ErlDate = calendar:datetime()

convert_request_date/1 converts DateString to the Erlang date format. DateString must be in one of the three date formats defined in RFC 2616.

Etag = string()

create_etag/1 calculates the Etag for a file from its size and time for last modification. FileInfo is a record defined in kernel/include/file.hrl.

DayOfWeek = string()

day/1 converts the day of the week (NthDayOfWeek) from an integer (1-7) to an abbreviated string, that is:

1 = "Mon", 2 = "Tue", ..., 7 = "Sat".

Key = Undefined = term()

Result = term() | Undefined

lookup extracts {Key, Value} tuples from ETSTable and returns the Value associated with Key. If ETSTable is of type bag, only the first Value associated with Key is returned. lookup/2 returns undefined and lookup/3 returns Undefined if no Value is found.

ConfigDB = ets:tid()

Suffix = string()

Undefined = term()

MimeType = string() | Undefined

lookup_mime returns the MIME type associated with a specific file suffix as specified in the file mime.types (located in the config directory).

ConfigDB = ets:tid()

Suffix = string()

Undefined = term()

MimeType = string() | Undefined

lookup_mime_default returns the MIME type associated with a specific file suffix as specified in the mime.types file (located in the config directory). If no appropriate association is found, the value of DefaultType is returned.

StatusCode = 301 | 304 | 400 | 401 | 403 | 404 | 408 | 412 | 413 | 414 | 500 | 501 | 503 | 504

PhraseArgs = term()

ConfigDB = ets:tid()

Message = string()

message/3 returns an informative HTTP 1.1 status string in HTML. Each StatusCode requires a specific PhraseArgs:

• 301 - string/0: A URL pointing at the new document position.

• 400 | 401 | 500 - none (no PhraseArgs).

• 403 | 404 - string/0: A Request-URI as described in RFC 2616.

• 501 - {Method, RequestURI, HTTPVersion}: The HTTP Method, Request-URI, and HTTP-Version as defined in RFC 2616.

• 504 - string/0: A string describing why the service was unavailable.

Month = string()

month/1 converts the month NthMonth as an integer (1-12) to an abbreviated string, that is:

1 = "Jan", 2 = "Feb", ..., 12 = "Dec".

Result = list() | [term()]

multi_lookup extracts all {Key, Value} tuples from an ETSTable and returns all Values associated with Key in a list.

StatusCode = 100 | 101 | 102 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 226 | 300 | 301 | 302 |
          303 | 304 | 305 | 306 | 307 | 308 | 400 | 401 | 402 | 403 | 404 | 405 | 406 | 407 | 408 |
          409 | 410 | 411 | 412 | 413 | 414 | 415 | 416 | 417 | 422 | 423 | 424 | 425 | 426 | 500 |
          501 | 502 | 503 | 504 | 505 | 507

Description = string()

reason_phrase returns Description of an HTTP 1.1 StatusCode, for example, 200 is "OK" and 201 is "Created". For more information, see RFC 2616.

RFC1123Date = string() | undefined

rfc1123_date/0 returns the current date in RFC 1123 format. rfc_date/1 converts the date in the Erlang format to the RFC 1123 date format.

String = RegExp = string()

N = non_neg_integer()

SplitRes = {ok, FieldList} | {error, term()}

FieldList = [string()]

split/3 splits String in N chunks using RegExp. split/3 is equivalent to re:split/3 with the exception that N defines the maximum number of fields in FieldList.

URIString = Path = QueryStringOrPathInfo = string()

Result = {Path, QueryStringOrPathInfo}

split_path/1 splits RequestLine in a file reference (Path), and a QueryString or a PathInfo string as specified in RFC 2616. A QueryString is isolated from Path with a question mark (?) and PathInfo with a slash (/). In the case of a QueryString, everything before ? is a Path and everything after ? is a QueryString. In the case of a PathInfo, RequestLine is scanned from left-to-right on the hunt for longest possible Path being a file or a directory. Everything after the longest possible Path, isolated with a /, is regarded as PathInfo

URIString = Path = PathInfo = QueryString = string()

Split = not_a_script | {Path, {PathInfo, QueryString}} | {Path, []}

split_script_path/1 is equivalent to split_path/1 with one exception. If the longest possible path is not a regular, accessible, and executable file, then not_a_script is returned.