std/httpcore

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Contains functionality shared between the httpclient and asynchttpserver modules.

Unstable API.

Imports

since, tables, strutils, parseutils

Types

HttpCode = distinct range[0 .. 599]

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HttpHeaders = ref object
  table*: TableRef[string, seq[string]]

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HttpHeaderValues = distinct seq[string]

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HttpMethod = enum
  HttpHead = "HEAD",        ## Asks for the response identical to the one that
                             ## would correspond to a GET request, but without
                             ## the response body.
  HttpGet = "GET",          ## Retrieves the specified resource.
  HttpPost = "POST",        ## Submits data to be processed to the identified
                             ## resource. The data is included in the body of
                             ## the request.
  HttpPut = "PUT",          ## Uploads a representation of the specified
                             ## resource.
  HttpDelete = "DELETE",    ## Deletes the specified resource.
  HttpTrace = "TRACE",      ## Echoes back the received request, so that a
                             ## client
                             ## can see what intermediate servers are adding or
                             ## changing in the request.
  HttpOptions = "OPTIONS",  ## Returns the HTTP methods that the server
                             ## supports for specified address.
  HttpConnect = "CONNECT",  ## Converts the request connection to a transparent
                             ## TCP/IP tunnel, usually used for proxies.
  HttpPatch = "PATCH"        ## Applies partial modifications to a resource.

the requested HttpMethod Source Edit

HttpVersion = enum
  HttpVer11, HttpVer10

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Consts

headerLimit = 10000

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Http100 = 100

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Http101 = 101

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Http102 = 102

https://tools.ietf.org/html/rfc2518.html WebDAV Source Edit

Http103 = 103

https://tools.ietf.org/html/rfc8297.html Early hints Source Edit

Http200 = 200

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Http201 = 201

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Http202 = 202

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Http203 = 203

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Http204 = 204

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Http205 = 205

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Http206 = 206

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Http207 = 207

https://tools.ietf.org/html/rfc4918.html WebDAV Source Edit

Http208 = 208

https://tools.ietf.org/html/rfc5842.html WebDAV, Section 7.1 Source Edit

Http226 = 226

https://tools.ietf.org/html/rfc3229.html Delta encoding, Section 10.4.1 Source Edit

Http300 = 300

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Http301 = 301

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Http302 = 302

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Http303 = 303

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Http304 = 304

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Http305 = 305

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Http307 = 307

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Http308 = 308

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Http400 = 400

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Http401 = 401

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Http402 = 402

https://tools.ietf.org/html/rfc7231.html Payment required, Section 6.5.2 Source Edit

Http403 = 403

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Http404 = 404

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Http405 = 405

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Http406 = 406

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Http407 = 407

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Http408 = 408

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Http409 = 409

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Http410 = 410

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Http411 = 411

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Http412 = 412

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Http413 = 413

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Http414 = 414

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Http415 = 415

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Http416 = 416

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Http417 = 417

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Http418 = 418

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Http421 = 421

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Http422 = 422

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Http423 = 423

https://tools.ietf.org/html/rfc4918.html WebDAV, Section 11.3 Source Edit

Http424 = 424

https://tools.ietf.org/html/rfc4918.html WebDAV, Section 11.3 Source Edit

Http425 = 425

https://tools.ietf.org/html/rfc8470.html Early data Source Edit

Http426 = 426

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Http428 = 428

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Http429 = 429

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Http431 = 431

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Http451 = 451

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Http500 = 500

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Http501 = 501

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Http502 = 502

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Http503 = 503

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Http504 = 504

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Http505 = 505

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Http506 = 506

https://tools.ietf.org/html/rfc2295.html Content negotiation, Section 8.1 Source Edit

Http507 = 507

https://tools.ietf.org/html/rfc4918.html WebDAV, Section 11.5 Source Edit

Http508 = 508

https://tools.ietf.org/html/rfc5842.html WebDAV, Section 7.2 Source Edit

Http510 = 510

https://tools.ietf.org/html/rfc2774.html Extension framework, Section 7 Source Edit

Http511 = 511

https://tools.ietf.org/html/rfc6585.html Additional status code, Section 6 Source Edit

httpNewLine = "\r\n"

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Procs

func `$`(code: HttpCode): string {....raises: [], tags: [], forbids: [].}

Converts the specified HttpCode into a HTTP status.

Example:

doAssert($Http404 == "404 Not Found")

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func `$`(headers: HttpHeaders): string {.inline, ...raises: [], tags: [],
    forbids: [].}

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func `==`(a, b: HttpCode): bool {.borrow, ...raises: [], tags: [], forbids: [].}

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func `==`(protocol: tuple[orig: string, major, minor: int]; ver: HttpVersion): bool {.
    ...raises: [], tags: [], forbids: [].}

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func `[]`(headers: HttpHeaders; key: string): HttpHeaderValues {.
    ...raises: [KeyError], tags: [], forbids: [].}

Returns the values associated with the given key. If the returned values are passed to a procedure expecting a string, the first value is automatically picked. If there are no values associated with the key, an exception is raised.

To access multiple values of a key, use the overloaded [] below or to get all of them access the table field directly.

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func `[]`(headers: HttpHeaders; key: string; i: int): string {.
    ...raises: [KeyError], tags: [], forbids: [].}

Returns the i'th value associated with the given key. If there are no values associated with the key or the i'th value doesn't exist, an exception is raised. Source Edit

proc `[]=`(headers: HttpHeaders; key, value: string) {....raises: [], tags: [],
    forbids: [].}

Sets the header entries associated with key to the specified value. Replaces any existing values. Source Edit

proc `[]=`(headers: HttpHeaders; key: string; value: seq[string]) {....raises: [],
    tags: [], forbids: [].}

Sets the header entries associated with key to the specified list of values. Replaces any existing values. If value is empty, deletes the header entries associated with key. Source Edit

proc add(headers: HttpHeaders; key, value: string) {....raises: [KeyError],
    tags: [], forbids: [].}

Adds the specified value to the specified key. Appends to any existing values associated with the key. Source Edit

proc clear(headers: HttpHeaders) {.inline, ...raises: [], tags: [], forbids: [].}

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func contains(methods: set[HttpMethod]; x: string): bool {....raises: [ValueError],
    tags: [], forbids: [].}

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func contains(values: HttpHeaderValues; value: string): bool {....raises: [],
    tags: [], forbids: [].}

Determines if value is one of the values inside values. Comparison is performed without case sensitivity. Source Edit

proc del(headers: HttpHeaders; key: string) {....raises: [], tags: [], forbids: [].}

Deletes the header entries associated with key Source Edit

func getOrDefault(headers: HttpHeaders; key: string;
                  default = @[""].HttpHeaderValues): HttpHeaderValues {.
    ...raises: [KeyError], tags: [], forbids: [].}

Returns the values associated with the given key. If there are no values associated with the key, then default is returned. Source Edit

func hasKey(headers: HttpHeaders; key: string): bool {....raises: [], tags: [],
    forbids: [].}

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func is1xx(code: HttpCode): bool {.inline, ...raises: [], tags: [], forbids: [].}

Determines whether code is a 1xx HTTP status code.

Example:

doAssert is1xx(HttpCode(103))

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func is2xx(code: HttpCode): bool {.inline, ...raises: [], tags: [], forbids: [].}

Determines whether code is a 2xx HTTP status code. Source Edit

func is3xx(code: HttpCode): bool {.inline, ...raises: [], tags: [], forbids: [].}

Determines whether code is a 3xx HTTP status code. Source Edit

func is4xx(code: HttpCode): bool {.inline, ...raises: [], tags: [], forbids: [].}

Determines whether code is a 4xx HTTP status code. Source Edit

func is5xx(code: HttpCode): bool {.inline, ...raises: [], tags: [], forbids: [].}

Determines whether code is a 5xx HTTP status code. Source Edit

func len(headers: HttpHeaders): int {.inline, ...raises: [], tags: [], forbids: [].}

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func newHttpHeaders(keyValuePairs: openArray[tuple[key: string, val: string]];
                    titleCase = false): HttpHeaders {....raises: [KeyError],
    tags: [], forbids: [].}

Returns a new HttpHeaders object from an array. if titleCase is set to true, headers are passed to the server in title case (e.g. "Content-Length") Source Edit

func newHttpHeaders(titleCase = false): HttpHeaders {....raises: [], tags: [],
    forbids: [].}

Returns a new HttpHeaders object. if titleCase is set to true, headers are passed to the server in title case (e.g. "Content-Length") Source Edit

func parseHeader(line: string): tuple[key: string, value: seq[string]] {.
    ...raises: [], tags: [], forbids: [].}

Parses a single raw header HTTP line into key value pairs.

Used by asynchttpserver and httpclient internally and should not be used by you.

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func toCaseInsensitive(headers: HttpHeaders; s: string): string {.inline,
    ...raises: [], tags: [], forbids: [].}

For internal usage only. Do not use. Source Edit

Iterators

iterator pairs(headers: HttpHeaders): tuple[key, value: string] {....raises: [],
    tags: [], forbids: [].}

Yields each key, value pair. Source Edit

Converters

converter toString(values: HttpHeaderValues): string {....raises: [], tags: [],
    forbids: [].}

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