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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/autofill/core/browser/credit_card_field.h" | 5 #include "components/autofill/core/browser/credit_card_field.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
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25 return NULL; | 25 return NULL; |
26 | 26 |
27 scoped_ptr<CreditCardField> credit_card_field(new CreditCardField); | 27 scoped_ptr<CreditCardField> credit_card_field(new CreditCardField); |
28 size_t saved_cursor = scanner->SaveCursor(); | 28 size_t saved_cursor = scanner->SaveCursor(); |
29 | 29 |
30 // Credit card fields can appear in many different orders. | 30 // Credit card fields can appear in many different orders. |
31 // We loop until no more credit card related fields are found, see |break| at | 31 // We loop until no more credit card related fields are found, see |break| at |
32 // bottom of the loop. | 32 // bottom of the loop. |
33 for (int fields = 0; !scanner->IsEnd(); ++fields) { | 33 for (int fields = 0; !scanner->IsEnd(); ++fields) { |
34 // Ignore gift card fields. | 34 // Ignore gift card fields. |
35 if (ParseField(scanner, UTF8ToUTF16(autofill::kGiftCardRe), NULL)) | 35 if (ParseField(scanner, base::UTF8ToUTF16(autofill::kGiftCardRe), NULL)) |
36 break; | 36 break; |
37 | 37 |
38 // Sometimes the cardholder field is just labeled "name". Unfortunately this | 38 // Sometimes the cardholder field is just labeled "name". Unfortunately this |
39 // is a dangerously generic word to search for, since it will often match a | 39 // is a dangerously generic word to search for, since it will often match a |
40 // name (not cardholder name) field before or after credit card fields. So | 40 // name (not cardholder name) field before or after credit card fields. So |
41 // we search for "name" only when we've already parsed at least one other | 41 // we search for "name" only when we've already parsed at least one other |
42 // credit card field and haven't yet parsed the expiration date (which | 42 // credit card field and haven't yet parsed the expiration date (which |
43 // usually appears at the end). | 43 // usually appears at the end). |
44 if (credit_card_field->cardholder_ == NULL) { | 44 if (credit_card_field->cardholder_ == NULL) { |
45 base::string16 name_pattern; | 45 base::string16 name_pattern; |
46 if (fields == 0 || credit_card_field->expiration_month_) { | 46 if (fields == 0 || credit_card_field->expiration_month_) { |
47 // at beginning or end | 47 // at beginning or end |
48 name_pattern = UTF8ToUTF16(autofill::kNameOnCardRe); | 48 name_pattern = base::UTF8ToUTF16(autofill::kNameOnCardRe); |
49 } else { | 49 } else { |
50 name_pattern = UTF8ToUTF16(autofill::kNameOnCardContextualRe); | 50 name_pattern = base::UTF8ToUTF16(autofill::kNameOnCardContextualRe); |
51 } | 51 } |
52 | 52 |
53 if (ParseField(scanner, name_pattern, &credit_card_field->cardholder_)) | 53 if (ParseField(scanner, name_pattern, &credit_card_field->cardholder_)) |
54 continue; | 54 continue; |
55 | 55 |
56 // As a hard-coded hack for Expedia's billing pages (expedia_checkout.html | 56 // As a hard-coded hack for Expedia's billing pages (expedia_checkout.html |
57 // and ExpediaBilling.html in our test suite), recognize separate fields | 57 // and ExpediaBilling.html in our test suite), recognize separate fields |
58 // for the cardholder's first and last name if they have the labels "cfnm" | 58 // for the cardholder's first and last name if they have the labels "cfnm" |
59 // and "clnm". | 59 // and "clnm". |
60 scanner->SaveCursor(); | 60 scanner->SaveCursor(); |
61 const AutofillField* first; | 61 const AutofillField* first; |
62 if (ParseField(scanner, ASCIIToUTF16("^cfnm"), &first) && | 62 if (ParseField(scanner, base::ASCIIToUTF16("^cfnm"), &first) && |
63 ParseField(scanner, ASCIIToUTF16("^clnm"), | 63 ParseField(scanner, base::ASCIIToUTF16("^clnm"), |
64 &credit_card_field->cardholder_last_)) { | 64 &credit_card_field->cardholder_last_)) { |
65 credit_card_field->cardholder_ = first; | 65 credit_card_field->cardholder_ = first; |
66 continue; | 66 continue; |
67 } | 67 } |
68 scanner->Rewind(); | 68 scanner->Rewind(); |
69 } | 69 } |
70 | 70 |
71 // Check for a credit card type (Visa, MasterCard, etc.) field. | 71 // Check for a credit card type (Visa, MasterCard, etc.) field. |
72 base::string16 type_pattern = UTF8ToUTF16(autofill::kCardTypeRe); | 72 base::string16 type_pattern = base::UTF8ToUTF16(autofill::kCardTypeRe); |
73 if (!credit_card_field->type_ && | 73 if (!credit_card_field->type_ && |
74 ParseFieldSpecifics(scanner, type_pattern, | 74 ParseFieldSpecifics(scanner, type_pattern, |
75 MATCH_DEFAULT | MATCH_SELECT, | 75 MATCH_DEFAULT | MATCH_SELECT, |
76 &credit_card_field->type_)) { | 76 &credit_card_field->type_)) { |
77 continue; | 77 continue; |
78 } | 78 } |
79 | 79 |
80 // We look for a card security code before we look for a credit | 80 // We look for a card security code before we look for a credit |
81 // card number and match the general term "number". The security code | 81 // card number and match the general term "number". The security code |
82 // has a plethora of names; we've seen "verification #", | 82 // has a plethora of names; we've seen "verification #", |
83 // "verification number", "card identification number" and others listed | 83 // "verification number", "card identification number" and others listed |
84 // in the |pattern| below. | 84 // in the |pattern| below. |
85 base::string16 pattern = UTF8ToUTF16(autofill::kCardCvcRe); | 85 base::string16 pattern = base::UTF8ToUTF16(autofill::kCardCvcRe); |
86 if (!credit_card_field->verification_ && | 86 if (!credit_card_field->verification_ && |
87 ParseField(scanner, pattern, &credit_card_field->verification_)) { | 87 ParseField(scanner, pattern, &credit_card_field->verification_)) { |
88 continue; | 88 continue; |
89 } | 89 } |
90 | 90 |
91 pattern = UTF8ToUTF16(autofill::kCardNumberRe); | 91 pattern = base::UTF8ToUTF16(autofill::kCardNumberRe); |
92 if (!credit_card_field->number_ && | 92 if (!credit_card_field->number_ && |
93 ParseField(scanner, pattern, &credit_card_field->number_)) { | 93 ParseField(scanner, pattern, &credit_card_field->number_)) { |
94 continue; | 94 continue; |
95 } | 95 } |
96 | 96 |
97 if (LowerCaseEqualsASCII(scanner->Cursor()->form_control_type, "month")) { | 97 if (LowerCaseEqualsASCII(scanner->Cursor()->form_control_type, "month")) { |
98 credit_card_field->expiration_date_ = scanner->Cursor(); | 98 credit_card_field->expiration_date_ = scanner->Cursor(); |
99 scanner->Advance(); | 99 scanner->Advance(); |
100 } else { | 100 } else { |
101 // First try to parse split month/year expiration fields. | 101 // First try to parse split month/year expiration fields. |
102 scanner->SaveCursor(); | 102 scanner->SaveCursor(); |
103 pattern = UTF8ToUTF16(autofill::kExpirationMonthRe); | 103 pattern = base::UTF8ToUTF16(autofill::kExpirationMonthRe); |
104 if (!credit_card_field->expiration_month_ && | 104 if (!credit_card_field->expiration_month_ && |
105 ParseFieldSpecifics(scanner, pattern, MATCH_DEFAULT | MATCH_SELECT, | 105 ParseFieldSpecifics(scanner, pattern, MATCH_DEFAULT | MATCH_SELECT, |
106 &credit_card_field->expiration_month_)) { | 106 &credit_card_field->expiration_month_)) { |
107 pattern = UTF8ToUTF16(autofill::kExpirationYearRe); | 107 pattern = base::UTF8ToUTF16(autofill::kExpirationYearRe); |
108 if (ParseFieldSpecifics(scanner, pattern, MATCH_DEFAULT | MATCH_SELECT, | 108 if (ParseFieldSpecifics(scanner, pattern, MATCH_DEFAULT | MATCH_SELECT, |
109 &credit_card_field->expiration_year_)) { | 109 &credit_card_field->expiration_year_)) { |
110 continue; | 110 continue; |
111 } | 111 } |
112 } | 112 } |
113 | 113 |
114 // If that fails, try to parse a combined expiration field. | 114 // If that fails, try to parse a combined expiration field. |
115 if (!credit_card_field->expiration_date_) { | 115 if (!credit_card_field->expiration_date_) { |
116 // Look for a 2-digit year first. | 116 // Look for a 2-digit year first. |
117 scanner->Rewind(); | 117 scanner->Rewind(); |
118 pattern = UTF8ToUTF16(autofill::kExpirationDate2DigitYearRe); | 118 pattern = base::UTF8ToUTF16(autofill::kExpirationDate2DigitYearRe); |
119 // We allow <select> fields, because they're used e.g. on qvc.com. | 119 // We allow <select> fields, because they're used e.g. on qvc.com. |
120 if (ParseFieldSpecifics(scanner, pattern, | 120 if (ParseFieldSpecifics(scanner, pattern, |
121 MATCH_LABEL | MATCH_VALUE | MATCH_TEXT | | 121 MATCH_LABEL | MATCH_VALUE | MATCH_TEXT | |
122 MATCH_SELECT, | 122 MATCH_SELECT, |
123 &credit_card_field->expiration_date_)) { | 123 &credit_card_field->expiration_date_)) { |
124 credit_card_field->is_two_digit_year_ = true; | 124 credit_card_field->is_two_digit_year_ = true; |
125 continue; | 125 continue; |
126 } | 126 } |
127 | 127 |
128 pattern = UTF8ToUTF16(autofill::kExpirationDateRe); | 128 pattern = base::UTF8ToUTF16(autofill::kExpirationDateRe); |
129 if (ParseFieldSpecifics(scanner, pattern, | 129 if (ParseFieldSpecifics(scanner, pattern, |
130 MATCH_LABEL | MATCH_VALUE | MATCH_TEXT | | 130 MATCH_LABEL | MATCH_VALUE | MATCH_TEXT | |
131 MATCH_SELECT, | 131 MATCH_SELECT, |
132 &credit_card_field->expiration_date_)) { | 132 &credit_card_field->expiration_date_)) { |
133 continue; | 133 continue; |
134 } | 134 } |
135 } | 135 } |
136 | 136 |
137 if (credit_card_field->expiration_month_ && | 137 if (credit_card_field->expiration_month_ && |
138 !credit_card_field->expiration_year_ && | 138 !credit_card_field->expiration_year_ && |
139 !credit_card_field->expiration_date_) { | 139 !credit_card_field->expiration_date_) { |
140 // Parsed a month but couldn't parse a year; give up. | 140 // Parsed a month but couldn't parse a year; give up. |
141 scanner->RewindTo(saved_cursor); | 141 scanner->RewindTo(saved_cursor); |
142 return NULL; | 142 return NULL; |
143 } | 143 } |
144 } | 144 } |
145 | 145 |
146 // Some pages (e.g. ExpediaBilling.html) have a "card description" | 146 // Some pages (e.g. ExpediaBilling.html) have a "card description" |
147 // field; we parse this field but ignore it. | 147 // field; we parse this field but ignore it. |
148 // We also ignore any other fields within a credit card block that | 148 // We also ignore any other fields within a credit card block that |
149 // start with "card", under the assumption that they are related to | 149 // start with "card", under the assumption that they are related to |
150 // the credit card section being processed but are uninteresting to us. | 150 // the credit card section being processed but are uninteresting to us. |
151 if (ParseField(scanner, UTF8ToUTF16(autofill::kCardIgnoredRe), NULL)) | 151 if (ParseField(scanner, base::UTF8ToUTF16(autofill::kCardIgnoredRe), NULL)) |
152 continue; | 152 continue; |
153 | 153 |
154 break; | 154 break; |
155 } | 155 } |
156 | 156 |
157 // Some pages have a billing address field after the cardholder name field. | 157 // Some pages have a billing address field after the cardholder name field. |
158 // For that case, allow only just the cardholder name field. The remaining | 158 // For that case, allow only just the cardholder name field. The remaining |
159 // CC fields will be picked up in a following CreditCardField. | 159 // CC fields will be picked up in a following CreditCardField. |
160 if (credit_card_field->cardholder_) | 160 if (credit_card_field->cardholder_) |
161 return credit_card_field.release(); | 161 return credit_card_field.release(); |
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221 ok = ok && AddClassification(expiration_year_, | 221 ok = ok && AddClassification(expiration_year_, |
222 CREDIT_CARD_EXP_4_DIGIT_YEAR, | 222 CREDIT_CARD_EXP_4_DIGIT_YEAR, |
223 map); | 223 map); |
224 } | 224 } |
225 } | 225 } |
226 | 226 |
227 return ok; | 227 return ok; |
228 } | 228 } |
229 | 229 |
230 } // namespace autofill | 230 } // namespace autofill |
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