matrixion/src/MatrixClient.h
2021-11-21 06:10:24 +01:00

135 lines
4.1 KiB
C++

// SPDX-FileCopyrightText: 2021 Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <mtxclient/http/client.hpp>
#include <curl/curl.h>
#include "Logging.h"
namespace http {
mtx::http::Client *
client();
bool
is_logged_in();
//! Initialize the http module
void
init();
}
template<>
struct fmt::formatter<mtx::http::ClientError>
{
// Presentation format: 'f' - fixed, 'e' - exponential.
bool print_network_error = false;
bool print_http_error = false;
bool print_parser_error = false;
bool print_matrix_error = false;
// Parses format specifications of the form ['f' | 'e'].
constexpr auto parse(format_parse_context &ctx) -> decltype(ctx.begin())
{
// [ctx.begin(), ctx.end()) is a character range that contains a part of
// the format string starting from the format specifications to be parsed,
// e.g. in
//
// fmt::format("{:f} - point of interest", point{1, 2});
//
// the range will contain "f} - point of interest". The formatter should
// parse specifiers until '}' or the end of the range. In this example
// the formatter should parse the 'f' specifier and return an iterator
// pointing to '}'.
// Parse the presentation format and store it in the formatter:
auto it = ctx.begin(), end = ctx.end();
while (it != end && *it != '}') {
auto tmp = *it++;
switch (tmp) {
case 'n':
print_matrix_error = true;
break;
case 'h':
print_matrix_error = true;
break;
case 'p':
print_matrix_error = true;
break;
case 'm':
print_matrix_error = true;
break;
default:
throw format_error("invalid format specifier for mtx error");
}
}
// Check if reached the end of the range:
if (it != end && *it != '}')
throw format_error("invalid format");
// Return an iterator past the end of the parsed range:
return it;
}
// Formats the point p using the parsed format specification (presentation)
// stored in this formatter.
template<typename FormatContext>
auto format(const mtx::http::ClientError &e, FormatContext &ctx) -> decltype(ctx.out())
{
// ctx.out() is an output iterator to write to.
bool prepend_comma = false;
format_to(ctx.out(), "(");
if (print_network_error || e.error_code) {
format_to(ctx.out(), "connection: {}", e.error_code_string());
prepend_comma = true;
}
if (print_http_error ||
(e.status_code != 0 && (e.status_code < 200 || e.status_code >= 300))) {
if (prepend_comma)
format_to(ctx.out(), ", ");
format_to(ctx.out(), "http: {}", e.status_code);
prepend_comma = true;
}
if (print_parser_error || !e.parse_error.empty()) {
if (prepend_comma)
format_to(ctx.out(), ", ");
format_to(ctx.out(), "parser: {}", e.parse_error);
prepend_comma = true;
}
if (print_parser_error ||
(e.matrix_error.errcode != mtx::errors::ErrorCode::M_UNRECOGNIZED &&
!e.matrix_error.error.empty())) {
if (prepend_comma)
format_to(ctx.out(), ", ");
format_to(ctx.out(),
"matrix: {}:'{}'",
to_string(e.matrix_error.errcode),
e.matrix_error.error);
}
return format_to(ctx.out(), ")");
}
};
template<>
struct fmt::formatter<std::optional<mtx::http::ClientError>> : formatter<mtx::http::ClientError>
{
// parse is inherited from formatter<string_view>.
template<typename FormatContext>
auto format(std::optional<mtx::http::ClientError> c, FormatContext &ctx)
{
if (!c)
return format_to(ctx.out(), "(no error)");
else
return formatter<mtx::http::ClientError>::format(*c, ctx);
}
};