| // Copyright 2013 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_CORE_BROWSER_FORM_STRUCTURE_H_ |
| #define COMPONENTS_AUTOFILL_CORE_BROWSER_FORM_STRUCTURE_H_ |
| |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/scoped_vector.h" |
| #include "base/strings/string16.h" |
| #include "components/autofill/core/browser/autofill_field.h" |
| #include "components/autofill/core/browser/autofill_type.h" |
| #include "components/autofill/core/browser/field_types.h" |
| #include "components/autofill/core/common/web_element_descriptor.h" |
| #include "url/gurl.h" |
| |
| enum UploadRequired { |
| UPLOAD_NOT_REQUIRED, |
| UPLOAD_REQUIRED, |
| USE_UPLOAD_RATES |
| }; |
| |
| namespace base { |
| class TimeTicks; |
| } |
| |
| namespace buzz { |
| class XmlElement; |
| } |
| |
| namespace autofill { |
| |
| class AutofillMetrics; |
| |
| struct FormData; |
| struct FormDataPredictions; |
| |
| // FormStructure stores a single HTML form together with the values entered |
| // in the fields along with additional information needed by Autofill. |
| class FormStructure { |
| public: |
| FormStructure(const FormData& form); |
| virtual ~FormStructure(); |
| |
| // Runs several heuristics against the form fields to determine their possible |
| // types. |
| void DetermineHeuristicTypes(const AutofillMetrics& metric_logger); |
| |
| // Encodes the XML upload request from this FormStructure. |
| bool EncodeUploadRequest(const ServerFieldTypeSet& available_field_types, |
| bool form_was_autofilled, |
| std::string* encoded_xml) const; |
| |
| // Encodes a XML block contains autofill field type from this FormStructure. |
| // This XML will be written VLOG only, never be sent to server. It will |
| // help make FieldAssignments and feed back to autofill server as |
| // experiment data. |
| bool EncodeFieldAssignments(const ServerFieldTypeSet& available_field_types, |
| std::string* encoded_xml) const; |
| |
| // Encodes the XML query request for the set of forms. |
| // All fields are returned in one XML. For example, there are three forms, |
| // with 2, 4, and 3 fields. The returned XML would have type info for 9 |
| // fields, first two of which would be for the first form, next 4 for the |
| // second, and the rest is for the third. |
| static bool EncodeQueryRequest(const std::vector<FormStructure*>& forms, |
| std::vector<std::string>* encoded_signatures, |
| std::string* encoded_xml); |
| |
| // Parses the field types from the server query response. |forms| must be the |
| // same as the one passed to EncodeQueryRequest when constructing the query. |
| static void ParseQueryResponse( |
| const std::string& response_xml, |
| const std::vector<FormStructure*>& forms, |
| const AutofillMetrics& metric_logger); |
| |
| // Fills |forms| with the details from the given |form_structures| and their |
| // fields' predicted types. |
| static void GetFieldTypePredictions( |
| const std::vector<FormStructure*>& form_structures, |
| std::vector<FormDataPredictions>* forms); |
| |
| // The unique signature for this form, composed of the target url domain, |
| // the form name, and the form field names in a 64-bit hash. |
| std::string FormSignature() const; |
| |
| // Runs a quick heuristic to rule out forms that are obviously not |
| // auto-fillable, like google/yahoo/msn search, etc. |
| bool IsAutofillable() const; |
| |
| // Resets |autofill_count_| and counts the number of auto-fillable fields. |
| // This is used when we receive server data for form fields. At that time, |
| // we may have more known fields than just the number of fields we matched |
| // heuristically. |
| void UpdateAutofillCount(); |
| |
| // Returns true if this form matches the structural requirements for Autofill. |
| bool ShouldBeParsed() const; |
| |
| // Returns true if we should query the crowdsourcing server to determine this |
| // form's field types. If the form includes author-specified types, this will |
| // return false. |
| bool ShouldBeCrowdsourced() const; |
| |
| // Sets the field types to be those set for |cached_form|. |
| void UpdateFromCache(const FormStructure& cached_form); |
| |
| // Logs quality metrics for |this|, which should be a user-submitted form. |
| // This method should only be called after the possible field types have been |
| // set for each field. |interaction_time| should be a timestamp corresponding |
| // to the user's first interaction with the form. |submission_time| should be |
| // a timestamp corresponding to the form's submission. |
| void LogQualityMetrics(const AutofillMetrics& metric_logger, |
| const base::TimeTicks& load_time, |
| const base::TimeTicks& interaction_time, |
| const base::TimeTicks& submission_time) const; |
| |
| // Classifies each field in |fields_| based upon its |autocomplete| attribute, |
| // if the attribute is available. The association is stored into the field's |
| // |heuristic_type|. |
| // Fills |found_types| with |true| if the attribute is available and neither |
| // empty nor set to the special values "on" or "off" for at least one field. |
| // Fills |found_sections| with |true| if the attribute specifies a section for |
| // at least one field. |
| void ParseFieldTypesFromAutocompleteAttributes(bool* found_types, |
| bool* found_sections); |
| |
| // Determines whether |type| and |field| match. |
| typedef base::Callback<bool(ServerFieldType type, |
| const AutofillField& field)> |
| InputFieldComparator; |
| |
| // Fills in |fields_| that match |types| (via |matches|) with info from |
| // |get_info|. |
| bool FillFields( |
| const std::vector<ServerFieldType>& types, |
| const InputFieldComparator& matches, |
| const base::Callback<base::string16(const AutofillType&)>& get_info, |
| const std::string& app_locale); |
| |
| // Returns the values that can be filled into the form structure for the |
| // given type. For example, there's no way to fill in a value of "The Moon" |
| // into ADDRESS_HOME_STATE if the form only has a |
| // <select autocomplete="region"> with no "The Moon" option. Returns an |
| // empty set if the form doesn't reference the given type or if all inputs |
| // are accepted (e.g., <input type="text" autocomplete="region">). |
| // All returned values are standardized to upper case. |
| std::set<base::string16> PossibleValues(ServerFieldType type); |
| |
| // Gets the form's current value for |type|. For example, it may return |
| // the contents of a text input or the currently selected <option>. |
| base::string16 GetUniqueValue(HtmlFieldType type) const; |
| |
| const AutofillField* field(size_t index) const; |
| AutofillField* field(size_t index); |
| size_t field_count() const; |
| |
| // Returns the number of fields that are able to be autofilled. |
| size_t autofill_count() const { return autofill_count_; } |
| |
| // Used for iterating over the fields. |
| std::vector<AutofillField*>::const_iterator begin() const { |
| return fields_.begin(); |
| } |
| std::vector<AutofillField*>::const_iterator end() const { |
| return fields_.end(); |
| } |
| |
| const GURL& source_url() const { return source_url_; } |
| |
| void set_upload_required(UploadRequired required) { |
| upload_required_ = required; |
| } |
| UploadRequired upload_required() const { return upload_required_; } |
| |
| // Returns a FormData containing the data this form structure knows about. |
| // |user_submitted| is currently always false. |
| FormData ToFormData() const; |
| |
| bool operator==(const FormData& form) const; |
| bool operator!=(const FormData& form) const; |
| |
| private: |
| friend class FormStructureTest; |
| FRIEND_TEST_ALL_PREFIXES(AutofillDownloadTest, QueryAndUploadTest); |
| |
| // 64-bit hash of the string - used in FormSignature and unit-tests. |
| static std::string Hash64Bit(const std::string& str); |
| |
| enum EncodeRequestType { |
| QUERY, |
| UPLOAD, |
| FIELD_ASSIGNMENTS, |
| }; |
| |
| // Adds form info to |encompassing_xml_element|. |request_type| indicates if |
| // it is a query or upload. |
| bool EncodeFormRequest(EncodeRequestType request_type, |
| buzz::XmlElement* encompassing_xml_element) const; |
| |
| // Classifies each field in |fields_| into a logical section. |
| // Sections are identified by the heuristic that a logical section should not |
| // include multiple fields of the same autofill type (with some exceptions, as |
| // described in the implementation). Sections are furthermore distinguished |
| // as either credit card or non-credit card sections. |
| // If |has_author_specified_sections| is true, only the second pass -- |
| // distinguishing credit card sections from non-credit card ones -- is made. |
| void IdentifySections(bool has_author_specified_sections); |
| |
| // Returns true if field should be skipped when talking to Autofill server. |
| bool ShouldSkipField(const FormFieldData& field) const; |
| |
| size_t active_field_count() const; |
| |
| // The name of the form. |
| base::string16 form_name_; |
| |
| // The source URL. |
| GURL source_url_; |
| |
| // The target URL. |
| GURL target_url_; |
| |
| // The number of fields able to be auto-filled. |
| size_t autofill_count_; |
| |
| // A vector of all the input fields in the form. |
| ScopedVector<AutofillField> fields_; |
| |
| // The number of fields counted towards form signature and request to Autofill |
| // server. |
| size_t active_field_count_; |
| |
| // The names of the form input elements, that are part of the form signature. |
| // The string starts with "&" and the names are also separated by the "&" |
| // character. E.g.: "&form_input1_name&form_input2_name&...&form_inputN_name" |
| std::string form_signature_field_names_; |
| |
| // Whether the server expects us to always upload, never upload, or default |
| // to the stored upload rates. |
| UploadRequired upload_required_; |
| |
| // Whether the form includes any field types explicitly specified by the site |
| // author, via the |autocompletetype| attribute. |
| bool has_author_specified_types_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FormStructure); |
| }; |
| |
| } // namespace autofill |
| |
| #endif // COMPONENTS_AUTOFILL_CORE_BROWSER_FORM_STRUCTURE_H_ |