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URL-API

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See header file and man pages for API. All documented API details work
and are tested in the 1560 test case.

Closes #2842
This commit is contained in:
Daniel Stenberg 2018-08-05 11:51:07 +02:00
parent 17ca0ccff4
commit fb30ac5a2d
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GPG key ID: 5CC908FDB71E12C2
24 changed files with 2814 additions and 365 deletions
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103
docs/libcurl/Makefile.inc
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@ -1,25 +1,82 @@
# Shared between Makefile.am and CMakeLists.txt
man_MANS = curl_easy_cleanup.3 curl_easy_getinfo.3 curl_easy_init.3 \
curl_easy_perform.3 curl_easy_setopt.3 curl_easy_duphandle.3 \
curl_formadd.3 curl_formfree.3 curl_getdate.3 curl_getenv.3 \
curl_slist_append.3 curl_slist_free_all.3 curl_version.3 \
curl_version_info.3 curl_escape.3 curl_unescape.3 curl_free.3 \
curl_strequal.3 curl_strnequal.3 curl_mprintf.3 curl_global_init.3 \
curl_global_cleanup.3 curl_multi_add_handle.3 curl_multi_cleanup.3 \
curl_multi_fdset.3 curl_multi_info_read.3 curl_multi_init.3 \
curl_multi_perform.3 curl_multi_remove_handle.3 curl_share_cleanup.3 \
curl_share_init.3 curl_share_setopt.3 libcurl.3 libcurl-easy.3 \
libcurl-multi.3 libcurl-share.3 libcurl-errors.3 curl_easy_strerror.3 \
curl_multi_strerror.3 curl_share_strerror.3 curl_global_init_mem.3 \
libcurl-tutorial.3 curl_easy_reset.3 curl_easy_escape.3 \
curl_easy_unescape.3 curl_multi_setopt.3 curl_multi_socket.3 \
curl_multi_timeout.3 curl_formget.3 curl_multi_assign.3 \
curl_easy_pause.3 curl_easy_recv.3 curl_easy_send.3 \
curl_multi_socket_action.3 curl_multi_wait.3 libcurl-symbols.3 \
libcurl-thread.3 curl_multi_socket_all.3 curl_global_sslset.3 \
curl_mime_init.3 curl_mime_free.3 curl_mime_addpart.3 curl_mime_name.3 \
curl_mime_data.3 curl_mime_data_cb.3 curl_mime_filedata.3 \
curl_mime_filename.3 curl_mime_subparts.3 \
curl_mime_type.3 curl_mime_headers.3 curl_mime_encoder.3 libcurl-env.3 \
libcurl-security.3 curl_easy_upkeep.3
man_MANS = \
curl_easy_cleanup.3 \
curl_easy_duphandle.3 \
curl_easy_escape.3 \
curl_easy_getinfo.3 \
curl_easy_init.3 \
curl_easy_pause.3 \
curl_easy_perform.3 \
curl_easy_recv.3 \
curl_easy_reset.3 \
curl_easy_send.3 \
curl_easy_setopt.3 \
curl_easy_strerror.3 \
curl_easy_unescape.3 \
curl_easy_upkeep.3 \
curl_escape.3 \
curl_formadd.3 \
curl_formfree.3 \
curl_formget.3 \
curl_free.3 \
curl_getdate.3 \
curl_getenv.3 \
curl_global_cleanup.3 \
curl_global_init.3 \
curl_global_init_mem.3 \
curl_global_sslset.3 \
curl_mime_addpart.3 \
curl_mime_data.3 \
curl_mime_data_cb.3 \
curl_mime_encoder.3 \
curl_mime_filedata.3 \
curl_mime_filename.3 \
curl_mime_free.3 \
curl_mime_headers.3 \
curl_mime_init.3 \
curl_mime_name.3 \
curl_mime_subparts.3 \
curl_mime_type.3 \
curl_mprintf.3 \
curl_multi_add_handle.3 \
curl_multi_assign.3 \
curl_multi_cleanup.3 \
curl_multi_fdset.3 \
curl_multi_info_read.3 \
curl_multi_init.3 \
curl_multi_perform.3 \
curl_multi_remove_handle.3 \
curl_multi_setopt.3 \
curl_multi_socket.3 \
curl_multi_socket_action.3 \
curl_multi_socket_all.3 \
curl_multi_strerror.3 \
curl_multi_timeout.3 \
curl_multi_wait.3 \
curl_share_cleanup.3 \
curl_share_init.3 \
curl_share_setopt.3 \
curl_share_strerror.3 \
curl_slist_append.3 \
curl_slist_free_all.3 \
curl_strequal.3 \
curl_strnequal.3 \
curl_unescape.3 \
curl_url.3 \
curl_url_cleanup.3 \
curl_url_dup.3 \
curl_url_get.3 \
curl_url_set.3 \
curl_version.3 \
curl_version_info.3 \
libcurl-easy.3 \
libcurl-env.3 \
libcurl-errors.3 \
libcurl-multi.3 \
libcurl-security.3 \
libcurl-share.3 \
libcurl-symbols.3 \
libcurl-thread.3 \
libcurl-tutorial.3 \
libcurl.3

61
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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.TH curl_url 3 "6 Aug 2018" "libcurl" "libcurl Manual"
.SH NAME
curl_url - returns a new CURLU handle
.SH SYNOPSIS
.B #include <curl/curl.h>
CURLU *curl_url();
.SH EXPERIMENTAL
The URL API is considered \fBEXPERIMENTAL\fP until further notice. Please test
it, report bugs and help us perfect it. Once proven to be reliable, the
experimental label will be removed.
While this API is marked experimental, we reserve the right to modify the API
slightly if we deem it necessary and it makes it notably better or easier to
use.
.SH DESCRIPTION
This function will allocates and returns a pointer to a fresh CURLU handle, to
be used for further use of the URL API.
.SH RETURN VALUE
Returns a \fBCURLU *\fP if successful, or NULL if out of memory.
.SH EXAMPLE
.nf
CURLUcode rc;
CURLU *url = curl_url();
rc = curl_url_set(url, CURLUPART_URL, "https://example.com", 0);
if(!rc) {
char *scheme;
rc = curl_url_get(url, CURLUPART_SCHEME, &scheme, 0);
if(!rc) {
printf("the scheme is %s\n", scheme);
curl_free(scheme);
}
curl_url_cleanup(url);
}
.fi
.SH AVAILABILITY
Added in curl 7.63.0
.SH "SEE ALSO"
.BR curl_url_cleanup "(3), " curl_url_get "(3), " curl_url_set "(3), "
.BR curl_url_dup "(3), "

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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.TH curl_url_cleanup 3 "6 Aug 2018" "libcurl" "libcurl Manual"
.SH NAME
curl_url_cleanup - free a CURLU handle
.SH SYNOPSIS
.B #include <curl/curl.h>
void curl_url_cleanup(CURLU *handle);
.fi
.SH DESCRIPTION
Frees all the resources associated with the given CURLU handle!
.SH RETURN VALUE
none
.SH EXAMPLE
.nf
CURLU *url = curl_url();
curl_url_set(url, CURLUPART_URL, "https://example.com", 0);
curl_url_cleanup(url);
.fi
.SH AVAILABILITY
Added in curl 7.63.0
.SH "SEE ALSO"
.BR curl_url_dup "(3), " curl_url "(3), " curl_url_set "(3), "
.BR curl_url_get "(3), "

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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.TH curl_url_dup 3 "6 Aug 2018" "libcurl" "libcurl Manual"
.SH NAME
curl_url_dup - duplicate a CURLU handle
.SH SYNOPSIS
.B #include <curl/curl.h>
CURLU *curl_url_dup(CURLU *inhandle);
.fi
.SH DESCRIPTION
Duplicates a given CURLU \fIinhandle\fP and all its contents and returns a
pointer to a new CURLU handle. The new handle also needs to be freed with
\fIcurl_url_cleanup(3)\fP.
.SH RETURN VALUE
Returns a new handle or NULL if out of memory.
.SH EXAMPLE
.nf
CURLUcode rc;
CURLU *url = curl_url();
CURLU *url2;
rc = curl_url_set(url, CURLUPART_URL, "https://example.com", 0);
if(!rc) {
url2 = curl_url_dup(url); /* clone it! */
curl_url_cleanup(url2);
}
curl_url_cleanup(url);
.fi
.SH AVAILABILITY
Added in curl 7.63.0
.SH "SEE ALSO"
.BR curl_url_cleanup "(3), " curl_url "(3), " curl_url_set "(3), "
.BR curl_url_get "(3), "

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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.TH curl_url_get 3 "6 Aug 2018" "libcurl" "libcurl Manual"
.SH NAME
curl_url_get - extract a part from a URL
.SH SYNOPSIS
.B #include <curl/curl.h>
.nf
CURLUcode curl_url_get(CURLU *url,
CURLUPart what,
char **part,
unsigned int flags)
.fi
.SH DESCRIPTION
Given the \fIurl\fP handle of an already parsed URL, this function lets the
user extract individual pieces from it.
The \fIwhat\fP argument should be the particular part to extract (see list
below) and \fIpart\fP points to a 'char *' to get updated to point to a newly
allocated string with the contents.
The \fIflags\fP argument is a bitmask with individual features.
The returned part pointer must be freed with \fIcurl_free(3)\fP after use.
.SH FLAGS
The flags argument is zero, one or more bits set in a bitmask.
.IP CURLU_DEFAULT_PORT
If the handle has no port stored, this option will make \fIcurl_url_get(3)\fP
return the default port for the used scheme.
.IP CURLU_DEFAULT_SCHEME
If the handle has no scheme stored, this option will make
\fIcurl_url_get(3)\fP return the default scheme instead of error.
.IP CURLU_NO_DEFAULT_PORT
Instructs \fIcurl_url_get(3)\fP to not return a port number if it matches the
default port for the scheme.
.IP CURLU_URLDECODE
Asks \fIcurl_url_get(3)\fP to URL decode the contents before returning it. It
will not attempt to decode the scheme, the port number or the full URL.
The query component will also get plus-to-space convertion as a bonus when
this bit is set.
Note that this URL decoding is charset unaware and you will get a zero
terminated string back with data that could be intended for a particular
encoding.
If there's any byte values lower than 32 in the decoded string, the get
operation will return an error instead.
.SH PARTS
.IP CURLUPART_URL
When asked to return the full URL, \fIcurl_url_get(3)\fP will return a
normalized and possibly cleaned up version of what was previously parsed.
.IP CURLUPART_SCHEME
Scheme cannot be URL decoded on get.
.IP CURLUPART_USER
.IP CURLUPART_PASSWORD
.IP CURLUPART_OPTIONS
.IP CURLUPART_HOST
.IP CURLUPART_PORT
Port cannot be URL decoded on get.
.IP CURLUPART_PATH
.IP CURLUPART_QUERY
The query part will also get pluses converted to space when asked to URL
decode on get with the CURLU_URLDECODE bit.
.IP CURLUPART_FRAGMENT
.SH RETURN VALUE
Returns a CURLUcode error value, which is CURLUE_OK (0) if everything went
fine.
If this function returns an error, no URL part is returned.
.SH EXAMPLE
.nf
CURLUcode rc;
CURLU *url = curl_url();
rc = curl_url_set(url, CURLUPART_URL, "https://example.com", 0);
if(!rc) {
char *scheme;
rc = curl_url_get(url, CURLUPART_SCHEME, &scheme, 0);
if(!rc) {
printf("the scheme is %s\n", scheme);
curl_free(scheme);
}
curl_url_cleanup(url);
}
.fi
.SH AVAILABILITY
Added in curl 7.63.0
.SH "SEE ALSO"
.BR curl_url_cleanup "(3), " curl_url "(3), " curl_url_set "(3), "
.BR curl_url_dup "(3), "

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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.TH curl_url_set 3 "6 Aug 2018" "libcurl" "libcurl Manual"
.SH NAME
curl_url_set - set a part from a URL
.SH SYNOPSIS
.B #include <curl/curl.h>
CURLUcode curl_url_set(CURLU *url,
CURLUPart part,
const char *content,
unsigned int flags)
.fi
.SH DESCRIPTION
Given the \fIurl\fP handle of an already parsed URL, this function lets the
user set/update individual pieces of it.
The \fIpart\fP argument should identify the particular URL part (see list
below) to set or change, with \fIcontent\fP pointing to a zero terminated
string with the new contents for that URL part. The contents should be in the
form and encoding they'd use in a URL: URL encoded.
Setting a part to a NULL pointer will effectively remove that part's contents
from the CURLU handle.
The \fIflags\fP argument is a bitmask with independent features.
.SH PARTS
.IP CURLUPART_URL
Allows the full URL of the handle to be replaced. If the handle already is
populated with a URL, the new URL can be relative to the previous.
When successfully setting a new URL, relative or absolute, the handle contents
will be replaced with the information of the newly set URL.
Pass a pointer to a zero terminated string to the \fIurl\fP parameter. The
string must point to a correctly formatted "RFC 3986+" URL or be a NULL
pointer.
.IP CURLUPART_SCHEME
Scheme cannot be URL decoded on set.
.IP CURLUPART_USER
.IP CURLUPART_PASSWORD
.IP CURLUPART_OPTIONS
.IP CURLUPART_HOST
The host name can use IDNA. The string must then be encoded as your locale
says or UTF-8 (when winidn is used).
.IP CURLUPART_PORT
Port cannot be URL encoded on set.
.IP CURLUPART_PATH
If a path is set in the URL without a leading slash, a slash will be inserted
automatically when this URL is read from the handle.
.IP CURLUPART_QUERY
The query part will also get spaces converted to pluses when asked to URL
encode on set with the CURLU_URLENCODE bit.
If used in with \fICURLU_APPENDQUERY\fP, the provided part will be appended on
the end of the existing query - and if the previous part didn't end with an
ampersand (&), an ampersand will be inserted before the new appended part.
When \fCURLU_APPENDQUERY\fP is used together with \fICURLU_URLENCODE\fP,
the '=' symbols will not be URL encoded.
The question mark in the URL is not part of the actual query contents.
.IP CURLUPART_FRAGMENT
The hash sign in the URL is not part of the actual fragment contents.
.SH FLAGS
The flags argument is zero, one or more bits set in a bitmask.
.IP CURLU_NON_SUPPORT_SCHEME
If set, allows \fIcurl_url_set(3)\fP to set a non-supported scheme.
.IP CURLU_URLENCODE
When set, \fIcurl_url_set(3)\fP URL encodes the part on entry, except for
scheme, port and URL.
When setting the path component with URL encoding enabled, the slash character
will be skipped.
The query part gets space-to-plus conversion before the URL conversion.
This URL encoding is charset unaware and will convert the input on a
byte-by-byte manner.
.SH RETURN VALUE
Returns a CURLUcode error value, which is CURLUE_OK (0) if everything went
fine.
If this function returns an error, no URL part is returned.
.SH EXAMPLE
.nf
CURLUcode rc;
CURLU *url = curl_url();
rc = curl_url_set(url, CURLUPART_URL, "https://example.com", 0);
if(!rc) {
char *scheme;
/* change it to an FTP URL */
rc = curl_url_set(url, CURLUPART_SCHEME, "ftp", 0);
}
curl_url_cleanup(url);
.fi
.SH AVAILABILITY
Added in curl 7.63.0
.SH "SEE ALSO"
.BR curl_url_cleanup "(3), " curl_url "(3), " curl_url_get "(3), "
.BR curl_url_dup "(3), "

30
docs/libcurl/symbols-in-versions
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@ -721,6 +721,36 @@ CURLSSLSET_NO_BACKENDS 7.56.0
CURLSSLSET_OK 7.56.0
CURLSSLSET_TOO_LATE 7.56.0
CURLSSLSET_UNKNOWN_BACKEND 7.56.0
CURLUPART_FRAGMENT 7.62.0
CURLUPART_HOST 7.62.0
CURLUPART_OPTIONS 7.62.0
CURLUPART_PASSWORD 7.62.0
CURLUPART_PATH 7.62.0
CURLUPART_PORT 7.62.0
CURLUPART_QUERY 7.62.0
CURLUPART_SCHEME 7.62.0
CURLUPART_URL 7.62.0
CURLUPART_USER 7.62.0
CURLUE_BAD_HANDLE 7.62.0
CURLUE_BAD_PARTPOINTER 7.62.0
CURLUE_BAD_PORT_NUMBER 7.62.0
CURLUE_MALFORMED_INPUT 7.62.0
CURLUE_NO_FRAGMENT 7.62.0
CURLUE_NO_HOST 7.62.0
CURLUE_NO_OPTIONS 7.62.0
CURLUE_NO_PASSWORD 7.62.0
CURLUE_NO_PATH 7.62.0
CURLUE_NO_PORT 7.62.0
CURLUE_NO_QUERY 7.62.0
CURLUE_NO_SCHEME 7.62.0
CURLUE_NO_USER 7.62.0
CURLUE_OK 7.62.0
CURLUE_OUT_OF_MEMORY 7.62.0
CURLUE_RELATIVE 7.62.0
CURLUE_UNKNOWN_PART 7.62.0
CURLUE_UNSUPPORTED_SCHEME 7.62.0
CURLUE_URLDECODE 7.62.0
CURLUE_USER_NOT_ALLOWED 7.62.0
CURLUSESSL_ALL 7.17.0
CURLUSESSL_CONTROL 7.17.0
CURLUSESSL_NONE 7.17.0