Git 2.48

[git/gitster.git] / Documentation / config / http.txt

http.proxy::
        Override the HTTP proxy, normally configured using the 'http_proxy',
        'https_proxy', and 'all_proxy' environment variables (see `curl(1)`). In
        addition to the syntax understood by curl, it is possible to specify a
        proxy string with a user name but no password, in which case git will
        attempt to acquire one in the same way it does for other credentials. See
        linkgit:gitcredentials[7] for more information. The syntax thus is
        '[protocol://][user[:password]@]proxyhost[:port][/path]'. This can be
        overridden on a per-remote basis; see remote.<name>.proxy
+
Any proxy, however configured, must be completely transparent and must not
modify, transform, or buffer the request or response in any way.  Proxies which
are not completely transparent are known to cause various forms of breakage
with Git.

http.proxyAuthMethod::
        Set the method with which to authenticate against the HTTP proxy. This
        only takes effect if the configured proxy string contains a user name part
        (i.e. is of the form 'user@host' or 'user@host:port'). This can be
        overridden on a per-remote basis; see `remote.<name>.proxyAuthMethod`.
        Both can be overridden by the `GIT_HTTP_PROXY_AUTHMETHOD` environment
        variable.  Possible values are:
+
--
* `anyauth` - Automatically pick a suitable authentication method. It is
  assumed that the proxy answers an unauthenticated request with a 407
  status code and one or more Proxy-authenticate headers with supported
  authentication methods. This is the default.
* `basic` - HTTP Basic authentication
* `digest` - HTTP Digest authentication; this prevents the password from being
  transmitted to the proxy in clear text
* `negotiate` - GSS-Negotiate authentication (compare the --negotiate option
  of `curl(1)`)
* `ntlm` - NTLM authentication (compare the --ntlm option of `curl(1)`)
--

http.proxySSLCert::
        The pathname of a file that stores a client certificate to use to authenticate
        with an HTTPS proxy. Can be overridden by the `GIT_PROXY_SSL_CERT` environment
        variable.

http.proxySSLKey::
        The pathname of a file that stores a private key to use to authenticate with
        an HTTPS proxy. Can be overridden by the `GIT_PROXY_SSL_KEY` environment
        variable.

http.proxySSLCertPasswordProtected::
        Enable Git's password prompt for the proxy SSL certificate.  Otherwise OpenSSL
        will prompt the user, possibly many times, if the certificate or private key
        is encrypted. Can be overridden by the `GIT_PROXY_SSL_CERT_PASSWORD_PROTECTED`
        environment variable.

http.proxySSLCAInfo::
        Pathname to the file containing the certificate bundle that should be used to
        verify the proxy with when using an HTTPS proxy. Can be overridden by the
        `GIT_PROXY_SSL_CAINFO` environment variable.

http.emptyAuth::
        Attempt authentication without seeking a username or password.  This
        can be used to attempt GSS-Negotiate authentication without specifying
        a username in the URL, as libcurl normally requires a username for
        authentication.

http.proactiveAuth::
        Attempt authentication without first making an unauthenticated attempt and
        receiving a 401 response. This can be used to ensure that all requests are
        authenticated. If `http.emptyAuth` is set to true, this value has no effect.
+
If the credential helper used specifies an authentication scheme (i.e., via the
`authtype` field), that value will be used; if a username and password is
provided without a scheme, then Basic authentication is used.  The value of the
option determines the scheme requested from the helper. Possible values are:
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--
* `basic` - Request Basic authentication from the helper.
* `auto` - Allow the helper to pick an appropriate scheme.
* `none` - Disable proactive authentication.
--
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Note that TLS should always be used with this configuration, since otherwise it
is easy to accidentally expose plaintext credentials if Basic authentication
is selected.

http.delegation::
        Control GSSAPI credential delegation. The delegation is disabled
        by default in libcurl since version 7.21.7. Set parameter to tell
        the server what it is allowed to delegate when it comes to user
        credentials. Used with GSS/kerberos. Possible values are:
+
--
* `none` - Don't allow any delegation.
* `policy` - Delegates if and only if the OK-AS-DELEGATE flag is set in the
  Kerberos service ticket, which is a matter of realm policy.
* `always` - Unconditionally allow the server to delegate.
--


http.extraHeader::
        Pass an additional HTTP header when communicating with a server.  If
        more than one such entry exists, all of them are added as extra
        headers.  To allow overriding the settings inherited from the system
        config, an empty value will reset the extra headers to the empty list.

http.cookieFile::
        The pathname of a file containing previously stored cookie lines,
        which should be used
        in the Git http session, if they match the server. The file format
        of the file to read cookies from should be plain HTTP headers or
        the Netscape/Mozilla cookie file format (see `curl(1)`).
        Set it to an empty string, to accept only new cookies from
        the server and send them back in successive requests within same
        connection.
        NOTE that the file specified with http.cookieFile is used only as
        input unless http.saveCookies is set.

http.saveCookies::
        If set, store cookies received during requests to the file specified by
        http.cookieFile. Has no effect if http.cookieFile is unset, or set to
        an empty string.

http.version::
        Use the specified HTTP protocol version when communicating with a server.
        If you want to force the default. The available and default version depend
        on libcurl. Currently the possible values of
        this option are:

        - HTTP/2
        - HTTP/1.1

http.curloptResolve::
        Hostname resolution information that will be used first by
        libcurl when sending HTTP requests.  This information should
        be in one of the following formats:

        - [+]HOST:PORT:ADDRESS[,ADDRESS]
        - -HOST:PORT

+
The first format redirects all requests to the given `HOST:PORT`
to the provided `ADDRESS`(s). The second format clears all
previous config values for that `HOST:PORT` combination.  To
allow easy overriding of all the settings inherited from the
system config, an empty value will reset all resolution
information to the empty list.

http.sslVersion::
        The SSL version to use when negotiating an SSL connection, if you
        want to force the default.  The available and default version
        depend on whether libcurl was built against NSS or OpenSSL and the
        particular configuration of the crypto library in use. Internally
        this sets the 'CURLOPT_SSL_VERSION' option; see the libcurl
        documentation for more details on the format of this option and
        for the ssl version supported. Currently the possible values of
        this option are:

        - sslv2
        - sslv3
        - tlsv1
        - tlsv1.0
        - tlsv1.1
        - tlsv1.2
        - tlsv1.3

+
Can be overridden by the `GIT_SSL_VERSION` environment variable.
To force git to use libcurl's default ssl version and ignore any
explicit http.sslversion option, set `GIT_SSL_VERSION` to the
empty string.

http.sslCipherList::
  A list of SSL ciphers to use when negotiating an SSL connection.
  The available ciphers depend on whether libcurl was built against
  NSS or OpenSSL and the particular configuration of the crypto
  library in use.  Internally this sets the 'CURLOPT_SSL_CIPHER_LIST'
  option; see the libcurl documentation for more details on the format
  of this list.
+
Can be overridden by the `GIT_SSL_CIPHER_LIST` environment variable.
To force git to use libcurl's default cipher list and ignore any
explicit http.sslCipherList option, set `GIT_SSL_CIPHER_LIST` to the
empty string.

http.sslVerify::
        Whether to verify the SSL certificate when fetching or pushing
        over HTTPS. Defaults to true. Can be overridden by the
        `GIT_SSL_NO_VERIFY` environment variable.

http.sslCert::
        File containing the SSL certificate when fetching or pushing
        over HTTPS. Can be overridden by the `GIT_SSL_CERT` environment
        variable.

http.sslKey::
        File containing the SSL private key when fetching or pushing
        over HTTPS. Can be overridden by the `GIT_SSL_KEY` environment
        variable.

http.sslCertPasswordProtected::
        Enable Git's password prompt for the SSL certificate.  Otherwise
        OpenSSL will prompt the user, possibly many times, if the
        certificate or private key is encrypted.  Can be overridden by the
        `GIT_SSL_CERT_PASSWORD_PROTECTED` environment variable.

http.sslCAInfo::
        File containing the certificates to verify the peer with when
        fetching or pushing over HTTPS. Can be overridden by the
        `GIT_SSL_CAINFO` environment variable.

http.sslCAPath::
        Path containing files with the CA certificates to verify the peer
        with when fetching or pushing over HTTPS. Can be overridden
        by the `GIT_SSL_CAPATH` environment variable.

http.sslBackend::
        Name of the SSL backend to use (e.g. "openssl" or "schannel").
        This option is ignored if cURL lacks support for choosing the SSL
        backend at runtime.

http.schannelCheckRevoke::
        Used to enforce or disable certificate revocation checks in cURL
        when http.sslBackend is set to "schannel". Defaults to `true` if
        unset. Only necessary to disable this if Git consistently errors
        and the message is about checking the revocation status of a
        certificate. This option is ignored if cURL lacks support for
        setting the relevant SSL option at runtime.

http.schannelUseSSLCAInfo::
        As of cURL v7.60.0, the Secure Channel backend can use the
        certificate bundle provided via `http.sslCAInfo`, but that would
        override the Windows Certificate Store. Since this is not desirable
        by default, Git will tell cURL not to use that bundle by default
        when the `schannel` backend was configured via `http.sslBackend`,
        unless `http.schannelUseSSLCAInfo` overrides this behavior.

http.pinnedPubkey::
        Public key of the https service. It may either be the filename of
        a PEM or DER encoded public key file or a string starting with
        'sha256//' followed by the base64 encoded sha256 hash of the
        public key. See also libcurl 'CURLOPT_PINNEDPUBLICKEY'. git will
        exit with an error if this option is set but not supported by
        cURL.

http.sslTry::
        Attempt to use AUTH SSL/TLS and encrypted data transfers
        when connecting via regular FTP protocol. This might be needed
        if the FTP server requires it for security reasons or you wish
        to connect securely whenever remote FTP server supports it.
        Default is false since it might trigger certificate verification
        errors on misconfigured servers.

http.maxRequests::
        How many HTTP requests to launch in parallel. Can be overridden
        by the `GIT_HTTP_MAX_REQUESTS` environment variable. Default is 5.

http.minSessions::
        The number of curl sessions (counted across slots) to be kept across
        requests. They will not be ended with curl_easy_cleanup() until
        http_cleanup() is invoked. If USE_CURL_MULTI is not defined, this
        value will be capped at 1. Defaults to 1.

http.postBuffer::
        Maximum size in bytes of the buffer used by smart HTTP
        transports when POSTing data to the remote system.
        For requests larger than this buffer size, HTTP/1.1 and
        Transfer-Encoding: chunked is used to avoid creating a
        massive pack file locally.  Default is 1 MiB, which is
        sufficient for most requests.
+
Note that raising this limit is only effective for disabling chunked
transfer encoding and therefore should be used only where the remote
server or a proxy only supports HTTP/1.0 or is noncompliant with the
HTTP standard.  Raising this is not, in general, an effective solution
for most push problems, but can increase memory consumption
significantly since the entire buffer is allocated even for small
pushes.

http.lowSpeedLimit, http.lowSpeedTime::
        If the HTTP transfer speed, in bytes per second, is less than
        'http.lowSpeedLimit' for longer than 'http.lowSpeedTime' seconds,
        the transfer is aborted.
        Can be overridden by the `GIT_HTTP_LOW_SPEED_LIMIT` and
        `GIT_HTTP_LOW_SPEED_TIME` environment variables.

http.noEPSV::
        A boolean which disables using of EPSV ftp command by curl.
        This can be helpful with some "poor" ftp servers which don't
        support EPSV mode. Can be overridden by the `GIT_CURL_FTP_NO_EPSV`
        environment variable. Default is false (curl will use EPSV).

http.userAgent::
        The HTTP USER_AGENT string presented to an HTTP server.  The default
        value represents the version of the Git client such as git/1.7.1.
        This option allows you to override this value to a more common value
        such as Mozilla/4.0.  This may be necessary, for instance, if
        connecting through a firewall that restricts HTTP connections to a set
        of common USER_AGENT strings (but not including those like git/1.7.1).
        Can be overridden by the `GIT_HTTP_USER_AGENT` environment variable.

http.followRedirects::
        Whether git should follow HTTP redirects. If set to `true`, git
        will transparently follow any redirect issued by a server it
        encounters. If set to `false`, git will treat all redirects as
        errors. If set to `initial`, git will follow redirects only for
        the initial request to a remote, but not for subsequent
        follow-up HTTP requests. Since git uses the redirected URL as
        the base for the follow-up requests, this is generally
        sufficient. The default is `initial`.

http.<url>.*::
        Any of the http.* options above can be applied selectively to some URLs.
        For a config key to match a URL, each element of the config key is
        compared to that of the URL, in the following order:
+
--
. Scheme (e.g., `https` in `https://example.com/`). This field
  must match exactly between the config key and the URL.

. Host/domain name (e.g., `example.com` in `https://example.com/`).
  This field must match between the config key and the URL. It is
  possible to specify a `*` as part of the host name to match all subdomains
  at this level. `https://*.example.com/` for example would match
  `https://foo.example.com/`, but not `https://foo.bar.example.com/`.

. Port number (e.g., `8080` in `http://example.com:8080/`).
  This field must match exactly between the config key and the URL.
  Omitted port numbers are automatically converted to the correct
  default for the scheme before matching.

. Path (e.g., `repo.git` in `https://example.com/repo.git`). The
  path field of the config key must match the path field of the URL
  either exactly or as a prefix of slash-delimited path elements.  This means
  a config key with path `foo/` matches URL path `foo/bar`.  A prefix can only
  match on a slash (`/`) boundary.  Longer matches take precedence (so a config
  key with path `foo/bar` is a better match to URL path `foo/bar` than a config
  key with just path `foo/`).

. User name (e.g., `user` in `https://user@example.com/repo.git`). If
  the config key has a user name it must match the user name in the
  URL exactly. If the config key does not have a user name, that
  config key will match a URL with any user name (including none),
  but at a lower precedence than a config key with a user name.
--
+
The list above is ordered by decreasing precedence; a URL that matches
a config key's path is preferred to one that matches its user name. For example,
if the URL is `https://user@example.com/foo/bar` a config key match of
`https://example.com/foo` will be preferred over a config key match of
`https://user@example.com`.
+
All URLs are normalized before attempting any matching (the password part,
if embedded in the URL, is always ignored for matching purposes) so that
equivalent URLs that are simply spelled differently will match properly.
Environment variable settings always override any matches.  The URLs that are
matched against are those given directly to Git commands.  This means any URLs
visited as a result of a redirection do not participate in matching.