1302 lines
58 KiB
Zig
1302 lines
58 KiB
Zig
const std = @import("std");
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const awshttp = @import("aws_http.zig");
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const json = @import("json.zig");
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const url = @import("url.zig");
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const case = @import("case.zig");
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const date = @import("date.zig");
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const servicemodel = @import("servicemodel.zig");
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const xml_shaper = @import("xml_shaper.zig");
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const log = std.log.scoped(.aws);
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pub const Options = struct {
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region: []const u8 = "aws-global",
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dualstack: bool = false,
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success_http_code: i64 = 200,
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client: Client,
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};
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/// Using this constant may blow up build times. Recommed using Services()
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/// function directly, e.g. const services = Services(.{.sts, .ec2, .s3, .ddb}){};
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pub const services = servicemodel.services;
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/// Get a service model by importing specific services only. As an example:
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/// const services = Services(.{.sts, .ec2, .s3, .ddb}){};
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///
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/// This will give you a constant with service data for sts, ec2, s3 and ddb only
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pub const Services = servicemodel.Services;
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pub const ClientOptions = struct {};
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pub const Client = struct {
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allocator: std.mem.Allocator,
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aws_http: awshttp.AwsHttp,
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const Self = @This();
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pub fn init(allocator: std.mem.Allocator, options: ClientOptions) !Self {
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_ = options;
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return Self{
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.allocator = allocator,
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.aws_http = try awshttp.AwsHttp.init(allocator),
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};
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}
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pub fn deinit(self: *Client) void {
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self.aws_http.deinit();
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}
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/// Calls AWS. Use a comptime request and options. For a runtime interface,
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/// see Request
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pub fn call(_: Self, comptime request: anytype, options: Options) !FullResponse(@TypeOf(request).metaInfo().action) {
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const action = @TypeOf(request).metaInfo().action;
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return Request(action).call(request, options);
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}
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};
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/// Establish an AWS request that can be later called with runtime-known
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/// parameters. If all parameters are known at comptime, the call function
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/// may be simpler to use. request parameter here refers to the action
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/// constant from the model, e.g. Request(services.lambda.list_functions)
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pub fn Request(comptime request_action: anytype) type {
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return struct {
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const ActionRequest = action.Request;
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const FullResponseType = FullResponse(action);
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const Self = @This();
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const action = request_action;
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const meta_info = ActionRequest.metaInfo();
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const service_meta = meta_info.service_metadata;
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pub fn call(request: ActionRequest, options: Options) !FullResponseType {
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// every codegenned request object includes a metaInfo function to get
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// pointers to service and action
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log.debug("call: prefix {s}, sigv4 {s}, version {s}, action {s}", .{
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Self.service_meta.endpoint_prefix,
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Self.service_meta.sigv4_name,
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Self.service_meta.version,
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action.action_name,
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});
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log.debug("proto: {s}", .{Self.service_meta.aws_protocol});
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// It seems as though there are 3 major branches of the 6 protocols.
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// 1. query/ec2_query, which are identical until you get to complex
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// structures. EC2 query does not allow us to request json though,
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// so we need to handle xml returns from this.
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// 2. *json*: These three appear identical for input (possible difference
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// for empty body serialization), but differ in error handling.
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// We're not doing a lot of error handling here, though.
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// 3. rest_xml: This is a one-off for S3, never used since
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switch (Self.service_meta.aws_protocol) {
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.query, .ec2_query => return Self.callQuery(request, options),
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.json_1_0, .json_1_1 => return Self.callJson(request, options),
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.rest_json_1, .rest_xml => return Self.callRest(request, options),
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}
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}
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/// Rest Json is the most complex and so we handle this seperately
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/// Oddly, Xml is similar enough we can route rest_xml through here as well
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fn callRest(request: ActionRequest, options: Options) !FullResponseType {
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// TODO: Does it work to merge restXml into this?
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const Action = @TypeOf(action);
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var aws_request: awshttp.HttpRequest = .{
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.method = Action.http_config.method,
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.content_type = "application/json",
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.path = Action.http_config.uri,
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.headers = try headersFor(options.client.allocator, request),
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};
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defer freeHeadersFor(options.client.allocator, request, aws_request.headers);
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log.debug("Rest method: '{s}'", .{aws_request.method});
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log.debug("Rest success code: '{d}'", .{Action.http_config.success_code});
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log.debug("Rest raw uri: '{s}'", .{Action.http_config.uri});
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aws_request.path = try buildPath(
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options.client.allocator,
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Action.http_config.uri,
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ActionRequest,
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request,
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!std.mem.eql(u8, Self.service_meta.sdk_id, "S3"),
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);
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defer options.client.allocator.free(aws_request.path);
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log.debug("Rest processed uri: '{s}'", .{aws_request.path});
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// TODO: Make sure this doesn't get escaped here for S3
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aws_request.query = try buildQuery(options.client.allocator, request);
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if (aws_request.query.len == 0) {
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if (std.mem.indexOf(u8, aws_request.path, "?")) |inx| {
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log.debug("Detected query in path. Adjusting", .{});
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// Sometimes (looking at you, s3), the uri in the model
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// has a query string shoved into it. If that's the case,
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// we need to parse and straighten this all out
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const orig_path = aws_request.path; // save as we'll need to dealloc
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const orig_query = aws_request.query; // save as we'll need to dealloc
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// We need to chop the query off because apparently the other one whacks the
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// query string. TODO: RTFM on zig to figure out why
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aws_request.query = try options.client.allocator.dupe(u8, aws_request.path[inx..]);
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aws_request.path = try options.client.allocator.dupe(u8, aws_request.path[0..inx]);
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// log.debug("inx: {d}\n\tnew path: {s}\n\tnew query: {s}", .{ inx, aws_request.path, aws_request.query });
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options.client.allocator.free(orig_path);
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options.client.allocator.free(orig_query);
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}
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}
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log.debug("Rest query: '{s}'", .{aws_request.query});
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defer options.client.allocator.free(aws_request.query);
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// We don't know if we need a body...guessing here, this should cover most
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var buffer = std.ArrayList(u8).init(options.client.allocator);
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defer buffer.deinit();
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var nameAllocator = std.heap.ArenaAllocator.init(options.client.allocator);
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defer nameAllocator.deinit();
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if (Self.service_meta.aws_protocol == .rest_json_1) {
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if (std.mem.eql(u8, "PUT", aws_request.method) or std.mem.eql(u8, "POST", aws_request.method)) {
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try json.stringify(request, .{ .whitespace = .{} }, buffer.writer());
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}
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}
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aws_request.body = buffer.items;
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if (Self.service_meta.aws_protocol == .rest_xml) {
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if (std.mem.eql(u8, "PUT", aws_request.method) or std.mem.eql(u8, "POST", aws_request.method)) {
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if (@hasDecl(ActionRequest, "http_payload")) {
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// We will assign the body to the value of the field denoted by
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// the http_payload declaration on the request type.
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// Hopefully these will always be ?[]const u8, otherwise
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// we should see a compile error on this line
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aws_request.body = @field(request, ActionRequest.http_payload).?;
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} else {
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return error.NotImplemented;
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}
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}
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}
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return try Self.callAws(aws_request, .{
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.success_http_code = Action.http_config.success_code,
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.region = options.region,
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.dualstack = options.dualstack,
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.client = options.client,
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});
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}
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/// Calls using one of the json protocols (json_1_0, json_1_1)
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fn callJson(request: ActionRequest, options: Options) !FullResponseType {
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const target =
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try std.fmt.allocPrint(options.client.allocator, "{s}.{s}", .{
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Self.service_meta.name,
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action.action_name,
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});
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defer options.client.allocator.free(target);
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var buffer = std.ArrayList(u8).init(options.client.allocator);
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defer buffer.deinit();
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// The transformer needs to allocate stuff out of band, but we
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// can guarantee we don't need the memory after this call completes,
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// so we'll use an arena allocator to whack everything.
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// TODO: Determine if sending in null values is ok, or if we need another
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// tweak to the stringify function to exclude. According to the
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// smithy spec, "A null value MAY be provided or omitted
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// for a boxed member with no observable difference." But we're
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// seeing a lot of differences here between spec and reality
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//
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var nameAllocator = std.heap.ArenaAllocator.init(options.client.allocator);
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defer nameAllocator.deinit();
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try json.stringify(request, .{ .whitespace = .{} }, buffer.writer());
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var content_type: []const u8 = undefined;
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switch (Self.service_meta.aws_protocol) {
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.json_1_0 => content_type = "application/x-amz-json-1.0",
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.json_1_1 => content_type = "application/x-amz-json-1.1",
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else => unreachable,
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}
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return try Self.callAws(.{
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.query = "",
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.body = buffer.items,
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.content_type = content_type,
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.headers = @constCast(&[_]awshttp.Header{.{ .name = "X-Amz-Target", .value = target }}),
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}, options);
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}
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// Call using query protocol. This is documented as an XML protocol, but
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// throwing a JSON accept header seems to work. EC2Query is very simliar to
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// Query, so we'll handle both here. Realistically we probably don't effectively
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// handle lists and maps properly anyway yet, so we'll go for it and see
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// where it breaks. PRs and/or failing test cases appreciated.
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fn callQuery(request: ActionRequest, options: Options) !FullResponseType {
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var buffer = std.ArrayList(u8).init(options.client.allocator);
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defer buffer.deinit();
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const writer = buffer.writer();
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try url.encode(options.client.allocator, request, writer, .{
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.field_name_transformer = &queryFieldTransformer,
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});
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const continuation = if (buffer.items.len > 0) "&" else "";
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const query = if (Self.service_meta.aws_protocol == .query)
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try std.fmt.allocPrint(options.client.allocator, "", .{})
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else // EC2
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try std.fmt.allocPrint(options.client.allocator, "?Action={s}&Version={s}", .{
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action.action_name,
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Self.service_meta.version,
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});
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defer options.client.allocator.free(query);
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// Note: EC2 avoided the Action={s}&Version={s} in the body, but it's
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// but it's required, so I'm not sure why that code was put in
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// originally?
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const body =
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try std.fmt.allocPrint(options.client.allocator, "Action={s}&Version={s}{s}{s}", .{
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action.action_name,
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Self.service_meta.version,
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continuation,
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buffer.items,
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});
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defer options.client.allocator.free(body);
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return try Self.callAws(.{
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.query = query,
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.body = body,
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.content_type = "application/x-www-form-urlencoded",
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}, options);
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}
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fn callAws(aws_request: awshttp.HttpRequest, options: Options) !FullResponseType {
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const response = try options.client.aws_http.callApi(
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Self.service_meta.endpoint_prefix,
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aws_request,
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.{
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.region = options.region,
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.dualstack = options.dualstack,
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.sigv4_service_name = Self.service_meta.sigv4_name,
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},
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);
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defer response.deinit();
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if (response.response_code != options.success_http_code) {
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try reportTraffic(options.client.allocator, "Call Failed", aws_request, response, log.err);
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return error.HttpFailure;
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}
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var full_response = try getFullResponseFromBody(aws_request, response, options);
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errdefer full_response.deinit();
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// Fill in any fields that require a header. Note doing it post-facto
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// assumes all response header fields are optional, which may be incorrect
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if (@hasDecl(action.Response, "http_header")) {
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log.debug("Checking headers based on type: {s}", .{@typeName(action.Response)});
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const HeaderInfo = struct {
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name: []const u8,
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T: type,
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header_name: []const u8,
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};
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comptime var fields = [_]?HeaderInfo{null} ** std.meta.fields(@TypeOf(action.Response.http_header)).len;
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inline for (std.meta.fields(@TypeOf(action.Response.http_header)), 0..) |f, inx| {
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fields[inx] = HeaderInfo{
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.name = f.name,
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.T = @TypeOf(@field(full_response.response, f.name)),
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.header_name = @field(action.Response.http_header, f.name),
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};
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}
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inline for (fields) |f| {
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for (response.headers) |header| {
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if (std.mem.eql(u8, header.name, f.?.header_name)) {
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log.debug("Response header {s} configured for field. Setting {s} = {s}", .{ header.name, f.?.name, header.value });
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// TODO: Revisit return for this function. At the moment, there
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// is something in the compiler that is causing the inline for
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// surrounding this to start repeating elements
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//
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// https://github.com/ziglang/zig/issues/10507
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//
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// This bug is also relevant to some of the many,
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// many different methods used to try to work around:
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// https://github.com/ziglang/zig/issues/10029
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//
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// Note: issues found on zig 0.9.0
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setHeaderValue(
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options.client.allocator,
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&full_response.response,
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f.?.name,
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f.?.T,
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header.value,
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) catch |e| {
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log.err("Could not set header value: Response header {s}. Field {s}. Value {s}", .{ header.name, f.?.name, header.value });
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log.err("Error: {}", .{e});
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if (@errorReturnTrace()) |trace| {
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std.debug.dumpStackTrace(trace.*);
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}
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};
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break;
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}
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}
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}
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}
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return full_response;
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}
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fn setHeaderValue(
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allocator: std.mem.Allocator,
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response: anytype,
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comptime field_name: []const u8,
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comptime field_type: type,
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value: []const u8,
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) !void {
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// TODO: Fix this. We need to make this much more robust
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// The deal is we have to do the dupe though
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// Also, this is a memory leak atm
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if (field_type == ?[]const u8) {
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@field(response, field_name) = try allocator.dupe(u8, value);
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} else {
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@field(response, field_name) = try coerceFromString(field_type, value);
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}
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}
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fn getFullResponseFromBody(aws_request: awshttp.HttpRequest, response: awshttp.HttpResult, options: Options) !FullResponseType {
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// First, we need to determine if we care about a response at all
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// If the expected result has no fields, there's no sense in
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// doing any more work. Let's bail early
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var expected_body_field_len = std.meta.fields(action.Response).len;
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if (@hasDecl(action.Response, "http_header"))
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expected_body_field_len -= std.meta.fields(@TypeOf(action.Response.http_header)).len;
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if (@hasDecl(action.Response, "http_payload")) {
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var rc = FullResponseType{
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.response = .{},
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.response_metadata = .{
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.request_id = try requestIdFromHeaders(aws_request, response, options),
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},
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.parser_options = .{ .json = .{} },
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.raw_parsed = .{ .raw = .{} },
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.allocator = options.client.allocator,
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};
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var body_field = @field(rc.response, action.Response.http_payload);
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const BodyField = @TypeOf(body_field);
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if (BodyField == []const u8 or BodyField == ?[]const u8) {
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expected_body_field_len = 0;
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// We can't use body_field for this set - only @field will work
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@field(rc.response, action.Response.http_payload) = try options.client.allocator.dupe(u8, response.body);
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return rc;
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}
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rc.deinit();
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}
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// We don't care about the body if there are no fields we expect there...
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if (std.meta.fields(action.Response).len == 0 or expected_body_field_len == 0) {
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// ^^ This should be redundant, but is necessary. I suspect it's a compiler quirk
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//
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// Do we care if an unexpected body comes in?
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return FullResponseType{
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.response = .{},
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.response_metadata = .{
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.request_id = try requestIdFromHeaders(aws_request, response, options),
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},
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.parser_options = .{ .json = .{} },
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.raw_parsed = .{ .raw = .{} },
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.allocator = options.client.allocator,
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};
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}
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const isJson = try isJsonResponse(response.headers);
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if (!isJson) return try xmlReturn(aws_request, options, response);
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return try jsonReturn(aws_request, options, response);
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}
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fn jsonReturn(aws_request: awshttp.HttpRequest, options: Options, response: awshttp.HttpResult) !FullResponseType {
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const parser_options = json.ParseOptions{
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.allocator = options.client.allocator,
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.allow_camel_case_conversion = true, // new option
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.allow_snake_case_conversion = true, // new option
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.allow_unknown_fields = true, // new option. Cannot yet handle non-struct fields though
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.allow_missing_fields = false, // new option. Cannot yet handle non-struct fields though
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};
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// Get our possible response types. There are 3:
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//
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// 1. A result wrapped with metadata like request ID. This is ServerResponse(action)
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// 2. A "Normal" result, which starts with { "MyActionResponse": {...} }
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// 3. A "Raw" result, which is simply {...} without decoration
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const response_types = jsonResponseTypesForAction();
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// Parse the server data. Function will determine which of the three
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// responses we have, and do the right thing
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const parsed_data = try parseJsonData(response_types, response.body, options, parser_options);
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defer parsed_data.deinit();
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const parsed_response = parsed_data.parsed_response_ptr.*;
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if (response_types.NormalResponse == ServerResponse(action)) {
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// This should only apply to query results, but we're in comptime
|
|
// type land, so the only thing that matters is whether our
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// response is a ServerResponse
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//
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// Grab the first (and only) object from the data. Server shape expected to be:
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// { ActionResponse: {ActionResult: {...}, ResponseMetadata: {...} } }
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// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
// Next line of code pulls this portion
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//
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//
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// And the response property below will pull whatever is the ActionResult object
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// We can grab index [0] as structs are guaranteed by zig to be returned in the order
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|
// declared, and we're declaring in that order in ServerResponse().
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const real_response = @field(parsed_response, @typeInfo(response_types.NormalResponse).Struct.fields[0].name);
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return FullResponseType{
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.response = @field(real_response, @typeInfo(@TypeOf(real_response)).Struct.fields[0].name),
|
|
.response_metadata = .{
|
|
.request_id = try options.client.allocator.dupe(u8, real_response.ResponseMetadata.RequestId),
|
|
},
|
|
.parser_options = .{ .json = parser_options },
|
|
.raw_parsed = .{ .server = parsed_response },
|
|
.allocator = options.client.allocator,
|
|
};
|
|
} else {
|
|
// Conditions 2 or 3 (no wrapping)
|
|
return FullResponseType{
|
|
.response = parsed_response,
|
|
.response_metadata = .{
|
|
.request_id = try requestIdFromHeaders(aws_request, response, options),
|
|
},
|
|
.parser_options = .{ .json = parser_options },
|
|
.raw_parsed = .{ .raw = parsed_response },
|
|
.allocator = options.client.allocator,
|
|
};
|
|
}
|
|
}
|
|
|
|
fn xmlReturn(request: awshttp.HttpRequest, options: Options, result: awshttp.HttpResult) !FullResponseType {
|
|
// Server shape be all like:
|
|
//
|
|
// <?xml version="1.0" encoding="UTF-8"?>
|
|
// <DescribeRegionsResponse xmlns="http://ec2.amazonaws.com/doc/2016-11-15/">
|
|
// <requestId>0efe31c6-cad5-4882-b275-dfea478cf039</requestId>
|
|
// <regionInfo>
|
|
// <item>
|
|
// <regionName>eu-north-1</regionName>
|
|
// <regionEndpoint>ec2.eu-north-1.amazonaws.com</regionEndpoint>
|
|
// <optInStatus>opt-in-not-required</optInStatus>
|
|
// </item>
|
|
// </regionInfo>
|
|
// </DescribeRegionsResponse>
|
|
//
|
|
// While our stuff be like:
|
|
//
|
|
// struct {
|
|
// regions: []struct {
|
|
// region_name: []const u8,
|
|
// }
|
|
// }
|
|
//
|
|
// Big thing is that requestid, which we'll need to fetch "manually"
|
|
const xml_options = xml_shaper.ParseOptions{ .allocator = options.client.allocator };
|
|
var body: []const u8 = result.body;
|
|
var free_body = false;
|
|
if (std.mem.lastIndexOf(u8, result.body[result.body.len - 20 ..], "Response>") == null and
|
|
std.mem.lastIndexOf(u8, result.body[result.body.len - 20 ..], "Result>") == null)
|
|
{
|
|
free_body = true;
|
|
// chop the "<?xml version="1.0"?>" from the front
|
|
const start = if (std.mem.indexOf(u8, result.body, "?>")) |i| i else 0;
|
|
body = try std.fmt.allocPrint(options.client.allocator, "<ActionResponse>{s}</ActionResponse>", .{body[start..]});
|
|
}
|
|
defer if (free_body) options.client.allocator.free(body);
|
|
const parsed = try xml_shaper.parse(action.Response, body, xml_options);
|
|
errdefer parsed.deinit();
|
|
// This needs to get into FullResponseType somehow: defer parsed.deinit();
|
|
const request_id = blk: {
|
|
if (parsed.document.root.getCharData("requestId")) |elem|
|
|
break :blk try options.client.allocator.dupe(u8, elem);
|
|
break :blk try requestIdFromHeaders(request, result, options);
|
|
};
|
|
defer options.client.allocator.free(request_id);
|
|
|
|
return FullResponseType{
|
|
.response = parsed.parsed_value,
|
|
.response_metadata = .{
|
|
.request_id = try options.client.allocator.dupe(u8, request_id),
|
|
},
|
|
.parser_options = .{ .xml = xml_options },
|
|
.raw_parsed = .{ .xml = parsed },
|
|
.allocator = options.client.allocator,
|
|
};
|
|
}
|
|
const ServerResponseTypes = struct {
|
|
NormalResponse: type,
|
|
RawResponse: type,
|
|
isRawPossible: bool,
|
|
};
|
|
|
|
fn jsonResponseTypesForAction() ServerResponseTypes {
|
|
// The shape of the data coming back from the server will
|
|
// vary quite a bit based on the exact protocol being used,
|
|
// age of the service, etc. Before we parse the data, we need
|
|
// to understand what we're expecting. Because types are handled
|
|
// at comptime, we are restricted in how we handle them. They must
|
|
// be constants, so first we'll set up an unreasonable "NullType"
|
|
// we can use in our conditionals below
|
|
const NullType: type = u0;
|
|
|
|
// Next, we'll provide a "SResponse", or Server Response, for a
|
|
// "normal" return that modern AWS services provide, that includes
|
|
// meta information and a result inside it. This could be the
|
|
// response as described in our models, or it could be a wrapped
|
|
// response that's only applicable to aws_query smithy protocol
|
|
// services
|
|
const SResponse = if (Self.service_meta.aws_protocol != .query)
|
|
action.Response
|
|
else
|
|
ServerResponse(action);
|
|
|
|
// Now, we want to also establish a "SRawResponse", or a raw
|
|
// response. Some older services (like CloudFront) respect
|
|
// that we desire application/json data even though they're
|
|
// considered "rest_xml" protocol. However, they don't wrap
|
|
// anything, so we actually want to parse the only field in
|
|
// the response structure. In this case we have to manually
|
|
// create the type, parse, then set the field. For example:
|
|
//
|
|
// Response: type = struct {
|
|
// key_group_list: ?struct {...
|
|
//
|
|
// Normal responses would start parsing on the Response type,
|
|
// but raw responses need to create an instance of the response
|
|
// type, and parse "key_group_list" directly before attaching.
|
|
//
|
|
// Because we cannot change types at runtime, we need to create
|
|
// both a SResponse and SRawResponse type in anticipation of either
|
|
// scenario, then parse as appropriate later
|
|
const SRawResponse = if (Self.service_meta.aws_protocol != .query and
|
|
std.meta.fields(action.Response).len == 1)
|
|
std.meta.fields(action.Response)[0].type
|
|
else
|
|
NullType;
|
|
|
|
return .{
|
|
.NormalResponse = SResponse,
|
|
.RawResponse = SRawResponse,
|
|
.isRawPossible = SRawResponse != NullType,
|
|
};
|
|
}
|
|
|
|
fn ParsedJsonData(comptime T: type) type {
|
|
return struct {
|
|
raw_response_parsed: bool,
|
|
parsed_response_ptr: *T,
|
|
allocator: std.mem.Allocator,
|
|
|
|
const MySelf = @This();
|
|
|
|
pub fn deinit(self: MySelf) void {
|
|
// This feels like it should result in a use after free, but it
|
|
// seems to be working?
|
|
if (self.raw_response_parsed)
|
|
self.allocator.destroy(self.parsed_response_ptr);
|
|
}
|
|
};
|
|
}
|
|
|
|
fn parseJsonData(comptime response_types: ServerResponseTypes, data: []const u8, options: Options, parser_options: json.ParseOptions) !ParsedJsonData(response_types.NormalResponse) {
|
|
// Now it's time to start looking at the actual data. Job 1 will
|
|
// be to figure out if this is a raw response or wrapped
|
|
|
|
// Extract the first json key
|
|
const key = firstJsonKey(data);
|
|
const found_normal_json_response = std.mem.eql(u8, key, action.action_name ++ "Response") or
|
|
std.mem.eql(u8, key, action.action_name ++ "Result");
|
|
var raw_response_parsed = false;
|
|
var stream = json.TokenStream.init(data);
|
|
const parsed_response_ptr = blk: {
|
|
if (!response_types.isRawPossible or found_normal_json_response)
|
|
break :blk &(json.parse(response_types.NormalResponse, &stream, parser_options) catch |e| {
|
|
log.err(
|
|
\\Call successful, but unexpected response from service.
|
|
\\This could be the result of a bug or a stale set of code generated
|
|
\\service models.
|
|
\\
|
|
\\Model Type: {s}
|
|
\\
|
|
\\Response from server:
|
|
\\
|
|
\\{s}
|
|
\\
|
|
, .{ action.Response, data });
|
|
return e;
|
|
});
|
|
|
|
log.debug("Appears server has provided a raw response", .{});
|
|
raw_response_parsed = true;
|
|
const ptr = try options.client.allocator.create(response_types.NormalResponse);
|
|
@field(ptr.*, std.meta.fields(action.Response)[0].name) =
|
|
json.parse(response_types.RawResponse, &stream, parser_options) catch |e| {
|
|
log.err(
|
|
\\Call successful, but unexpected response from service.
|
|
\\This could be the result of a bug or a stale set of code generated
|
|
\\service models.
|
|
\\
|
|
\\Model Type: {s}
|
|
\\
|
|
\\Response from server:
|
|
\\
|
|
\\{s}
|
|
\\
|
|
, .{ action.Response, data });
|
|
return e;
|
|
};
|
|
break :blk ptr;
|
|
};
|
|
return ParsedJsonData(response_types.NormalResponse){
|
|
.raw_response_parsed = raw_response_parsed,
|
|
.parsed_response_ptr = @constCast(parsed_response_ptr), //TODO: why doesn't changing const->var above fix this?
|
|
.allocator = options.client.allocator,
|
|
};
|
|
}
|
|
};
|
|
}
|
|
|
|
fn coerceFromString(comptime T: type, val: []const u8) anyerror!T {
|
|
if (@typeInfo(T) == .Optional) return try coerceFromString(@typeInfo(T).Optional.child, val);
|
|
// TODO: This is terrible...fix it
|
|
switch (T) {
|
|
bool => return std.ascii.eqlIgnoreCase(val, "true"),
|
|
i64 => return parseInt(T, val) catch |e| {
|
|
log.err("Invalid string representing i64: {s}", .{val});
|
|
return e;
|
|
},
|
|
else => return val,
|
|
}
|
|
}
|
|
fn parseInt(comptime T: type, val: []const u8) !T {
|
|
const rc = std.fmt.parseInt(T, val, 10);
|
|
if (!std.meta.isError(rc)) return rc;
|
|
|
|
if (T == i64) {
|
|
return date.parseEnglishToTimestamp(val) catch |e| {
|
|
log.err("Error coercing date string '{s}' to timestamp value", .{val});
|
|
return e;
|
|
};
|
|
}
|
|
log.err("Error parsing string '{s}' to integer", .{val});
|
|
return rc;
|
|
}
|
|
|
|
fn generalAllocPrint(allocator: std.mem.Allocator, val: anytype) !?[]const u8 {
|
|
switch (@typeInfo(@TypeOf(val))) {
|
|
.Optional => if (val) |v| return generalAllocPrint(allocator, v) else return null,
|
|
.Array, .Pointer => return try std.fmt.allocPrint(allocator, "{s}", .{val}),
|
|
else => return try std.fmt.allocPrint(allocator, "{any}", .{val}),
|
|
}
|
|
}
|
|
fn headersFor(allocator: std.mem.Allocator, request: anytype) ![]awshttp.Header {
|
|
log.debug("Checking for headers to include for type {s}", .{@TypeOf(request)});
|
|
if (!@hasDecl(@TypeOf(request), "http_header")) return &[_]awshttp.Header{};
|
|
const http_header = @TypeOf(request).http_header;
|
|
const fields = std.meta.fields(@TypeOf(http_header));
|
|
log.debug("Found {d} possible custom headers", .{fields.len});
|
|
// It would be awesome to have a fixed array, but we can't because
|
|
// it depends on a runtime value based on whether these variables are null
|
|
var headers = try std.ArrayList(awshttp.Header).initCapacity(allocator, fields.len);
|
|
inline for (fields) |f| {
|
|
// Header name = value of field
|
|
// Header value = value of the field of the request based on field name
|
|
const val = @field(request, f.name);
|
|
const final_val: ?[]const u8 = try generalAllocPrint(allocator, val);
|
|
if (final_val) |v| {
|
|
headers.appendAssumeCapacity(.{
|
|
.name = @field(http_header, f.name),
|
|
.value = v,
|
|
});
|
|
}
|
|
}
|
|
return headers.toOwnedSlice();
|
|
}
|
|
|
|
fn freeHeadersFor(allocator: std.mem.Allocator, request: anytype, headers: []awshttp.Header) void {
|
|
if (!@hasDecl(@TypeOf(request), "http_header")) return;
|
|
const http_header = @TypeOf(request).http_header;
|
|
const fields = std.meta.fields(@TypeOf(http_header));
|
|
inline for (fields) |f| {
|
|
const header_name = @field(http_header, f.name);
|
|
for (headers) |h| {
|
|
if (std.mem.eql(u8, h.name, header_name)) {
|
|
allocator.free(h.value);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
allocator.free(headers);
|
|
}
|
|
|
|
fn firstJsonKey(data: []const u8) []const u8 {
|
|
const start = std.mem.indexOf(u8, data, "\"") orelse 0; // Should never be 0
|
|
if (start == 0) log.warn("Response body missing json key?!", .{});
|
|
var end = std.mem.indexOf(u8, data[start + 1 ..], "\"") orelse 0;
|
|
if (end == 0) log.warn("Response body only has one double quote?!", .{});
|
|
end = end + start + 1;
|
|
|
|
const key = data[start + 1 .. end];
|
|
log.debug("First json key: {s}", .{key});
|
|
return key;
|
|
}
|
|
fn isJsonResponse(headers: []awshttp.Header) !bool {
|
|
// EC2 ignores our accept type, but technically query protocol only
|
|
// returns XML as well. So, we'll ignore the protocol here and just
|
|
// look at the return type
|
|
var isJson: ?bool = null;
|
|
for (headers) |h| {
|
|
if (std.ascii.eqlIgnoreCase("Content-Type", h.name)) {
|
|
if (std.mem.startsWith(u8, h.value, "application/json")) {
|
|
isJson = true;
|
|
} else if (std.mem.startsWith(u8, h.value, "application/x-amz-json-1.0")) {
|
|
isJson = true;
|
|
} else if (std.mem.startsWith(u8, h.value, "application/x-amz-json-1.1")) {
|
|
isJson = true;
|
|
} else if (std.mem.startsWith(u8, h.value, "text/xml")) {
|
|
isJson = false;
|
|
} else if (std.mem.startsWith(u8, h.value, "application/xml")) {
|
|
isJson = false;
|
|
} else {
|
|
log.err("Unexpected content type: {s}", .{h.value});
|
|
return error.UnexpectedContentType;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (isJson == null) return error.ContentTypeNotFound;
|
|
return isJson.?;
|
|
}
|
|
/// Get request ID from headers. Caller responsible for freeing memory
|
|
fn requestIdFromHeaders(request: awshttp.HttpRequest, response: awshttp.HttpResult, options: Options) ![]u8 {
|
|
var rid: ?[]const u8 = null;
|
|
// This "thing" is called:
|
|
// * Host ID
|
|
// * Extended Request ID
|
|
// * Request ID 2
|
|
//
|
|
// I suspect it identifies the S3 frontend server and they are
|
|
// trying to obscure that fact. But several SDKs go with host id,
|
|
// so we'll use that
|
|
var host_id: ?[]const u8 = null;
|
|
for (response.headers) |header| {
|
|
if (std.ascii.eqlIgnoreCase(header.name, "x-amzn-requestid")) // CloudFront
|
|
rid = header.value;
|
|
if (std.ascii.eqlIgnoreCase(header.name, "x-amz-request-id")) // S3
|
|
rid = header.value;
|
|
if (std.ascii.eqlIgnoreCase(header.name, "x-amz-id-2")) // S3
|
|
host_id = header.value;
|
|
}
|
|
if (rid) |r| {
|
|
if (host_id) |h|
|
|
return try std.fmt.allocPrint(options.client.allocator, "{s}, host_id: {s}", .{ r, h });
|
|
return try options.client.allocator.dupe(u8, r);
|
|
}
|
|
try reportTraffic(options.client.allocator, "Request ID not found", request, response, log.err);
|
|
return error.RequestIdNotFound;
|
|
}
|
|
fn ServerResponse(comptime action: anytype) type {
|
|
const T = action.Response;
|
|
// NOTE: The non-standard capitalization here is used as a performance
|
|
// enhancement and to reduce allocations in json.zig. These fields are
|
|
// not (nor are they ever intended to be) exposed outside this codebase
|
|
const ResponseMetadata = struct {
|
|
RequestId: []u8,
|
|
};
|
|
const Result = @Type(.{
|
|
.Struct = .{
|
|
.layout = .Auto,
|
|
.fields = &[_]std.builtin.Type.StructField{
|
|
.{
|
|
.name = action.action_name ++ "Result",
|
|
.type = T,
|
|
.default_value = null,
|
|
.is_comptime = false,
|
|
.alignment = 0,
|
|
},
|
|
.{
|
|
.name = "ResponseMetadata",
|
|
.type = ResponseMetadata,
|
|
.default_value = null,
|
|
.is_comptime = false,
|
|
.alignment = 0,
|
|
},
|
|
},
|
|
.decls = &[_]std.builtin.Type.Declaration{},
|
|
.is_tuple = false,
|
|
},
|
|
});
|
|
return @Type(.{
|
|
.Struct = .{
|
|
.layout = .Auto,
|
|
.fields = &[_]std.builtin.Type.StructField{
|
|
.{
|
|
.name = action.action_name ++ "Response",
|
|
.type = Result,
|
|
.default_value = null,
|
|
.is_comptime = false,
|
|
.alignment = 0,
|
|
},
|
|
},
|
|
.decls = &[_]std.builtin.Type.Declaration{},
|
|
.is_tuple = false,
|
|
},
|
|
});
|
|
}
|
|
fn FullResponse(comptime action: anytype) type {
|
|
return struct {
|
|
response: action.Response,
|
|
response_metadata: struct {
|
|
request_id: []u8,
|
|
},
|
|
parser_options: union(enum) {
|
|
json: json.ParseOptions,
|
|
xml: xml_shaper.ParseOptions,
|
|
},
|
|
raw_parsed: union(enum) {
|
|
server: ServerResponse(action),
|
|
raw: action.Response,
|
|
xml: xml_shaper.Parsed(action.Response),
|
|
},
|
|
allocator: std.mem.Allocator,
|
|
|
|
const Self = @This();
|
|
pub fn deinit(self: Self) void {
|
|
switch (self.raw_parsed) {
|
|
// Server is json only (so far)
|
|
.server => json.parseFree(ServerResponse(action), self.raw_parsed.server, self.parser_options.json),
|
|
// Raw is json only (so far)
|
|
.raw => json.parseFree(action.Response, self.raw_parsed.raw, self.parser_options.json),
|
|
.xml => |xml| xml.deinit(),
|
|
}
|
|
|
|
self.allocator.free(self.response_metadata.request_id);
|
|
const Response = @TypeOf(self.response);
|
|
if (@hasDecl(Response, "http_header")) {
|
|
inline for (std.meta.fields(@TypeOf(Response.http_header))) |f| {
|
|
const field_type = @TypeOf(@field(self.response, f.name));
|
|
// TODO: Fix this. We need to make this much more robust
|
|
// The deal is we have to do the dupe though
|
|
// Also, this is a memory leak atm
|
|
if (field_type == ?[]const u8) {
|
|
if (@field(self.response, f.name) != null) {
|
|
self.allocator.free(@field(self.response, f.name).?);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (@hasDecl(Response, "http_payload")) {
|
|
var body_field = @field(self.response, Response.http_payload);
|
|
const BodyField = @TypeOf(body_field);
|
|
if (BodyField == []const u8) {
|
|
self.allocator.free(body_field);
|
|
}
|
|
if (BodyField == ?[]const u8) {
|
|
if (body_field) |f|
|
|
self.allocator.free(f);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
}
|
|
fn queryFieldTransformer(allocator: std.mem.Allocator, field_name: []const u8, options: url.EncodingOptions) anyerror![]const u8 {
|
|
_ = options;
|
|
return try case.snakeToPascal(allocator, field_name);
|
|
}
|
|
|
|
fn buildPath(
|
|
allocator: std.mem.Allocator,
|
|
raw_uri: []const u8,
|
|
comptime ActionRequest: type,
|
|
request: anytype,
|
|
encode_slash: bool,
|
|
) ![]const u8 {
|
|
var buffer = try std.ArrayList(u8).initCapacity(allocator, raw_uri.len);
|
|
// const writer = buffer.writer();
|
|
defer buffer.deinit();
|
|
var in_label = false;
|
|
var start: usize = 0;
|
|
for (raw_uri, 0..) |c, inx| {
|
|
switch (c) {
|
|
'{' => {
|
|
in_label = true;
|
|
start = inx + 1;
|
|
},
|
|
'}' => {
|
|
in_label = false;
|
|
// The label may be "greedy" (uses a '+' at the end), but
|
|
// it's not clear if that effects this processing
|
|
var end = inx;
|
|
if (raw_uri[inx - 1] == '+') end -= 1;
|
|
const replacement_label = raw_uri[start..end];
|
|
inline for (std.meta.fields(ActionRequest)) |field| {
|
|
if (std.mem.eql(u8, request.fieldNameFor(field.name), replacement_label)) {
|
|
var replacement_buffer = try std.ArrayList(u8).initCapacity(allocator, raw_uri.len);
|
|
defer replacement_buffer.deinit();
|
|
var encoded_buffer = try std.ArrayList(u8).initCapacity(allocator, raw_uri.len);
|
|
defer encoded_buffer.deinit();
|
|
const replacement_writer = replacement_buffer.writer();
|
|
// std.mem.replacementSize
|
|
try json.stringify(
|
|
@field(request, field.name),
|
|
.{},
|
|
replacement_writer,
|
|
);
|
|
const trimmed_replacement_val = std.mem.trim(u8, replacement_buffer.items, "\"");
|
|
try uriEncode(trimmed_replacement_val, encoded_buffer.writer(), encode_slash);
|
|
try buffer.appendSlice(encoded_buffer.items);
|
|
}
|
|
}
|
|
},
|
|
else => if (!in_label) {
|
|
try buffer.append(c);
|
|
} else {},
|
|
}
|
|
}
|
|
return buffer.toOwnedSlice();
|
|
}
|
|
|
|
fn uriEncode(input: []const u8, writer: anytype, encode_slash: bool) !void {
|
|
for (input) |c|
|
|
try uriEncodeByte(c, writer, encode_slash);
|
|
}
|
|
|
|
fn uriEncodeByte(char: u8, writer: anytype, encode_slash: bool) !void {
|
|
switch (char) {
|
|
'!' => _ = try writer.write("%21"),
|
|
'#' => _ = try writer.write("%23"),
|
|
'$' => _ = try writer.write("%24"),
|
|
'&' => _ = try writer.write("%26"),
|
|
'\'' => _ = try writer.write("%27"),
|
|
'(' => _ = try writer.write("%28"),
|
|
')' => _ = try writer.write("%29"),
|
|
'*' => _ = try writer.write("%2A"),
|
|
'+' => _ = try writer.write("%2B"),
|
|
',' => _ = try writer.write("%2C"),
|
|
'/' => _ = if (encode_slash) try writer.write("%2F") else try writer.write("/"),
|
|
':' => _ = try writer.write("%3A"),
|
|
';' => _ = try writer.write("%3B"),
|
|
'=' => _ = try writer.write("%3D"),
|
|
'?' => _ = try writer.write("%3F"),
|
|
'@' => _ = try writer.write("%40"),
|
|
'[' => _ = try writer.write("%5B"),
|
|
']' => _ = try writer.write("%5D"),
|
|
'%' => _ = try writer.write("%25"),
|
|
else => {
|
|
_ = try writer.writeByte(char);
|
|
},
|
|
}
|
|
}
|
|
|
|
fn buildQuery(allocator: std.mem.Allocator, request: anytype) ![]const u8 {
|
|
// query should look something like this:
|
|
// pub const http_query = .{
|
|
// .master_region = "MasterRegion",
|
|
// .function_version = "FunctionVersion",
|
|
// .marker = "Marker",
|
|
// };
|
|
var buffer = std.ArrayList(u8).init(allocator);
|
|
const writer = buffer.writer();
|
|
defer buffer.deinit();
|
|
var prefix = "?";
|
|
// TODO: This was a pain before, and it's a pain now. Clearly our codegen
|
|
// needs to emit a declaration 100% of the time
|
|
const query_arguments = @TypeOf(request).http_query;
|
|
inline for (@typeInfo(@TypeOf(query_arguments)).Struct.fields) |arg| {
|
|
const val = @field(request, arg.name);
|
|
if (try addQueryArg(arg.type, prefix, @field(query_arguments, arg.name), val, writer))
|
|
prefix = "&";
|
|
}
|
|
return buffer.toOwnedSlice();
|
|
}
|
|
|
|
fn addQueryArg(comptime ValueType: type, prefix: []const u8, key: []const u8, value: anytype, writer: anytype) !bool {
|
|
switch (@typeInfo(@TypeOf(value))) {
|
|
.Optional => {
|
|
if (value) |v|
|
|
return try addQueryArg(ValueType, prefix, key, v, writer);
|
|
return false;
|
|
},
|
|
// if this is a pointer, we want to make sure it is more than just a string
|
|
.Pointer => |ptr| {
|
|
if (ptr.child == u8 or ptr.size != .Slice) {
|
|
// This is just a string
|
|
return try addBasicQueryArg(prefix, key, value, writer);
|
|
}
|
|
var p = prefix;
|
|
for (value) |li| {
|
|
if (try addQueryArg(ValueType, p, key, li, writer))
|
|
p = "&";
|
|
}
|
|
return std.mem.eql(u8, "&", p);
|
|
},
|
|
.Array => |arr| {
|
|
if (arr.child == u8)
|
|
return try addBasicQueryArg(prefix, key, value, writer);
|
|
var p = prefix;
|
|
for (value) |li| {
|
|
if (try addQueryArg(ValueType, p, key, li, writer))
|
|
p = "&";
|
|
}
|
|
return std.mem.eql(u8, "&", p);
|
|
},
|
|
else => {
|
|
return try addBasicQueryArg(prefix, key, value, writer);
|
|
},
|
|
}
|
|
}
|
|
fn addBasicQueryArg(prefix: []const u8, key: []const u8, value: anytype, writer: anytype) !bool {
|
|
_ = try writer.write(prefix);
|
|
// TODO: url escaping
|
|
try uriEncode(key, writer, true);
|
|
_ = try writer.write("=");
|
|
var encoding_writer = uriEncodingWriter(writer);
|
|
var ignoring_writer = ignoringWriter(encoding_writer.writer(), '"');
|
|
try json.stringify(value, .{}, ignoring_writer.writer());
|
|
return true;
|
|
}
|
|
pub fn uriEncodingWriter(child_stream: anytype) UriEncodingWriter(@TypeOf(child_stream)) {
|
|
return .{ .child_stream = child_stream };
|
|
}
|
|
|
|
/// A Writer that ignores a character
|
|
pub fn UriEncodingWriter(comptime WriterType: type) type {
|
|
return struct {
|
|
child_stream: WriterType,
|
|
|
|
pub const Error = WriterType.Error;
|
|
pub const Writer = std.io.Writer(*Self, Error, write);
|
|
|
|
const Self = @This();
|
|
|
|
pub fn write(self: *Self, bytes: []const u8) Error!usize {
|
|
try uriEncode(bytes, self.child_stream, true);
|
|
return bytes.len; // We say that all bytes are "written", even if they're not, as caller may be retrying
|
|
}
|
|
|
|
pub fn writer(self: *Self) Writer {
|
|
return .{ .context = self };
|
|
}
|
|
};
|
|
}
|
|
|
|
pub fn ignoringWriter(child_stream: anytype, ignore: u8) IgnoringWriter(@TypeOf(child_stream)) {
|
|
return .{ .child_stream = child_stream, .ignore = ignore };
|
|
}
|
|
|
|
/// A Writer that ignores a character
|
|
pub fn IgnoringWriter(comptime WriterType: type) type {
|
|
return struct {
|
|
child_stream: WriterType,
|
|
ignore: u8,
|
|
|
|
pub const Error = WriterType.Error;
|
|
pub const Writer = std.io.Writer(*Self, Error, write);
|
|
|
|
const Self = @This();
|
|
|
|
pub fn write(self: *Self, bytes: []const u8) Error!usize {
|
|
for (bytes) |b| {
|
|
if (b != self.ignore)
|
|
try self.child_stream.writeByte(b);
|
|
}
|
|
return bytes.len; // We say that all bytes are "written", even if they're not, as caller may be retrying
|
|
}
|
|
|
|
pub fn writer(self: *Self) Writer {
|
|
return .{ .context = self };
|
|
}
|
|
};
|
|
}
|
|
|
|
fn reportTraffic(allocator: std.mem.Allocator, info: []const u8, request: awshttp.HttpRequest, response: awshttp.HttpResult, comptime reporter: fn (comptime []const u8, anytype) void) !void {
|
|
var msg = std.ArrayList(u8).init(allocator);
|
|
defer msg.deinit();
|
|
const writer = msg.writer();
|
|
try writer.print("{s}\n\n", .{info});
|
|
try writer.print("Return status: {d}\n\n", .{response.response_code});
|
|
if (request.query.len > 0) try writer.print("Request Query:\n \t{s}\n", .{request.query});
|
|
_ = try writer.write("Unique Request Headers:\n");
|
|
if (request.headers.len > 0) {
|
|
for (request.headers) |h|
|
|
try writer.print("\t{s}: {s}\n", .{ h.name, h.value });
|
|
}
|
|
try writer.print("\tContent-Type: {s}\n\n", .{request.content_type});
|
|
|
|
_ = try writer.write("Request Body:\n");
|
|
try writer.print("-------------\n{s}\n", .{request.body});
|
|
_ = try writer.write("-------------\n");
|
|
_ = try writer.write("Response Headers:\n");
|
|
for (response.headers) |h|
|
|
try writer.print("\t{s}: {s}\n", .{ h.name, h.value });
|
|
|
|
_ = try writer.write("Response Body:\n");
|
|
try writer.print("--------------\n{s}\n", .{response.body});
|
|
_ = try writer.write("--------------\n");
|
|
reporter("{s}\n", .{msg.items});
|
|
}
|
|
|
|
// TODO: Where does this belong really?
|
|
fn typeForField(comptime T: type, field_name: []const u8) !type {
|
|
const ti = @typeInfo(T);
|
|
switch (ti) {
|
|
.Struct => {
|
|
inline for (ti.Struct.fields) |field| {
|
|
if (std.mem.eql(u8, field.name, field_name))
|
|
return field.type;
|
|
}
|
|
},
|
|
else => return error.TypeIsNotAStruct, // should not hit this
|
|
}
|
|
return error.FieldNotFound;
|
|
}
|
|
|
|
test "custom serialization for map objects" {
|
|
const allocator = std.testing.allocator;
|
|
var buffer = std.ArrayList(u8).init(allocator);
|
|
defer buffer.deinit();
|
|
var tags = try std.ArrayList(@typeInfo(try typeForField(services.lambda.tag_resource.Request, "tags")).Pointer.child).initCapacity(allocator, 2);
|
|
defer tags.deinit();
|
|
tags.appendAssumeCapacity(.{ .key = "Foo", .value = "Bar" });
|
|
tags.appendAssumeCapacity(.{ .key = "Baz", .value = "Qux" });
|
|
const req = services.lambda.tag_resource.Request{ .resource = "hello", .tags = tags.items };
|
|
try json.stringify(req, .{ .whitespace = .{} }, buffer.writer());
|
|
try std.testing.expectEqualStrings(
|
|
\\{
|
|
\\ "Resource": "hello",
|
|
\\ "Tags": {
|
|
\\ "Foo": "Bar",
|
|
\\ "Baz": "Qux"
|
|
\\ }
|
|
\\}
|
|
, buffer.items);
|
|
}
|
|
|
|
test "REST Json v1 builds proper queries" {
|
|
const allocator = std.testing.allocator;
|
|
const svs = Services(.{.lambda}){};
|
|
const request = svs.lambda.list_functions.Request{
|
|
.max_items = 1,
|
|
};
|
|
const query = try buildQuery(allocator, request);
|
|
defer allocator.free(query);
|
|
try std.testing.expectEqualStrings("?MaxItems=1", query);
|
|
}
|
|
test "REST Json v1 handles reserved chars in queries" {
|
|
const allocator = std.testing.allocator;
|
|
const svs = Services(.{.lambda}){};
|
|
var keys = [_][]const u8{"Foo?I'm a crazy%dude"}; // Would love to have a way to express this without burning a var here
|
|
const request = svs.lambda.untag_resource.Request{
|
|
.tag_keys = keys[0..],
|
|
.resource = "hello",
|
|
};
|
|
const query = try buildQuery(allocator, request);
|
|
defer allocator.free(query);
|
|
try std.testing.expectEqualStrings("?tagKeys=Foo%3FI%27m a crazy%25dude", query);
|
|
}
|
|
test "REST Json v1 serializes lists in queries" {
|
|
const allocator = std.testing.allocator;
|
|
const svs = Services(.{.lambda}){};
|
|
var keys = [_][]const u8{ "Foo", "Bar" }; // Would love to have a way to express this without burning a var here
|
|
const request = svs.lambda.untag_resource.Request{
|
|
.tag_keys = keys[0..],
|
|
.resource = "hello",
|
|
};
|
|
const query = try buildQuery(allocator, request);
|
|
defer allocator.free(query);
|
|
try std.testing.expectEqualStrings("?tagKeys=Foo&tagKeys=Bar", query);
|
|
}
|
|
test "REST Json v1 buildpath substitutes" {
|
|
const allocator = std.testing.allocator;
|
|
const svs = Services(.{.lambda}){};
|
|
const request = svs.lambda.list_functions.Request{
|
|
.max_items = 1,
|
|
};
|
|
const input_path = "https://myhost/{MaxItems}/";
|
|
const output_path = try buildPath(allocator, input_path, @TypeOf(request), request, true);
|
|
defer allocator.free(output_path);
|
|
try std.testing.expectEqualStrings("https://myhost/1/", output_path);
|
|
}
|
|
test "REST Json v1 buildpath handles restricted characters" {
|
|
const allocator = std.testing.allocator;
|
|
const svs = Services(.{.lambda}){};
|
|
const request = svs.lambda.list_functions.Request{
|
|
.marker = ":",
|
|
};
|
|
const input_path = "https://myhost/{Marker}/";
|
|
const output_path = try buildPath(allocator, input_path, @TypeOf(request), request, true);
|
|
defer allocator.free(output_path);
|
|
try std.testing.expectEqualStrings("https://myhost/%3A/", output_path);
|
|
}
|
|
test "basic json request serialization" {
|
|
const allocator = std.testing.allocator;
|
|
const svs = Services(.{.dynamo_db}){};
|
|
const request = svs.dynamo_db.list_tables.Request{
|
|
.limit = 1,
|
|
};
|
|
var buffer = std.ArrayList(u8).init(allocator);
|
|
defer buffer.deinit();
|
|
|
|
// The transformer needs to allocate stuff out of band, but we
|
|
// can guarantee we don't need the memory after this call completes,
|
|
// so we'll use an arena allocator to whack everything.
|
|
// TODO: Determine if sending in null values is ok, or if we need another
|
|
// tweak to the stringify function to exclude. According to the
|
|
// smithy spec, "A null value MAY be provided or omitted
|
|
// for a boxed member with no observable difference." But we're
|
|
// seeing a lot of differences here between spec and reality
|
|
//
|
|
var nameAllocator = std.heap.ArenaAllocator.init(allocator);
|
|
defer nameAllocator.deinit();
|
|
try json.stringify(request, .{ .whitespace = .{} }, buffer.writer());
|
|
try std.testing.expectEqualStrings(
|
|
\\{
|
|
\\ "ExclusiveStartTableName": null,
|
|
\\ "Limit": 1
|
|
\\}
|
|
, buffer.items);
|
|
}
|
|
test "layer object only" {
|
|
const TestResponse = struct {
|
|
arn: ?[]const u8 = null,
|
|
// uncompressed_code_size: ?i64 = null,
|
|
|
|
pub fn jsonFieldNameFor(_: @This(), comptime field_name: []const u8) []const u8 {
|
|
const mappings = .{
|
|
.arn = "Arn",
|
|
};
|
|
return @field(mappings, field_name);
|
|
}
|
|
};
|
|
const response =
|
|
\\ {
|
|
\\ "UncompressedCodeSize": 2,
|
|
\\ "Arn": "blah"
|
|
\\ }
|
|
;
|
|
// const response =
|
|
// \\ {
|
|
// \\ "UncompressedCodeSize": 22599541,
|
|
// \\ "Arn": "arn:aws:lambda:us-west-2:550620852718:layer:PollyNotes-lib:4"
|
|
// \\ }
|
|
// ;
|
|
const allocator = std.testing.allocator;
|
|
var stream = json.TokenStream.init(response);
|
|
const parser_options = json.ParseOptions{
|
|
.allocator = allocator,
|
|
.allow_camel_case_conversion = true, // new option
|
|
.allow_snake_case_conversion = true, // new option
|
|
.allow_unknown_fields = true, // new option. Cannot yet handle non-struct fields though
|
|
.allow_missing_fields = false, // new option. Cannot yet handle non-struct fields though
|
|
};
|
|
const r = try json.parse(TestResponse, &stream, parser_options);
|
|
json.parseFree(TestResponse, r, parser_options);
|
|
}
|
|
|
|
// Use for debugging json responses of specific requests
|
|
// test "dummy request" {
|
|
// const allocator = std.testing.allocator;
|
|
// const svs = Services(.{.sts}){};
|
|
// const request = svs.sts.get_session_token.Request{
|
|
// .duration_seconds = 900,
|
|
// };
|
|
// const FullR = FullResponse(request);
|
|
// const response =
|
|
// var stream = json.TokenStream.init(response);
|
|
//
|
|
// const parser_options = json.ParseOptions{
|
|
// .allocator = allocator,
|
|
// .allow_camel_case_conversion = true, // new option
|
|
// .allow_snake_case_conversion = true, // new option
|
|
// .allow_unknown_fields = true, // new option. Cannot yet handle non-struct fields though
|
|
// .allow_missing_fields = false, // new option. Cannot yet handle non-struct fields though
|
|
// };
|
|
// const SResponse = ServerResponse(request);
|
|
// const r = try json.parse(SResponse, &stream, parser_options);
|
|
// json.parseFree(SResponse, r, parser_options);
|
|
// }
|