bwilliams
67215a6aaa
CODE_CONVENTIONS.md sets out the conventions for Go code in this repository: naming, layout, comments, errors, logging, configuration and tests. .golangci.json enables the linters that check the parts that can be checked (each limited to the rules the conventions use); the rest is applied by hand. Applied across the codebase: - Naming: full-word names in application code, initialisms in one case (BuyerID, PrintJSON, PrintYAML, ocdsGetBuyerID), no names shadowing built-ins (min/max are minGap/maxGap), mustRaw renamed rawJSON as it returns nil rather than panicking, and config.ConfigLevelToLogLevel renamed LevelToLogLevel. - Layout: lines kept to 80 characters where possible, assignments taken out of if and for statements that don't fit, wrapped arguments all on one line or one per line, steps separated by blank lines, no else after a return, function and struct literals wrapped. - Comments: doc comments on every exported name (including each section's Map, Flatten, TypeOf, ValueOf and SetValue), section banners, British spelling. - Errors: a created error starts with its package name, a wrapping error adds only what was being done, sentinels in one commented var block, errors.Is and errors.As in place of == and type assertions, and no err := shadowing of a named result. That fixes the mock server losing its access log's close error. - Logging: the fetcher passes its workers an untagged logger, so findatender's lines are tagged with their own component rather than with fetcher's as well; cmd/mock-fts logs "stopped" with slog. - Configuration: util.WithTimeout (moved from the websocket package) applies a timeout of 0 or less as no limit, used for the websocket write and ping, TCP close and tcpserver shutdown timeouts; every setting documents what 0 or empty means, including the rate limit rule's keys in internal/config/README.md. - Tests: related tests merged into table-driven ones with named cases. Separately from CODE_CONVENTIONS.md, internal/store/README.md gains a soft SQL style convention for the queries in internal/store/queries.go, and the queries are reformatted to follow it.
68 lines
2.3 KiB
Go
68 lines
2.3 KiB
Go
package config
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import (
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"errors"
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"reflect"
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"time"
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"git.avsdev.uk/Go/job-search/internal/util"
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)
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// JSCKServerWebSocket is the websocket section's configuration key.
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const JSCKServerWebSocket string = "websocket"
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// JSCServerWebSocket configures the server's websocket connections.
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// MaxMessageSize is the largest message read from a client; 0 means the
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// default (32KiB), and -1 (no limit) is rejected (see validate). A
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// WriteTimeout or PongTimeout of 0 or less means no limit, and a
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// PingInterval of 0 or less turns pings off.
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type JSCServerWebSocket struct {
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EnableCompression bool `cfg:"enable_compression" default:"false"`
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MaxMessageSize util.ByteSize `cfg:"max_message_size" default:"32KiB"`
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ConnectionLimit JSCRateLimitRule `cfg:"connection_limit"`
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MessageRateLimit JSCRateLimitRule `cfg:"message_rate_limit"`
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WriteTimeout time.Duration `cfg:"write_timeout" default:"10s"`
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PingInterval time.Duration `cfg:"ping_interval" default:"30s"`
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PongTimeout time.Duration `cfg:"pong_timeout" default:"10s"`
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}
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// ---------- Section methods (see Section) ----------
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// Map implements Section.
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func (c JSCServerWebSocket) Map() map[string]any { return mapOf(c) }
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// Flatten implements Section.
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func (c JSCServerWebSocket) Flatten() map[string]any {
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return flattenOf(JSCKServerWebSocket, c)
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}
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// TypeOf implements Section.
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func (c JSCServerWebSocket) TypeOf(key string) (reflect.Kind, error) {
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return typeOf(c, key)
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}
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// ValueOf implements Section.
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func (c JSCServerWebSocket) ValueOf(key string) (any, error) {
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return valueOf(c, key)
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}
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// SetValue implements Section.
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func (c *JSCServerWebSocket) SetValue(key string, value any) error {
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return setValue(c, key, value)
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}
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// ---------- Section specific methods ----------
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// validate checks values before they are stored (see validator).
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// max_message_size can't be -1 (no limit): a client could then send a
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// message of any size, and the server holds each message in memory.
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func (c *JSCServerWebSocket) validate(key string, value any) error {
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if key == "max_message_size" &&
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value.(util.ByteSize) == util.ByteSizeNoLimit {
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return errors.New(
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"config: max_message_size can't be -1 (no limit): set an explicit size, or 0 for the default",
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)
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}
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return nil
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}
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