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lib.mo
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import Array "mo:base/Array";
import Blob "mo:base/Blob";
import Cycles "mo:base/ExperimentalCycles";
import Iter "mo:base/Iter";
import Nat "mo:base/Nat";
import Nat32 "mo:base/Nat32";
import Nat64 "mo:base/Nat64";
import Option "mo:base/Option";
import Principal "mo:base/Principal";
import Text "mo:base/Text";
import Buffer "mo:base/Buffer";
import AssetTypes "../CanisterAssets/types";
import Env "../Env";
import ExtCore "../toniq-labs/ext/Core";
import MarketplaceTypes "../Marketplace/types";
import Types "types";
import Utils "../utils";
module {
public class HttpHandler(this : Principal, deps : Types.Dependencies, consts : Types.Constants) {
/********************
* PUBLIC INTERFACE *
********************/
public func http_request_streaming_callback(token : Types.HttpStreamingCallbackToken) : Types.HttpStreamingCallbackResponse {
switch (Utils.natFromText(token.key)) {
case null return { body = Blob.fromArray([]); token = null };
case (?assetid) {
let asset : AssetTypes.Asset = deps._Assets.get(assetid);
let res = _streamContent(token.key, token.index, asset.payload.data);
return {
body = res.0;
token = res.1;
};
};
};
};
public func http_request(request : Types.HttpRequest) : Types.HttpResponse {
let path = Iter.toArray(Text.tokens(request.url, #text("/")));
switch (_getParam(request.url, "tokenid")) {
case (?tokenid) {
// start custom
// we assume the placeholder is stored in index 0
// and thus uploaded first
if (Env.delayedReveal and not deps._Shuffle.isShuffled()) {
return _processFile(Nat.toText(0), deps._Assets.get(0).payload);
};
// end custom
switch (deps._Tokens.getTokenData(tokenid)) {
case (?metadata) {
let assetid : Nat = Nat32.toNat(Utils.blobToNat32(metadata));
let asset : AssetTypes.Asset = deps._Assets.get(assetid);
// start custom
switch (_processAsset(request, asset)) {
case (?response) {
return response;
};
case (null) {};
};
// end custom
return _processFile(Nat.toText(assetid), asset.payload);
};
case (_) {};
};
};
case (_) {};
};
switch (_getParam(request.url, "asset")) {
case (?atext) {
switch (Utils.natFromText(atext)) {
case (?assetid) {
let asset : AssetTypes.Asset = deps._Assets.get(assetid);
// start custom
switch (_processAsset(request, asset)) {
case (?response) {
return response;
};
case (null) {};
};
// end custom
return _processFile(Nat.toText(assetid), asset.payload);
};
case (_) {};
};
};
case (_) {};
};
/**********************
* TOKEN INDEX LOOKUP *
**********************/
// check if there's only on "argument" to it
if (path.size() == 1) {
let parts = Iter.toArray(Text.split(path[0], #text("?")));
// try and convert it to a Nat from Text
switch (Utils.natFromText(parts[0])) {
// if that works, use that
case (?tokenIndex) {
switch (deps._Tokens.getTokenDataFromIndex(Nat32.fromNat(tokenIndex))) {
case (?assetIdBlob) {
let assetid : Nat = Nat32.toNat(Utils.blobToNat32(assetIdBlob));
let asset : AssetTypes.Asset = deps._Assets.get(assetid);
// start custom
switch (_processAsset(request, asset)) {
case (?response) {
return response;
};
case (null) {};
};
// end custom
return _processFile(Nat.toText(assetid), asset.payload);
};
case (_) {};
};
};
case (_) {};
};
};
// Just show index
var soldValue : Nat = Nat64.toNat(
Array.foldLeft<MarketplaceTypes.Transaction, Nat64>(
Buffer.toArray(deps._Marketplace.getTransactions()),
0,
func(b : Nat64, a : MarketplaceTypes.Transaction) : Nat64 {
b + a.price;
},
),
);
var avg : Nat = if (deps._Marketplace.transactionsSize() > 0) {
soldValue / deps._Marketplace.transactionsSize();
} else {
0;
};
var whitelistTiersText = "";
for (whitelistTier in Env.whitelistTiers.vals()) {
whitelistTiersText #= whitelistTier.name # " " # _displayICP(Nat64.toNat(whitelistTier.price)) # "start: " # debug_show (whitelistTier.slot.start) # ", end: " # debug_show (whitelistTier.slot.end) # "; ";
};
return {
status_code = 200;
headers = [("content-type", "text/plain")];
body = Text.encodeUtf8(
Env.collectionName # "\n" # "---\n"
# "Cycle Balance: ~" # debug_show (Cycles.balance() / 1000000000000) # "T\n"
# "Minted NFTs: " # debug_show (deps._Tokens.getNextTokenId()) # "\n"
# "Assets: " # debug_show (deps._Assets.size()) # "\n" # "---\n"
# "Whitelist Tiers: " # whitelistTiersText # "\n"
# "Total to sell: " # debug_show (deps._Sale.getTotalToSell()) # "\n"
# "Remaining: " # debug_show (deps._Sale.availableTokens()) # "\n"
# "Sold: " # debug_show (deps._Sale.getSold()) # "\n"
# "Sold (ICP): " # _displayICP(Nat64.toNat(deps._Sale.soldIcp())) # "\n" # "---\n"
# "Marketplace Listings: " # debug_show (deps._Marketplace.tokenListingSize()) # "\n"
# "Sold via Marketplace: " # debug_show (deps._Marketplace.transactionsSize()) # "\n"
# "Sold via Marketplace in ICP: " # _displayICP(soldValue) # "\n"
# "Average Price ICP Via Marketplace: " # _displayICP(avg) # "\n"
# "Admin: " # debug_show (consts.minter) # "\n",
);
streaming_strategy = null;
};
};
/********************
* INTERNAL METHODS *
********************/
func _processAsset(request : Types.HttpRequest, asset : AssetTypes.Asset) : ?Types.HttpResponse {
let t = switch (_getParam(request.url, "type")) {
case (?t) { t };
case (null) {
return null;
};
};
if (t == "thumbnail") {
switch (asset.thumbnail) {
case (?thumb) {
return ?{
status_code = 200;
headers = [("content-type", thumb.ctype)];
body = thumb.data[0];
streaming_strategy = null;
};
};
case (_) {};
};
} else if (t == "metadata") {
switch (asset.metadata) {
case (?metadata) {
return ?{
status_code = 200;
headers = [("content-type", metadata.ctype)];
body = metadata.data[0];
streaming_strategy = null;
};
};
case (_) {};
};
};
return null;
};
private func _processFile(tokenid : ExtCore.TokenIdentifier, file : AssetTypes.File) : Types.HttpResponse {
// start custom
let self : Principal = this;
let canisterId : Text = Principal.toText(self);
let canister = actor (canisterId) : actor {
http_request_streaming_callback : shared () -> async ();
};
// end custom
if (file.data.size() > 1) {
let (payload, token) = _streamContent(tokenid, 0, file.data);
return {
// start custom
status_code = 200;
headers = [
("Content-Type", file.ctype),
("Cache-Control", "public, max-age=15552000"),
("Access-Control-Expose-Headers", "Content-Length, Content-Range"),
("Access-Control-Allow-Methods", "GET, POST, HEAD, OPTIONS"),
("Access-Control-Allow-Origin", "*"),
("Content-Length", Env.placeholderContentLength),
("Accept-Ranges", "bytes"),
];
// end custom
body = payload;
streaming_strategy = ?#Callback({
token = Option.unwrap(token);
callback = canister.http_request_streaming_callback;
});
};
} else {
return {
status_code = 200;
headers = [("content-type", file.ctype), ("cache-control", "public, max-age=15552000")];
body = file.data[0];
streaming_strategy = null;
};
};
};
private func _streamContent(id : Text, idx : Nat, data : [Blob]) : (Blob, ?Types.HttpStreamingCallbackToken) {
let payload = data[idx];
let size = data.size();
if (idx + 1 == size) {
return (payload, null);
};
return (
payload,
?{
content_encoding = "gzip";
index = idx + 1;
sha256 = null;
key = id;
},
);
};
private func _displayICP(amt : Nat) : Text {
debug_show (amt / 100000000) # "." # debug_show ((amt % 100000000) / 1000000) # " ICP";
};
private func _getParam(url : Text, param : Text) : ?Text {
var _s : Text = url;
Iter.iterate<Text>(
Text.split(_s, #text("/")),
func(x, _i) {
_s := x;
},
);
Iter.iterate<Text>(
Text.split(_s, #text("?")),
func(x, _i) {
if (_i == 1) _s := x;
},
);
var t : ?Text = null;
var found : Bool = false;
Iter.iterate<Text>(
Text.split(_s, #text("&")),
func(x, _i) {
if (found == false) {
Iter.iterate<Text>(
Text.split(x, #text("=")),
func(y, _ii) {
if (_ii == 0) {
if (Text.equal(y, param)) found := true;
} else if (found == true) t := ?y;
},
);
};
},
);
return t;
};
};
};