std::set<std::string> domain_match_;
// Pattern of the path parts of the URL.
std::vector<std::unique_ptr<re2::RE2>> path_pattern_;
// Condition on parameters, identified by name, as found in the intent.
std::vector<ScriptParameterMatchProto> parameter_match_;
// Conditions regarding the execution status of passed scripts.
std::vector<ScriptStatusMatchProto> status_match_;
ElementPrecondition element_precondition_;
DISALLOW_COPY_AND_ASSIGN(ScriptPrecondition);
};
} // namespace autofill_assistant
#endif // COMPONENTS_AUTOFILL_ASSISTANT_BROWSER_SCRIPT_PRECONDITION_H_
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