/**************************************************************************/
/* library_godot_fetch.js */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
const GodotFetch = {
$GodotFetch__deps: ['$IDHandler', '$GodotRuntime'],
$GodotFetch: {
onread: function (id, result) {
const obj = IDHandler.get(id);
if (!obj) {
return;
}
if (result.value) {
obj.chunks.push(result.value);
}
obj.reading = false;
obj.done = result.done;
},
onresponse: function (id, response) {
const obj = IDHandler.get(id);
if (!obj) {
return;
}
let chunked = false;
response.headers.forEach(function (value, header) {
const v = value.toLowerCase().trim();
const h = header.toLowerCase().trim();
if (h === 'transfer-encoding' && v === 'chunked') {
chunked = true;
}
});
obj.status = response.status;
obj.response = response;
obj.reader = response.body.getReader();
obj.chunked = chunked;
},
onerror: function (id, err) {
GodotRuntime.error(err);
const obj = IDHandler.get(id);
if (!obj) {
return;
}
obj.error = err;
},
create: function (method, url, headers, body) {
const obj = {
request: null,
response: null,
reader: null,
error: null,
done: false,
reading: false,
status: 0,
chunks: [],
};
const id = IDHandler.add(obj);
const init = {
method: method,
headers: headers,
body: body,
};
obj.request = fetch(url, init);
obj.request.then(GodotFetch.onresponse.bind(null, id)).catch(GodotFetch.onerror.bind(null, id));
return id;
},
free: function (id) {
const obj = IDHandler.get(id);
if (!obj) {
return;
}
IDHandler.remove(id);
if (!obj.request) {
return;
}
// Try to abort
obj.request.then(function (response) {
response.abort();
}).catch(function (e) { /* nothing to do */ });
},
read: function (id) {
const obj = IDHandler.get(id);
if (!obj) {
return;
}
if (obj.reader && !obj.reading) {
if (obj.done) {
obj.reader = null;
return;
}
obj.reading = true;
obj.reader.read().then(GodotFetch.onread.bind(null, id)).catch(GodotFetch.onerror.bind(null, id));
}
},
},
godot_js_fetch_create__proxy: 'sync',
godot_js_fetch_create__sig: 'iiiiiii',
godot_js_fetch_create: function (p_method, p_url, p_headers, p_headers_size, p_body, p_body_size) {
const method = GodotRuntime.parseString(p_method);
const url = GodotRuntime.parseString(p_url);
const headers = GodotRuntime.parseStringArray(p_headers, p_headers_size);
const body = p_body_size ? GodotRuntime.heapSlice(HEAP8, p_body, p_body_size) : null;
return GodotFetch.create(method, url, headers.map(function (hv) {
const idx = hv.indexOf(':');
if (idx <= 0) {
return [];
}
return [
hv.slice(0, idx).trim(),
hv.slice(idx + 1).trim(),
];
}).filter(function (v) {
return v.length === 2;
}), body);
},
godot_js_fetch_state_get__proxy: 'sync',
godot_js_fetch_state_get__sig: 'ii',
godot_js_fetch_state_get: function (p_id) {
const obj = IDHandler.get(p_id);
if (!obj) {
return -1;
}
if (obj.error) {
return -1;
}
if (!obj.response) {
return 0;
}
if (obj.reader) {
return 1;
}
if (obj.done) {
return 2;
}
return -1;
},
godot_js_fetch_http_status_get__proxy: 'sync',
godot_js_fetch_http_status_get__sig: 'ii',
godot_js_fetch_http_status_get: function (p_id) {
const obj = IDHandler.get(p_id);
if (!obj || !obj.response) {
return 0;
}
return obj.status;
},
godot_js_fetch_read_headers__proxy: 'sync',
godot_js_fetch_read_headers__sig: 'iiii',
godot_js_fetch_read_headers: function (p_id, p_parse_cb, p_ref) {
const obj = IDHandler.get(p_id);
if (!obj || !obj.response) {
return 1;
}
const cb = GodotRuntime.get_func(p_parse_cb);
const arr = [];
obj.response.headers.forEach(function (v, h) {
arr.push(`${h}:${v}`);
});
const c_ptr = GodotRuntime.allocStringArray(arr);
cb(arr.length, c_ptr, p_ref);
GodotRuntime.freeStringArray(c_ptr, arr.length);
return 0;
},
godot_js_fetch_read_chunk__proxy: 'sync',
godot_js_fetch_read_chunk__sig: 'iiii',
godot_js_fetch_read_chunk: function (p_id, p_buf, p_buf_size) {
const obj = IDHandler.get(p_id);
if (!obj || !obj.response) {
return 0;
}
let to_read = p_buf_size;
const chunks = obj.chunks;
while (to_read && chunks.length) {
const chunk = obj.chunks[0];
if (chunk.length > to_read) {
GodotRuntime.heapCopy(HEAP8, chunk.slice(0, to_read), p_buf);
chunks[0] = chunk.slice(to_read);
to_read = 0;
} else {
GodotRuntime.heapCopy(HEAP8, chunk, p_buf);
to_read -= chunk.length;
chunks.pop();
}
}
if (!chunks.length) {
GodotFetch.read(p_id);
}
return p_buf_size - to_read;
},
godot_js_fetch_is_chunked__proxy: 'sync',
godot_js_fetch_is_chunked__sig: 'ii',
godot_js_fetch_is_chunked: function (p_id) {
const obj = IDHandler.get(p_id);
if (!obj || !obj.response) {
return -1;
}
return obj.chunked ? 1 : 0;
},
godot_js_fetch_free__proxy: 'sync',
godot_js_fetch_free__sig: 'vi',
godot_js_fetch_free: function (id) {
GodotFetch.free(id);
},
};
autoAddDeps(GodotFetch, '$GodotFetch');
mergeInto(LibraryManager.library, GodotFetch);
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