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Jan-Erik Rediger 2024-06-01 16:46:01 +02:00
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[submodule "backend/vendor/hare-http"] [submodule "backend/vendor/hare-http"]
path = backend/vendor/hare-http path = vendor/hare-http
url = https://git.fnordig.de/jer/hare-http.git url = https://git.fnordig.de/jer/hare-http.git
branch = host-in-uri branch = host-in-uri
[submodule "backend/vendor/hare-logfmt"] [submodule "backend/vendor/hare-logfmt"]
path = backend/vendor/hare-logfmt path = vendor/hare-logfmt
url = https://git.sr.ht/~blainsmith/hare-logfmt url = https://git.sr.ht/~blainsmith/hare-logfmt
[submodule "backend/vendor/hare-json"] [submodule "backend/vendor/hare-json"]
path = backend/vendor/hare-json path = vendor/hare-json
url = https://git.sr.ht/~sircmpwn/hare-json url = https://git.sr.ht/~sircmpwn/hare-json

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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.

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use getopt;
use io;
use log;
use net::dial;
use net::http;
use net::uri;
use os;
use strings;
const usage: [_]getopt::help = [
"HTTP client",
('H', "Name:value", "Sets an HTTP header"),
('X', "method", "Sets the HTTP method verb"),
"url"
];
export fn main() void = {
const client = http::newclient("Hare net::http test client");
defer http::client_finish(&client);
const cmd = getopt::parse(os::args, usage...);
defer getopt::finish(&cmd);
if (len(cmd.args) != 1) {
getopt::printusage(os::stderr, "http", usage)!;
os::exit(os::status::FAILURE);
};
const targ = match (uri::parse(cmd.args[0])) {
case let u: uri::uri =>
yield u;
case uri::invalid =>
log::fatal("Invalid URI");
};
defer uri::finish(&targ);
let req = http::new_request(&client, "GET", &targ)!;
for (let i = 0z; i < len(cmd.opts); i += 1) {
const (opt, val) = cmd.opts[i];
switch (opt) {
case 'H' =>
const (name, val) = strings::cut(val, ":");
http::header_add(&req.header, name, val);
case 'X' =>
req.method = val;
case => abort();
};
};
const resp = match (http::do(&client, &req)) {
case let err: http::error =>
log::fatal("HTTP error:", http::strerror(err));
case let resp: http::response =>
yield resp;
};
defer http::response_finish(&resp);
log::printfln("HTTP/{}.{}: {} {}",
resp.version.0, resp.version.1,
resp.status, resp.reason);
for (let i = 0z; i < len(resp.header); i += 1) {
const (name, val) = resp.header[i];
log::printfln("{}: {}", name, val);
};
const body = match (resp.body) {
case let st: *io::stream =>
yield st;
case null =>
return;
};
io::copy(os::stdout, body)!;
io::close(body)!;
};

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use getopt;
use net;
use net::ip;
use net::http;
use net::dial;
use os;
use memio;
use io;
use fmt;
use bufio;
use strings;
const usage: [_]getopt::help = [
"HTTP server",
('a', "address", "listened address (ex: 127.0.0.1:8080)")
];
export fn main() void = {
const cmd = getopt::parse(os::args, usage...);
defer getopt::finish(&cmd);
let port: u16 = 8080;
let ip_addr: ip::addr4 = [127, 0, 0, 1];
for (let i = 0z; i < len(cmd.opts); i += 1) {
const opt = cmd.opts[i];
switch (opt.0) {
case 'a' =>
match (dial::splitaddr(opt.1, "")) {
case let value: (str, u16) =>
ip_addr = ip::parsev4(value.0)!;
port = value.1;
case dial::invalid_address =>
abort("Invalid address");
};
case => abort(); // unreachable
};
};
const server = match (http::listen(ip_addr, port)) {
case let this: *http::server =>
yield this;
case net::error => abort("failure while listening");
};
defer http::server_finish(server);
for (true) {
const serv_req = match (http::serve(server)) {
case let this: *http::server_request =>
yield this;
case net::error => abort("failure while serving");
};
defer http::serve_finish(serv_req);
let buf = memio::dynamic();
defer io::close(&buf)!;
handlereq(&buf, &serv_req.request);
http::response_write(
serv_req.socket,
http::STATUS_OK,
&buf,
("Content-Type", "text/plain")
)!;
};
};
export fn handlereq(buf: *io::stream, request: *http::request) void = {
fmt::fprintfln(buf, "Method: {}", request.method)!;
fmt::fprintfln(buf, "Path: {}", request.target.path)!;
fmt::fprintfln(buf, "Fragment: {}", request.target.fragment)!;
fmt::fprintfln(buf, "Query: {}", request.target.query)!;
fmt::fprintfln(buf, "Headers: <<EOF")!;
http::write_header(buf, &request.header)!;
fmt::fprintfln(buf, "EOF")!;
match (request.body) {
case void => void;
case let body: io::handle =>
fmt::fprintfln(buf, "Body: <<EOF")!;
for (true) {
match (bufio::read_line(body)!) {
case let line: []u8 =>
fmt::fprintln(buf, strings::fromutf8(line)!)!;
break;
case io::EOF =>
break;
};
};
fmt::fprintfln(buf, "EOF")!;
};
};

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net::http provides an implementation of an HTTP 1.1 client and server as defined
by RFC 9110 et al.
TODO: Flesh me out
Caveats:
- No attempt is made to validate that the input for client requests or responses
are valid according to the HTTP grammar; such cases will fail when rejected by
the other party.
- Details indicated by RFC 7230 et al as "obsolete" are not implemented
- Max header length including "name: value" is 4KiB
TODO:
- Server stuff
- TLS

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use io;
use net::uri;
export type client = struct {
default_header: header,
default_transport: transport,
};
// Creates a new HTTP [[client]] with the provided User-Agent string.
//
// The HTTP client implements a number of sane defaults, which may be tuned. The
// set of default headers is configured with [[client_default_header]], and the
// default transport behavior with [[client_default_transport]].
//
// TODO: Implement and document the connection pool
//
// The caller must pass the client object to [[client_finish]] to free resources
// associated with this client after use.
export fn newclient(ua: str) client = {
let client = client { ... };
header_add(&client, "User-Agent", ua);
return client;
};
// Frees resources associated with an HTTP [[client]].
export fn client_finish(client: *client) void = {
header_free(&client.default_header);
};
// Returns the default headers used by this HTTP client, so that the user can
// examine or modify the net::http defaults (such as User-Agent or
// Accept-Encoding), or add their own.
export fn client_default_header(client: *client) *header = {
return &client.default_header;
};
// Returns the default [[transport]] configuration used by this HTTP client.
export fn client_default_transport(client: *client) *transport = {
return &client.default_transport;
};
fn uri_origin_form(target: *uri::uri) uri::uri = {
let target = *target;
target.scheme = "";
target.host = "";
target.fragment = "";
target.userinfo = "";
target.port = 0;
if (target.path == "") {
target.path = "/";
};
return target;
};
// Performs a synchronous HTTP GET request with the given client.
export fn get(client: *client, target: *uri::uri) (response | error) = {
const req = new_request(client, GET, target)?;
defer request_finish(&req);
return do(client, &req);
};
// Performs a synchronous HTTP HEAD request with the given client.
export fn head(client: *client, target: *uri::uri) (response | error) = {
const req = new_request(client, HEAD, target)?;
defer request_finish(&req);
return do(client, &req);
};
// Performs a synchronous HTTP POST request with the given client.
//
// If the provided I/O handle is seekable, the Content-Length header is added
// automatically. Otherwise, Transfer-Encoding: chunked will be used.
export fn post(
client: *client,
target: *uri::uri,
body: io::handle,
) (response | error) = {
const req = new_request_body(client, POST, target, body)?;
defer request_finish(&req);
return do(client, &req);
};
// Performs a synchronous HTTP PUT request with the given client.
//
// If the provided I/O handle is seekable, the Content-Length header is added
// automatically. Otherwise, Transfer-Encoding: chunked will be used.
export fn put(
client: *client,
target: *uri::uri,
body: io::handle,
) (response | error) = {
const req = new_request_body(client, PUT, target, body)?;
defer request_finish(&req);
return do(client, &req);
};

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// HTTP "GET" method.
export def GET: str = "GET";
// HTTP "HEAD" method.
export def HEAD: str = "HEAD";
// HTTP "POST" method.
export def POST: str = "POST";
// HTTP "PUT" method.
export def PUT: str = "PUT";
// HTTP "DELETE" method.
export def DELETE: str = "DELETE";
// HTTP "OPTIONS" method.
export def OPTIONS: str = "OPTIONS";
// HTTP "PATCH" method.
export def PATCH: str = "PATCH";
// HTTP "CONNECT" method.
export def CONNECT: str = "CONNECT";
// HTTP "Continue" response status (100).
export def STATUS_CONTINUE: uint = 100;
// HTTP "Switching Protocols" response status (101).
export def STATUS_SWITCHING_PROTOCOLS: uint = 101;
// HTTP "OK" response status (200).
export def STATUS_OK: uint = 200;
// HTTP "Created" response status (201).
export def STATUS_CREATED: uint = 201;
// HTTP "Accepted" response status (202).
export def STATUS_ACCEPTED: uint = 202;
// HTTP "Non-authoritative Info" response status (203).
export def STATUS_NONAUTHORITATIVE_INFO: uint = 203;
// HTTP "No Content" response status (204).
export def STATUS_NO_CONTENT: uint = 204;
// HTTP "Reset Content" response status (205).
export def STATUS_RESET_CONTENT: uint = 205;
// HTTP "Partial Content" response status (206).
export def STATUS_PARTIAL_CONTENT: uint = 206;
// HTTP "Multiple Choices" response status (300).
export def STATUS_MULTIPLE_CHOICES: uint = 300;
// HTTP "Moved Permanently" response status (301).
export def STATUS_MOVED_PERMANENTLY: uint = 301;
// HTTP "Found" response status (302).
export def STATUS_FOUND: uint = 302;
// HTTP "See Other" response status (303).
export def STATUS_SEE_OTHER: uint = 303;
// HTTP "Not Modified" response status (304).
export def STATUS_NOT_MODIFIED: uint = 304;
// HTTP "Use Proxy" response status (305).
export def STATUS_USE_PROXY: uint = 305;
// HTTP "Temporary Redirect" response status (307).
export def STATUS_TEMPORARY_REDIRECT: uint = 307;
// HTTP "Permanent Redirect" response status (308).
export def STATUS_PERMANENT_REDIRECT: uint = 308;
// HTTP "Bad Request" response status (400).
export def STATUS_BAD_REQUEST: uint = 400;
// HTTP "Unauthorized" response status (401).
export def STATUS_UNAUTHORIZED: uint = 401;
// HTTP "Payment Required" response status (402).
export def STATUS_PAYMENT_REQUIRED: uint = 402;
// HTTP "Forbidden" response status (403).
export def STATUS_FORBIDDEN: uint = 403;
// HTTP "Not Found" response status (404).
export def STATUS_NOT_FOUND: uint = 404;
// HTTP "Method Not Allowed" response status (405).
export def STATUS_METHOD_NOT_ALLOWED: uint = 405;
// HTTP "Not Acceptable" response status (406).
export def STATUS_NOT_ACCEPTABLE: uint = 406;
// HTTP "Proxy Authentication Required" response status (407).
export def STATUS_PROXY_AUTH_REQUIRED: uint = 407;
// HTTP "Request Timeout" response status (408).
export def STATUS_REQUEST_TIMEOUT: uint = 408;
// HTTP "Conflict" response status (409).
export def STATUS_CONFLICT: uint = 409;
// HTTP "Gone" response status (410).
export def STATUS_GONE: uint = 410;
// HTTP "Length Required" response status (411).
export def STATUS_LENGTH_REQUIRED: uint = 411;
// HTTP "Precondition Failed" response status (412).
export def STATUS_PRECONDITION_FAILED: uint = 412;
// HTTP "Request Entity Too Large" response status (413).
export def STATUS_REQUEST_ENTITY_TOO_LARGE: uint = 413;
// HTTP "Request URI Too Long" response status (414).
export def STATUS_REQUEST_URI_TOO_LONG: uint = 414;
// HTTP "Unsupported Media Type" response status (415).
export def STATUS_UNSUPPORTED_MEDIA_TYPE: uint = 415;
// HTTP "Requested Range Not Satisfiable" response status (416).
export def STATUS_REQUESTED_RANGE_NOT_SATISFIABLE: uint = 416;
// HTTP "Expectation Failed" response status (417).
export def STATUS_EXPECTATION_FAILED: uint = 417;
// HTTP "I'm a Teapot" response status (418).
export def STATUS_TEAPOT: uint = 418;
// HTTP "Misdirected Request" response status (421).
export def STATUS_MISDIRECTED_REQUEST: uint = 421;
// HTTP "Unprocessable Entity" response status (422).
export def STATUS_UNPROCESSABLE_ENTITY: uint = 422;
// HTTP "Upgrade Required" response status (426).
export def STATUS_UPGRADE_REQUIRED: uint = 426;
// HTTP "Internal Server Error" response status (500).
export def STATUS_INTERNAL_SERVER_ERROR: uint = 500;
// HTTP "Not Implemented" response status (501).
export def STATUS_NOT_IMPLEMENTED: uint = 501;
// HTTP "Bad Gateway" response status (502).
export def STATUS_BAD_GATEWAY: uint = 502;
// HTTP "Service Unavailable" response status (503).
export def STATUS_SERVICE_UNAVAILABLE: uint = 503;
// HTTP "Gateway Timeout" response status (504).
export def STATUS_GATEWAY_TIMEOUT: uint = 504;
// HTTP "HTTP Version Not Supported" response status (505).
export def STATUS_HTTP_VERSION_NOT_SUPPORTED: uint = 505;

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use bufio;
use encoding::utf8;
use errors;
use fmt;
use io;
use net::dial;
use net::uri;
use net;
use os;
use strconv;
use strings;
use types;
// Performs an HTTP [[request]] with the given [[client]]. The request is
// performed synchronously; this function blocks until the server has returned
// the response status and all HTTP headers associated with the response.
//
// If the provided [[response]] has a non-null body, the user must pass it to
// [[io::close]] before calling [[response_finish]].
export fn do(client: *client, req: *request) (response | error) = {
assert(req.target.scheme == "http"); // TODO: https
const conn = dial::dial_uri("tcp", req.target)?;
let buf: [os::BUFSZ]u8 = [0...];
let file = bufio::init(conn, [], buf);
bufio::setflush(&file, []);
fmt::fprintf(&file, "{} ", req.method)?;
// TODO: Support other request-targets than origin-form
const target = uri_origin_form(req.target);
uri::fmt(&file, &target)?;
fmt::fprintf(&file, " HTTP/1.1\r\n")?;
write_header(&file, &req.header)?;
fmt::fprintf(&file, "\r\n")?;
bufio::flush(&file)?;
const trans = match (req.transport) {
case let t: *transport =>
yield t;
case =>
yield &client.default_transport;
};
// TODO: Implement None
assert(trans.request_transport == transport_mode::AUTO);
assert(trans.response_transport == transport_mode::AUTO);
assert(trans.request_content == content_mode::AUTO);
assert(trans.response_content == content_mode::AUTO);
match (req.body) {
case let body: io::handle =>
io::copy(conn, body)?;
case void =>
yield;
};
let resp = response { ... };
const scan = bufio::newscanner(conn, 512);
read_statusline(&resp, &scan)?;
read_header(&resp.header, &scan)?;
const response_complete =
req.method == "HEAD" ||
resp.status == STATUS_NO_CONTENT ||
resp.status == STATUS_NOT_MODIFIED ||
(resp.status >= 100 && resp.status < 200) ||
(req.method == "CONNECT" && resp.status >= 200 && resp.status < 300);
if (!response_complete) {
resp.body = new_reader(conn, &resp, &scan)?;
} else if (req.method != "CONNECT") {
io::close(conn)!;
};
return resp;
};
fn read_statusline(
resp: *response,
scan: *bufio::scanner,
) (void | error) = {
const status = match (bufio::scan_string(scan, "\r\n")) {
case let line: const str =>
yield line;
case let err: io::error =>
return err;
case utf8::invalid =>
return protoerr;
case io::EOF =>
return protoerr;
};
const tok = strings::tokenize(status, " ");
const version = match (strings::next_token(&tok)) {
case let ver: str =>
yield ver;
case done =>
return protoerr;
};
const status = match (strings::next_token(&tok)) {
case let status: str =>
yield status;
case done =>
return protoerr;
};
const reason = match (strings::next_token(&tok)) {
case let reason: str =>
yield reason;
case done =>
return protoerr;
};
const (_, version) = strings::cut(version, "/");
const (major, minor) = strings::cut(version, ".");
const major = match (strconv::stou(major)) {
case let u: uint =>
yield u;
case =>
return protoerr;
};
const minor = match (strconv::stou(minor)) {
case let u: uint =>
yield u;
case =>
return protoerr;
};
resp.version = (major, minor);
if (resp.version.0 > 1) {
return errors::unsupported;
};
resp.status = match (strconv::stou(status)) {
case let u: uint =>
yield u;
case =>
return protoerr;
};
resp.reason = strings::dup(reason);
};

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use errors;
use io;
use net::dial;
// Errors possible while servicing HTTP requests. Note that these errors are for
// errors related to the processing of the HTTP connection; semantic HTTP errors
// such as [[STATUS_NOT_FOUND]] are not handled by this type.
export type error = !(dial::error | io::error | errors::unsupported | protoerr);
// An HTTP protocol error occurred, indicating that the remote party is not
// conformant with HTTP semantics.
export type protoerr = !void;
// Converts an [[error]] to a string.
export fn strerror(err: error) const str = {
match (err) {
case let err: dial::error =>
return dial::strerror(err);
case let err: io::error =>
return io::strerror(err);
case errors::unsupported =>
return "Unsupported HTTP feature";
case protoerr =>
return "HTTP protocol error";
};
};

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use bufio;
use encoding::utf8;
use fmt;
use io;
use strings;
// List of HTTP headers.
// TODO: [](str, []str)
export type header = [](str, str);
// Adds a given HTTP header, which may be added more than once. The name should
// be canonicalized by the caller.
export fn header_add(head: *header, name: str, val: str) void = {
assert(len(name) >= 1 && len(val) >= 1);
append(head, (strings::dup(name), strings::dup(val)));
};
// Sets the value of a given HTTP header, removing any previous values. The name
// should be canonicalized by the caller.
export fn header_set(head: *header, name: str, val: str) void = {
header_del(head, name);
header_add(head, name, val);
};
// Removes an HTTP header from a list of [[header]]. If multiple headers match
// the given name, all matching headers are removed.
export fn header_del(head: *header, name: str) void = {
for (let i = 0z; i < len(head); i += 1) {
if (head[i].0 == name) {
free(head[i].0);
free(head[i].1);
delete(head[i]);
i -= 1;
};
};
};
// Retrieves a value, or values, from a header. An empty string indicates the
// absence of a header.
export fn header_get(head: *header, name: str) str = {
for (let i = 0z; i < len(head); i += 1) {
const (key, val) = head[i];
if (key == name) {
return val;
};
};
return "";
};
// Frees state associated with an HTTP [[header]].
export fn header_free(head: *header) void = {
for (let i = 0z; i < len(head); i += 1) {
free(head[i].0);
free(head[i].1);
};
free(*head);
};
// Duplicates a set of HTTP headers.
export fn header_dup(head: *header) header = {
let new: header = [];
for (let i = 0z; i < len(head); i += 1) {
const (key, val) = head[i];
header_add(&new, key, val);
};
return new;
};
// Writes a list of HTTP headers to the provided I/O handle in the HTTP wire
// format.
export fn write_header(sink: io::handle, head: *header) (size | io::error) = {
let z = 0z;
for (let i = 0z; i < len(head); i += 1) {
const (name, val) = head[i];
z += fmt::fprintf(sink, "{}: {}\r\n", name, val)?;
};
return z;
};
fn read_header(head: *header, scan: *bufio::scanner) (void | io::error | protoerr) = {
for (true) {
const item = match (bufio::scan_string(scan, "\r\n")) {
case let line: const str =>
yield line;
case io::EOF =>
break;
case let err: io::error =>
return err;
case utf8::invalid =>
return protoerr;
};
if (item == "") {
break;
};
let (name, val) = strings::cut(item, ":");
val = strings::trim(val);
if (val == "") {
return protoerr;
};
// TODO: validate field-name
header_add(head, name, val);
};
};

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use errors;
use fmt;
use io;
use net::ip;
use net::uri;
use strconv;
use strings;
use bufio;
use memio;
use encoding::utf8;
use types;
// Stores state related to an HTTP request.
//
// For a request to be processable by an HTTP [[client]], i.e. via [[do]], the
// method and target must be filled in appropriately. The target must include at
// least a host, port, and scheme. The default values for other fields are
// suitable if appropriate for the request you wish to perform.
export type request = struct {
// HTTP request method, e.g. GET
method: str,
// Request target URI.
//
// Note that the normal constraints for [[uri::parse]] are not upheld in
// the case of a request using the origin-form (e.g. /index.html), i.e.
// the scheme field may be empty.
target: *uri::uri,
// List of HTTP request headers.
header: header,
// Transport configuration, or null to use the [[client]] default.
transport: nullable *transport,
// I/O reader for the request body, or void if there is no body.
body: (io::handle | void),
};
// Frees state associated with an HTTP [[request]].
export fn request_finish(req: *request) void = {
header_free(&req.header);
uri::finish(req.target);
free(req.target);
};
// Creates a new HTTP [[request]] using the given HTTP [[client]] defaults.
export fn new_request(
client: *client,
method: str,
target: *uri::uri,
) (request | errors::unsupported) = {
let req = request {
method = method,
target = alloc(uri::dup(target)),
header = header_dup(&client.default_header),
transport = null,
body = void,
};
switch (req.target.scheme) {
case "http" =>
if (req.target.port == 0) {
req.target.port = 80;
};
case "https" =>
if (req.target.port == 0) {
req.target.port = 443;
};
case =>
return errors::unsupported;
};
let host = match (req.target.host) {
case let host: str =>
yield host;
case let ip: ip::addr4 =>
yield ip::string(ip);
case let ip: ip::addr6 =>
static let buf: [64 + 2]u8 = [0...];
yield fmt::bsprintf(buf, "[{}]", ip::string(ip));
};
if (req.target.scheme == "http" && req.target.port != 80) {
host = fmt::asprintf("{}:{}", host, req.target.port);
} else if (target.scheme == "https" && target.port != 443) {
host = fmt::asprintf("{}:{}", host, req.target.port);
} else {
host = strings::dup(host);
};
defer free(host);
header_add(&req.header, "Host", host);
return req;
};
// Creates a new HTTP [[request]] using the given HTTP [[client]] defaults and
// the provided request body.
//
// If the provided I/O handle is seekable, the Content-Length header is added
// automatically. Otherwise, Transfer-Encoding: chunked will be used.
export fn new_request_body(
client: *client,
method: str,
target: *uri::uri,
body: io::handle,
) (request | errors::unsupported) = {
let req = new_request(client, method, target)?;
req.body = body;
const offs = match (io::seek(body, 0, io::whence::CUR)) {
case let off: io::off =>
yield off;
case io::error =>
header_add(&req.header, "Transfer-Encoding", "chunked");
return req;
};
const ln = io::seek(body, 0, io::whence::END)!;
io::seek(body, offs, io::whence::SET)!;
header_add(&req.header, "Content-Length", strconv::ztos(ln: size));
return req;
};
export type request_server = void;
export type authority = void;
export type request_uri = (
request_server |
authority |
*uri::uri |
str |
);
export type request_line = struct {
method: str,
uri: request_uri,
version: version,
};
export fn request_parse(file: io::handle) (request | protoerr | io::error) = {
const scan = bufio::newscanner(file, types::SIZE_MAX);
defer bufio::finish(&scan);
const req_line = request_line_parse(&scan)?;
defer request_line_finish(&req_line);
let header: header = [];
read_header(&header, &scan)?;
const target = match (req_line.uri) {
case let uri: request_server => return errors::unsupported;
case let uri: authority => return errors::unsupported;
case let uri: *uri::uri => yield uri;
case let path: str =>
const host = header_get(&header, "Host");
const uri = fmt::asprintf("http://{}{}", host, path);
defer free(uri);
yield alloc(uri::parse(uri)!);
};
const length: (void | size) = void;
const head_length = header_get(&header, "Content-Length");
if ("" != head_length) {
match (strconv::stoz(head_length)) {
case let s: size => length = s;
case strconv::invalid => return protoerr;
case strconv::overflow => return protoerr;
};
};
let body: (io::handle | void) = void;
if (length is size) {
const limit = io::limitreader(&scan, length as size);
let _body = alloc(memio::dynamic());
io::copy(_body, &limit)!;
io::seek(_body, 0, io::whence::SET)!;
body = _body;
};
return request {
method = req_line.method,
target = target,
header = header,
body = body,
...
};
};
export fn parsed_request_finish(request: *request) void = {
uri::finish(request.target);
free(request.target);
match (request.body) {
case void => yield;
case let body: io::handle =>
io::close(body)!;
free(body: *memio::stream);
};
header_free(&request.header);
};
export fn request_line_parse(scan: *bufio::scanner) (request_line | protoerr | io::error) = {
const line = match (bufio::scan_string(scan, "\r\n")) {
case let line: const str =>
yield line;
case let err: io::error =>
return err;
case utf8::invalid =>
return protoerr;
case io::EOF =>
return protoerr;
};
const tok = strings::tokenize(line, " ");
const method = match (strings::next_token(&tok)) {
case let method: str =>
yield strings::dup(method);
case done =>
return protoerr;
};
const uri: request_uri = match (strings::next_token(&tok)) {
case let req_uri: str =>
if ("*" == req_uri) {
yield request_server;
};
yield match (uri::parse(req_uri)) {
case let uri: uri::uri => yield alloc(uri);
case => yield strings::dup(req_uri); // as path
};
case done =>
return protoerr;
};
const version = match (strings::next_token(&tok)) {
case let ver: str =>
yield ver;
case done =>
return protoerr;
};
const (_, version) = strings::cut(version, "/");
const (major, minor) = strings::cut(version, ".");
const major = match (strconv::stou(major)) {
case let u: uint =>
yield u;
case =>
return protoerr;
};
const minor = match (strconv::stou(minor)) {
case let u: uint =>
yield u;
case =>
return protoerr;
};
if (major > 1) {
return errors::unsupported;
};
if (uri is request_server && method != OPTIONS) {
return protoerr;
};
return request_line {
method = method,
uri = uri,
version = (major, minor),
};
};
export fn request_line_finish(line: *request_line) void = {
match (line.uri) {
case let path: str => free(path);
case => yield;
};
};

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use io;
use os;
use fmt;
use strconv;
export type version = (uint, uint);
// Stores state related to an HTTP response.
export type response = struct {
// HTTP protocol version (major, minor)
version: version,
// The HTTP status for this request as an integer.
status: uint,
// The HTTP status reason phrase.
reason: str,
// The HTTP headers provided by the server.
header: header,
// The response body, if any.
body: nullable *io::stream,
};
// Frees state associated with an HTTP [[response]]. If the response has a
// non-null body, the user must call [[io::close]] prior to calling this
// function.
export fn response_finish(resp: *response) void = {
header_free(&resp.header);
free(resp.reason);
free(resp.body);
};
export fn response_write(
rw: io::handle,
status: uint,
body: (void | io::handle),
header: (str, str)...
) (void | io::error) = {
fmt::fprintfln(rw, "HTTP/1.1 {} {}", status, status_reason(status))?;
let header = header_dup(&header);
defer header_free(&header);
match (body) {
case void => void;
case let body: io::handle =>
match (io::tell(body)) {
case io::error => void;
case let off: io::off =>
header_add(&header, "Content-Length", strconv::i64tos(off));
io::seek(body, 0, io::whence::SET)!;
body = &io::limitreader(body, off: size);
};
};
write_header(rw, &header)?;
fmt::fprintln(rw)!;
match (body) {
case void => void;
case let body: io::handle =>
io::copy(rw, body)!;
};
};

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vendor/hare-http/net/http/server.ha vendored Normal file
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use net;
use net::ip;
use net::tcp;
use net::tcp::{listen_option};
export type server = struct {
socket: net::socket,
};
export type server_request = struct {
socket: net::socket,
request: request,
};
export fn listen(ip: ip::addr, port: u16, options: listen_option...) (*server | net::error) = {
return alloc(server {
socket = tcp::listen(ip, port, options...)?,
});
};
export fn server_finish(server: *server) void = {
net::close(server.socket)!;
free(server);
};
export fn accept(server: *server) (net::socket | net::error) = {
return net::accept(server.socket)?;
};
export fn serve(server: *server) (*server_request | net::error) = {
const socket = accept(server)?;
const request = request_parse(socket)!;
return alloc(server_request {
request = request,
socket = socket,
});
};
export fn serve_finish(serv_req: *server_request) void = {
parsed_request_finish(&serv_req.request);
net::close(serv_req.socket)!;
free(serv_req);
};

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// A semantic HTTP error and its status code.
export type httperror = !uint;
// Checks if an HTTP status code is semantically considered an error, returning
// [[httperror]] if so, or otherwise returning the original status code.
export fn check(status: uint) (uint | httperror) = {
if (status >= 400 && status < 600) {
return status: httperror;
};
return status;
};
// Converts a standard HTTP status code into the reason text typically
// associated with this status code (or "Unknown Status" if the status code is
// not known to net::http).
export fn status_reason(status: uint) const str = {
switch (status) {
case STATUS_CONTINUE =>
return "Continue";
case STATUS_SWITCHING_PROTOCOLS =>
return "Switching Protocols";
case STATUS_OK =>
return "Continue";
case STATUS_CREATED =>
return "Continue";
case STATUS_ACCEPTED =>
return "Accepted";
case STATUS_NONAUTHORITATIVE_INFO =>
return "Non-Authoritative Information";
case STATUS_NO_CONTENT =>
return "No Content";
case STATUS_RESET_CONTENT =>
return "Reset Content";
case STATUS_PARTIAL_CONTENT =>
return "Partial Content";
case STATUS_MULTIPLE_CHOICES =>
return "Multiple Choices";
case STATUS_MOVED_PERMANENTLY =>
return "Moved Permanently";
case STATUS_FOUND =>
return "Found";
case STATUS_SEE_OTHER =>
return "See Other";
case STATUS_NOT_MODIFIED =>
return "Not Modified";
case STATUS_USE_PROXY =>
return "Use Proxy";
case STATUS_TEMPORARY_REDIRECT =>
return "Temporary Redirect";
case STATUS_PERMANENT_REDIRECT =>
return "Permanent Redirect";
case STATUS_BAD_REQUEST =>
return "Bad Request";
case STATUS_UNAUTHORIZED =>
return "Unauthorized";
case STATUS_PAYMENT_REQUIRED =>
return "Payment Required";
case STATUS_FORBIDDEN =>
return "Forbidden";
case STATUS_NOT_FOUND =>
return "Not Found";
case STATUS_METHOD_NOT_ALLOWED =>
return "Method Not Allowed";
case STATUS_NOT_ACCEPTABLE =>
return "Not Acceptable";
case STATUS_PROXY_AUTH_REQUIRED =>
return "Proxy Authentication Required";
case STATUS_REQUEST_TIMEOUT =>
return "Request Timeout";
case STATUS_CONFLICT =>
return "Conflict";
case STATUS_GONE =>
return "Gone";
case STATUS_LENGTH_REQUIRED =>
return "Length Required";
case STATUS_PRECONDITION_FAILED =>
return "Precondition Failed";
case STATUS_REQUEST_ENTITY_TOO_LARGE =>
return "Request Entity Too Large";
case STATUS_REQUEST_URI_TOO_LONG =>
return "Request URI Too Long";
case STATUS_UNSUPPORTED_MEDIA_TYPE =>
return "Unsupported Media Type";
case STATUS_REQUESTED_RANGE_NOT_SATISFIABLE =>
return "Requested Range Not Satisfiable";
case STATUS_EXPECTATION_FAILED =>
return "Expectation Failed";
case STATUS_TEAPOT =>
return "I'm A Teapot";
case STATUS_MISDIRECTED_REQUEST =>
return "Misdirected Request";
case STATUS_UNPROCESSABLE_ENTITY =>
return "Unprocessable Entity";
case STATUS_UPGRADE_REQUIRED =>
return "Upgrade Required";
case STATUS_INTERNAL_SERVER_ERROR =>
return "Internal Server Error";
case STATUS_NOT_IMPLEMENTED =>
return "Not Implemented";
case STATUS_BAD_GATEWAY =>
return "Bad Gateway";
case STATUS_SERVICE_UNAVAILABLE =>
return "Service Unavailable";
case STATUS_GATEWAY_TIMEOUT =>
return "Gateway Timeout";
case STATUS_HTTP_VERSION_NOT_SUPPORTED =>
return "HTTP Version Not Supported";
case =>
return "Unknown status";
};
};

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use errors;
use bufio;
use bytes;
use io;
use os;
use strconv;
use strings;
use types;
// Configures the Transport-Encoding behavior.
//
// If set to NONE, no transport decoding or encoding is performed on the message
// body, irrespective of the value of the Transport-Encoding header. The user
// must perform any required encoding or decoding themselves in this mode. If
// set to AUTO, the implementation will examine the Transport-Encoding header
// and encode the message body appropriately.
//
// Most users will want this to be set to auto.
export type transport_mode = enum {
AUTO = 0,
NONE,
};
// Configures the Content-Encoding behavior.
//
// If set to NONE, no transport decoding or encoding is performed on the message
// body, irrespective of the value of the Content-Encoding header. The user must
// perform any required encoding or decoding themselves in this mode. If set to
// AUTO, the implementation will examine the Content-Encoding header and encode
// the message body appropriately.
//
// Most users will want this to be set to AUTO.
export type content_mode = enum {
AUTO = 0,
NONE,
};
// Describes an HTTP [[client]]'s transport configuration for a given request.
//
// The default value of this type sets all parameters to "auto".
export type transport = struct {
// Desired Transport-Encoding configuration, see [[transport_mode]] for
// details.
request_transport: transport_mode,
response_transport: transport_mode,
// Desired Content-Encoding configuration, see [[content_mode]] for
// details.
request_content: content_mode,
response_content: content_mode,
};
fn new_reader(
conn: io::file,
resp: *response,
scan: *bufio::scanner,
) (*io::stream | errors::unsupported | protoerr) = {
// TODO: Content-Encoding support
const cl = header_get(&resp.header, "Content-Length");
const te = header_get(&resp.header, "Transfer-Encoding");
if (cl != "" || te == "") {
let length = types::SIZE_MAX;
if (cl != "") {
length = match (strconv::stoz(cl)) {
case let z: size =>
yield z;
case =>
return protoerr;
};
};
return new_identity_reader(conn, scan, length);
};
// TODO: Figure out the semantics for closing the stream
// The caller should probably be required to close it
// It should close/free any intermediate transport/content decoders
// And it should not close the actual connection if it's still in the
// connection pool
// Unless it isn't in the pool, then it should!
let stream: io::handle = conn;
let buffer: []u8 = bufio::scan_buffer(scan);
const iter = strings::tokenize(te, ",");
for (const tok => strings::next_token(&iter)) {
const te = strings::trim(tok);
// XXX: We could add lzw support if someone added it to
// hare-compress
const next = switch (te) {
case "chunked" =>
yield new_chunked_reader(stream, buffer);
case "deflate" =>
abort(); // TODO
case "gzip" =>
abort(); // TODO
case =>
return errors::unsupported;
};
stream = next;
buffer = [];
};
if (!(stream is *io::stream)) {
// Empty Transfer-Encoding header
return protoerr;
};
return stream as *io::stream;
};
type identity_reader = struct {
vtable: io::stream,
conn: io::file,
scan: *bufio::scanner,
src: io::limitstream,
};
const identity_reader_vtable = io::vtable {
reader = &identity_read,
closer = &identity_close,
...
};
// Creates a new reader that reads data until the response's Content-Length is
// reached; i.e. the null Transport-Encoding.
fn new_identity_reader(
conn: io::file,
scan: *bufio::scanner,
content_length: size,
) *io::stream = {
const scan = alloc(*scan);
return alloc(identity_reader {
vtable = &identity_reader_vtable,
conn = conn,
scan = scan,
src = io::limitreader(scan, content_length),
...
});
};
fn identity_read(
s: *io::stream,
buf: []u8,
) (size | io::EOF | io::error) = {
let rd = s: *identity_reader;
assert(rd.vtable == &identity_reader_vtable);
return io::read(&rd.src, buf)?;
};
fn identity_close(s: *io::stream) (void | io::error) = {
let rd = s: *identity_reader;
assert(rd.vtable == &identity_reader_vtable);
// Flush the remainder of the response in case the caller did not read
// it out entirely
io::copy(io::empty, &rd.src)?;
bufio::finish(rd.scan);
free(rd.scan);
io::close(rd.conn)?;
};
type chunk_state = enum {
HEADER,
DATA,
FOOTER,
};
type chunked_reader = struct {
vtable: io::stream,
conn: io::handle,
buffer: [os::BUFSZ]u8,
state: chunk_state,
// Amount of read-ahead data in buffer
pending: size,
// Length of current chunk
length: size,
};
fn new_chunked_reader(
conn: io::handle,
buffer: []u8,
) *io::stream = {
let rd = alloc(chunked_reader {
vtable = &chunked_reader_vtable,
conn = conn,
...
});
rd.buffer[..len(buffer)] = buffer[..];
rd.pending = len(buffer);
return rd;
};
const chunked_reader_vtable = io::vtable {
reader = &chunked_read,
...
};
fn chunked_read(
s: *io::stream,
buf: []u8,
) (size | io::EOF | io::error) = {
// XXX: I am not satisfied with this code
let rd = s: *chunked_reader;
assert(rd.vtable == &chunked_reader_vtable);
for (true) switch (rd.state) {
case chunk_state::HEADER =>
let crlf = 0z;
for (true) {
const n = rd.pending;
match (bytes::index(rd.buffer[..n], ['\r', '\n'])) {
case let z: size =>
crlf = z;
break;
case void =>
yield;
};
if (rd.pending >= len(rd.buffer)) {
// Chunk header exceeds buffer size
return errors::overflow;
};
match (io::read(rd.conn, rd.buffer[rd.pending..])?) {
case let n: size =>
rd.pending += n;
case io::EOF =>
if (rd.pending > 0) {
return errors::invalid;
};
return io::EOF;
};
};
// XXX: Should we do anything with chunk-ext?
const header = rd.buffer[..crlf];
const (ln, _) = bytes::cut(header, ';');
const ln = match (strings::fromutf8(ln)) {
case let s: str =>
yield s;
case =>
return errors::invalid;
};
match (strconv::stoz(ln, strconv::base::HEX)) {
case let z: size =>
rd.length = z;
case =>
return errors::invalid;
};
if (rd.length == 0) {
return io::EOF;
};
const n = crlf + 2;
rd.buffer[..rd.pending - n] = rd.buffer[n..rd.pending];
rd.pending -= n;
rd.state = chunk_state::DATA;
case chunk_state::DATA =>
if (rd.pending == 0) {
match (io::read(rd.conn, rd.buffer)?) {
case let n: size =>
rd.pending += n;
case io::EOF =>
return io::EOF;
};
};
let n = len(buf);
if (n > rd.pending) {
n = rd.pending;
};
if (n > rd.length) {
n = rd.length;
};
buf[..n] = rd.buffer[..n];
rd.buffer[..rd.pending - n] = rd.buffer[n..rd.pending];
rd.pending -= n;
rd.length -= n;
rd.state = chunk_state::FOOTER;
return n;
case chunk_state::FOOTER =>
for (rd.pending < 2) {
match (io::read(rd.conn, rd.buffer[rd.pending..])?) {
case let n: size =>
rd.pending += n;
case io::EOF =>
return io::EOF;
};
};
if (!bytes::equal(rd.buffer[..2], ['\r', '\n'])) {
return errors::invalid;
};
rd.buffer[..rd.pending - 2] = rd.buffer[2..rd.pending];
rd.pending -= 2;
rd.state = chunk_state::HEADER;
};
};

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vendor/hare-json/COPYING vendored Normal file
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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.

36
vendor/hare-json/Makefile vendored Normal file
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.POSIX:
.SUFFIXES:
HARE=hare
HAREFLAGS=
HAREDOC=haredoc
DESTDIR=
PREFIX=/usr/local
SRCDIR=$(PREFIX)/src
HARESRCDIR=$(SRCDIR)/hare
THIRDPARTYDIR=$(HARESRCDIR)/third-party
all:
@true # no-op
check:
$(HARE) test
clean:
rm -rf docs
docs:
mkdir -p docs/encoding/json
$(HAREDOC) -Fhtml encoding > docs/encoding/index.html
$(HAREDOC) -Fhtml encoding::json > docs/encoding/json/index.html
install:
mkdir -p "$(DESTDIR)$(THIRDPARTYDIR)"/encoding
mkdir -p "$(DESTDIR)$(THIRDPARTYDIR)"/encoding/json
install -m644 encoding/json/README "$(DESTDIR)$(THIRDPARTYDIR)"/encoding/json/README
install -m644 encoding/json/*.ha "$(DESTDIR)$(THIRDPARTYDIR)"/encoding/json
uninstall:
rm -rf $(DESTDIR)$(THIRDPARTYDIR)/encoding/json
.PHONY: all docs clean check install uninstall

23
vendor/hare-json/README.md vendored Normal file
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@ -0,0 +1,23 @@
# hare-json
This package provides JSON support for Hare.
## Installation
### From your distribution
The recommended name for this package is "hare-json". Look for this, or
something similar, in your local package manager. This is the preferred way to
install this package.
### System-wide installation
```
make install
```
### Vendoring
```
git subtree -P vendor/hare-json/ add https://git.sr.ht/~sircmpwn/hare-json master
```

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@ -0,0 +1,62 @@
use io;
use memio;
use strings;
@test fn lex() void = {
const cases: [_](str, []token) = [
("true", [true]),
("false", [false]),
("null", [_null]),
("1234", [1234.0]),
("12.34", [12.34]),
("12.34e5", [12.34e5]),
("12.34E5", [12.34e5]),
("12.34e+5", [12.34e5]),
("12.34e-5", [12.34e-5]),
("12e5", [12.0e5]),
("-1234", [-1234.0]),
(`"hello world"`, ["hello world"]),
(`"\"\\\/\b\f\n\r\t\u0020"`, ["\"\\/\b\f\n\r\t\u0020"]),
("[ null, null ]", [arraystart, _null, comma, _null, arrayend]),
];
for (let i = 0z; i < len(cases); i += 1) {
const src = strings::toutf8(cases[i].0);
const src = memio::fixed(src);
const lexer = newlexer(&src);
defer close(&lexer);
for (let j = 0z; j < len(cases[i].1); j += 1) {
const want = cases[i].1[j];
const have = lex(&lexer)! as token;
assert(tokeq(want, have));
};
assert(lex(&lexer) is io::EOF);
};
};
fn tokeq(want: token, have: token) bool = {
match (want) {
case _null =>
return have is _null;
case comma =>
return have is comma;
case colon =>
return have is colon;
case arraystart =>
return have is arraystart;
case arrayend =>
return have is arrayend;
case objstart =>
return have is objstart;
case objend =>
return have is objend;
case let b: bool =>
return have as bool == b;
case let f: f64 =>
return have as f64 == f;
case let s: str =>
return have as str == s;
};
};

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@ -0,0 +1,164 @@
use fmt;
fn roundtrip(input: str, expected: value) void = {
const val = loadstr(input)!;
defer finish(val);
assert(equal(val, expected));
const s = dumpstr(val);
defer free(s);
const val = loadstr(s)!;
defer finish(val);
assert(equal(val, expected));
};
fn errassert(input: str, expected_loc: (uint, uint)) void = {
const loc = loadstr(input) as invalid;
if (loc.0 != expected_loc.0 || loc.1 != expected_loc.1) {
fmt::errorfln("=== JSON:\n{}", input)!;
fmt::errorfln("=== expected error location:\n({}, {})",
expected_loc.0, expected_loc.1)!;
fmt::errorfln("=== actual error location:\n({}, {})",
loc.0, loc.1)!;
abort();
};
};
@test fn load() void = {
let obj = newobject();
defer finish(obj);
let obj2 = newobject();
defer finish(obj2);
roundtrip(`1234`, 1234.0);
roundtrip(`[]`, []);
roundtrip(`[1, 2, 3, null]`, [1.0, 2.0, 3.0, _null]);
roundtrip(`{}`, obj);
set(&obj, "hello", "world");
set(&obj, "answer", 42.0);
roundtrip(`{ "hello": "world", "answer": 42 }`, obj);
reset(&obj);
roundtrip(`[[] ]`, [[]]);
roundtrip(`[""]`, [""]);
roundtrip(`["a"]`, ["a"]);
roundtrip(`[false]`, [false]);
roundtrip(`[null, 1, "1", {}]`, [_null, 1.0, "1", obj]);
roundtrip(`[null]`, [_null]);
roundtrip("[1\n]", [1.0]);
roundtrip(`[1,null,null,null,2]`, [1.0, _null, _null, _null, 2.0]);
set(&obj, "", 0.0);
roundtrip(`{"":0}`, obj);
reset(&obj);
set(&obj, "foo\0bar", 42.0);
roundtrip(`{"foo\u0000bar": 42}`, obj);
reset(&obj);
set(&obj, "min", -1.0e+28);
set(&obj, "max", 1.0e+28);
roundtrip(`{"min": -1.0e+28, "max": 1.0e+28}`, obj);
reset(&obj);
set(&obj, "id", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
set(&obj2, "id", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
set(&obj, "x", [obj2]);
roundtrip(`{"x":[{"id": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"}], "id": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"}`, obj);
reset(&obj);
reset(&obj2);
set(&obj, "a", []);
roundtrip(`{"a":[]}`, obj);
roundtrip("{\n" `"a": []` "\n}", obj);
reset(&obj);
roundtrip(`"\u0060\u012a\u12AB"`, "\u0060\u012a\u12AB");
roundtrip(`"\"\\\/\b\f\n\r\t"`, "\"\\/\b\f\n\r\t");
roundtrip(`"\\u0000"`, `\u0000`);
roundtrip(`"\""`, `"`);
roundtrip(`"a/*b*/c/*d//e"`, "a/*b*/c/*d//e");
roundtrip(`"\\a"`, `\a`);
roundtrip(`"\\n"`, `\n`);
roundtrip(`"\u0012"`, "\u0012");
roundtrip(`[ "asd"]`, ["asd"]);
roundtrip(`"new\u000Aline"`, "new\nline");
roundtrip(`"\u0000"`, "\0");
roundtrip(`"\u002c"`, "\u002c");
roundtrip(`"asd "`, "asd ");
roundtrip(`" "`, " ");
roundtrip(`"\u0821"`, "\u0821");
roundtrip(`"\u0123"`, "\u0123");
roundtrip(`"\u0061\u30af\u30EA\u30b9"`, "\u0061\u30af\u30EA\u30b9");
roundtrip(`"\uA66D"`, "\uA66D");
roundtrip(`"\u005C"`, `\`);
roundtrip(`"\u0022"`, `"`);
roundtrip(`""`, "");
roundtrip(` [] `, []);
errassert(`[1,,]`, (1, 4));
errassert(`[1 true]`, (1, 7));
errassert(`["": 1]`, (1, 4));
errassert(`[,1]`, (1, 2));
errassert(`[1,,2]`, (1, 4));
errassert(`["",]`, (1, 5));
errassert(`["x"`, (1, 5));
errassert(`[x`, (1, 2));
errassert(`[3[4]]`, (1, 3));
errassert(`[1:2]`, (1, 3));
errassert(`[,]`, (1, 2));
errassert(`[-]`, (1, 3));
errassert(`[ , ""]`, (1, 5));
errassert("[\"a\",\n4\n,1,", (3, 4));
errassert(`[1,]`, (1, 4));
errassert("[\"\va\"\\f", (1, 3));
errassert(`[*]`, (1, 2));
errassert(`[1,`, (1, 4));
errassert("[1,\n1\n,1", (3, 3));
errassert(`[{}`, (1, 4));
errassert(`["x", truth]`, (1, 11));
errassert(`{[: "x"}`, (1, 2));
errassert(`{"x", null}`, (1, 5));
errassert(`{"x"::"b"}`, (1, 6));
errassert(`{"a":"a" 123}`, (1, 12));
errassert(`{"a" b}`, (1, 6));
errassert(`{:"b"}`, (1, 2));
errassert(`{"a" "b"}`, (1, 8));
errassert(`{"a":`, (1, 6));
errassert(`{"a"`, (1, 5));
errassert(`{1:1}`, (1, 2));
errassert(`{9999E9999:1}`, (1, 10));
errassert(`{null:null,null:null}`, (1, 5));
errassert(`{"id":0,,,,,}`, (1, 9));
errassert(`{'a':0}`, (1, 2));
errassert(`{"id":0,}`, (1, 9));
errassert(`{"a":"b",,"c":"d"}`, (1, 10));
errassert(`{true: false}`, (1, 5));
errassert(`{"a":"a`, (1, 8));
errassert(`{ "foo" : "bar", "a" }`, (1, 22));
errassert(` `, (1, 2));
errassert(`<null>`, (1, 1));
errassert(`["asd]`, (1, 7));
errassert(`True`, (1, 4));
errassert(`]`, (1, 1));
errassert(`}`, (1, 1));
errassert(`{"x": true,`, (1, 12));
errassert(`[`, (1, 2));
errassert(`{`, (1, 2));
errassert(``, (1, 1));
errassert("\0", (1, 1));
errassert(`{"":`, (1, 5));
errassert(`['`, (1, 2));
errassert(`["`, (1, 3));
errassert(`[,`, (1, 2));
errassert(`[{`, (1, 3));
errassert(`{[`, (1, 2));
errassert(`{]`, (1, 2));
errassert(`[}`, (1, 2));
errassert(`{'`, (1, 2));
errassert(`{"`, (1, 3));
errassert(`{,`, (1, 2));
errassert(`["\{["\{["\{["\{`, (1, 4));
errassert(`*`, (1, 1));
errassert(`\u000A""`, (1, 1));
errassert("\f", (1, 1));
};
@test fn nestlimit() void = {
const s = `{ "foo": [[[{"bar": ["baz"]}]]] }`;
const val = loadstr(s, 6: nestlimit)!;
finish(val);
assert(loadstr(s, 5: nestlimit) is limitreached);
};

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// License: MPL-2.0
// (c) 2022 Drew DeVault <sir@cmpwn.com>
@test fn object() void = {
let obj = newobject();
defer finish(obj);
set(&obj, "hello", "world");
set(&obj, "foo", "bar");
set(&obj, "the answer", 42.0);
// XXX: Match overhaul?
assert(*(get(&obj, "hello") as *value) as str == "world");
assert(*(get(&obj, "foo") as *value) as str == "bar");
assert(*(get(&obj, "the answer") as *value) as f64 == 42.0);
assert(get(&obj, "nonexistent") is void);
del(&obj, "hello");
assert(get(&obj, "hello") is void);
};
@test fn iterator() void = {
let obj = newobject();
defer finish(obj);
set(&obj, "hello", "world");
set(&obj, "foo", "bar");
set(&obj, "the answer", 42.0);
let it = iter(&obj);
assert(next(&it) is (const str, const *value));
assert(next(&it) is (const str, const *value));
assert(next(&it) is (const str, const *value));
assert(next(&it) is void);
};
@test fn equal() void = {
let a = newobject();
defer finish(a);
set(&a, "a", 42.0);
set(&a, "A", "hello");
let b = newobject();
defer finish(b);
set(&b, "A", "hello");
set(&b, "a", 42.0);
assert(equal(a, b));
};

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vendor/hare-json/encoding/json/README vendored Normal file
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This module provides an implementation of the JavaScript Object Notation (JSON)
format, as defined by RFC 8259. Note that several other, incompatible
specifications exist. This implementation does not include any extensions; only
features which are strictly required by the spec are implemented.
A lexer for JSON values is provided, which may be initialized with [[lex]] and
provides tokens via [[next]], and which uses a relatively small amount of memory
and provides relatively few guarantees regarding the compliance of the input with
the JSON grammar.
Additionally, the [[value]] type is provided to store any value JSON value, as
well as helpers like [[newobject]], [[get]], and [[set]]. One can load a JSON
value from an input stream into a heap-allocated [[value]] via [[load]], which
enforces all of JSON's grammar constraints and returns an object which must be
freed with [[finish]].

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vendor/hare-json/encoding/json/dump.ha vendored Normal file
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// License: MPL-2.0
// (c) 2022 Sebastian <sebastian@sebsite.pw>
use fmt;
use io;
use strings;
use memio;
// Dumps a [[value]] into an [[io::handle]] as a string without any additional
// formatting.
export fn dump(out: io::handle, val: value) (size | io::error) = {
let z = 0z;
match (val) {
case let v: (f64 | bool) =>
z += fmt::fprint(out, v)?;
case let s: str =>
z += fmt::fprint(out, `"`)?;
let it = strings::iter(s);
for (const r => strings::next(&it)) {
switch (r) {
case '\b' =>
z += fmt::fprint(out, `\b`)?;
case '\f' =>
z += fmt::fprint(out, `\f`)?;
case '\n' =>
z += fmt::fprint(out, `\n`)?;
case '\r' =>
z += fmt::fprint(out, `\r`)?;
case '\t' =>
z += fmt::fprint(out, `\t`)?;
case '\"' =>
z += fmt::fprint(out, `\"`)?;
case '\\' =>
z += fmt::fprint(out, `\\`)?;
case =>
if (iscntrl(r)) {
z += fmt::fprintf(out, `\u{:.4x}`,
r: u32)?;
} else {
z += fmt::fprint(out, r)?;
};
};
};
z += fmt::fprint(out, `"`)?;
case _null =>
z += fmt::fprint(out, "null")?;
case let a: []value =>
z += fmt::fprint(out, "[")?;
for (let i = 0z; i < len(a); i += 1) {
z += dump(out, a[i])?;
if (i < len(a) - 1) {
z += fmt::fprint(out, ",")?;
};
};
z += fmt::fprint(out, "]")?;
case let o: object =>
z += fmt::fprint(out, "{")?;
let comma = false;
let it = iter(&o);
for (true) match (next(&it)) {
case void => break;
case let pair: (const str, const *value) =>
if (comma) {
z += fmt::fprint(out, ",")?;
};
comma = true;
z += dump(out, pair.0)?;
z += fmt::fprint(out, ":")?;
z += dump(out, *pair.1)?;
};
z += fmt::fprint(out, "}")?;
};
return z;
};
// Dumps a [[value]] into a string without any additional formatting. The caller
// must free the return value.
export fn dumpstr(val: value) str = {
let s = memio::dynamic();
dump(&s, val)!;
return memio::string(&s)!;
};

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// License: MPL-2.0
// (c) 2022 Drew DeVault <sir@cmpwn.com>
use ascii;
use bufio;
use encoding::utf8;
use io;
use os;
use strconv;
use strings;
use memio;
export type lexer = struct {
src: io::handle,
strbuf: memio::stream,
un: (token | void),
rb: (rune | void),
loc: (uint, uint),
prevloc: (uint, uint),
nextloc: (uint, uint),
prevrloc: (uint, uint),
};
// Creates a new JSON lexer. The caller may obtain tokens with [[lex]] and
// should pass the result to [[close]] when they're done with it.
export fn newlexer(src: io::handle) lexer = lexer {
src = src,
strbuf = memio::dynamic(),
un = void,
rb = void,
loc = (1, 0),
...
};
// Frees state associated with a JSON lexer.
export fn close(lex: *lexer) void = {
io::close(&lex.strbuf)!;
};
// Returns the next token from a JSON lexer. The return value is borrowed from
// the lexer and will be overwritten on subsequent calls.
export fn lex(lex: *lexer) (token | io::EOF | error) = {
match (lex.un) {
case void =>
lex.prevloc = lex.loc;
case let tok: token =>
lex.un = void;
lex.prevloc = lex.loc;
lex.loc = lex.nextloc;
return tok;
};
const rn = match (nextrunews(lex)?) {
case io::EOF =>
return io::EOF;
case let rn: rune =>
yield rn;
};
switch (rn) {
case '[' =>
return arraystart;
case ']' =>
return arrayend;
case '{' =>
return objstart;
case '}' =>
return objend;
case ',' =>
return comma;
case ':' =>
return colon;
case '"' =>
return scan_str(lex)?;
case =>
yield;
};
if (ascii::isdigit(rn) || rn == '-') {
unget(lex, rn);
return scan_number(lex)?;
};
if (!ascii::isalpha(rn)) {
return lex.loc: invalid;
};
unget(lex, rn);
const word = scan_word(lex)?;
switch (word) {
case "true" =>
return true;
case "false" =>
return false;
case "null" =>
return _null;
case =>
return lex.loc: invalid;
};
};
// "Unlexes" a token from the lexer, such that the next call to [[lex]] will
// return that token again. Only one token can be unlexed at a time, otherwise
// the program will abort.
export fn unlex(lex: *lexer, tok: token) void = {
assert(lex.un is void, "encoding::json::unlex called twice in a row");
lex.un = tok;
lex.nextloc = lex.loc;
lex.loc = lex.prevloc;
};
// Scans until encountering a non-alphabetical character, returning the
// resulting word.
fn scan_word(lex: *lexer) (str | error) = {
memio::reset(&lex.strbuf);
for (true) {
const rn = match (nextrune(lex)?) {
case let rn: rune =>
yield rn;
case io::EOF =>
break;
};
if (!ascii::isalpha(rn)) {
unget(lex, rn);
break;
};
memio::appendrune(&lex.strbuf, rn)!;
};
return memio::string(&lex.strbuf)!;
};
type numstate = enum {
SIGN,
START,
ZERO,
INTEGER,
FRACSTART,
FRACTION,
EXPSIGN,
EXPSTART,
EXPONENT,
};
fn scan_number(lex: *lexer) (token | error) = {
memio::reset(&lex.strbuf);
let state = numstate::SIGN;
for (true) {
const rn = match (nextrune(lex)?) {
case let rn: rune =>
yield rn;
case io::EOF =>
break;
};
switch (state) {
case numstate::SIGN =>
state = numstate::START;
if (rn != '-') {
unget(lex, rn);
continue;
};
case numstate::START =>
switch (rn) {
case '0' =>
state = numstate::ZERO;
case =>
if (!ascii::isdigit(rn)) {
return lex.loc: invalid;
};
state = numstate::INTEGER;
};
case numstate::ZERO =>
switch (rn) {
case '.' =>
state = numstate::FRACSTART;
case 'e', 'E' =>
state = numstate::EXPSIGN;
case =>
if (ascii::isdigit(rn)) {
return lex.loc: invalid;
};
unget(lex, rn);
break;
};
case numstate::INTEGER =>
switch (rn) {
case '.' =>
state = numstate::FRACSTART;
case 'e', 'E' =>
state = numstate::EXPSIGN;
case =>
if (!ascii::isdigit(rn)) {
unget(lex, rn);
break;
};
};
case numstate::FRACSTART =>
if (!ascii::isdigit(rn)) {
return lex.loc: invalid;
};
state = numstate::FRACTION;
case numstate::FRACTION =>
switch (rn) {
case 'e', 'E' =>
state = numstate::EXPSIGN;
case =>
if (!ascii::isdigit(rn)) {
unget(lex, rn);
break;
};
};
case numstate::EXPSIGN =>
state = numstate::EXPSTART;
if (rn != '+' && rn != '-') {
unget(lex, rn);
continue;
};
case numstate::EXPSTART =>
if (!ascii::isdigit(rn)) {
return lex.loc: invalid;
};
state = numstate::EXPONENT;
case numstate::EXPONENT =>
if (!ascii::isdigit(rn)) {
unget(lex, rn);
break;
};
};
memio::appendrune(&lex.strbuf, rn)!;
};
match (strconv::stof64(memio::string(&lex.strbuf)!)) {
case let f: f64 =>
return f;
case =>
return lex.loc: invalid;
};
};
fn scan_str(lex: *lexer) (token | error) = {
memio::reset(&lex.strbuf);
for (true) {
const rn = match (nextrune(lex)?) {
case let rn: rune =>
yield rn;
case io::EOF =>
lex.loc.1 += 1;
return lex.loc: invalid;
};
switch (rn) {
case '"' =>
break;
case '\\' =>
const rn = scan_escape(lex)?;
memio::appendrune(&lex.strbuf, rn)!;
case =>
if (iscntrl(rn)) {
return lex.loc: invalid;
};
memio::appendrune(&lex.strbuf, rn)!;
};
};
return memio::string(&lex.strbuf)!;
};
fn scan_escape(lex: *lexer) (rune | error) = {
const rn = match (nextrune(lex)?) {
case let rn: rune =>
yield rn;
case io::EOF =>
return lex.loc: invalid;
};
switch (rn) {
case '\"' =>
return '\"';
case '\\' =>
return '\\';
case '/' =>
return '/';
case 'b' =>
return '\b';
case 'f' =>
return '\f';
case 'n' =>
return '\n';
case 'r' =>
return '\r';
case 't' =>
return '\t';
case 'u' =>
let buf: [4]u8 = [0...];
match (io::readall(lex.src, buf)?) {
case io::EOF =>
return lex.loc: invalid;
case size =>
yield;
};
const s = match (strings::fromutf8(buf)) {
case let s: str =>
yield s;
case =>
return lex.loc: invalid;
};
match (strconv::stou32(s, strconv::base::HEX)) {
case let u: u32 =>
lex.loc.1 += 4;
return u: rune;
case =>
return lex.loc: invalid;
};
case =>
return lex.loc: invalid;
};
};
// Gets the next rune from the lexer.
fn nextrune(lex: *lexer) (rune | io::EOF | error) = {
if (lex.rb is rune) {
lex.prevrloc = lex.loc;
const r = lex.rb as rune;
lex.rb = void;
if (r == '\n') {
lex.loc = (lex.loc.0 + 1, 0);
} else {
lex.loc.1 += 1;
};
return r;
};
match (bufio::read_rune(lex.src)) {
case let err: io::error =>
return err;
case utf8::invalid =>
return lex.loc: invalid;
case io::EOF =>
return io::EOF;
case let rn: rune =>
lex.prevrloc = lex.loc;
if (rn == '\n') {
lex.loc = (lex.loc.0 + 1, 0);
} else {
lex.loc.1 += 1;
};
return rn;
};
};
// Like nextrune but skips whitespace.
fn nextrunews(lex: *lexer) (rune | io::EOF | error) = {
for (true) {
match (nextrune(lex)?) {
case let rn: rune =>
if (isspace(rn)) {
continue;
};
return rn;
case io::EOF =>
return io::EOF;
};
};
};
fn unget(lex: *lexer, r: rune) void = {
assert(lex.rb is void);
lex.rb = r;
lex.loc = lex.prevrloc;
};
fn iscntrl(r: rune) bool = r: u32 < 0x20;
fn isspace(r: rune) bool = ascii::isspace(r) && r != '\f';

148
vendor/hare-json/encoding/json/load.ha vendored Normal file
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use memio;
use io;
use strings;
use types;
// Options for [[load]].
export type load_option = nestlimit;
// The maximum number of nested objects or arrays that can be entered before
// erroring out.
export type nestlimit = uint;
// Parses a JSON value from the given [[io::handle]], returning the value or an
// error. The return value is allocated on the heap; use [[finish]] to free it
// up when you're done using it.
//
// By default, this function assumes non-antagonistic inputs, and does not limit
// recursion depth or memory usage. You may want to set a custom [[nestlimit]],
// or incorporate an [[io::limitreader]] or similar. Alternatively, you can use
// the JSON lexer ([[lex]]) directly if dealing with potentially malicious
// inputs.
export fn load(src: io::handle, opts: load_option...) (value | error) = {
let limit = types::UINT_MAX;
for (let i = 0z; i < len(opts); i += 1) {
limit = opts[i]: nestlimit: uint;
};
const lex = newlexer(src);
defer close(&lex);
return _load(&lex, 0, limit);
};
// Parses a JSON value from the given string, returning the value or an error.
// The return value is allocated on the heap; use [[finish]] to free it up when
// you're done using it.
//
// See the documentation for [[load]] for information on dealing with
// potentially malicious inputs.
export fn loadstr(input: str, opts: load_option...) (value | error) = {
let src = memio::fixed(strings::toutf8(input));
return load(&src, opts...);
};
fn _load(lexer: *lexer, level: uint, limit: uint) (value | error) = {
const tok = mustscan(lexer)?;
match (tok) {
case _null =>
return _null;
case let b: bool =>
return b;
case let f: f64 =>
return f;
case let s: str =>
return strings::dup(s);
case arraystart =>
if (level == limit) {
return limitreached;
};
return _load_array(lexer, level + 1, limit);
case objstart =>
if (level == limit) {
return limitreached;
};
return _load_obj(lexer, level + 1, limit);
case (arrayend | objend | colon | comma) =>
return lexer.loc: invalid;
};
};
fn _load_array(lexer: *lexer, level: uint, limit: uint) (value | error) = {
let success = false;
let array: []value = [];
defer if (!success) finish(array);
let tok = mustscan(lexer)?;
match (tok) {
case arrayend =>
success = true;
return array;
case =>
unlex(lexer, tok);
};
for (true) {
append(array, _load(lexer, level, limit)?);
tok = mustscan(lexer)?;
match (tok) {
case comma => void;
case arrayend => break;
case =>
return lexer.loc: invalid;
};
};
success = true;
return array;
};
fn _load_obj(lexer: *lexer, level: uint, limit: uint) (value | error) = {
let success = false;
let obj = newobject();
defer if (!success) finish(obj);
let tok = mustscan(lexer)?;
match (tok) {
case objend =>
success = true;
return obj;
case =>
unlex(lexer, tok);
};
for (true) {
let tok = mustscan(lexer)?;
const key = match (tok) {
case let s: str =>
yield strings::dup(s);
case =>
return lexer.loc: invalid;
};
defer free(key);
tok = mustscan(lexer)?;
if (!(tok is colon)) {
return lexer.loc: invalid;
};
put(&obj, key, _load(lexer, level, limit)?);
tok = mustscan(lexer)?;
match (tok) {
case comma => void;
case objend => break;
case =>
return lexer.loc: invalid;
};
};
success = true;
return obj;
};
fn mustscan(lexer: *lexer) (token | error) = {
match (lex(lexer)?) {
case io::EOF =>
lexer.loc.1 += 1;
return lexer.loc: invalid;
case let tok: token =>
return tok;
};
};

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// A compiled JSONPath query.
export type query = []segment;
export type segment_type = enum {
CHILD,
DESCENDANT,
};
export type segment = struct {
stype: segment_type,
selector: selector,
};
export type selector = (str | wild | index | slice | filter);
export type wild = void;
export type index = int;
export type slice = struct {
start: (int | void),
end: (int | void),
step: (int | void),
};
export type filter = void; // TODO

50
vendor/hare-json/encoding/json/types.ha vendored Normal file
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// License: MPL-2.0
// (c) 2022 Drew DeVault <sir@cmpwn.com>
use fmt;
use io;
// An invalid JSON token was encountered at this location (line, column).
export type invalid = !(uint, uint);
// The maximum nesting limit was reached.
export type limitreached = !void;
// A tagged union of all possible errors returned from this module.
export type error = !(invalid | limitreached | io::error);
// The JSON null value.
export type _null = void;
// The '[' token, signaling the start of a JSON array.
export type arraystart = void;
// The ']' token, signaling the end of a JSON array.
export type arrayend = void;
// The '{' token, signaling the start of a JSON object.
export type objstart = void;
// The '}' token, signaling the end of a JSON object.
export type objend = void;
// The ':' token.
export type colon = void;
// The ',' token.
export type comma = void;
// All tokens which can be returned from the JSON tokenizer.
export type token = (arraystart | arrayend | objstart |
objend | colon | comma | str | f64 | bool | _null);
// Converts an [[error]] into a human-friendly string.
export fn strerror(err: error) const str = {
static let buf: [53]u8 = [0...];
match (err) {
case let err: invalid =>
return fmt::bsprintf(buf,
"{}:{}: Invalid JSON token encountered", err.0, err.1);
case let err: io::error =>
return io::strerror(err);
};
};

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vendor/hare-json/encoding/json/value.ha vendored Normal file
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// License: MPL-2.0
// (c) 2022 Drew DeVault <sir@cmpwn.com>
use hash::fnv;
use strings;
// TODO: Resize table as appropriate
export def OBJECT_BUCKETS: size = 32;
export type object = struct {
buckets: [OBJECT_BUCKETS][](str, value),
count: size,
};
// A JSON value.
export type value = (f64 | str | bool | _null | []value | object);
// Initializes a new (empty) JSON object. Call [[finish]] to free associated
// resources when you're done using it.
export fn newobject() object = {
return object { ... };
};
// Gets a value from a JSON object. The return value is borrowed from the
// object.
export fn get(obj: *object, key: str) (*value | void) = {
const hash = fnv::string(key);
const bucket = &obj.buckets[hash % len(obj.buckets)];
for (let i = 0z; i < len(bucket); i += 1) {
if (bucket[i].0 == key) {
return &bucket[i].1;
};
};
};
// Sets a value in a JSON object. The key and value will be duplicated.
export fn set(obj: *object, key: const str, val: const value) void = {
put(obj, key, dup(val));
};
// Sets a value in a JSON object. The key will be duplicated. The object will
// assume ownership over the value, without duplicating it.
export fn put(obj: *object, key: const str, val: const value) void = {
const hash = fnv::string(key);
const bucket = &obj.buckets[hash % len(obj.buckets)];
for (let i = 0z; i < len(bucket); i += 1) {
if (bucket[i].0 == key) {
finish(bucket[i].1);
bucket[i].1 = val;
return;
};
};
obj.count += 1;
append(bucket, (strings::dup(key), val));
};
// Deletes values from a JSON object, if they are present.
export fn del(obj: *object, keys: const str...) void = {
for (let i = 0z; i < len(keys); i += 1) {
match (take(obj, keys[i])) {
case let val: value =>
finish(val);
case void => void;
};
};
};
// Deletes a key from a JSON object, returning its previous value, if any.
// The caller is responsible for freeing the value.
export fn take(obj: *object, key: const str) (value | void) = {
const hash = fnv::string(key);
const bucket = &obj.buckets[hash % len(obj.buckets)];
for (let i = 0z; i < len(bucket); i += 1) {
if (bucket[i].0 == key) {
obj.count -= 1;
free(bucket[i].0);
const val = bucket[i].1;
delete(bucket[i]);
return val;
};
};
};
// Clears all values from a JSON object, leaving it empty.
export fn reset(obj: *object) void = {
let it = iter(obj);
for (true) match (next(&it)) {
case void =>
break;
case let v: (const str, const *value) =>
del(obj, v.0);
};
};
// Returns the number of key/value pairs in a JSON object.
export fn count(obj: *object) size = {
return obj.count;
};
export type iterator = struct {
obj: *object,
i: size,
j: size,
};
// Creates an iterator that enumerates over the key/value pairs in an
// [[object]].
export fn iter(obj: *object) iterator = {
return iterator { obj = obj, ... };
};
// Returns the next key/value pair from this iterator, or void if none remain.
export fn next(iter: *iterator) ((const str, const *value) | void) = {
for (iter.i < len(iter.obj.buckets); iter.i += 1) {
const bucket = &iter.obj.buckets[iter.i];
for (iter.j < len(bucket)) {
const key = bucket[iter.j].0;
const val = &bucket[iter.j].1;
iter.j += 1;
return (key, val);
};
iter.j = 0;
};
};
// Duplicates a JSON value. The caller must pass the return value to [[finish]]
// to free associated resources when they're done using it.
export fn dup(val: value) value = {
match (val) {
case let s: str =>
return strings::dup(s);
case let v: []value =>
let new: []value = alloc([], len(v));
for (let i = 0z; i < len(v); i += 1) {
append(new, dup(v[i]));
};
return new;
case let o: object =>
let new = newobject();
const i = iter(&o);
for (true) {
const pair = match (next(&i)) {
case void =>
break;
case let pair: (const str, const *value) =>
yield pair;
};
set(&new, pair.0, *pair.1);
};
return new;
case =>
return val;
};
};
// Checks two JSON values for equality.
export fn equal(a: value, b: value) bool = {
match (a) {
case _null =>
return b is _null;
case let a: bool =>
return b is bool && a == b as bool;
case let a: f64 =>
return b is f64 && a == b as f64;
case let a: str =>
return b is str && a == b as str;
case let a: []value =>
if (!(b is []value)) return false;
const b = b as []value;
if (len(a) != len(b)) return false;
for (let i = 0z; i < len(a); i += 1) {
if (!equal(a[i], b[i])) {
return false;
};
};
return true;
case let a: object =>
if (!(b is object)) return false;
let b = b as object;
if (count(&a) != count(&b)) {
return false;
};
let a = iter(&a);
for (true) match (next(&a)) {
case let a: (const str, const *value) =>
match (get(&b, a.0)) {
case let b: *value =>
if (!equal(*a.1, *b)) {
return false;
};
case void => return false;
};
case void => break;
};
return true;
};
};
// Frees state associated with a JSON value.
export fn finish(val: value) void = {
match (val) {
case let s: str =>
free(s);
case let v: []value =>
for (let i = 0z; i < len(v); i += 1) {
finish(v[i]);
};
free(v);
case let o: object =>
for (let i = 0z; i < len(o.buckets); i += 1) {
const bucket = &o.buckets[i];
for (let j = 0z; j < len(bucket); j += 1) {
free(bucket[j].0);
finish(bucket[j].1);
};
free(*bucket);
};
case => void;
};
};

21
vendor/hare-logfmt/LICENSE vendored Normal file
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@ -0,0 +1,21 @@
MIT License
Copyright (c) 2022 Blain Smith
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

28
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.POSIX:
.SUFFIXES:
HARE=hare
HAREFLAGS=
DESTDIR=
PREFIX=/usr/local
SRCDIR=$(PREFIX)/src
HARESRCDIR=$(SRCDIR)/hare
THIRDPARTYDIR=$(HARESRCDIR)/third-party
all:
# no-op
clean:
# no-op
check:
$(HARE) test
install:
mkdir -p $(DESTDIR)$(THIRDPARTYDIR)/log/logfmt
install -m644 * $(DESTDIR)$(THIRDPARTYDIR)
uninstall:
rm -rf $(DESTDIR)$(THIRDPARTYDIR)/log/logfmt
.PHONY: all clean check install uninstall

45
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# hare-logfmt
A logfmt logger that can be used in [`log::setlogger(*logger) void`](https://docs.harelang.org/log#setlogger) in Hare.
## Usage
```hare
use logfmt;
use log;
export fn main() void = {
// create an instance of the logger
let l = logfmt::new(os::stderr);
// set the global logger to the logfmt logger
log::setlogger(&l);
// use the normal log::println function
log::println("request_uri", "/", "method", "POST", "user_id", 123);
log::println("request_uri", "/sign-in", "method", "GET");
log::println("request_uri", "/dashboard", "method", "GET", "user_id", 123);
};
```
**Output**
```console
ts=2022-05-12T09:36:27-0400 request_uri=/ method=POST user_id=123
ts=2022-05-12T09:42:27-0400 request_uri=/sign-in method=GET
ts=2022-05-12T09:52:10-0400 request_uri=/dashboard method=GET user_id=123
```
You can also run `haredoc` to read the module documentation.
```console
> haredoc
// Implements the log::logger for outputting logs in Logfmt format.
type logfmtlogger = struct {
log::logger,
handle: io::handle,
};
// creates a new instace of logfmtlogger to be use with [[log::setlogger]].
fn new(handle: io::handle) logfmtlogger;
```

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vendor/hare-logfmt/log/logfmt/+test.ha vendored Normal file
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use log;
use io;
use os;
use strings;
use fmt;
@test fn logfmt() void = {
let s = teststream_open();
let l = new(&s);
log::setlogger(&l);
log::println("request_uri", "/", "method", "POST", "user_id", 123);
let sbuf = strings::fromutf8(s.buf)!;
assert(strings::contains(sbuf, "request_uri=/ method=POST user_id=123"));
free(sbuf);
};
const teststream_vtable: io::vtable = io::vtable {
reader = &teststream_read,
writer = &teststream_write,
...
};
type teststream = struct {
stream: io::stream,
buf: []u8,
};
fn teststream_open() teststream = teststream {
stream = &teststream_vtable,
...
};
fn teststream_read(s: *io::stream, buf: []u8) (size | io::EOF | io::error) = {
let stream = s: *teststream;
buf = stream.buf;
return len(buf);
};
fn teststream_write(s: *io::stream, buf: const []u8) (size | io::error) = {
let stream = s: *teststream;
append(stream.buf, buf...);
return len(buf);
};

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use io;
use log;
use fmt;
use time::date;
use os;
use encoding::utf8;
use strings;
// Implements the log::logger for outputting logs in Logfmt format.
export type logfmtlogger = struct {
log::logger,
handle: io::handle,
};
// creates a new instace of logfmtlogger to be use with [[log::setlogger]].
export fn new(handle: io::handle) logfmtlogger = {
return logfmtlogger {
println = &log_println,
printfln = &log_printfln,
handle = handle,
};
};
fn log_println(logger: *log::logger, fields: fmt::formattable...) void = {
const logger = logger: *logfmtlogger;
assert(logger.println == &log_println);
const now = date::now();
fmt::fprint(logger.handle, "ts="): void;
date::format(logger.handle, date::RFC3339, &now): void;
fmt::fprint(logger.handle, " "): void;
for (let i = 0z; i < len(fields); i+= 1) {
if (i % 2 == 0) {
fmt::fprint(logger.handle, fields[i]): void;
fmt::fprint(logger.handle, "="): void;
} else {
fmt::fprint(logger.handle, fields[i]): void;
fmt::fprint(logger.handle, " "): void;
};
};
fmt::fprintln(logger.handle, ""): void;
};
fn log_printfln(logger: *log::logger, fmt: str, fields: fmt::field...) void = {
const logger = logger: *logfmtlogger;
assert(logger.printfln == &log_printfln);
const now = date::now();
fmt::fprint(logger.handle, "ts="): void;
date::format(logger.handle, date::RFC3339, &now): void;
fmt::fprint(logger.handle, " "): void;
for (let i = 0z; i < len(fields); i+= 1) {
if (i % 2 == 0) {
fmt::fprintf(logger.handle, "{}", fields[i]): void;
fmt::fprint(logger.handle, "="): void;
} else {
fmt::fprintf(logger.handle, "{}", fields[i]): void;
fmt::fprint(logger.handle, " "): void;
};
};
fmt::fprintln(logger.handle, ""): void;
};