http.subr revision 252112
1252112Sdteskeif [ ! "$_MEDIA_HTTP_SUBR" ]; then _MEDIA_HTTP_SUBR=1 2252112Sdteske# 3252112Sdteske# Copyright (c) 2012-2013 Devin Teske 4252112Sdteske# All Rights Reserved. 5252112Sdteske# 6252112Sdteske# Redistribution and use in source and binary forms, with or without 7252112Sdteske# modification, are permitted provided that the following conditions 8252112Sdteske# are met: 9252112Sdteske# 1. Redistributions of source code must retain the above copyright 10252112Sdteske# notice, this list of conditions and the following disclaimer. 11252112Sdteske# 2. Redistributions in binary form must reproduce the above copyright 12252112Sdteske# notice, this list of conditions and the following disclaimer in the 13252112Sdteske# documentation and/or other materials provided with the distribution. 14252112Sdteske# 15252112Sdteske# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16252112Sdteske# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE 17252112Sdteske# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18252112Sdteske# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19252112Sdteske# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20252112Sdteske# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21252112Sdteske# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22252112Sdteske# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23252112Sdteske# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24252112Sdteske# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25252112Sdteske# SUCH DAMAGE. 26252112Sdteske# 27252112Sdteske# $FreeBSD: head/usr.sbin/bsdconfig/share/media/http.subr 252112 2013-06-23 10:48:26Z dteske $ 28252112Sdteske# 29252112Sdteske############################################################ INCLUDES 30252112Sdteske 31252112SdteskeBSDCFG_SHARE="/usr/share/bsdconfig" 32252112Sdteske. $BSDCFG_SHARE/common.subr || exit 1 33252112Sdteskef_dprintf "%s: loading includes..." media/http.subr 34252112Sdteskef_include $BSDCFG_SHARE/device.subr 35252112Sdteskef_include $BSDCFG_SHARE/dialog.subr 36252112Sdteskef_include $BSDCFG_SHARE/media/common.subr 37252112Sdteskef_include $BSDCFG_SHARE/media/tcpip.subr 38252112Sdteskef_include $BSDCFG_SHARE/strings.subr 39252112Sdteskef_include $BSDCFG_SHARE/struct.subr 40252112Sdteskef_include $BSDCFG_SHARE/variable.subr 41252112Sdteske 42252112SdteskeBSDCFG_LIBE="/usr/libexec/bsdconfig" 43252112Sdteskef_include_lang $BSDCFG_LIBE/include/messages.subr 44252112Sdteske 45252112Sdteske############################################################ GLOBALS 46252112Sdteske 47252112SdteskeHTTP_SKIP_RESOLV= 48252112Sdteske 49252112SdteskeURL_MAX=261261 50252112Sdteske # NOTE: This is according to actual fetch(1) test-results. We actually 51252112Sdteske # use nc(1) to retrieve files, but it's still a good idea to keep the 52252112Sdteske # URLs short enough that fetch(1) won't complain. 53252112Sdteske 54252112SdteskeHTTP_DIRS=" 55252112Sdteske . 56252112Sdteske releases/$UNAME_P 57252112Sdteske snapshots/$UNAME_P 58252112Sdteske pub/FreeBSD 59252112Sdteske pub/FreeBSD/releases/$UNAME_P 60252112Sdteske pub/FreeBSD/snapshots/$UNAME_P 61252112Sdteske pub/FreeBSD-Archive/old-releases/$UNAME_P 62252112Sdteske" # END-QUOTE 63252112Sdteske 64252112Sdteske############################################################ FUNCTIONS 65252112Sdteske 66252112Sdteske# f_dialog_menu_media_http 67252112Sdteske# 68252112Sdteske# Prompt the user to select from a range of ``built-in'' HTTP servers or 69252112Sdteske# specify their own. If the user makes a choice and doesn't cancel or press 70252112Sdteske# Esc, stores the user's choice in VAR_FTP_PATH (see variable.subr) and returns 71252112Sdteske# success. 72252112Sdteske# 73252112Sdteskef_dialog_menu_media_http() 74252112Sdteske{ 75252112Sdteske f_dialog_title "$msg_please_select_a_freebsd_http_distribution_site" 76252112Sdteske local title="$DIALOG_TITLE" btitle="$DIALOG_BACKTITLE" 77252112Sdteske f_dialog_title_restore 78252112Sdteske local prompt="$msg_please_select_the_site_closest_to_you_or_other" 79252112Sdteske local menu_list=" 80252112Sdteske 'URL' '$msg_specify_some_other_http_site' 81252112Sdteske " # END-QUOTE 82252112Sdteske local hline="$msg_select_a_site_thats_close" 83252112Sdteske 84252112Sdteske local height width rows 85252112Sdteske eval f_dialog_menu_size height width rows \ 86252112Sdteske \"\$title\" \ 87252112Sdteske \"\$btitle\" \ 88252112Sdteske \"\$prompt\" \ 89252112Sdteske \"\$hline\" \ 90252112Sdteske $menu_list 91252112Sdteske 92252112Sdteske local mtag 93252112Sdteske mtag=$( eval $DIALOG \ 94252112Sdteske --title \"\$title\" \ 95252112Sdteske --backtitle \"\$btitle\" \ 96252112Sdteske --hline \"\$hline\" \ 97252112Sdteske --ok-label \"\$msg_ok\" \ 98252112Sdteske --cancel-label \"\$msg_cancel\" \ 99252112Sdteske --menu \"\$prompt\" \ 100252112Sdteske $height $width $rows \ 101252112Sdteske $menu_list \ 102252112Sdteske 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD 103252112Sdteske ) || return $FAILURE 104252112Sdteske f_dialog_data_sanitize mtag 105252112Sdteske 106252112Sdteske case "$mtag" in 107252112Sdteske URL) setvar $VAR_HTTP_PATH "other" ;; 108252112Sdteske *) 109252112Sdteske local value 110252112Sdteske value=$( eval f_dialog_menutag2item \"\$mtag\" $menu_list ) 111252112Sdteske setvar $VAR_HTTP_PATH "http://$value" 112252112Sdteske esac 113252112Sdteske 114252112Sdteske return $SUCCESS 115252112Sdteske} 116252112Sdteske 117252112Sdteske# f_media_set_http 118252112Sdteske# 119252112Sdteske# Return success if we both found and set the media type to be an HTTP server. 120252112Sdteske# 121252112Sdteske# Variables from variable.subr that can be used to script user input: 122252112Sdteske# 123252112Sdteske# VAR_HTTP_PATH 124252112Sdteske# URL containing host and optionally a target path to the release 125252112Sdteske# repository on the HTTP server. Valid examples include: 126252112Sdteske# http://myhost 127252112Sdteske# http://somename:80/pub/ 128252112Sdteske# http://192.168.2.3/pub/ 129252112Sdteske# http://[::1]:8000/ 130252112Sdteske# The default port if not specified is 80. 131252112Sdteske# VAR_NAMESERVER [Optional] 132252112Sdteske# If set, overrides resolv.conf(5) and sets the nameserver that 133252112Sdteske# is used to convert names into addresses (when a name converts 134252112Sdteske# into multiple addresses, the first address to successfully 135252112Sdteske# connect is used). 136252112Sdteske# 137252112Sdteske# Meanwhile, the following variables from variable.subr are set after 138252112Sdteske# successful execution: 139252112Sdteske# 140252112Sdteske# VAR_HTTP_HOST 141252112Sdteske# The HTTP host to connect to, parsed from VAR_HTTP_PATH. In the 142252112Sdteske# example case of IPv6 where VAR_HTTP_PATH is "http://[::1]" this 143252112Sdteske# variable will be set to "::1" (the outer brackets are removed). 144252112Sdteske# VAR_HTTP_PORT 145252112Sdteske# The TCP port to connect to, parsed from VAR_HTTP_PATH. Usually 146252112Sdteske# 80 unless VAR_HTTP_PATH was one of the following forms: 147252112Sdteske# http://hostname:OTHER_PORT 148252112Sdteske# http://hostname:OTHER_PORT/* 149252112Sdteske# http://ip:OTHER_PORT 150252112Sdteske# http://ip:OTHER_PORT/* 151252112Sdteske# http://[ip6]:OTHER_PORT 152252112Sdteske# http://[ip6]:OTHER_PORT/* 153252112Sdteske# VAR_HTTP_DIR 154252112Sdteske# If VAR_HTTP_PATH contained a directory element (e.g., 155252112Sdteske# "http://localhost/pub") this variable contains only the 156252112Sdteske# directory element (e.g., "/pub"). 157252112Sdteske# 158252112Sdteskef_media_set_http() 159252112Sdteske{ 160252112Sdteske f_media_close 161252112Sdteske 162252112Sdteske local url 163252112Sdteske f_getvar $VAR_HTTP_PATH url 164252112Sdteske 165252112Sdteske # If we've been through here before ... 166252112Sdteske if f_struct device_network && [ "${url#$msg_other}" ]; then 167252112Sdteske f_dialog_yesno "$msg_reuse_old_http_site_settings" || url= 168252112Sdteske fi 169252112Sdteske 170252112Sdteske if [ ! "$url" ]; then 171252112Sdteske f_dialog_menu_media_http || return $FAILURE 172252112Sdteske f_getvar $VAR_HTTP_PATH url 173252112Sdteske fi 174252112Sdteske [ "$url" ] || return $FAILURE 175252112Sdteske 176252112Sdteske case "$url" in 177252112Sdteske other) 178252112Sdteske setvar $VAR_HTTP_PATH "http://" 179252112Sdteske f_variable_get_value $VAR_HTTP_PATH \ 180252112Sdteske "$msg_please_specify_url_of_freebsd_http_distribution" 181252112Sdteske f_getvar $VAR_HTTP_PATH url 182252112Sdteske if [ ! "${url#http://}" ]; then 183252112Sdteske unset $VAR_HTTP_PATH 184252112Sdteske return $FAILURE 185252112Sdteske fi 186252112Sdteske if [ ${#url} -gt ${URL_MAX:-261261} ]; then 187252112Sdteske f_show_msg "$msg_length_of_specified_url_is_too_long" \ 188252112Sdteske ${#url} ${URL_MAX:-261261} 189252112Sdteske unset $VAR_HTTP_PATH 190252112Sdteske return $FAILURE 191252112Sdteske fi 192252112Sdteske case "$url" in 193252112Sdteske http://*) : valid URL ;; 194252112Sdteske *) 195252112Sdteske f_show_msg "$msg_sorry_invalid_url" "$url" 196252112Sdteske unset $VAR_HTTP_PATH 197252112Sdteske return $FAILURE 198252112Sdteske esac 199252112Sdteske esac 200252112Sdteske case "$url" in 201252112Sdteske http://*) : valid URL ;; 202252112Sdteske *) 203252112Sdteske f_show_msg "$msg_sorry_invalid_url" "$url" 204252112Sdteske unset $VAR_HTTP_PATH 205252112Sdteske return $FAILURE 206252112Sdteske esac 207252112Sdteske 208252112Sdteske # Set the name of the HTTP device to the URL 209252112Sdteske f_struct_new DEVICE device_http 210252112Sdteske device_http set name "$url" 211252112Sdteske 212252112Sdteske if ! f_struct device_network || 213252112Sdteske ! f_dialog_yesno "$msg_youve_already_done_the_network_configuration" 214252112Sdteske then 215252112Sdteske f_struct device_network && 216252112Sdteske f_device_shutdown network 217252112Sdteske if ! f_device_select_tcp; then 218252112Sdteske unset $VAR_HTTP_PATH 219252112Sdteske return $FAILURE 220252112Sdteske fi 221252112Sdteske local dev 222252112Sdteske f_getvar $VAR_NETWORK_DEVICE dev 223252112Sdteske f_struct_copy "device_$dev" device_network 224252112Sdteske fi 225252112Sdteske if ! f_device_init network; then 226252112Sdteske f_dprintf "f_media_set_http: %s" "$msg_net_device_init_failed" 227252112Sdteske unset $VAR_HTTP_PATH 228252112Sdteske return $FAILURE 229252112Sdteske fi 230252112Sdteske 231252112Sdteske local hostname="${url#*://}" port=80 dir=/ 232252112Sdteske case "$hostname" in 233252112Sdteske # 234252112Sdteske # The order in-which the below individual cases appear is important! 235252112Sdteske # 236252112Sdteske "["*"]":*/*) # IPv6 address with port and directory 237252112Sdteske f_dprintf "Looks like an IPv6 addr with port/dir: %s" \ 238252112Sdteske "$hostname" 239252112Sdteske hostname="${hostname#\[}" 240252112Sdteske port="${hostname#*\]:}" 241252112Sdteske port="${port%%[!0-9]*}" 242252112Sdteske dir="/${hostname#*/}" 243252112Sdteske hostname="${hostname%%\]:*}" 244252112Sdteske ;; 245252112Sdteske "["*"]":*) # IPv6 address with port 246252112Sdteske f_dprintf "Looks like an IPv6 addr with port: %s" "$hostname" 247252112Sdteske hostname="${hostname#\[}" 248252112Sdteske port="${hostname#*\]:}" 249252112Sdteske port="${port%%[!0-9]*}" 250252112Sdteske hostname="${hostname%%\]:*}" 251252112Sdteske ;; 252252112Sdteske "["*"]"/*) # IPv6 address with directory 253252112Sdteske f_dprintf "Looks like an IPv6 addr with dir: %s" "$hostname" 254252112Sdteske hostname="${hostname#\[}" 255252112Sdteske dir="/${hostname#*/}" 256252112Sdteske hostname="${hostname%%\]*}" 257252112Sdteske ;; 258252112Sdteske "["*"]") # IPv6 address 259252112Sdteske f_dprintf "Looks like an IPv6 addr: %s" "$hostname" 260252112Sdteske hostname="${hostname#\[}" 261252112Sdteske hostname="${hostname%\]}" 262252112Sdteske ;; 263252112Sdteske # 264252112Sdteske # ^^^ IPv6 above / DNS Name or IPv4 below vvv 265252112Sdteske # 266252112Sdteske *:*/*) # DNS name or IPv4 address with port and directory 267252112Sdteske f_dprintf "Looks like a %s with port/dir: %s" \ 268252112Sdteske "DNS name or IPv4 addr" "$hostname" 269252112Sdteske port="${hostname#*:}" 270252112Sdteske port="${port%%[!0-9]*}" 271252112Sdteske dir="/${hostname#*/}" 272252112Sdteske hostname="${hostname%%:*}" 273252112Sdteske ;; 274252112Sdteske *:*) # DNS name or IPv4 address with port 275252112Sdteske f_dprintf "Looks like a DNS name or IPv4 addr with port: %s" \ 276252112Sdteske "$hostname" 277252112Sdteske port="${hostname#*:}" 278252112Sdteske hostname="${hostname%%:*}" 279252112Sdteske ;; 280252112Sdteske */*) # DNS name or IPv4 address with directory 281252112Sdteske f_dprintf "Looks like a DNS name or IPv4 addr with dir: %s" \ 282252112Sdteske "$hostname" 283252112Sdteske dir="/${hostname#*/}" 284252112Sdteske hostname="${hostname%%/*}" 285252112Sdteske ;; 286252112Sdteske *) # DNS name or IPv4 address 287252112Sdteske f_dprintf "Looks like a DNS name or IPv4 addr: %s" "$hostname" 288252112Sdteske : leave hostname as-is 289252112Sdteske esac 290252112Sdteske 291252112Sdteske f_dprintf "hostname = \`%s'" "$hostname" 292252112Sdteske f_dprintf "dir = \`%s'" "$dir" 293252112Sdteske f_dprintf "port \# = \`%d'" "$port" 294252112Sdteske 295252112Sdteske local ns 296252112Sdteske f_getvar $VAR_NAMESERVER ns 297252112Sdteske [ "$ns" ] || f_resolv_conf_nameservers ns 298252112Sdteske if [ "$ns" -a ! "$HTTP_SKIP_RESOLV" ] && ! { 299252112Sdteske f_validate_ipaddr "$hostname" || 300252112Sdteske f_validate_ipaddr6 "$hostname" 301252112Sdteske }; then 302252112Sdteske f_show_info "$msg_looking_up_host" "$hostname" 303252112Sdteske f_dprintf "%s: Looking up hostname, %s, using host(1)" \ 304252112Sdteske "f_media_set_http" "$hostname" 305252112Sdteske if ! f_quietly f_host_lookup "$hostname"; then 306252112Sdteske f_show_msg "$msg_cannot_resolve_hostname" "$hostname" 307252112Sdteske f_struct device_network && 308252112Sdteske f_device_shutdown network 309252112Sdteske f_struct_free device_network 310252112Sdteske unset $VAR_HTTP_PATH 311252112Sdteske return $FAILURE 312252112Sdteske fi 313252112Sdteske f_dprintf "Found DNS entry for %s successfully." "$hostname" 314252112Sdteske fi 315252112Sdteske 316252112Sdteske setvar $VAR_HTTP_HOST "$hostname" 317252112Sdteske setvar $VAR_HTTP_PORT "$port" 318252112Sdteske setvar $VAR_HTTP_DIR "$dir" 319252112Sdteske 320252112Sdteske device_http set type $DEVICE_TYPE_HTTP 321252112Sdteske device_http set init f_media_init_http 322252112Sdteske device_http set get f_media_get_http 323252112Sdteske device_http set shutdown f_media_shutdown_http 324252112Sdteske device_http set private network 325252112Sdteske f_struct_copy device_http device_media 326252112Sdteske f_struct_free device_http 327252112Sdteske 328252112Sdteske return $SUCCESS 329252112Sdteske} 330252112Sdteske 331252112Sdteske# f_http_check_access [$connect_only] 332252112Sdteske# 333252112Sdteske# Return success if able list a remote HTTP directory. If $connect_only is 334252112Sdteske# present and non-null, then returns success if a connection can be made. 335252112Sdteske# Variables from variable.subr that can be used to script user input: 336252112Sdteske# 337252112Sdteske# VAR_HTTP_HOST 338252112Sdteske# The HTTP server host name, IPv4 address or IPv6 address. 339252112Sdteske# Valid examples include: 340252112Sdteske# myhost 341252112Sdteske# 192.168.2.3 342252112Sdteske# ::1 343252112Sdteske# VAR_HTTP_PORT 344252112Sdteske# The TCP port to connect to when communicating with the server. 345252112Sdteske# VAR_HTTP_PATH 346252112Sdteske# The HTTP path sent to the server. Unused if $connect_only is 347252112Sdteske# present and non-NULL. 348252112Sdteske# 349252112Sdteskef_http_check_access() 350252112Sdteske{ 351252112Sdteske local connect_only="$1" hosts= 352252112Sdteske 353252112Sdteske local http_host http_port 354252112Sdteske f_getvar $VAR_HTTP_HOST http_host 355252112Sdteske f_getvar $VAR_HTTP_PORT http_port 356252112Sdteske 357252112Sdteske if ! { 358252112Sdteske f_validate_ipaddr "$http_host" || 359252112Sdteske f_validate_ipaddr6 "$http_host" || 360252112Sdteske { 361252112Sdteske f_dprintf "%s: Looking up hostname, %s, using host(1)" \ 362252112Sdteske "f_http_check_access" "$http_host" 363252112Sdteske f_host_lookup "$http_host" hosts 364252112Sdteske } 365252112Sdteske }; then 366252112Sdteske # All the above validations failed 367252112Sdteske [ "$hosts" ] && f_dialog_msgbox "$hosts" 368252112Sdteske unset $VAR_HTTP_HOST 369252112Sdteske return $FAILURE 370252112Sdteske elif [ ! "$hosts" ]; then 371252112Sdteske # One of the first two validations passed 372252112Sdteske hosts="$http_host" 373252112Sdteske fi 374252112Sdteske 375252112Sdteske local host connected= 376252112Sdteske for host in $hosts; do 377252112Sdteske f_quietly nc -nz "$host" "$http_port" || continue 378252112Sdteske connected=1; break 379252112Sdteske done 380252112Sdteske if [ ! "$connected" ]; then 381252112Sdteske f_show_msg "$msg_couldnt_connect_to_server http://%s:%s/" \ 382252112Sdteske "$http_host" "$http_port" 383252112Sdteske unset $VAR_HTTP_HOST 384252112Sdteske return $FAILURE 385252112Sdteske fi 386252112Sdteske [ "$connect_only" ] && return $SUCCESS 387252112Sdteske 388252112Sdteske local http_path 389252112Sdteske f_getvar $VAR_HTTP_PATH http_path 390252112Sdteske f_show_info "$msg_checking_access_to" "$http_path" 391252112Sdteske 392252112Sdteske local rx 393252112Sdteske if ! rx=$( 394252112Sdteske printf "GET /%s/ HTTP/1.0\r\n\r\n" "${http_path%/}" | 395252112Sdteske nc -n "$host" "$http_port" 396252112Sdteske ); then 397252112Sdteske f_show_msg "$msg_couldnt_connect_to_server http://%s:%s/" \ 398252112Sdteske "$http_host" "$http_port" 399252112Sdteske unset $VAR_HTTP_HOST 400252112Sdteske return $FAILURE 401252112Sdteske fi 402252112Sdteske 403252112Sdteske local hdr 404252112Sdteske hdr=$( echo "$rx" | awk '/^\r$/{exit}{print}' ) 405252112Sdteske 406252112Sdteske local http_found=$FAILURE 407252112Sdteske if echo "$hdr" | awk ' 408252112Sdteske BEGIN { found = 0 } 409252112Sdteske /^HTTP.... 200 / { 410252112Sdteske found = 1 411252112Sdteske exit 412252112Sdteske } 413252112Sdteske END { exit ! found } 414252112Sdteske '; then 415252112Sdteske http_found=$SUCCESS 416252112Sdteske fi 417252112Sdteske 418252112Sdteske return $http_found 419252112Sdteske} 420252112Sdteske 421252112Sdteske# f_media_init_http $device 422252112Sdteske# 423252112Sdteske# Initializes the HTTP media device. Returns success if able to confirm the 424252112Sdteske# existence of at least one known HTTP server release path directly via HTTP 425252112Sdteske# using f_http_check_access(), above. 426252112Sdteske# 427252112Sdteske# Variables from variable.subr that can be used to script user input: 428252112Sdteske# 429252112Sdteske# VAR_HTTP_HOST 430252112Sdteske# The HTTP server to connect to. Must be set. Also see 431252112Sdteske# f_http_check_access() for additional variables. 432252112Sdteske# VAR_RELNAME 433252112Sdteske# Usually set to `uname -r' but can be overridden. 434252112Sdteske# VAR_HTTP_PATH 435252112Sdteske# The HTTP path sent to the server. Usually set by calling 436252112Sdteske# f_media_set_http(). 437252112Sdteske# 438252112Sdteske# Meanwhile, after successful execution, the following variables (also from 439252112Sdteske# variable.subr) are set: 440252112Sdteske# 441252112Sdteske# VAR_HTTP_PATH 442252112Sdteske# The [possibly] adjusted VAR_HTTP_PATH that was found to contain 443252112Sdteske# a valid FreeBSD repository. 444252112Sdteske# 445252112Sdteskef_media_init_http() 446252112Sdteske{ 447252112Sdteske local dev="$1" 448252112Sdteske f_dprintf "Init routine called for HTTP device. dev=[%s]" "$dev" 449252112Sdteske 450252112Sdteske # 451252112Sdteske # First verify access 452252112Sdteske # 453252112Sdteske local connect_only=1 454252112Sdteske f_http_check_access $connect_only 455252112Sdteske 456252112Sdteske local http_host 457252112Sdteske f_getvar $VAR_HTTP_HOST http_host 458252112Sdteske while [ ! "$http_host" ]; do 459252112Sdteske f_media_set_http || return $FAILURE 460252112Sdteske f_http_check_access $connect_only 461252112Sdteske f_getvar $VAR_HTTP_HOST http_host 462252112Sdteske done 463252112Sdteske 464252112Sdteske local http_path http_found=$FAILURE 465252112Sdteske while :; do 466252112Sdteske # 467252112Sdteske # Now that we've verified that the path we're given is ok, 468252112Sdteske # let's try to be a bit intelligent in locating the release we 469252112Sdteske # are looking for. First off, if the release is specified as 470252112Sdteske # "__RELEASE" or "any", then just assume that the current 471252112Sdteske # directory is the one we want and give up. 472252112Sdteske # 473252112Sdteske local rel 474252112Sdteske f_getvar $VAR_RELNAME rel 475252112Sdteske f_dprintf "f_media_init_http: rel=[%s]" "$rel" 476252112Sdteske 477252112Sdteske case "$rel" in 478252112Sdteske __RELEASE|any) 479252112Sdteske setvar $VAR_HTTP_PATH "$VAR_HTTP_DIR" 480252112Sdteske f_http_check_access 481252112Sdteske http_found=$? 482252112Sdteske ;; 483252112Sdteske *) 484252112Sdteske # 485252112Sdteske # Ok, since we have a release variable, let's walk 486252112Sdteske # through the list of directories looking for a release 487252112Sdteske # directory. First successful path wins. 488252112Sdteske # 489252112Sdteske local fdir hp 490252112Sdteske f_getvar $VAR_HTTP_PATH%/ hp 491252112Sdteske for fdir in $HTTP_DIRS; do 492252112Sdteske setvar $VAR_HTTP_PATH "$hp/$fdir/$rel" 493252112Sdteske if f_http_check_access; then 494252112Sdteske http_found=$SUCCESS 495252112Sdteske break 496252112Sdteske fi 497252112Sdteske done 498252112Sdteske esac 499252112Sdteske 500252112Sdteske [ $http_found -eq $SUCCESS ] && break 501252112Sdteske 502252112Sdteske f_getvar $VAR_HTTP_PATH http_path 503252112Sdteske f_show_msg "$msg_please_check_the_url_and_try_again" \ 504252112Sdteske "$http_path" 505252112Sdteske 506252112Sdteske unset $VAR_HTTP_PATH 507252112Sdteske f_media_set_http || break 508252112Sdteske done 509252112Sdteske 510252112Sdteske return $http_found 511252112Sdteske} 512252112Sdteske 513252112Sdteske# f_media_get_http $device $file [$probe_only] 514252112Sdteske# 515252112Sdteske# Returns data from $file on an HTTP server using nc(1). Please note that 516252112Sdteske# $device is unused but must be present (even if null). Information is instead 517252112Sdteske# gathered from the environment. If $probe_only is both present and non-NULL, 518252112Sdteske# this function exits after receiving the HTTP header response from the server 519252112Sdteske# (if the HTTP response code is 200, success is returned; otherwise failure). 520252112Sdteske# 521252112Sdteske# The variables used to configure the connection are as follows (all of which 522252112Sdteske# are configured by f_media_set_http above): 523252112Sdteske# 524252112Sdteske# VAR_HTTP_HOST 525252112Sdteske# HTTP server which to connect. Can be an IPv4 address, IPv6 526252112Sdteske# address, or DNS hostname of your choice. 527252112Sdteske# VAR_HTTP_PORT 528252112Sdteske# TCP port to connect on; see f_media_set_http above. 529252112Sdteske# VAR_HTTP_PATH 530252112Sdteske# Directory prefix to use when requesting $file. Default is `/' 531252112Sdteske# unless f_media_init_http was able to use f_http_check_access 532252112Sdteske# to validate one of the defaults in $HTTP_DIRS (see GLOBALS at 533252112Sdteske# the top of this file); assuming VAR_RELNAME was not set to 534252112Sdteske# either `__RELEASE' or `any' (indicating that the global set of 535252112Sdteske# $HTTP_DIRS should be ignored). 536252112Sdteske# 537252112Sdteske# See variable.subr for additional information. 538252112Sdteske# 539252112Sdteske# Example usage: 540252112Sdteske# f_media_set_http 541252112Sdteske# f_media_get_http media $file 542252112Sdteske# 543252112Sdteskef_media_get_http() 544252112Sdteske{ 545252112Sdteske local dev="$1" file="$2" probe_only="$3" hosts= 546252112Sdteske 547252112Sdteske f_dprintf "f_media_get_http: dev=[%s] file=[%s] probe_only=%s" \ 548252112Sdteske "$dev" "$file" "$probe_only" 549252112Sdteske 550252112Sdteske local http_host http_port 551252112Sdteske f_getvar $VAR_HTTP_HOST http_host 552252112Sdteske f_getvar $VAR_HTTP_PORT http_port 553252112Sdteske 554252112Sdteske if ! { 555252112Sdteske f_validate_ipaddr "$http_host" || 556252112Sdteske f_validate_ipaddr6 "$http_host" || 557252112Sdteske { 558252112Sdteske f_dprintf "%s: Looking up hostname, %s, using host(1)" \ 559252112Sdteske "f_media_get_http" "$http_host" 560252112Sdteske f_host_lookup "$http_host" hosts 561252112Sdteske } 562252112Sdteske }; then 563252112Sdteske # All the above validations failed 564252112Sdteske [ "$hosts" ] && f_dialog_msgbox "$hosts" 565252112Sdteske return $FAILURE 566252112Sdteske elif [ ! "$hosts" ]; then 567252112Sdteske # One of the first two validations passed 568252112Sdteske hosts="$http_host" 569252112Sdteske fi 570252112Sdteske 571252112Sdteske local host connected= 572252112Sdteske for host in $hosts; do 573252112Sdteske f_quietly nc -nz "$host" "$http_port" || continue 574252112Sdteske connected=1; break 575252112Sdteske done 576252112Sdteske if [ ! "$connected" ]; then 577252112Sdteske f_show_msg "$msg_couldnt_connect_to_server http://%s:%s/" \ 578252112Sdteske "$http_host" "$http_port" 579252112Sdteske return $FAILURE 580252112Sdteske fi 581252112Sdteske 582252112Sdteske local http_path 583252112Sdteske f_getvar $VAR_HTTP_PATH%/ http_path 584252112Sdteske local url="/$http_path/$file" rx 585252112Sdteske 586252112Sdteske f_dprintf "sending http request for: %s" "$url" 587252112Sdteske printf "GET %s HTTP/1.0\r\n\r\n" "$url" | nc -n "$host" "$http_port" | 588252112Sdteske ( 589252112Sdteske # 590252112Sdteske # scan the headers of the response 591252112Sdteske # this is extremely quick'n dirty 592252112Sdteske # 593252112Sdteske 594252112Sdteske rv=0 595252112Sdteske while read LINE; do 596252112Sdteske case "$LINE" in 597252112Sdteske HTTP*) 598252112Sdteske f_dprintf "received response: %s" "$LINE" 599252112Sdteske set -- $LINE; rv=$2 600252112Sdteske f_isinteger "$rv" || rv=0 601252112Sdteske ;; 602252112Sdteske *) 603252112Sdteske [ "${LINE% 604252112Sdteske}" ] || break # End of headers 605252112Sdteske esac 606252112Sdteske done 607252112Sdteske 608252112Sdteske [ $rv -ge 500 ] && exit 5 609252112Sdteske [ $rv -eq 404 ] && exit 44 610252112Sdteske [ $rv -ge 400 ] && exit 4 611252112Sdteske [ $rv -ge 300 ] && exit 3 612252112Sdteske [ $rv -eq 200 ] || exit $FAILURE 613252112Sdteske 614252112Sdteske if [ ! "$probe_only" ]; then 615252112Sdteske cat # output the rest ``as-is'' 616252112Sdteske fi 617252112Sdteske exit 200 618252112Sdteske ) 619252112Sdteske local retval=$? 620252112Sdteske [ $retval -eq 200 ] && return $SUCCESS 621252112Sdteske [ "$probe_only" ] && return $FAILURE 622252112Sdteske 623252112Sdteske case "$retval" in 624252112Sdteske 5) f_show_msg "$msg_server_error_when_requesting_url" "$url" ;; 625252112Sdteske 44) f_show_msg "$msg_url_was_not_found" "$url" ;; 626252112Sdteske 4) f_show_msg "$msg_client_error" ;; 627252112Sdteske *) f_show_msg "$msg_error_when_requesting_url" "$url" ;; 628252112Sdteske esac 629252112Sdteske return $FAILURE 630252112Sdteske} 631252112Sdteske 632252112Sdteske############################################################ MAIN 633252112Sdteske 634252112Sdteskef_dprintf "%s: Successfully loaded." media/http.subr 635252112Sdteske 636252112Sdteskefi # ! $_MEDIA_HTTP_SUBR 637