from fastapi.param_functions import Form
from fastapi.security.base import SecurityBase
from fastapi.security.utils import get_authorization_scheme_param
from starlette.requests import Request
from starlette.status import HTTP_401_UNAUTHORIZED, HTTP_403_FORBIDDEN

# TODO: import from typing when deprecating Python 3.9
from typing_extensions import Annotated, Doc


class OAuth2PasswordRequestForm:
    """

pkg syscall (darwin-386), const CSIZE ideal-int
pkg syscall (darwin-386), const CSTART = 17
pkg syscall (darwin-386), const CSTART ideal-int
pkg syscall (darwin-386), const CSTATUS = 20
pkg syscall (darwin-386), const CSTATUS ideal-int
pkg syscall (darwin-386), const CSTOP = 19
pkg syscall (darwin-386), const CSTOP ideal-int
pkg syscall (darwin-386), const CSTOPB = 1024
pkg syscall (darwin-386), const CSTOPB ideal-int

			expMissedTasks.Value = float64(globalExpiryState.stats.MissedTasks())
			expMissedFreeVersions.Value = float64(globalExpiryState.stats.MissedFreeVersTasks())
			expMissedTierJournalTasks.Value = float64(globalExpiryState.stats.MissedTierJournalTasks())
			expNumWorkers.Value = float64(globalExpiryState.stats.NumWorkers())
		}
		if globalTransitionState != nil {

    return remove(key, 0);
  }

  /**
   * Removes all mappings from this map whose values are zero.
   *
   * <p>This method is not atomic: the map may be visible in intermediate states, where some of the
   * zero values have been removed and others have not.
   */
  public void removeAllZeros() {
    map.values().removeIf(x -> x == 0);
  }

  /**

-With"]="XMLHttpRequest"),e)r.setRequestHeader(n,e[n]);o=function(e){return function(){o&&(o=a=r.onload=r.onerror=r.onabort=r.ontimeout=r.onreadystatechange=null,"abort"===e?r.abort():"error"===e?"number"!=typeof r.status?t(0,"error"):t(r.status,r.statusText):t(Yt[r.status]||r.status,r.statusText,"text"!==(r.responseType||"text")||"string"!=typeof r.responseText?{binary:r.response}:{text:r.responseText},r.getAllResponseHeaders()))}},r.onload=o(),a=r.onerror=r.ontimeout=o("error"),void 0!==r.onab...

它们会为每个*路径操作*进行单独检查。

## 查看文档

打开 API 文档，进行身份验证，并指定要授权的作用域。

<img src="/img/tutorial/security/image11.png">

没有选择任何作用域，也可以进行**身份验证**，但访问 `/uses/me` 或 `/users/me/items` 时，会显示没有足够的权限。但仍可以访问 `/status/`。

如果选择了作用域 `me`，但没有选择作用域 `items`，则可以访问 `/users/me/`，但不能访问 `/users/me/items`。

这就是通过用户提供的令牌使用第三方应用访问这些*路径操作*时会发生的情况，具体怎样取决于用户授予第三方应用的权限。

## 关于第三方集成

本例使用 OAuth2 **密码**流。

	lastHCAt        time.Time
	offlineDuration time.Duration
	latency         latencyStat
}

// isOffline returns current liveness result of remote target. Add endpoint to
// healthCheck map if missing and default to online status
func (sys *BucketTargetSys) isOffline(ep *url.URL) bool {
	sys.hMutex.RLock()
	defer sys.hMutex.RUnlock()
	if h, ok := sys.hc[ep.Host]; ok {
		return !h.Online
	}
	go sys.initHC(ep)
	return false
}

If you need to check on [CI](http://builds.gradle.org/) status as an external contributor, you can click "Log in as guest".

## Useful tips

### How Gradle Works

We have [a series of blog](https://blog.gradle.org/how-gradle-works-1) that explains how Gradle works.

	writeResponse(w, http.StatusOK, response, mimeXML)
}

// writeSuccessNoContent writes success headers with http status 204
func writeSuccessNoContent(w http.ResponseWriter) {
	writeResponse(w, http.StatusNoContent, nil, mimeNone)
}

// writeRedirectSeeOther writes Location header with http status 303
func writeRedirectSeeOther(w http.ResponseWriter, location string) {
	w.Header().Set(xhttp.Location, location)

				if err != nil {
					writeErrorResponse(ctx, w, exportError(ctx, err, cfgFile, bucket), r.URL)
					return
				}
				// ignore empty versioning configs
				if config.Status != versioning.Enabled && config.Status != versioning.Suspended {
					continue
				}
				configData, err := xml.Marshal(config)
				if err != nil {
					writeErrorResponse(ctx, w, exportError(ctx, err, cfgFile, bucket), r.URL)