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2692 lines
67 KiB
2692 lines
67 KiB
/*
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|
* HTTP support routines for CUPS.
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|
*
|
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* Copyright 2007-2019 by Apple Inc.
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* Copyright 1997-2007 by Easy Software Products, all rights reserved.
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*
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* Licensed under Apache License v2.0. See the file "LICENSE" for more
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* information.
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*/
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|
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/*
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* Include necessary headers...
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*/
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#include "cups-private.h"
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#include "debug-internal.h"
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#ifdef HAVE_DNSSD
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# include <dns_sd.h>
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# ifdef _WIN32
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# include <io.h>
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# elif defined(HAVE_POLL)
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# include <poll.h>
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# else
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# include <sys/select.h>
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# endif /* _WIN32 */
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#elif defined(HAVE_AVAHI)
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# include <avahi-client/client.h>
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# include <avahi-client/lookup.h>
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# include <avahi-common/simple-watch.h>
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#endif /* HAVE_DNSSD */
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|
|
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/*
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* Local types...
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*/
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typedef struct _http_uribuf_s /* URI buffer */
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{
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#ifdef HAVE_AVAHI
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AvahiSimplePoll *poll; /* Poll state */
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#endif /* HAVE_AVAHI */
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char *buffer; /* Pointer to buffer */
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size_t bufsize; /* Size of buffer */
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int options; /* Options passed to _httpResolveURI */
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const char *resource; /* Resource from URI */
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const char *uuid; /* UUID from URI */
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} _http_uribuf_t;
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|
|
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/*
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* Local globals...
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*/
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static const char * const http_days[7] =/* Days of the week */
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{
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"Sun",
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"Mon",
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"Tue",
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"Wed",
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"Thu",
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"Fri",
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"Sat"
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};
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static const char * const http_months[12] =
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{ /* Months of the year */
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"Jan",
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"Feb",
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"Mar",
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"Apr",
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"May",
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"Jun",
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"Jul",
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"Aug",
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"Sep",
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"Oct",
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"Nov",
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"Dec"
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};
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static const char * const http_states[] =
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{ /* HTTP state strings */
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"HTTP_STATE_ERROR",
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"HTTP_STATE_WAITING",
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"HTTP_STATE_OPTIONS",
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"HTTP_STATE_GET",
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"HTTP_STATE_GET_SEND",
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"HTTP_STATE_HEAD",
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"HTTP_STATE_POST",
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"HTTP_STATE_POST_RECV",
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"HTTP_STATE_POST_SEND",
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"HTTP_STATE_PUT",
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"HTTP_STATE_PUT_RECV",
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"HTTP_STATE_DELETE",
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"HTTP_STATE_TRACE",
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"HTTP_STATE_CONNECT",
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"HTTP_STATE_STATUS",
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"HTTP_STATE_UNKNOWN_METHOD",
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"HTTP_STATE_UNKNOWN_VERSION"
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};
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|
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/*
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* Local functions...
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*/
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static const char *http_copy_decode(char *dst, const char *src,
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int dstsize, const char *term,
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int decode);
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static char *http_copy_encode(char *dst, const char *src,
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char *dstend, const char *reserved,
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const char *term, int encode);
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#ifdef HAVE_DNSSD
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static void DNSSD_API http_resolve_cb(DNSServiceRef sdRef,
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DNSServiceFlags flags,
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uint32_t interfaceIndex,
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DNSServiceErrorType errorCode,
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const char *fullName,
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const char *hostTarget,
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uint16_t port, uint16_t txtLen,
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const unsigned char *txtRecord,
|
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void *context);
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#endif /* HAVE_DNSSD */
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#ifdef HAVE_AVAHI
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static void http_client_cb(AvahiClient *client,
|
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AvahiClientState state, void *simple_poll);
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static int http_poll_cb(struct pollfd *pollfds, unsigned int num_pollfds,
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int timeout, void *context);
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static void http_resolve_cb(AvahiServiceResolver *resolver,
|
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AvahiIfIndex interface,
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AvahiProtocol protocol,
|
|
AvahiResolverEvent event,
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const char *name, const char *type,
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const char *domain, const char *host_name,
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const AvahiAddress *address, uint16_t port,
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AvahiStringList *txt,
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AvahiLookupResultFlags flags, void *context);
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#endif /* HAVE_AVAHI */
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|
|
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/*
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* 'httpAssembleURI()' - Assemble a uniform resource identifier from its
|
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* components.
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*
|
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* This function escapes reserved characters in the URI depending on the
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|
* value of the "encoding" argument. You should use this function in
|
|
* place of traditional string functions whenever you need to create a
|
|
* URI string.
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*
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|
* @since CUPS 1.2/macOS 10.5@
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*/
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http_uri_status_t /* O - URI status */
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httpAssembleURI(
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http_uri_coding_t encoding, /* I - Encoding flags */
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char *uri, /* I - URI buffer */
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int urilen, /* I - Size of URI buffer */
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const char *scheme, /* I - Scheme name */
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const char *username, /* I - Username */
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const char *host, /* I - Hostname or address */
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int port, /* I - Port number */
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const char *resource) /* I - Resource */
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{
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char *ptr, /* Pointer into URI buffer */
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*end; /* End of URI buffer */
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|
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/*
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* Range check input...
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*/
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if (!uri || urilen < 1 || !scheme || port < 0)
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{
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if (uri)
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*uri = '\0';
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return (HTTP_URI_STATUS_BAD_ARGUMENTS);
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}
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/*
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* Assemble the URI starting with the scheme...
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*/
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end = uri + urilen - 1;
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ptr = http_copy_encode(uri, scheme, end, NULL, NULL, 0);
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if (!ptr)
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goto assemble_overflow;
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if (!strcmp(scheme, "geo") || !strcmp(scheme, "mailto") || !strcmp(scheme, "tel"))
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{
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/*
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* geo:, mailto:, and tel: only have :, no //...
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*/
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if (ptr < end)
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*ptr++ = ':';
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else
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goto assemble_overflow;
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}
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else
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{
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/*
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* Schemes other than geo:, mailto:, and tel: typically have //...
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*/
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if ((ptr + 2) < end)
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{
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*ptr++ = ':';
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*ptr++ = '/';
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*ptr++ = '/';
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}
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else
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goto assemble_overflow;
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}
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/*
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* Next the username and hostname, if any...
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*/
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if (host)
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{
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const char *hostptr; /* Pointer into hostname */
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int have_ipv6; /* Do we have an IPv6 address? */
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if (username && *username)
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{
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/*
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* Add username@ first...
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*/
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ptr = http_copy_encode(ptr, username, end, "/?#[]@", NULL,
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encoding & HTTP_URI_CODING_USERNAME);
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if (!ptr)
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goto assemble_overflow;
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if (ptr < end)
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*ptr++ = '@';
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else
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goto assemble_overflow;
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}
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/*
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* Then add the hostname. Since IPv6 is a particular pain to deal
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* with, we have several special cases to deal with. If we get
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* an IPv6 address with brackets around it, assume it is already in
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* URI format. Since DNS-SD service names can sometimes look like
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* raw IPv6 addresses, we specifically look for "._tcp" in the name,
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* too...
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*/
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for (hostptr = host,
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have_ipv6 = strchr(host, ':') && !strstr(host, "._tcp");
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*hostptr && have_ipv6;
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hostptr ++)
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if (*hostptr != ':' && !isxdigit(*hostptr & 255))
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{
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have_ipv6 = *hostptr == '%';
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break;
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}
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if (have_ipv6)
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{
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/*
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* We have a raw IPv6 address...
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*/
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if (strchr(host, '%') && !(encoding & HTTP_URI_CODING_RFC6874))
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{
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/*
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* We have a link-local address, add "[v1." prefix...
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*/
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if ((ptr + 4) < end)
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{
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*ptr++ = '[';
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*ptr++ = 'v';
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*ptr++ = '1';
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*ptr++ = '.';
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}
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else
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goto assemble_overflow;
|
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}
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else
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{
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/*
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* We have a normal (or RFC 6874 link-local) address, add "[" prefix...
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*/
|
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if (ptr < end)
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*ptr++ = '[';
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else
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goto assemble_overflow;
|
|
}
|
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|
|
/*
|
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* Copy the rest of the IPv6 address, and terminate with "]".
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*/
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while (ptr < end && *host)
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{
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if (*host == '%')
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{
|
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/*
|
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* Convert/encode zone separator
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*/
|
|
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if (encoding & HTTP_URI_CODING_RFC6874)
|
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{
|
|
if (ptr >= (end - 2))
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goto assemble_overflow;
|
|
|
|
*ptr++ = '%';
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|
*ptr++ = '2';
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|
*ptr++ = '5';
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|
}
|
|
else
|
|
*ptr++ = '+';
|
|
|
|
host ++;
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|
}
|
|
else
|
|
*ptr++ = *host++;
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|
}
|
|
|
|
if (*host)
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|
goto assemble_overflow;
|
|
|
|
if (ptr < end)
|
|
*ptr++ = ']';
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else
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goto assemble_overflow;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Otherwise, just copy the host string (the extra chars are not in the
|
|
* "reg-name" ABNF rule; anything <= SP or >= DEL plus % gets automatically
|
|
* percent-encoded.
|
|
*/
|
|
|
|
ptr = http_copy_encode(ptr, host, end, "\"#/:<>?@[\\]^`{|}", NULL,
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encoding & HTTP_URI_CODING_HOSTNAME);
|
|
|
|
if (!ptr)
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goto assemble_overflow;
|
|
}
|
|
|
|
/*
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* Finish things off with the port number...
|
|
*/
|
|
|
|
if (port > 0)
|
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{
|
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snprintf(ptr, (size_t)(end - ptr + 1), ":%d", port);
|
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ptr += strlen(ptr);
|
|
|
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if (ptr >= end)
|
|
goto assemble_overflow;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Last but not least, add the resource string...
|
|
*/
|
|
|
|
if (resource)
|
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{
|
|
char *query; /* Pointer to query string */
|
|
|
|
|
|
/*
|
|
* Copy the resource string up to the query string if present...
|
|
*/
|
|
|
|
query = strchr(resource, '?');
|
|
ptr = http_copy_encode(ptr, resource, end, NULL, "?",
|
|
encoding & HTTP_URI_CODING_RESOURCE);
|
|
if (!ptr)
|
|
goto assemble_overflow;
|
|
|
|
if (query)
|
|
{
|
|
/*
|
|
* Copy query string without encoding...
|
|
*/
|
|
|
|
ptr = http_copy_encode(ptr, query, end, NULL, NULL,
|
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encoding & HTTP_URI_CODING_QUERY);
|
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if (!ptr)
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goto assemble_overflow;
|
|
}
|
|
}
|
|
else if (ptr < end)
|
|
*ptr++ = '/';
|
|
else
|
|
goto assemble_overflow;
|
|
|
|
/*
|
|
* Nul-terminate the URI buffer and return with no errors...
|
|
*/
|
|
|
|
*ptr = '\0';
|
|
|
|
return (HTTP_URI_STATUS_OK);
|
|
|
|
/*
|
|
* Clear the URI string and return an overflow error; I don't usually
|
|
* like goto's, but in this case it makes sense...
|
|
*/
|
|
|
|
assemble_overflow:
|
|
|
|
*uri = '\0';
|
|
return (HTTP_URI_STATUS_OVERFLOW);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpAssembleURIf()' - Assemble a uniform resource identifier from its
|
|
* components with a formatted resource.
|
|
*
|
|
* This function creates a formatted version of the resource string
|
|
* argument "resourcef" and escapes reserved characters in the URI
|
|
* depending on the value of the "encoding" argument. You should use
|
|
* this function in place of traditional string functions whenever
|
|
* you need to create a URI string.
|
|
*
|
|
* @since CUPS 1.2/macOS 10.5@
|
|
*/
|
|
|
|
http_uri_status_t /* O - URI status */
|
|
httpAssembleURIf(
|
|
http_uri_coding_t encoding, /* I - Encoding flags */
|
|
char *uri, /* I - URI buffer */
|
|
int urilen, /* I - Size of URI buffer */
|
|
const char *scheme, /* I - Scheme name */
|
|
const char *username, /* I - Username */
|
|
const char *host, /* I - Hostname or address */
|
|
int port, /* I - Port number */
|
|
const char *resourcef, /* I - Printf-style resource */
|
|
...) /* I - Additional arguments as needed */
|
|
{
|
|
va_list ap; /* Pointer to additional arguments */
|
|
char resource[1024]; /* Formatted resource string */
|
|
int bytes; /* Bytes in formatted string */
|
|
|
|
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!uri || urilen < 1 || !scheme || port < 0 || !resourcef)
|
|
{
|
|
if (uri)
|
|
*uri = '\0';
|
|
|
|
return (HTTP_URI_STATUS_BAD_ARGUMENTS);
|
|
}
|
|
|
|
/*
|
|
* Format the resource string and assemble the URI...
|
|
*/
|
|
|
|
va_start(ap, resourcef);
|
|
bytes = vsnprintf(resource, sizeof(resource), resourcef, ap);
|
|
va_end(ap);
|
|
|
|
if ((size_t)bytes >= sizeof(resource))
|
|
{
|
|
*uri = '\0';
|
|
return (HTTP_URI_STATUS_OVERFLOW);
|
|
}
|
|
else
|
|
return (httpAssembleURI(encoding, uri, urilen, scheme, username, host,
|
|
port, resource));
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpAssembleUUID()' - Assemble a name-based UUID URN conforming to RFC 4122.
|
|
*
|
|
* This function creates a unique 128-bit identifying number using the server
|
|
* name, port number, random data, and optionally an object name and/or object
|
|
* number. The result is formatted as a UUID URN as defined in RFC 4122.
|
|
*
|
|
* The buffer needs to be at least 46 bytes in size.
|
|
*
|
|
* @since CUPS 1.7/macOS 10.9@
|
|
*/
|
|
|
|
char * /* I - UUID string */
|
|
httpAssembleUUID(const char *server, /* I - Server name */
|
|
int port, /* I - Port number */
|
|
const char *name, /* I - Object name or NULL */
|
|
int number, /* I - Object number or 0 */
|
|
char *buffer, /* I - String buffer */
|
|
size_t bufsize) /* I - Size of buffer */
|
|
{
|
|
char data[1024]; /* Source string for MD5 */
|
|
unsigned char md5sum[16]; /* MD5 digest/sum */
|
|
|
|
|
|
/*
|
|
* Build a version 3 UUID conforming to RFC 4122.
|
|
*
|
|
* Start with the MD5 sum of the server, port, object name and
|
|
* number, and some random data on the end.
|
|
*/
|
|
|
|
snprintf(data, sizeof(data), "%s:%d:%s:%d:%04x:%04x", server,
|
|
port, name ? name : server, number,
|
|
(unsigned)CUPS_RAND() & 0xffff, (unsigned)CUPS_RAND() & 0xffff);
|
|
|
|
cupsHashData("md5", (unsigned char *)data, strlen(data), md5sum, sizeof(md5sum));
|
|
|
|
/*
|
|
* Generate the UUID from the MD5...
|
|
*/
|
|
|
|
snprintf(buffer, bufsize,
|
|
"urn:uuid:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
|
|
"%02x%02x%02x%02x%02x%02x",
|
|
md5sum[0], md5sum[1], md5sum[2], md5sum[3], md5sum[4], md5sum[5],
|
|
(md5sum[6] & 15) | 0x30, md5sum[7], (md5sum[8] & 0x3f) | 0x40,
|
|
md5sum[9], md5sum[10], md5sum[11], md5sum[12], md5sum[13],
|
|
md5sum[14], md5sum[15]);
|
|
|
|
return (buffer);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpDecode64()' - Base64-decode a string.
|
|
*
|
|
* This function is deprecated. Use the httpDecode64_2() function instead
|
|
* which provides buffer length arguments.
|
|
*
|
|
* @deprecated@ @exclude all@
|
|
*/
|
|
|
|
char * /* O - Decoded string */
|
|
httpDecode64(char *out, /* I - String to write to */
|
|
const char *in) /* I - String to read from */
|
|
{
|
|
int outlen; /* Output buffer length */
|
|
|
|
|
|
/*
|
|
* Use the old maximum buffer size for binary compatibility...
|
|
*/
|
|
|
|
outlen = 512;
|
|
|
|
return (httpDecode64_2(out, &outlen, in));
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpDecode64_2()' - Base64-decode a string.
|
|
*
|
|
* The caller must initialize "outlen" to the maximum size of the decoded
|
|
* string before calling @code httpDecode64_2@. On return "outlen" contains the
|
|
* decoded length of the string.
|
|
*
|
|
* @since CUPS 1.1.21/macOS 10.4@
|
|
*/
|
|
|
|
char * /* O - Decoded string */
|
|
httpDecode64_2(char *out, /* I - String to write to */
|
|
int *outlen, /* IO - Size of output string */
|
|
const char *in) /* I - String to read from */
|
|
{
|
|
int pos; /* Bit position */
|
|
unsigned base64; /* Value of this character */
|
|
char *outptr, /* Output pointer */
|
|
*outend; /* End of output buffer */
|
|
|
|
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!out || !outlen || *outlen < 1 || !in)
|
|
return (NULL);
|
|
|
|
if (!*in)
|
|
{
|
|
*out = '\0';
|
|
*outlen = 0;
|
|
|
|
return (out);
|
|
}
|
|
|
|
/*
|
|
* Convert from base-64 to bytes...
|
|
*/
|
|
|
|
for (outptr = out, outend = out + *outlen - 1, pos = 0; *in != '\0'; in ++)
|
|
{
|
|
/*
|
|
* Decode this character into a number from 0 to 63...
|
|
*/
|
|
|
|
if (*in >= 'A' && *in <= 'Z')
|
|
base64 = (unsigned)(*in - 'A');
|
|
else if (*in >= 'a' && *in <= 'z')
|
|
base64 = (unsigned)(*in - 'a' + 26);
|
|
else if (*in >= '0' && *in <= '9')
|
|
base64 = (unsigned)(*in - '0' + 52);
|
|
else if (*in == '+')
|
|
base64 = 62;
|
|
else if (*in == '/')
|
|
base64 = 63;
|
|
else if (*in == '=')
|
|
break;
|
|
else
|
|
continue;
|
|
|
|
/*
|
|
* Store the result in the appropriate chars...
|
|
*/
|
|
|
|
switch (pos)
|
|
{
|
|
case 0 :
|
|
if (outptr < outend)
|
|
*outptr = (char)(base64 << 2);
|
|
pos ++;
|
|
break;
|
|
case 1 :
|
|
if (outptr < outend)
|
|
*outptr++ |= (char)((base64 >> 4) & 3);
|
|
if (outptr < outend)
|
|
*outptr = (char)((base64 << 4) & 255);
|
|
pos ++;
|
|
break;
|
|
case 2 :
|
|
if (outptr < outend)
|
|
*outptr++ |= (char)((base64 >> 2) & 15);
|
|
if (outptr < outend)
|
|
*outptr = (char)((base64 << 6) & 255);
|
|
pos ++;
|
|
break;
|
|
case 3 :
|
|
if (outptr < outend)
|
|
*outptr++ |= (char)base64;
|
|
pos = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
*outptr = '\0';
|
|
|
|
/*
|
|
* Return the decoded string and size...
|
|
*/
|
|
|
|
*outlen = (int)(outptr - out);
|
|
|
|
return (out);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpEncode64()' - Base64-encode a string.
|
|
*
|
|
* This function is deprecated. Use the httpEncode64_2() function instead
|
|
* which provides buffer length arguments.
|
|
*
|
|
* @deprecated@ @exclude all@
|
|
*/
|
|
|
|
char * /* O - Encoded string */
|
|
httpEncode64(char *out, /* I - String to write to */
|
|
const char *in) /* I - String to read from */
|
|
{
|
|
return (httpEncode64_2(out, 512, in, (int)strlen(in)));
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpEncode64_2()' - Base64-encode a string.
|
|
*
|
|
* @since CUPS 1.1.21/macOS 10.4@
|
|
*/
|
|
|
|
char * /* O - Encoded string */
|
|
httpEncode64_2(char *out, /* I - String to write to */
|
|
int outlen, /* I - Maximum size of output string */
|
|
const char *in, /* I - String to read from */
|
|
int inlen) /* I - Size of input string */
|
|
{
|
|
char *outptr, /* Output pointer */
|
|
*outend; /* End of output buffer */
|
|
static const char base64[] = /* Base64 characters... */
|
|
{
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
"abcdefghijklmnopqrstuvwxyz"
|
|
"0123456789"
|
|
"+/"
|
|
};
|
|
|
|
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!out || outlen < 1 || !in)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Convert bytes to base-64...
|
|
*/
|
|
|
|
for (outptr = out, outend = out + outlen - 1; inlen > 0; in ++, inlen --)
|
|
{
|
|
/*
|
|
* Encode the up to 3 characters as 4 Base64 numbers...
|
|
*/
|
|
|
|
if (outptr < outend)
|
|
*outptr ++ = base64[(in[0] & 255) >> 2];
|
|
|
|
if (outptr < outend)
|
|
{
|
|
if (inlen > 1)
|
|
*outptr ++ = base64[(((in[0] & 255) << 4) | ((in[1] & 255) >> 4)) & 63];
|
|
else
|
|
*outptr ++ = base64[((in[0] & 255) << 4) & 63];
|
|
}
|
|
|
|
in ++;
|
|
inlen --;
|
|
if (inlen <= 0)
|
|
{
|
|
if (outptr < outend)
|
|
*outptr ++ = '=';
|
|
if (outptr < outend)
|
|
*outptr ++ = '=';
|
|
break;
|
|
}
|
|
|
|
if (outptr < outend)
|
|
{
|
|
if (inlen > 1)
|
|
*outptr ++ = base64[(((in[0] & 255) << 2) | ((in[1] & 255) >> 6)) & 63];
|
|
else
|
|
*outptr ++ = base64[((in[0] & 255) << 2) & 63];
|
|
}
|
|
|
|
in ++;
|
|
inlen --;
|
|
if (inlen <= 0)
|
|
{
|
|
if (outptr < outend)
|
|
*outptr ++ = '=';
|
|
break;
|
|
}
|
|
|
|
if (outptr < outend)
|
|
*outptr ++ = base64[in[0] & 63];
|
|
}
|
|
|
|
*outptr = '\0';
|
|
|
|
/*
|
|
* Return the encoded string...
|
|
*/
|
|
|
|
return (out);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpGetDateString()' - Get a formatted date/time string from a time value.
|
|
*
|
|
* @deprecated@ @exclude all@
|
|
*/
|
|
|
|
const char * /* O - Date/time string */
|
|
httpGetDateString(time_t t) /* I - Time in seconds */
|
|
{
|
|
_cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
|
|
|
|
|
|
return (httpGetDateString2(t, cg->http_date, sizeof(cg->http_date)));
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpGetDateString2()' - Get a formatted date/time string from a time value.
|
|
*
|
|
* @since CUPS 1.2/macOS 10.5@
|
|
*/
|
|
|
|
const char * /* O - Date/time string */
|
|
httpGetDateString2(time_t t, /* I - Time in seconds */
|
|
char *s, /* I - String buffer */
|
|
int slen) /* I - Size of string buffer */
|
|
{
|
|
struct tm tdate; /* UNIX date/time data */
|
|
|
|
|
|
gmtime_r(&t, &tdate);
|
|
|
|
snprintf(s, (size_t)slen, "%s, %02d %s %d %02d:%02d:%02d GMT", http_days[tdate.tm_wday], tdate.tm_mday, http_months[tdate.tm_mon], tdate.tm_year + 1900, tdate.tm_hour, tdate.tm_min, tdate.tm_sec);
|
|
|
|
return (s);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpGetDateTime()' - Get a time value from a formatted date/time string.
|
|
*/
|
|
|
|
time_t /* O - Time in seconds */
|
|
httpGetDateTime(const char *s) /* I - Date/time string */
|
|
{
|
|
int i; /* Looping var */
|
|
char mon[16]; /* Abbreviated month name */
|
|
int day, year; /* Day of month and year */
|
|
int hour, min, sec; /* Time */
|
|
int days; /* Number of days since 1970 */
|
|
static const int normal_days[] = /* Days to a month, normal years */
|
|
{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 };
|
|
static const int leap_days[] = /* Days to a month, leap years */
|
|
{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 };
|
|
|
|
|
|
DEBUG_printf(("2httpGetDateTime(s=\"%s\")", s));
|
|
|
|
/*
|
|
* Extract the date and time from the formatted string...
|
|
*/
|
|
|
|
if (sscanf(s, "%*s%d%15s%d%d:%d:%d", &day, mon, &year, &hour, &min, &sec) < 6)
|
|
return (0);
|
|
|
|
DEBUG_printf(("4httpGetDateTime: day=%d, mon=\"%s\", year=%d, hour=%d, "
|
|
"min=%d, sec=%d", day, mon, year, hour, min, sec));
|
|
|
|
/*
|
|
* Convert the month name to a number from 0 to 11.
|
|
*/
|
|
|
|
for (i = 0; i < 12; i ++)
|
|
if (!_cups_strcasecmp(mon, http_months[i]))
|
|
break;
|
|
|
|
if (i >= 12)
|
|
return (0);
|
|
|
|
DEBUG_printf(("4httpGetDateTime: i=%d", i));
|
|
|
|
/*
|
|
* Now convert the date and time to a UNIX time value in seconds since
|
|
* 1970. We can't use mktime() since the timezone may not be UTC but
|
|
* the date/time string *is* UTC.
|
|
*/
|
|
|
|
if ((year & 3) == 0 && ((year % 100) != 0 || (year % 400) == 0))
|
|
days = leap_days[i] + day - 1;
|
|
else
|
|
days = normal_days[i] + day - 1;
|
|
|
|
DEBUG_printf(("4httpGetDateTime: days=%d", days));
|
|
|
|
days += (year - 1970) * 365 + /* 365 days per year (normally) */
|
|
((year - 1) / 4 - 492) - /* + leap days */
|
|
((year - 1) / 100 - 19) + /* - 100 year days */
|
|
((year - 1) / 400 - 4); /* + 400 year days */
|
|
|
|
DEBUG_printf(("4httpGetDateTime: days=%d\n", days));
|
|
|
|
return (days * 86400 + hour * 3600 + min * 60 + sec);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpSeparate()' - Separate a Universal Resource Identifier into its
|
|
* components.
|
|
*
|
|
* This function is deprecated; use the httpSeparateURI() function instead.
|
|
*
|
|
* @deprecated@ @exclude all@
|
|
*/
|
|
|
|
void
|
|
httpSeparate(const char *uri, /* I - Universal Resource Identifier */
|
|
char *scheme, /* O - Scheme [32] (http, https, etc.) */
|
|
char *username, /* O - Username [1024] */
|
|
char *host, /* O - Hostname [1024] */
|
|
int *port, /* O - Port number to use */
|
|
char *resource) /* O - Resource/filename [1024] */
|
|
{
|
|
httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, 32, username,
|
|
HTTP_MAX_URI, host, HTTP_MAX_URI, port, resource,
|
|
HTTP_MAX_URI);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpSeparate2()' - Separate a Universal Resource Identifier into its
|
|
* components.
|
|
*
|
|
* This function is deprecated; use the httpSeparateURI() function instead.
|
|
*
|
|
* @since CUPS 1.1.21/macOS 10.4@
|
|
* @deprecated@ @exclude all@
|
|
*/
|
|
|
|
void
|
|
httpSeparate2(const char *uri, /* I - Universal Resource Identifier */
|
|
char *scheme, /* O - Scheme (http, https, etc.) */
|
|
int schemelen, /* I - Size of scheme buffer */
|
|
char *username, /* O - Username */
|
|
int usernamelen, /* I - Size of username buffer */
|
|
char *host, /* O - Hostname */
|
|
int hostlen, /* I - Size of hostname buffer */
|
|
int *port, /* O - Port number to use */
|
|
char *resource, /* O - Resource/filename */
|
|
int resourcelen) /* I - Size of resource buffer */
|
|
{
|
|
httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, schemelen, username,
|
|
usernamelen, host, hostlen, port, resource, resourcelen);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpSeparateURI()' - Separate a Universal Resource Identifier into its
|
|
* components.
|
|
*
|
|
* @since CUPS 1.2/macOS 10.5@
|
|
*/
|
|
|
|
http_uri_status_t /* O - Result of separation */
|
|
httpSeparateURI(
|
|
http_uri_coding_t decoding, /* I - Decoding flags */
|
|
const char *uri, /* I - Universal Resource Identifier */
|
|
char *scheme, /* O - Scheme (http, https, etc.) */
|
|
int schemelen, /* I - Size of scheme buffer */
|
|
char *username, /* O - Username */
|
|
int usernamelen, /* I - Size of username buffer */
|
|
char *host, /* O - Hostname */
|
|
int hostlen, /* I - Size of hostname buffer */
|
|
int *port, /* O - Port number to use */
|
|
char *resource, /* O - Resource/filename */
|
|
int resourcelen) /* I - Size of resource buffer */
|
|
{
|
|
char *ptr, /* Pointer into string... */
|
|
*end; /* End of string */
|
|
const char *sep; /* Separator character */
|
|
http_uri_status_t status; /* Result of separation */
|
|
|
|
|
|
/*
|
|
* Initialize everything to blank...
|
|
*/
|
|
|
|
if (scheme && schemelen > 0)
|
|
*scheme = '\0';
|
|
|
|
if (username && usernamelen > 0)
|
|
*username = '\0';
|
|
|
|
if (host && hostlen > 0)
|
|
*host = '\0';
|
|
|
|
if (port)
|
|
*port = 0;
|
|
|
|
if (resource && resourcelen > 0)
|
|
*resource = '\0';
|
|
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!uri || !port || !scheme || schemelen <= 0 || !username ||
|
|
usernamelen <= 0 || !host || hostlen <= 0 || !resource ||
|
|
resourcelen <= 0)
|
|
return (HTTP_URI_STATUS_BAD_ARGUMENTS);
|
|
|
|
if (!*uri)
|
|
return (HTTP_URI_STATUS_BAD_URI);
|
|
|
|
/*
|
|
* Grab the scheme portion of the URI...
|
|
*/
|
|
|
|
status = HTTP_URI_STATUS_OK;
|
|
|
|
if (!strncmp(uri, "//", 2))
|
|
{
|
|
/*
|
|
* Workaround for HP IPP client bug...
|
|
*/
|
|
|
|
strlcpy(scheme, "ipp", (size_t)schemelen);
|
|
status = HTTP_URI_STATUS_MISSING_SCHEME;
|
|
}
|
|
else if (*uri == '/')
|
|
{
|
|
/*
|
|
* Filename...
|
|
*/
|
|
|
|
strlcpy(scheme, "file", (size_t)schemelen);
|
|
status = HTTP_URI_STATUS_MISSING_SCHEME;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Standard URI with scheme...
|
|
*/
|
|
|
|
for (ptr = scheme, end = scheme + schemelen - 1;
|
|
*uri && *uri != ':' && ptr < end;)
|
|
if (strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
"abcdefghijklmnopqrstuvwxyz"
|
|
"0123456789-+.", *uri) != NULL)
|
|
*ptr++ = *uri++;
|
|
else
|
|
break;
|
|
|
|
*ptr = '\0';
|
|
|
|
if (*uri != ':' || *scheme == '.' || !*scheme)
|
|
{
|
|
*scheme = '\0';
|
|
return (HTTP_URI_STATUS_BAD_SCHEME);
|
|
}
|
|
|
|
uri ++;
|
|
}
|
|
|
|
/*
|
|
* Set the default port number...
|
|
*/
|
|
|
|
if (!strcmp(scheme, "http"))
|
|
*port = 80;
|
|
else if (!strcmp(scheme, "https"))
|
|
*port = 443;
|
|
else if (!strcmp(scheme, "ipp") || !strcmp(scheme, "ipps"))
|
|
*port = 631;
|
|
else if (!_cups_strcasecmp(scheme, "lpd"))
|
|
*port = 515;
|
|
else if (!strcmp(scheme, "socket")) /* Not yet registered with IANA... */
|
|
*port = 9100;
|
|
else if (strcmp(scheme, "file") && strcmp(scheme, "mailto") && strcmp(scheme, "tel"))
|
|
status = HTTP_URI_STATUS_UNKNOWN_SCHEME;
|
|
|
|
/*
|
|
* Now see if we have a hostname...
|
|
*/
|
|
|
|
if (!strncmp(uri, "//", 2))
|
|
{
|
|
/*
|
|
* Yes, extract it...
|
|
*/
|
|
|
|
uri += 2;
|
|
|
|
/*
|
|
* Grab the username, if any...
|
|
*/
|
|
|
|
if ((sep = strpbrk(uri, "@/")) != NULL && *sep == '@')
|
|
{
|
|
/*
|
|
* Get a username:password combo...
|
|
*/
|
|
|
|
uri = http_copy_decode(username, uri, usernamelen, "@",
|
|
decoding & HTTP_URI_CODING_USERNAME);
|
|
|
|
if (!uri)
|
|
{
|
|
*username = '\0';
|
|
return (HTTP_URI_STATUS_BAD_USERNAME);
|
|
}
|
|
|
|
uri ++;
|
|
}
|
|
|
|
/*
|
|
* Then the hostname/IP address...
|
|
*/
|
|
|
|
if (*uri == '[')
|
|
{
|
|
/*
|
|
* Grab IPv6 address...
|
|
*/
|
|
|
|
uri ++;
|
|
if (*uri == 'v')
|
|
{
|
|
/*
|
|
* Skip IPvFuture ("vXXXX.") prefix...
|
|
*/
|
|
|
|
uri ++;
|
|
|
|
while (isxdigit(*uri & 255))
|
|
uri ++;
|
|
|
|
if (*uri != '.')
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
|
|
uri ++;
|
|
}
|
|
|
|
uri = http_copy_decode(host, uri, hostlen, "]",
|
|
decoding & HTTP_URI_CODING_HOSTNAME);
|
|
|
|
if (!uri)
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
|
|
/*
|
|
* Validate value...
|
|
*/
|
|
|
|
if (*uri != ']')
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
|
|
uri ++;
|
|
|
|
for (ptr = host; *ptr; ptr ++)
|
|
if (*ptr == '+')
|
|
{
|
|
/*
|
|
* Convert zone separator to % and stop here...
|
|
*/
|
|
|
|
*ptr = '%';
|
|
break;
|
|
}
|
|
else if (*ptr == '%')
|
|
{
|
|
/*
|
|
* Stop at zone separator (RFC 6874)
|
|
*/
|
|
|
|
break;
|
|
}
|
|
else if (*ptr != ':' && *ptr != '.' && !isxdigit(*ptr & 255))
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Validate the hostname or IPv4 address first...
|
|
*/
|
|
|
|
for (ptr = (char *)uri; *ptr; ptr ++)
|
|
if (strchr(":?/", *ptr))
|
|
break;
|
|
else if (!strchr("abcdefghijklmnopqrstuvwxyz" /* unreserved */
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" /* unreserved */
|
|
"0123456789" /* unreserved */
|
|
"-._~" /* unreserved */
|
|
"%" /* pct-encoded */
|
|
"!$&'()*+,;=" /* sub-delims */
|
|
"\\", *ptr)) /* SMB domain */
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
|
|
/*
|
|
* Then copy the hostname or IPv4 address to the buffer...
|
|
*/
|
|
|
|
uri = http_copy_decode(host, uri, hostlen, ":?/",
|
|
decoding & HTTP_URI_CODING_HOSTNAME);
|
|
|
|
if (!uri)
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Validate hostname for file scheme - only empty and localhost are
|
|
* acceptable.
|
|
*/
|
|
|
|
if (!strcmp(scheme, "file") && strcmp(host, "localhost") && host[0])
|
|
{
|
|
*host = '\0';
|
|
return (HTTP_URI_STATUS_BAD_HOSTNAME);
|
|
}
|
|
|
|
/*
|
|
* See if we have a port number...
|
|
*/
|
|
|
|
if (*uri == ':')
|
|
{
|
|
/*
|
|
* Yes, collect the port number...
|
|
*/
|
|
|
|
if (!isdigit(uri[1] & 255))
|
|
{
|
|
*port = 0;
|
|
return (HTTP_URI_STATUS_BAD_PORT);
|
|
}
|
|
|
|
*port = (int)strtol(uri + 1, (char **)&uri, 10);
|
|
|
|
if (*port <= 0 || *port > 65535)
|
|
{
|
|
*port = 0;
|
|
return (HTTP_URI_STATUS_BAD_PORT);
|
|
}
|
|
|
|
if (*uri != '/' && *uri)
|
|
{
|
|
*port = 0;
|
|
return (HTTP_URI_STATUS_BAD_PORT);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The remaining portion is the resource string...
|
|
*/
|
|
|
|
if (*uri == '?' || !*uri)
|
|
{
|
|
/*
|
|
* Hostname but no path...
|
|
*/
|
|
|
|
status = HTTP_URI_STATUS_MISSING_RESOURCE;
|
|
*resource = '/';
|
|
|
|
/*
|
|
* Copy any query string...
|
|
*/
|
|
|
|
if (*uri == '?')
|
|
uri = http_copy_decode(resource + 1, uri, resourcelen - 1, NULL,
|
|
decoding & HTTP_URI_CODING_QUERY);
|
|
else
|
|
resource[1] = '\0';
|
|
}
|
|
else
|
|
{
|
|
uri = http_copy_decode(resource, uri, resourcelen, "?",
|
|
decoding & HTTP_URI_CODING_RESOURCE);
|
|
|
|
if (uri && *uri == '?')
|
|
{
|
|
/*
|
|
* Concatenate any query string...
|
|
*/
|
|
|
|
char *resptr = resource + strlen(resource);
|
|
|
|
uri = http_copy_decode(resptr, uri,
|
|
resourcelen - (int)(resptr - resource), NULL,
|
|
decoding & HTTP_URI_CODING_QUERY);
|
|
}
|
|
}
|
|
|
|
if (!uri)
|
|
{
|
|
*resource = '\0';
|
|
return (HTTP_URI_STATUS_BAD_RESOURCE);
|
|
}
|
|
|
|
/*
|
|
* Return the URI separation status...
|
|
*/
|
|
|
|
return (status);
|
|
}
|
|
|
|
|
|
/*
|
|
* '_httpSetDigestAuthString()' - Calculate a Digest authentication response
|
|
* using the appropriate RFC 2068/2617/7616
|
|
* algorithm.
|
|
*/
|
|
|
|
int /* O - 1 on success, 0 on failure */
|
|
_httpSetDigestAuthString(
|
|
http_t *http, /* I - HTTP connection */
|
|
const char *nonce, /* I - Nonce value */
|
|
const char *method, /* I - HTTP method */
|
|
const char *resource) /* I - HTTP resource path */
|
|
{
|
|
char kd[65], /* Final MD5/SHA-256 digest */
|
|
ha1[65], /* Hash of username:realm:password */
|
|
ha2[65], /* Hash of method:request-uri */
|
|
username[HTTP_MAX_VALUE],
|
|
/* username:password */
|
|
*password, /* Pointer to password */
|
|
temp[1024], /* Temporary string */
|
|
digest[1024]; /* Digest auth data */
|
|
unsigned char hash[32]; /* Hash buffer */
|
|
size_t hashsize; /* Size of hash */
|
|
_cups_globals_t *cg = _cupsGlobals(); /* Per-thread globals */
|
|
|
|
|
|
DEBUG_printf(("2_httpSetDigestAuthString(http=%p, nonce=\"%s\", method=\"%s\", resource=\"%s\")", (void *)http, nonce, method, resource));
|
|
|
|
if (nonce && *nonce && strcmp(nonce, http->nonce))
|
|
{
|
|
strlcpy(http->nonce, nonce, sizeof(http->nonce));
|
|
|
|
if (nonce == http->nextnonce)
|
|
http->nextnonce[0] = '\0';
|
|
|
|
http->nonce_count = 1;
|
|
}
|
|
else
|
|
http->nonce_count ++;
|
|
|
|
strlcpy(username, http->userpass, sizeof(username));
|
|
if ((password = strchr(username, ':')) != NULL)
|
|
*password++ = '\0';
|
|
else
|
|
return (0);
|
|
|
|
if (http->algorithm[0])
|
|
{
|
|
/*
|
|
* Follow RFC 2617/7616...
|
|
*/
|
|
|
|
int i; /* Looping var */
|
|
char cnonce[65]; /* cnonce value */
|
|
const char *hashalg; /* Hashing algorithm */
|
|
|
|
for (i = 0; i < 64; i ++)
|
|
cnonce[i] = "0123456789ABCDEF"[CUPS_RAND() & 15];
|
|
cnonce[64] = '\0';
|
|
|
|
if (!_cups_strcasecmp(http->algorithm, "MD5"))
|
|
{
|
|
/*
|
|
* RFC 2617 Digest with MD5
|
|
*/
|
|
|
|
if (cg->digestoptions == _CUPS_DIGESTOPTIONS_DENYMD5)
|
|
{
|
|
DEBUG_puts("3_httpSetDigestAuthString: MD5 Digest is disabled.");
|
|
return (0);
|
|
}
|
|
|
|
hashalg = "md5";
|
|
}
|
|
else if (!_cups_strcasecmp(http->algorithm, "SHA-256"))
|
|
{
|
|
/*
|
|
* RFC 7616 Digest with SHA-256
|
|
*/
|
|
|
|
hashalg = "sha2-256";
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Some other algorithm we don't support, skip this one...
|
|
*/
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Calculate digest value...
|
|
*/
|
|
|
|
/* H(A1) = H(username:realm:password) */
|
|
snprintf(temp, sizeof(temp), "%s:%s:%s", username, http->realm, password);
|
|
hashsize = (size_t)cupsHashData(hashalg, (unsigned char *)temp, strlen(temp), hash, sizeof(hash));
|
|
cupsHashString(hash, hashsize, ha1, sizeof(ha1));
|
|
|
|
/* H(A2) = H(method:uri) */
|
|
snprintf(temp, sizeof(temp), "%s:%s", method, resource);
|
|
hashsize = (size_t)cupsHashData(hashalg, (unsigned char *)temp, strlen(temp), hash, sizeof(hash));
|
|
cupsHashString(hash, hashsize, ha2, sizeof(ha2));
|
|
|
|
/* KD = H(H(A1):nonce:nc:cnonce:qop:H(A2)) */
|
|
snprintf(temp, sizeof(temp), "%s:%s:%08x:%s:%s:%s", ha1, http->nonce, http->nonce_count, cnonce, "auth", ha2);
|
|
hashsize = (size_t)cupsHashData(hashalg, (unsigned char *)temp, strlen(temp), hash, sizeof(hash));
|
|
cupsHashString(hash, hashsize, kd, sizeof(kd));
|
|
|
|
/*
|
|
* Pass the RFC 2617/7616 WWW-Authenticate header...
|
|
*/
|
|
|
|
if (http->opaque[0])
|
|
snprintf(digest, sizeof(digest), "username=\"%s\", realm=\"%s\", nonce=\"%s\", algorithm=%s, qop=auth, opaque=\"%s\", cnonce=\"%s\", nc=%08x, uri=\"%s\", response=\"%s\"", cupsUser(), http->realm, http->nonce, http->algorithm, http->opaque, cnonce, http->nonce_count, resource, kd);
|
|
else
|
|
snprintf(digest, sizeof(digest), "username=\"%s\", realm=\"%s\", nonce=\"%s\", algorithm=%s, qop=auth, cnonce=\"%s\", nc=%08x, uri=\"%s\", response=\"%s\"", username, http->realm, http->nonce, http->algorithm, cnonce, http->nonce_count, resource, kd);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Use old RFC 2069 Digest method...
|
|
*/
|
|
|
|
/* H(A1) = H(username:realm:password) */
|
|
snprintf(temp, sizeof(temp), "%s:%s:%s", username, http->realm, password);
|
|
hashsize = (size_t)cupsHashData("md5", (unsigned char *)temp, strlen(temp), hash, sizeof(hash));
|
|
cupsHashString(hash, hashsize, ha1, sizeof(ha1));
|
|
|
|
/* H(A2) = H(method:uri) */
|
|
snprintf(temp, sizeof(temp), "%s:%s", method, resource);
|
|
hashsize = (size_t)cupsHashData("md5", (unsigned char *)temp, strlen(temp), hash, sizeof(hash));
|
|
cupsHashString(hash, hashsize, ha2, sizeof(ha2));
|
|
|
|
/* KD = H(H(A1):nonce:H(A2)) */
|
|
snprintf(temp, sizeof(temp), "%s:%s:%s", ha1, http->nonce, ha2);
|
|
hashsize = (size_t)cupsHashData("md5", (unsigned char *)temp, strlen(temp), hash, sizeof(hash));
|
|
cupsHashString(hash, hashsize, kd, sizeof(kd));
|
|
|
|
/*
|
|
* Pass the old RFC 2069 WWW-Authenticate header...
|
|
*/
|
|
|
|
snprintf(digest, sizeof(digest), "username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", response=\"%s\"", username, http->realm, http->nonce, resource, kd);
|
|
}
|
|
|
|
httpSetAuthString(http, "Digest", digest);
|
|
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpStateString()' - Return the string describing a HTTP state value.
|
|
*
|
|
* @since CUPS 2.0/OS 10.10@
|
|
*/
|
|
|
|
const char * /* O - State string */
|
|
httpStateString(http_state_t state) /* I - HTTP state value */
|
|
{
|
|
if (state < HTTP_STATE_ERROR || state > HTTP_STATE_UNKNOWN_VERSION)
|
|
return ("HTTP_STATE_???");
|
|
else
|
|
return (http_states[state - HTTP_STATE_ERROR]);
|
|
}
|
|
|
|
|
|
/*
|
|
* '_httpStatus()' - Return the localized string describing a HTTP status code.
|
|
*
|
|
* The returned string is localized using the passed message catalog.
|
|
*/
|
|
|
|
const char * /* O - Localized status string */
|
|
_httpStatus(cups_lang_t *lang, /* I - Language */
|
|
http_status_t status) /* I - HTTP status code */
|
|
{
|
|
const char *s; /* Status string */
|
|
|
|
|
|
switch (status)
|
|
{
|
|
case HTTP_STATUS_ERROR :
|
|
s = strerror(errno);
|
|
break;
|
|
case HTTP_STATUS_CONTINUE :
|
|
s = _("Continue");
|
|
break;
|
|
case HTTP_STATUS_SWITCHING_PROTOCOLS :
|
|
s = _("Switching Protocols");
|
|
break;
|
|
case HTTP_STATUS_OK :
|
|
s = _("OK");
|
|
break;
|
|
case HTTP_STATUS_CREATED :
|
|
s = _("Created");
|
|
break;
|
|
case HTTP_STATUS_ACCEPTED :
|
|
s = _("Accepted");
|
|
break;
|
|
case HTTP_STATUS_NO_CONTENT :
|
|
s = _("No Content");
|
|
break;
|
|
case HTTP_STATUS_MOVED_PERMANENTLY :
|
|
s = _("Moved Permanently");
|
|
break;
|
|
case HTTP_STATUS_FOUND :
|
|
s = _("Found");
|
|
break;
|
|
case HTTP_STATUS_SEE_OTHER :
|
|
s = _("See Other");
|
|
break;
|
|
case HTTP_STATUS_NOT_MODIFIED :
|
|
s = _("Not Modified");
|
|
break;
|
|
case HTTP_STATUS_BAD_REQUEST :
|
|
s = _("Bad Request");
|
|
break;
|
|
case HTTP_STATUS_UNAUTHORIZED :
|
|
case HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED :
|
|
s = _("Unauthorized");
|
|
break;
|
|
case HTTP_STATUS_FORBIDDEN :
|
|
s = _("Forbidden");
|
|
break;
|
|
case HTTP_STATUS_NOT_FOUND :
|
|
s = _("Not Found");
|
|
break;
|
|
case HTTP_STATUS_REQUEST_TOO_LARGE :
|
|
s = _("Request Entity Too Large");
|
|
break;
|
|
case HTTP_STATUS_URI_TOO_LONG :
|
|
s = _("URI Too Long");
|
|
break;
|
|
case HTTP_STATUS_UPGRADE_REQUIRED :
|
|
s = _("Upgrade Required");
|
|
break;
|
|
case HTTP_STATUS_NOT_IMPLEMENTED :
|
|
s = _("Not Implemented");
|
|
break;
|
|
case HTTP_STATUS_NOT_SUPPORTED :
|
|
s = _("Not Supported");
|
|
break;
|
|
case HTTP_STATUS_EXPECTATION_FAILED :
|
|
s = _("Expectation Failed");
|
|
break;
|
|
case HTTP_STATUS_SERVICE_UNAVAILABLE :
|
|
s = _("Service Unavailable");
|
|
break;
|
|
case HTTP_STATUS_SERVER_ERROR :
|
|
s = _("Internal Server Error");
|
|
break;
|
|
case HTTP_STATUS_CUPS_PKI_ERROR :
|
|
s = _("SSL/TLS Negotiation Error");
|
|
break;
|
|
case HTTP_STATUS_CUPS_WEBIF_DISABLED :
|
|
s = _("Web Interface is Disabled");
|
|
break;
|
|
|
|
default :
|
|
s = _("Unknown");
|
|
break;
|
|
}
|
|
|
|
return (_cupsLangString(lang, s));
|
|
}
|
|
|
|
|
|
/*
|
|
* 'httpStatus()' - Return a short string describing a HTTP status code.
|
|
*
|
|
* The returned string is localized to the current POSIX locale and is based
|
|
* on the status strings defined in RFC 7231.
|
|
*/
|
|
|
|
const char * /* O - Localized status string */
|
|
httpStatus(http_status_t status) /* I - HTTP status code */
|
|
{
|
|
_cups_globals_t *cg = _cupsGlobals(); /* Global data */
|
|
|
|
|
|
if (!cg->lang_default)
|
|
cg->lang_default = cupsLangDefault();
|
|
|
|
return (_httpStatus(cg->lang_default, status));
|
|
}
|
|
|
|
/*
|
|
* 'httpURIStatusString()' - Return a string describing a URI status code.
|
|
*
|
|
* @since CUPS 2.0/OS 10.10@
|
|
*/
|
|
|
|
const char * /* O - Localized status string */
|
|
httpURIStatusString(
|
|
http_uri_status_t status) /* I - URI status code */
|
|
{
|
|
const char *s; /* Status string */
|
|
_cups_globals_t *cg = _cupsGlobals(); /* Global data */
|
|
|
|
|
|
if (!cg->lang_default)
|
|
cg->lang_default = cupsLangDefault();
|
|
|
|
switch (status)
|
|
{
|
|
case HTTP_URI_STATUS_OVERFLOW :
|
|
s = _("URI too large");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_ARGUMENTS :
|
|
s = _("Bad arguments to function");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_RESOURCE :
|
|
s = _("Bad resource in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_PORT :
|
|
s = _("Bad port number in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_HOSTNAME :
|
|
s = _("Bad hostname/address in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_USERNAME :
|
|
s = _("Bad username in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_SCHEME :
|
|
s = _("Bad scheme in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_BAD_URI :
|
|
s = _("Bad/empty URI");
|
|
break;
|
|
case HTTP_URI_STATUS_OK :
|
|
s = _("OK");
|
|
break;
|
|
case HTTP_URI_STATUS_MISSING_SCHEME :
|
|
s = _("Missing scheme in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_UNKNOWN_SCHEME :
|
|
s = _("Unknown scheme in URI");
|
|
break;
|
|
case HTTP_URI_STATUS_MISSING_RESOURCE :
|
|
s = _("Missing resource in URI");
|
|
break;
|
|
|
|
default:
|
|
s = _("Unknown");
|
|
break;
|
|
}
|
|
|
|
return (_cupsLangString(cg->lang_default, s));
|
|
}
|
|
|
|
|
|
#ifndef HAVE_HSTRERROR
|
|
/*
|
|
* '_cups_hstrerror()' - hstrerror() emulation function for Solaris and others.
|
|
*/
|
|
|
|
const char * /* O - Error string */
|
|
_cups_hstrerror(int error) /* I - Error number */
|
|
{
|
|
static const char * const errors[] = /* Error strings */
|
|
{
|
|
"OK",
|
|
"Host not found.",
|
|
"Try again.",
|
|
"Unrecoverable lookup error.",
|
|
"No data associated with name."
|
|
};
|
|
|
|
|
|
if (error < 0 || error > 4)
|
|
return ("Unknown hostname lookup error.");
|
|
else
|
|
return (errors[error]);
|
|
}
|
|
#endif /* !HAVE_HSTRERROR */
|
|
|
|
|
|
/*
|
|
* '_httpDecodeURI()' - Percent-decode a HTTP request URI.
|
|
*/
|
|
|
|
char * /* O - Decoded URI or NULL on error */
|
|
_httpDecodeURI(char *dst, /* I - Destination buffer */
|
|
const char *src, /* I - Source URI */
|
|
size_t dstsize) /* I - Size of destination buffer */
|
|
{
|
|
if (http_copy_decode(dst, src, (int)dstsize, NULL, 1))
|
|
return (dst);
|
|
else
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
* '_httpEncodeURI()' - Percent-encode a HTTP request URI.
|
|
*/
|
|
|
|
char * /* O - Encoded URI */
|
|
_httpEncodeURI(char *dst, /* I - Destination buffer */
|
|
const char *src, /* I - Source URI */
|
|
size_t dstsize) /* I - Size of destination buffer */
|
|
{
|
|
http_copy_encode(dst, src, dst + dstsize - 1, NULL, NULL, 1);
|
|
return (dst);
|
|
}
|
|
|
|
|
|
/*
|
|
* '_httpResolveURI()' - Resolve a DNS-SD URI.
|
|
*/
|
|
|
|
const char * /* O - Resolved URI */
|
|
_httpResolveURI(
|
|
const char *uri, /* I - DNS-SD URI */
|
|
char *resolved_uri, /* I - Buffer for resolved URI */
|
|
size_t resolved_size, /* I - Size of URI buffer */
|
|
int options, /* I - Resolve options */
|
|
int (*cb)(void *context), /* I - Continue callback function */
|
|
void *context) /* I - Context pointer for callback */
|
|
{
|
|
char scheme[32], /* URI components... */
|
|
userpass[256],
|
|
hostname[1024],
|
|
resource[1024];
|
|
int port;
|
|
#ifdef DEBUG
|
|
http_uri_status_t status; /* URI decode status */
|
|
#endif /* DEBUG */
|
|
|
|
|
|
DEBUG_printf(("_httpResolveURI(uri=\"%s\", resolved_uri=%p, resolved_size=" CUPS_LLFMT ", options=0x%x, cb=%p, context=%p)", uri, (void *)resolved_uri, CUPS_LLCAST resolved_size, options, (void *)cb, context));
|
|
|
|
/*
|
|
* Get the device URI...
|
|
*/
|
|
|
|
#ifdef DEBUG
|
|
if ((status = httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme,
|
|
sizeof(scheme), userpass, sizeof(userpass),
|
|
hostname, sizeof(hostname), &port, resource,
|
|
sizeof(resource))) < HTTP_URI_STATUS_OK)
|
|
#else
|
|
if (httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme,
|
|
sizeof(scheme), userpass, sizeof(userpass),
|
|
hostname, sizeof(hostname), &port, resource,
|
|
sizeof(resource)) < HTTP_URI_STATUS_OK)
|
|
#endif /* DEBUG */
|
|
{
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
_cupsLangPrintFilter(stderr, "ERROR", _("Bad device-uri \"%s\"."), uri);
|
|
|
|
DEBUG_printf(("2_httpResolveURI: httpSeparateURI returned %d!", status));
|
|
DEBUG_puts("2_httpResolveURI: Returning NULL");
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Resolve it as needed...
|
|
*/
|
|
|
|
if (strstr(hostname, "._tcp"))
|
|
{
|
|
#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
|
|
char *regtype, /* Pointer to type in hostname */
|
|
*domain, /* Pointer to domain in hostname */
|
|
*uuid, /* Pointer to UUID in URI */
|
|
*uuidend; /* Pointer to end of UUID in URI */
|
|
_http_uribuf_t uribuf; /* URI buffer */
|
|
int offline = 0; /* offline-report state set? */
|
|
# ifdef HAVE_DNSSD
|
|
DNSServiceRef ref, /* DNS-SD master service reference */
|
|
domainref = NULL,/* DNS-SD service reference for domain */
|
|
ippref = NULL, /* DNS-SD service reference for network IPP */
|
|
ippsref = NULL, /* DNS-SD service reference for network IPPS */
|
|
localref; /* DNS-SD service reference for .local */
|
|
int extrasent = 0; /* Send the domain/IPP/IPPS resolves? */
|
|
# ifdef HAVE_POLL
|
|
struct pollfd polldata; /* Polling data */
|
|
# else /* select() */
|
|
fd_set input_set; /* Input set for select() */
|
|
struct timeval stimeout; /* Timeout value for select() */
|
|
# endif /* HAVE_POLL */
|
|
# elif defined(HAVE_AVAHI)
|
|
AvahiClient *client; /* Client information */
|
|
int error; /* Status */
|
|
# endif /* HAVE_DNSSD */
|
|
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
fprintf(stderr, "DEBUG: Resolving \"%s\"...\n", hostname);
|
|
|
|
/*
|
|
* Separate the hostname into service name, registration type, and domain...
|
|
*/
|
|
|
|
for (regtype = strstr(hostname, "._tcp") - 2;
|
|
regtype > hostname;
|
|
regtype --)
|
|
if (regtype[0] == '.' && regtype[1] == '_')
|
|
{
|
|
/*
|
|
* Found ._servicetype in front of ._tcp...
|
|
*/
|
|
|
|
*regtype++ = '\0';
|
|
break;
|
|
}
|
|
|
|
if (regtype <= hostname)
|
|
{
|
|
DEBUG_puts("2_httpResolveURI: Bad hostname, returning NULL");
|
|
return (NULL);
|
|
}
|
|
|
|
for (domain = strchr(regtype, '.');
|
|
domain;
|
|
domain = strchr(domain + 1, '.'))
|
|
if (domain[1] != '_')
|
|
break;
|
|
|
|
if (domain)
|
|
*domain++ = '\0';
|
|
|
|
if ((uuid = strstr(resource, "?uuid=")) != NULL)
|
|
{
|
|
*uuid = '\0';
|
|
uuid += 6;
|
|
if ((uuidend = strchr(uuid, '&')) != NULL)
|
|
*uuidend = '\0';
|
|
}
|
|
|
|
resolved_uri[0] = '\0';
|
|
|
|
uribuf.buffer = resolved_uri;
|
|
uribuf.bufsize = resolved_size;
|
|
uribuf.options = options;
|
|
uribuf.resource = resource;
|
|
uribuf.uuid = uuid;
|
|
|
|
DEBUG_printf(("2_httpResolveURI: Resolving hostname=\"%s\", regtype=\"%s\", "
|
|
"domain=\"%s\"\n", hostname, regtype, domain));
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
{
|
|
fputs("STATE: +connecting-to-device\n", stderr);
|
|
fprintf(stderr, "DEBUG: Resolving \"%s\", regtype=\"%s\", "
|
|
"domain=\"local.\"...\n", hostname, regtype);
|
|
}
|
|
|
|
uri = NULL;
|
|
|
|
# ifdef HAVE_DNSSD
|
|
if (DNSServiceCreateConnection(&ref) == kDNSServiceErr_NoError)
|
|
{
|
|
uint32_t myinterface = kDNSServiceInterfaceIndexAny;
|
|
/* Lookup on any interface */
|
|
|
|
if (!strcmp(scheme, "ippusb"))
|
|
myinterface = kDNSServiceInterfaceIndexLocalOnly;
|
|
|
|
localref = ref;
|
|
if (DNSServiceResolve(&localref,
|
|
kDNSServiceFlagsShareConnection, myinterface,
|
|
hostname, regtype, "local.", http_resolve_cb,
|
|
&uribuf) == kDNSServiceErr_NoError)
|
|
{
|
|
int fds; /* Number of ready descriptors */
|
|
time_t timeout, /* Poll timeout */
|
|
start_time = time(NULL),/* Start time */
|
|
end_time = start_time + 90;
|
|
/* End time */
|
|
|
|
while (time(NULL) < end_time)
|
|
{
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
_cupsLangPrintFilter(stderr, "INFO", _("Looking for printer."));
|
|
|
|
if (cb && !(*cb)(context))
|
|
{
|
|
DEBUG_puts("2_httpResolveURI: callback returned 0 (stop)");
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Wakeup every 2 seconds to emit a "looking for printer" message...
|
|
*/
|
|
|
|
if ((timeout = end_time - time(NULL)) > 2)
|
|
timeout = 2;
|
|
|
|
# ifdef HAVE_POLL
|
|
polldata.fd = DNSServiceRefSockFD(ref);
|
|
polldata.events = POLLIN;
|
|
|
|
fds = poll(&polldata, 1, (int)(1000 * timeout));
|
|
|
|
# else /* select() */
|
|
FD_ZERO(&input_set);
|
|
FD_SET(DNSServiceRefSockFD(ref), &input_set);
|
|
|
|
# ifdef _WIN32
|
|
stimeout.tv_sec = (long)timeout;
|
|
# else
|
|
stimeout.tv_sec = timeout;
|
|
# endif /* _WIN32 */
|
|
stimeout.tv_usec = 0;
|
|
|
|
fds = select(DNSServiceRefSockFD(ref)+1, &input_set, NULL, NULL,
|
|
&stimeout);
|
|
# endif /* HAVE_POLL */
|
|
|
|
if (fds < 0)
|
|
{
|
|
if (errno != EINTR && errno != EAGAIN)
|
|
{
|
|
DEBUG_printf(("2_httpResolveURI: poll error: %s", strerror(errno)));
|
|
break;
|
|
}
|
|
}
|
|
else if (fds == 0)
|
|
{
|
|
/*
|
|
* Wait 2 seconds for a response to the local resolve; if nothing
|
|
* comes in, do an additional domain resolution...
|
|
*/
|
|
|
|
if (extrasent == 0 && domain && _cups_strcasecmp(domain, "local."))
|
|
{
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
fprintf(stderr,
|
|
"DEBUG: Resolving \"%s\", regtype=\"%s\", "
|
|
"domain=\"%s\"...\n", hostname, regtype,
|
|
domain ? domain : "");
|
|
|
|
domainref = ref;
|
|
if (DNSServiceResolve(&domainref,
|
|
kDNSServiceFlagsShareConnection,
|
|
myinterface, hostname, regtype, domain,
|
|
http_resolve_cb,
|
|
&uribuf) == kDNSServiceErr_NoError)
|
|
extrasent = 1;
|
|
}
|
|
else if (extrasent == 0 && !strcmp(scheme, "ippusb"))
|
|
{
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
fprintf(stderr, "DEBUG: Resolving \"%s\", regtype=\"_ipps._tcp\", domain=\"local.\"...\n", hostname);
|
|
|
|
ippsref = ref;
|
|
if (DNSServiceResolve(&ippsref,
|
|
kDNSServiceFlagsShareConnection,
|
|
kDNSServiceInterfaceIndexAny, hostname,
|
|
"_ipps._tcp", domain, http_resolve_cb,
|
|
&uribuf) == kDNSServiceErr_NoError)
|
|
extrasent = 1;
|
|
}
|
|
else if (extrasent == 1 && !strcmp(scheme, "ippusb"))
|
|
{
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
fprintf(stderr, "DEBUG: Resolving \"%s\", regtype=\"_ipp._tcp\", domain=\"local.\"...\n", hostname);
|
|
|
|
ippref = ref;
|
|
if (DNSServiceResolve(&ippref,
|
|
kDNSServiceFlagsShareConnection,
|
|
kDNSServiceInterfaceIndexAny, hostname,
|
|
"_ipp._tcp", domain, http_resolve_cb,
|
|
&uribuf) == kDNSServiceErr_NoError)
|
|
extrasent = 2;
|
|
}
|
|
|
|
/*
|
|
* If it hasn't resolved within 5 seconds set the offline-report
|
|
* printer-state-reason...
|
|
*/
|
|
|
|
if ((options & _HTTP_RESOLVE_STDERR) && offline == 0 &&
|
|
time(NULL) > (start_time + 5))
|
|
{
|
|
fputs("STATE: +offline-report\n", stderr);
|
|
offline = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (DNSServiceProcessResult(ref) == kDNSServiceErr_NoError &&
|
|
resolved_uri[0])
|
|
{
|
|
uri = resolved_uri;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (extrasent)
|
|
{
|
|
if (domainref)
|
|
DNSServiceRefDeallocate(domainref);
|
|
if (ippref)
|
|
DNSServiceRefDeallocate(ippref);
|
|
if (ippsref)
|
|
DNSServiceRefDeallocate(ippsref);
|
|
}
|
|
|
|
DNSServiceRefDeallocate(localref);
|
|
}
|
|
|
|
DNSServiceRefDeallocate(ref);
|
|
}
|
|
# else /* HAVE_AVAHI */
|
|
if ((uribuf.poll = avahi_simple_poll_new()) != NULL)
|
|
{
|
|
avahi_simple_poll_set_func(uribuf.poll, http_poll_cb, NULL);
|
|
|
|
if ((client = avahi_client_new(avahi_simple_poll_get(uribuf.poll),
|
|
0, http_client_cb,
|
|
&uribuf, &error)) != NULL)
|
|
{
|
|
if (avahi_service_resolver_new(client, AVAHI_IF_UNSPEC,
|
|
AVAHI_PROTO_UNSPEC, hostname,
|
|
regtype, "local.", AVAHI_PROTO_UNSPEC, 0,
|
|
http_resolve_cb, &uribuf) != NULL)
|
|
{
|
|
time_t start_time = time(NULL),
|
|
/* Start time */
|
|
end_time = start_time + 90;
|
|
/* End time */
|
|
int pstatus; /* Poll status */
|
|
|
|
pstatus = avahi_simple_poll_iterate(uribuf.poll, 2000);
|
|
|
|
if (pstatus == 0 && !resolved_uri[0] && domain &&
|
|
_cups_strcasecmp(domain, "local."))
|
|
{
|
|
/*
|
|
* Resolve for .local hasn't returned anything, try the listed
|
|
* domain...
|
|
*/
|
|
|
|
avahi_service_resolver_new(client, AVAHI_IF_UNSPEC,
|
|
AVAHI_PROTO_UNSPEC, hostname,
|
|
regtype, domain, AVAHI_PROTO_UNSPEC, 0,
|
|
http_resolve_cb, &uribuf);
|
|
}
|
|
|
|
while (!pstatus && !resolved_uri[0] && time(NULL) < end_time)
|
|
{
|
|
if ((pstatus = avahi_simple_poll_iterate(uribuf.poll, 2000)) != 0)
|
|
break;
|
|
|
|
/*
|
|
* If it hasn't resolved within 5 seconds set the offline-report
|
|
* printer-state-reason...
|
|
*/
|
|
|
|
if ((options & _HTTP_RESOLVE_STDERR) && offline == 0 &&
|
|
time(NULL) > (start_time + 5))
|
|
{
|
|
fputs("STATE: +offline-report\n", stderr);
|
|
offline = 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Collect the result (if we got one).
|
|
*/
|
|
|
|
if (resolved_uri[0])
|
|
uri = resolved_uri;
|
|
}
|
|
|
|
avahi_client_free(client);
|
|
}
|
|
|
|
avahi_simple_poll_free(uribuf.poll);
|
|
}
|
|
# endif /* HAVE_DNSSD */
|
|
|
|
if (options & _HTTP_RESOLVE_STDERR)
|
|
{
|
|
if (uri)
|
|
{
|
|
fprintf(stderr, "DEBUG: Resolved as \"%s\"...\n", uri);
|
|
fputs("STATE: -connecting-to-device,offline-report\n", stderr);
|
|
}
|
|
else
|
|
{
|
|
fputs("DEBUG: Unable to resolve URI\n", stderr);
|
|
fputs("STATE: -connecting-to-device\n", stderr);
|
|
}
|
|
}
|
|
|
|
#else /* HAVE_DNSSD || HAVE_AVAHI */
|
|
/*
|
|
* No DNS-SD support...
|
|
*/
|
|
|
|
uri = NULL;
|
|
#endif /* HAVE_DNSSD || HAVE_AVAHI */
|
|
|
|
if ((options & _HTTP_RESOLVE_STDERR) && !uri)
|
|
_cupsLangPrintFilter(stderr, "INFO", _("Unable to find printer."));
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Nothing more to do...
|
|
*/
|
|
|
|
strlcpy(resolved_uri, uri, resolved_size);
|
|
uri = resolved_uri;
|
|
}
|
|
|
|
DEBUG_printf(("2_httpResolveURI: Returning \"%s\"", uri));
|
|
|
|
return (uri);
|
|
}
|
|
|
|
|
|
#ifdef HAVE_AVAHI
|
|
/*
|
|
* 'http_client_cb()' - Client callback for resolving URI.
|
|
*/
|
|
|
|
static void
|
|
http_client_cb(
|
|
AvahiClient *client, /* I - Client information */
|
|
AvahiClientState state, /* I - Current state */
|
|
void *context) /* I - Pointer to URI buffer */
|
|
{
|
|
DEBUG_printf(("7http_client_cb(client=%p, state=%d, context=%p)", client,
|
|
state, context));
|
|
|
|
/*
|
|
* If the connection drops, quit.
|
|
*/
|
|
|
|
if (state == AVAHI_CLIENT_FAILURE)
|
|
{
|
|
_http_uribuf_t *uribuf = (_http_uribuf_t *)context;
|
|
/* URI buffer */
|
|
|
|
avahi_simple_poll_quit(uribuf->poll);
|
|
}
|
|
}
|
|
#endif /* HAVE_AVAHI */
|
|
|
|
|
|
/*
|
|
* 'http_copy_decode()' - Copy and decode a URI.
|
|
*/
|
|
|
|
static const char * /* O - New source pointer or NULL on error */
|
|
http_copy_decode(char *dst, /* O - Destination buffer */
|
|
const char *src, /* I - Source pointer */
|
|
int dstsize, /* I - Destination size */
|
|
const char *term, /* I - Terminating characters */
|
|
int decode) /* I - Decode %-encoded values */
|
|
{
|
|
char *ptr, /* Pointer into buffer */
|
|
*end; /* End of buffer */
|
|
int quoted; /* Quoted character */
|
|
|
|
|
|
/*
|
|
* Copy the src to the destination until we hit a terminating character
|
|
* or the end of the string.
|
|
*/
|
|
|
|
for (ptr = dst, end = dst + dstsize - 1;
|
|
*src && (!term || !strchr(term, *src));
|
|
src ++)
|
|
if (ptr < end)
|
|
{
|
|
if (*src == '%' && decode)
|
|
{
|
|
if (isxdigit(src[1] & 255) && isxdigit(src[2] & 255))
|
|
{
|
|
/*
|
|
* Grab a hex-encoded character...
|
|
*/
|
|
|
|
src ++;
|
|
if (isalpha(*src))
|
|
quoted = (tolower(*src) - 'a' + 10) << 4;
|
|
else
|
|
quoted = (*src - '0') << 4;
|
|
|
|
src ++;
|
|
if (isalpha(*src))
|
|
quoted |= tolower(*src) - 'a' + 10;
|
|
else
|
|
quoted |= *src - '0';
|
|
|
|
*ptr++ = (char)quoted;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Bad hex-encoded character...
|
|
*/
|
|
|
|
*ptr = '\0';
|
|
return (NULL);
|
|
}
|
|
}
|
|
else if ((*src & 255) <= 0x20 || (*src & 255) >= 0x7f)
|
|
{
|
|
*ptr = '\0';
|
|
return (NULL);
|
|
}
|
|
else
|
|
*ptr++ = *src;
|
|
}
|
|
|
|
*ptr = '\0';
|
|
|
|
return (src);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'http_copy_encode()' - Copy and encode a URI.
|
|
*/
|
|
|
|
static char * /* O - End of current URI */
|
|
http_copy_encode(char *dst, /* O - Destination buffer */
|
|
const char *src, /* I - Source pointer */
|
|
char *dstend, /* I - End of destination buffer */
|
|
const char *reserved, /* I - Extra reserved characters */
|
|
const char *term, /* I - Terminating characters */
|
|
int encode) /* I - %-encode reserved chars? */
|
|
{
|
|
static const char hex[] = "0123456789ABCDEF";
|
|
|
|
|
|
while (*src && dst < dstend)
|
|
{
|
|
if (term && *src == *term)
|
|
return (dst);
|
|
|
|
if (encode && (*src == '%' || *src <= ' ' || *src & 128 ||
|
|
(reserved && strchr(reserved, *src))))
|
|
{
|
|
/*
|
|
* Hex encode reserved characters...
|
|
*/
|
|
|
|
if ((dst + 2) >= dstend)
|
|
break;
|
|
|
|
*dst++ = '%';
|
|
*dst++ = hex[(*src >> 4) & 15];
|
|
*dst++ = hex[*src & 15];
|
|
|
|
src ++;
|
|
}
|
|
else
|
|
*dst++ = *src++;
|
|
}
|
|
|
|
*dst = '\0';
|
|
|
|
if (*src)
|
|
return (NULL);
|
|
else
|
|
return (dst);
|
|
}
|
|
|
|
|
|
#ifdef HAVE_DNSSD
|
|
/*
|
|
* 'http_resolve_cb()' - Build a device URI for the given service name.
|
|
*/
|
|
|
|
static void DNSSD_API
|
|
http_resolve_cb(
|
|
DNSServiceRef sdRef, /* I - Service reference */
|
|
DNSServiceFlags flags, /* I - Results flags */
|
|
uint32_t interfaceIndex, /* I - Interface number */
|
|
DNSServiceErrorType errorCode, /* I - Error, if any */
|
|
const char *fullName, /* I - Full service name */
|
|
const char *hostTarget, /* I - Hostname */
|
|
uint16_t port, /* I - Port number */
|
|
uint16_t txtLen, /* I - Length of TXT record */
|
|
const unsigned char *txtRecord, /* I - TXT record data */
|
|
void *context) /* I - Pointer to URI buffer */
|
|
{
|
|
_http_uribuf_t *uribuf = (_http_uribuf_t *)context;
|
|
/* URI buffer */
|
|
const char *scheme, /* URI scheme */
|
|
*hostptr, /* Pointer into hostTarget */
|
|
*reskey, /* "rp" or "rfo" */
|
|
*resdefault; /* Default path */
|
|
char resource[257], /* Remote path */
|
|
fqdn[256]; /* FQDN of the .local name */
|
|
const void *value; /* Value from TXT record */
|
|
uint8_t valueLen; /* Length of value */
|
|
|
|
|
|
DEBUG_printf(("4http_resolve_cb(sdRef=%p, flags=%x, interfaceIndex=%u, errorCode=%d, fullName=\"%s\", hostTarget=\"%s\", port=%u, txtLen=%u, txtRecord=%p, context=%p)", (void *)sdRef, flags, interfaceIndex, errorCode, fullName, hostTarget, port, txtLen, (void *)txtRecord, context));
|
|
|
|
/*
|
|
* If we have a UUID, compare it...
|
|
*/
|
|
|
|
if (uribuf->uuid &&
|
|
(value = TXTRecordGetValuePtr(txtLen, txtRecord, "UUID",
|
|
&valueLen)) != NULL)
|
|
{
|
|
char uuid[256]; /* UUID value */
|
|
|
|
memcpy(uuid, value, valueLen);
|
|
uuid[valueLen] = '\0';
|
|
|
|
if (_cups_strcasecmp(uuid, uribuf->uuid))
|
|
{
|
|
if (uribuf->options & _HTTP_RESOLVE_STDERR)
|
|
fprintf(stderr, "DEBUG: Found UUID %s, looking for %s.", uuid,
|
|
uribuf->uuid);
|
|
|
|
DEBUG_printf(("5http_resolve_cb: Found UUID %s, looking for %s.", uuid,
|
|
uribuf->uuid));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Figure out the scheme from the full name...
|
|
*/
|
|
|
|
if (strstr(fullName, "._ipps") || strstr(fullName, "._ipp-tls"))
|
|
scheme = "ipps";
|
|
else if (strstr(fullName, "._ipp") || strstr(fullName, "._fax-ipp"))
|
|
scheme = "ipp";
|
|
else if (strstr(fullName, "._http."))
|
|
scheme = "http";
|
|
else if (strstr(fullName, "._https."))
|
|
scheme = "https";
|
|
else if (strstr(fullName, "._printer."))
|
|
scheme = "lpd";
|
|
else if (strstr(fullName, "._pdl-datastream."))
|
|
scheme = "socket";
|
|
else
|
|
scheme = "riousbprint";
|
|
|
|
/*
|
|
* Extract the "remote printer" key from the TXT record...
|
|
*/
|
|
|
|
if ((uribuf->options & _HTTP_RESOLVE_FAXOUT) &&
|
|
(!strcmp(scheme, "ipp") || !strcmp(scheme, "ipps")) &&
|
|
!TXTRecordGetValuePtr(txtLen, txtRecord, "printer-type", &valueLen))
|
|
{
|
|
reskey = "rfo";
|
|
resdefault = "/ipp/faxout";
|
|
}
|
|
else
|
|
{
|
|
reskey = "rp";
|
|
resdefault = "/";
|
|
}
|
|
|
|
if ((value = TXTRecordGetValuePtr(txtLen, txtRecord, reskey,
|
|
&valueLen)) != NULL)
|
|
{
|
|
if (((char *)value)[0] == '/')
|
|
{
|
|
/*
|
|
* Value (incorrectly) has a leading slash already...
|
|
*/
|
|
|
|
memcpy(resource, value, valueLen);
|
|
resource[valueLen] = '\0';
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Convert to resource by concatenating with a leading "/"...
|
|
*/
|
|
|
|
resource[0] = '/';
|
|
memcpy(resource + 1, value, valueLen);
|
|
resource[valueLen + 1] = '\0';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Use the default value...
|
|
*/
|
|
|
|
strlcpy(resource, resdefault, sizeof(resource));
|
|
}
|
|
|
|
/*
|
|
* Lookup the FQDN if needed...
|
|
*/
|
|
|
|
if ((uribuf->options & _HTTP_RESOLVE_FQDN) &&
|
|
(hostptr = hostTarget + strlen(hostTarget) - 7) > hostTarget &&
|
|
!_cups_strcasecmp(hostptr, ".local."))
|
|
{
|
|
/*
|
|
* OK, we got a .local name but the caller needs a real domain. Start by
|
|
* getting the IP address of the .local name and then do reverse-lookups...
|
|
*/
|
|
|
|
http_addrlist_t *addrlist, /* List of addresses */
|
|
*addr; /* Current address */
|
|
|
|
DEBUG_printf(("5http_resolve_cb: Looking up \"%s\".", hostTarget));
|
|
|
|
snprintf(fqdn, sizeof(fqdn), "%d", ntohs(port));
|
|
if ((addrlist = httpAddrGetList(hostTarget, AF_UNSPEC, fqdn)) != NULL)
|
|
{
|
|
for (addr = addrlist; addr; addr = addr->next)
|
|
{
|
|
int error = getnameinfo(&(addr->addr.addr), (socklen_t)httpAddrLength(&(addr->addr)), fqdn, sizeof(fqdn), NULL, 0, NI_NAMEREQD);
|
|
|
|
if (!error)
|
|
{
|
|
DEBUG_printf(("5http_resolve_cb: Found \"%s\".", fqdn));
|
|
|
|
if ((hostptr = fqdn + strlen(fqdn) - 6) <= fqdn ||
|
|
_cups_strcasecmp(hostptr, ".local"))
|
|
{
|
|
hostTarget = fqdn;
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
else
|
|
DEBUG_printf(("5http_resolve_cb: \"%s\" did not resolve: %d",
|
|
httpAddrString(&(addr->addr), fqdn, sizeof(fqdn)),
|
|
error));
|
|
#endif /* DEBUG */
|
|
}
|
|
|
|
httpAddrFreeList(addrlist);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Assemble the final device URI...
|
|
*/
|
|
|
|
if ((!strcmp(scheme, "ipp") || !strcmp(scheme, "ipps")) &&
|
|
!strcmp(uribuf->resource, "/cups"))
|
|
httpAssembleURIf(HTTP_URI_CODING_ALL, uribuf->buffer, (int)uribuf->bufsize, scheme, NULL, hostTarget, ntohs(port), "%s?snmp=false", resource);
|
|
else
|
|
httpAssembleURI(HTTP_URI_CODING_ALL, uribuf->buffer, (int)uribuf->bufsize, scheme, NULL, hostTarget, ntohs(port), resource);
|
|
|
|
DEBUG_printf(("5http_resolve_cb: Resolved URI is \"%s\"...", uribuf->buffer));
|
|
}
|
|
|
|
#elif defined(HAVE_AVAHI)
|
|
/*
|
|
* 'http_poll_cb()' - Wait for input on the specified file descriptors.
|
|
*
|
|
* Note: This function is needed because avahi_simple_poll_iterate is broken
|
|
* and always uses a timeout of 0 (!) milliseconds.
|
|
* (Avahi Ticket #364)
|
|
*
|
|
* @private@
|
|
*/
|
|
|
|
static int /* O - Number of file descriptors matching */
|
|
http_poll_cb(
|
|
struct pollfd *pollfds, /* I - File descriptors */
|
|
unsigned int num_pollfds, /* I - Number of file descriptors */
|
|
int timeout, /* I - Timeout in milliseconds (used) */
|
|
void *context) /* I - User data (unused) */
|
|
{
|
|
(void)timeout;
|
|
(void)context;
|
|
|
|
return (poll(pollfds, num_pollfds, 2000));
|
|
}
|
|
|
|
|
|
/*
|
|
* 'http_resolve_cb()' - Build a device URI for the given service name.
|
|
*/
|
|
|
|
static void
|
|
http_resolve_cb(
|
|
AvahiServiceResolver *resolver, /* I - Resolver (unused) */
|
|
AvahiIfIndex interface, /* I - Interface index (unused) */
|
|
AvahiProtocol protocol, /* I - Network protocol (unused) */
|
|
AvahiResolverEvent event, /* I - Event (found, etc.) */
|
|
const char *name, /* I - Service name */
|
|
const char *type, /* I - Registration type */
|
|
const char *domain, /* I - Domain (unused) */
|
|
const char *hostTarget, /* I - Hostname */
|
|
const AvahiAddress *address, /* I - Address (unused) */
|
|
uint16_t port, /* I - Port number */
|
|
AvahiStringList *txt, /* I - TXT record */
|
|
AvahiLookupResultFlags flags, /* I - Lookup flags (unused) */
|
|
void *context) /* I - Pointer to URI buffer */
|
|
{
|
|
_http_uribuf_t *uribuf = (_http_uribuf_t *)context;
|
|
/* URI buffer */
|
|
const char *scheme, /* URI scheme */
|
|
*hostptr, /* Pointer into hostTarget */
|
|
*reskey, /* "rp" or "rfo" */
|
|
*resdefault; /* Default path */
|
|
char resource[257], /* Remote path */
|
|
fqdn[256]; /* FQDN of the .local name */
|
|
AvahiStringList *pair; /* Current TXT record key/value pair */
|
|
char *value; /* Value for "rp" key */
|
|
size_t valueLen = 0; /* Length of "rp" key */
|
|
|
|
|
|
DEBUG_printf(("4http_resolve_cb(resolver=%p, "
|
|
"interface=%d, protocol=%d, event=%d, name=\"%s\", "
|
|
"type=\"%s\", domain=\"%s\", hostTarget=\"%s\", address=%p, "
|
|
"port=%d, txt=%p, flags=%d, context=%p)",
|
|
resolver, interface, protocol, event, name, type, domain,
|
|
hostTarget, address, port, txt, flags, context));
|
|
|
|
if (event != AVAHI_RESOLVER_FOUND)
|
|
{
|
|
avahi_service_resolver_free(resolver);
|
|
avahi_simple_poll_quit(uribuf->poll);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If we have a UUID, compare it...
|
|
*/
|
|
|
|
if (uribuf->uuid && (pair = avahi_string_list_find(txt, "UUID")) != NULL)
|
|
{
|
|
char uuid[256]; /* UUID value */
|
|
|
|
avahi_string_list_get_pair(pair, NULL, &value, &valueLen);
|
|
|
|
memcpy(uuid, value, valueLen);
|
|
uuid[valueLen] = '\0';
|
|
|
|
if (_cups_strcasecmp(uuid, uribuf->uuid))
|
|
{
|
|
if (uribuf->options & _HTTP_RESOLVE_STDERR)
|
|
fprintf(stderr, "DEBUG: Found UUID %s, looking for %s.", uuid,
|
|
uribuf->uuid);
|
|
|
|
DEBUG_printf(("5http_resolve_cb: Found UUID %s, looking for %s.", uuid,
|
|
uribuf->uuid));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Figure out the scheme from the full name...
|
|
*/
|
|
|
|
if (strstr(type, "_ipp."))
|
|
scheme = "ipp";
|
|
else if (strstr(type, "_printer."))
|
|
scheme = "lpd";
|
|
else if (strstr(type, "_pdl-datastream."))
|
|
scheme = "socket";
|
|
else
|
|
scheme = "riousbprint";
|
|
|
|
if (!strncmp(type, "_ipps.", 6) || !strncmp(type, "_ipp-tls.", 9))
|
|
scheme = "ipps";
|
|
else if (!strncmp(type, "_ipp.", 5) || !strncmp(type, "_fax-ipp.", 9))
|
|
scheme = "ipp";
|
|
else if (!strncmp(type, "_http.", 6))
|
|
scheme = "http";
|
|
else if (!strncmp(type, "_https.", 7))
|
|
scheme = "https";
|
|
else if (!strncmp(type, "_printer.", 9))
|
|
scheme = "lpd";
|
|
else if (!strncmp(type, "_pdl-datastream.", 16))
|
|
scheme = "socket";
|
|
else
|
|
{
|
|
avahi_service_resolver_free(resolver);
|
|
avahi_simple_poll_quit(uribuf->poll);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Extract the remote resource key from the TXT record...
|
|
*/
|
|
|
|
if ((uribuf->options & _HTTP_RESOLVE_FAXOUT) &&
|
|
(!strcmp(scheme, "ipp") || !strcmp(scheme, "ipps")) &&
|
|
!avahi_string_list_find(txt, "printer-type"))
|
|
{
|
|
reskey = "rfo";
|
|
resdefault = "/ipp/faxout";
|
|
}
|
|
else
|
|
{
|
|
reskey = "rp";
|
|
resdefault = "/";
|
|
}
|
|
|
|
if ((pair = avahi_string_list_find(txt, reskey)) != NULL)
|
|
{
|
|
avahi_string_list_get_pair(pair, NULL, &value, &valueLen);
|
|
|
|
if (value[0] == '/')
|
|
{
|
|
/*
|
|
* Value (incorrectly) has a leading slash already...
|
|
*/
|
|
|
|
memcpy(resource, value, valueLen);
|
|
resource[valueLen] = '\0';
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Convert to resource by concatenating with a leading "/"...
|
|
*/
|
|
|
|
resource[0] = '/';
|
|
memcpy(resource + 1, value, valueLen);
|
|
resource[valueLen + 1] = '\0';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Use the default value...
|
|
*/
|
|
|
|
strlcpy(resource, resdefault, sizeof(resource));
|
|
}
|
|
|
|
/*
|
|
* Lookup the FQDN if needed...
|
|
*/
|
|
|
|
if ((uribuf->options & _HTTP_RESOLVE_FQDN) &&
|
|
(hostptr = hostTarget + strlen(hostTarget) - 6) > hostTarget &&
|
|
!_cups_strcasecmp(hostptr, ".local"))
|
|
{
|
|
/*
|
|
* OK, we got a .local name but the caller needs a real domain. Start by
|
|
* getting the IP address of the .local name and then do reverse-lookups...
|
|
*/
|
|
|
|
http_addrlist_t *addrlist, /* List of addresses */
|
|
*addr; /* Current address */
|
|
|
|
DEBUG_printf(("5http_resolve_cb: Looking up \"%s\".", hostTarget));
|
|
|
|
snprintf(fqdn, sizeof(fqdn), "%d", ntohs(port));
|
|
if ((addrlist = httpAddrGetList(hostTarget, AF_UNSPEC, fqdn)) != NULL)
|
|
{
|
|
for (addr = addrlist; addr; addr = addr->next)
|
|
{
|
|
int error = getnameinfo(&(addr->addr.addr), (socklen_t)httpAddrLength(&(addr->addr)), fqdn, sizeof(fqdn), NULL, 0, NI_NAMEREQD);
|
|
|
|
if (!error)
|
|
{
|
|
DEBUG_printf(("5http_resolve_cb: Found \"%s\".", fqdn));
|
|
|
|
if ((hostptr = fqdn + strlen(fqdn) - 6) <= fqdn ||
|
|
_cups_strcasecmp(hostptr, ".local"))
|
|
{
|
|
hostTarget = fqdn;
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
else
|
|
DEBUG_printf(("5http_resolve_cb: \"%s\" did not resolve: %d",
|
|
httpAddrString(&(addr->addr), fqdn, sizeof(fqdn)),
|
|
error));
|
|
#endif /* DEBUG */
|
|
}
|
|
|
|
httpAddrFreeList(addrlist);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Assemble the final device URI using the resolved hostname...
|
|
*/
|
|
|
|
httpAssembleURI(HTTP_URI_CODING_ALL, uribuf->buffer, (int)uribuf->bufsize, scheme,
|
|
NULL, hostTarget, port, resource);
|
|
DEBUG_printf(("5http_resolve_cb: Resolved URI is \"%s\".", uribuf->buffer));
|
|
|
|
avahi_simple_poll_quit(uribuf->poll);
|
|
}
|
|
#endif /* HAVE_DNSSD */
|