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lib/index.ts

Summary

Maintainability
F
3 days
Test Coverage

File index.ts has 484 lines of code (exceeds 250 allowed). Consider refactoring.
Open

import http = require("http");
import { createReadStream } from "fs";
import { createDeflate, createGzip, createBrotliCompress } from "zlib";
import accepts = require("accepts");
import { pipeline } from "stream";
Severity: Minor
Found in lib/index.ts - About 7 hrs to fix

    Server has 32 functions (exceeds 20 allowed). Consider refactoring.
    Open

    export class Server<
  ListenEvents extends EventsMap = DefaultEventsMap,
  EmitEvents extends EventsMap = ListenEvents,
  ServerSideEvents extends EventsMap = DefaultEventsMap,
  SocketData = any
    Severity: Minor
    Found in lib/index.ts - About 4 hrs to fix

      Function attachApp has 42 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

        public attachApp(app /*: TemplatedApp */, opts: Partial<ServerOptions> = {}) {
    // merge the options passed to the Socket.IO server
    Object.assign(opts, this.opts);
    // set engine.io path to `/socket.io`
    opts.path = opts.path || this._path;
      Severity: Minor
      Found in lib/index.ts - About 1 hr to fix

        Function of has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
        Open

          public of(
    name: string | RegExp | ParentNspNameMatchFn,
    fn?: (
      socket: Socket<ListenEvents, EmitEvents, ServerSideEvents, SocketData>
    ) => void
        Severity: Minor
        Found in lib/index.ts - About 1 hr to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Function of has 28 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          public of(
    name: string | RegExp | ParentNspNameMatchFn,
    fn?: (
      socket: Socket<ListenEvents, EmitEvents, ServerSideEvents, SocketData>
    ) => void
        Severity: Minor
        Found in lib/index.ts - About 1 hr to fix

          Function sendFile has 27 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

            private static sendFile(
    filename: string,
    req: http.IncomingMessage,
    res: http.ServerResponse
  ): void {
          Severity: Minor
          Found in lib/index.ts - About 1 hr to fix

            Similar blocks of code found in 2 locations. Consider refactoring.
            Open

              public use(
    fn: (
      socket: Socket<ListenEvents, EmitEvents, ServerSideEvents, SocketData>,
      next: (err?: ExtendedError) => void
    ) => void
            Severity: Major
            Found in lib/index.ts and 1 other location - About 2 hrs to fix
            lib/namespace.ts on lines 131..139

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 83.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 3 locations. Consider refactoring.
            Open

              public to(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData> {
    return this.sockets.to(room);
  }
            Severity: Major
            Found in lib/index.ts and 2 other locations - About 1 hr to fix
            lib/index.ts on lines 678..680
            lib/index.ts on lines 689..693

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 56.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 3 locations. Consider refactoring.
            Open

              public except(
    name: Room | Room[]
  ): BroadcastOperator<EmitEvents, SocketData> {
    return this.sockets.except(name);
  }
            Severity: Major
            Found in lib/index.ts and 2 other locations - About 1 hr to fix
            lib/index.ts on lines 667..669
            lib/index.ts on lines 678..680

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 56.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 3 locations. Consider refactoring.
            Open

              public in(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData> {
    return this.sockets.in(room);
  }
            Severity: Major
            Found in lib/index.ts and 2 other locations - About 1 hr to fix
            lib/index.ts on lines 667..669
            lib/index.ts on lines 689..693

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 56.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 2 locations. Consider refactoring.
            Open

              public send(...args: EventParams<EmitEvents, "message">): this {
    this.sockets.emit("message", ...args);
    return this;
  }
            Severity: Major
            Found in lib/index.ts and 1 other location - About 1 hr to fix
            lib/index.ts on lines 712..715

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 55.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 2 locations. Consider refactoring.
            Open

              public write(...args: EventParams<EmitEvents, "message">): this {
    this.sockets.emit("message", ...args);
    return this;
  }
            Severity: Major
            Found in lib/index.ts and 1 other location - About 1 hr to fix
            lib/index.ts on lines 701..704

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 55.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 3 locations. Consider refactoring.
            Open

              public socketsJoin(room: Room | Room[]): void {
    return this.sockets.socketsJoin(room);
  }
            Severity: Minor
            Found in lib/index.ts and 2 other locations - About 30 mins to fix
            lib/broadcast-operator.ts on lines 300..302
            lib/index.ts on lines 800..802

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 45.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 3 locations. Consider refactoring.
            Open

              public socketsLeave(room: Room | Room[]): void {
    return this.sockets.socketsLeave(room);
  }
            Severity: Minor
            Found in lib/index.ts and 2 other locations - About 30 mins to fix
            lib/broadcast-operator.ts on lines 300..302
            lib/index.ts on lines 790..792

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 45.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

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