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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef NET_TOOLS_BALSA_BALSA_ENUMS_H_ | |
| 6 #define NET_TOOLS_BALSA_BALSA_ENUMS_H_ | |
| 7 | |
| 8 namespace net { | |
| 9 | |
| 10 struct BalsaFrameEnums { | |
| 11 enum ParseState { | |
| 12 PARSE_ERROR, | |
| 13 READING_HEADER_AND_FIRSTLINE, | |
| 14 READING_CHUNK_LENGTH, | |
| 15 READING_CHUNK_EXTENSION, | |
| 16 READING_CHUNK_DATA, | |
| 17 READING_CHUNK_TERM, | |
| 18 READING_LAST_CHUNK_TERM, | |
| 19 READING_TRAILER, | |
| 20 READING_UNTIL_CLOSE, | |
| 21 READING_CONTENT, | |
| 22 MESSAGE_FULLY_READ, | |
| 23 NUM_STATES, | |
| 24 }; | |
| 25 | |
| 26 enum ErrorCode { | |
| 27 #if defined(_WIN32) | |
| 28 // On Windows, <WinError.h> defines the NO_ERROR macro as 0L, which | |
| 29 // breaks the compilation of the "NO_ERROR = 0" line. | |
| 30 #undef NO_ERROR | |
| 31 #endif | |
| 32 NO_ERROR = 0, // A sentinel value for convenience, none of the callbacks | |
| 33 // should ever see this error code. | |
| 34 // Header parsing errors | |
| 35 // Note that adding one to many of the REQUEST errors yields the | |
| 36 // appropriate RESPONSE error. | |
| 37 // Particularly, when parsing the first line of a request or response, | |
| 38 // there are three sequences of non-whitespace regardless of whether or | |
| 39 // not it is a request or response. These are listed below, in order. | |
| 40 // | |
| 41 // firstline_a firstline_b firstline_c | |
| 42 // REQ: method request_uri version | |
| 43 // RESP: version statuscode reason | |
| 44 // | |
| 45 // As you can see, the first token is the 'method' field for a request, | |
| 46 // and 'version' field for a response. We call the first non whitespace | |
| 47 // token firstline_a, the second firstline_b, and the third token | |
| 48 // followed by [^\r\n]*) firstline_c. | |
| 49 // | |
| 50 // This organization is important, as it lets us determine the error code | |
| 51 // to use without a branch based on is_response. Instead, we simply add | |
| 52 // is_response to the response error code-- If is_response is true, then | |
| 53 // we'll get the response error code, thanks to the fact that the error | |
| 54 // code numbers are organized to ensure that response error codes always | |
| 55 // precede request error codes. | |
| 56 // | Triggered | |
| 57 // | while processing | |
| 58 // | this NONWS | |
| 59 // | sequence... | |
| 60 NO_STATUS_LINE_IN_RESPONSE, // | | |
| 61 NO_REQUEST_LINE_IN_REQUEST, // | | |
| 62 FAILED_TO_FIND_WS_AFTER_RESPONSE_VERSION, // | firstline_a | |
| 63 FAILED_TO_FIND_WS_AFTER_REQUEST_METHOD, // | firstline_a | |
| 64 FAILED_TO_FIND_WS_AFTER_RESPONSE_STATUSCODE, // | firstline_b | |
| 65 FAILED_TO_FIND_WS_AFTER_REQUEST_REQUEST_URI, // | firstline_b | |
| 66 FAILED_TO_FIND_NL_AFTER_RESPONSE_REASON_PHRASE, // | firstline_c | |
| 67 FAILED_TO_FIND_NL_AFTER_REQUEST_HTTP_VERSION, // | firstline_c | |
| 68 | |
| 69 FAILED_CONVERTING_STATUS_CODE_TO_INT, | |
| 70 REQUEST_URI_TOO_LONG, // Request URI greater than kMaxUrlLen. | |
| 71 | |
| 72 HEADERS_TOO_LONG, | |
| 73 UNPARSABLE_CONTENT_LENGTH, | |
| 74 // Warning: there may be a body but there was no content-length/chunked | |
| 75 // encoding | |
| 76 MAYBE_BODY_BUT_NO_CONTENT_LENGTH, | |
| 77 | |
| 78 // This is used if a body is required for a request. | |
| 79 REQUIRED_BODY_BUT_NO_CONTENT_LENGTH, | |
| 80 | |
| 81 HEADER_MISSING_COLON, | |
| 82 | |
| 83 // Chunking errors | |
| 84 INVALID_CHUNK_LENGTH, | |
| 85 CHUNK_LENGTH_OVERFLOW, | |
| 86 | |
| 87 // Other errors. | |
| 88 CALLED_BYTES_SPLICED_WHEN_UNSAFE_TO_DO_SO, | |
| 89 CALLED_BYTES_SPLICED_AND_EXCEEDED_SAFE_SPLICE_AMOUNT, | |
| 90 MULTIPLE_CONTENT_LENGTH_KEYS, | |
| 91 MULTIPLE_TRANSFER_ENCODING_KEYS, | |
| 92 UNKNOWN_TRANSFER_ENCODING, | |
| 93 INVALID_HEADER_FORMAT, | |
| 94 | |
| 95 // A detected internal inconsistency was found. | |
| 96 INTERNAL_LOGIC_ERROR, | |
| 97 | |
| 98 NUM_ERROR_CODES | |
| 99 }; | |
| 100 static const char* ParseStateToString(ParseState error_code); | |
| 101 static const char* ErrorCodeToString(ErrorCode error_code); | |
| 102 }; | |
| 103 | |
| 104 struct BalsaHeadersEnums { | |
| 105 enum ContentLengthStatus { | |
| 106 INVALID_CONTENT_LENGTH, | |
| 107 CONTENT_LENGTH_OVERFLOW, | |
| 108 NO_CONTENT_LENGTH, | |
| 109 VALID_CONTENT_LENGTH, | |
| 110 }; | |
| 111 }; | |
| 112 | |
| 113 } // namespace net | |
| 114 | |
| 115 #endif // NET_TOOLS_BALSA_BALSA_ENUMS_H_ | |
| 116 | |
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Chromium Code Reviews
Issue 2477703002:
Remove now unused Balsa code. (Closed)
