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POL_GoG_download

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New installer

Creator Message

Quentin PÂRIS

Information

This installer has been approved by the team.

Informations

Platforms:
Downloads: 316631
Wine: System

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Description

Ask the user about its credentials, then download all the pieces of a GOG.com game, checking their integrity using the provided MD5 hashes.

Parameters:
- 1: GOG ID of game (like the last component of its gamecard URL)
- (optional: --alternate BASENAME BASEINDEX)
- (optional: --patch)
- (optional: --bonus)
- 2..: lowercase MD5 hash of each piece

Specifying --alternate allows to download a secondary installer for the same game (example: Alone in the Dark 2 and 3 are secondary installers for Alone in the Dark)
Default BASENAME: setup_<GOG ID>
Default BASEINDEX: 0

Specify --patch for game updates URLs
Specify --bonus for bonus contents URLs

Some hashes can be an empty string ("") to disable hash checking (not recommended).

Pieces will be named BASENAME.exe, BASENAME-1.bin, BASENAME-2.bin, etc. and the function assigns $POL_GoG_location with the full path of the first piece.

Source code

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#!/bin/bash
 
local GAME="$1"
# option: --altername 'basename' baseindex: get pieces starting from another index than 0
# options: --patch: patches | --bonus: bonus contents
# 2.. MD5: hash of the pieces
# Will download as many pieces as extra parameters
# Hashes are recommended for large downloads anyway
shift
 
local BASENAME="setup_$GAME"
local INDEX=0
if [ "$1" = "--alternate" ]; then
        BASENAME="$2"
        INDEX="$3"
        shift 3
fi
 
# URL = ${BASEURL}/${GAME}/${INDEXPREFIX}${INDEX}
local BASEURL="https://secure.gog.com/downlink"
local INDEXPREFIX="en1installer"
if [ "$1" = "--patch" ]; then
        INDEXPREFIX="en1patch"
        shift
elif [ "$1" = "--bonus" ]; then
        BASEURL="https://secure.gog.com/downlink/file"
        INDEXPREFIX=""
        shift
fi
 
local PIECES="$#"
 
local GOG_REPO="$(POL_Config_Read GOG_REPO)"
 
if [ -z "$GOG_REPO" ]; then
        POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
        GOG_REPO="$APP_ANSWER"
        POL_Config_Write GOG_REPO "$GOG_REPO"
fi
 
 
local ALREADY_IN_SESSION="$GOG_LOGIN"
[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_login
 
# Download
[ -d "$GOG_REPO" ] || mkdir -p "$GOG_REPO"
cd "$GOG_REPO" || cd "$POL_USER_ROOT/tmp/"
POL_Debug_Message "Will download into $PWD"
 
download_piece ()
{
        # 1: URL
        # 2: filename
        # 3: MD5 hash
        # 4: Title
 
        # Failed piece from previous download, maybe reference MD5 was corrected?
        local FAILEDPIECE="$2.failed"
        if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
                        mv "$FAILEDPIECE" "$2"
                fi
        fi
 
        [ -e "$2" ] && return
 
        local TMPPIECE="$2.part"
        while true; do
                POL_System_wget "$1" "$4" --referer=https://www.gog.com/ --no-check-certificate --keep-session-cookies --load-cookies="$COOKIES_FINAL" --save-cookies="$COOKIES_FINAL" --continue -O "$TMPPIECE"
 
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ ! -e "$TMPPIECE" ]; then
                        GOGDMSG="$(eval_gettext 'Download failed')"
                elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
                        GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
                        mv "$TMPPIECE" "$FAILEDPIECE"
                else
                        # Success
                        mv "$TMPPIECE" "$2"
                        [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
                        break
                fi
 
                POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
                [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
        done
}
 
download_piece "$BASEURL/$GAME/${INDEXPREFIX}$INDEX" "$BASENAME.exe" "$1" "$BASENAME (1/$PIECES)"
 
if [ $PIECES -gt 1 ]; then
        local n=2
        while [ $n -le $PIECES ]; do
                download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
                let n=$((n+1))
        done
fi
 
# If we were already in session, it's caller responsability to close it
[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_logout
 
POL_GoG_downloaded="True"
POL_GoG_location="$PWD/$BASENAME.exe"

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Member Message

petch Wednesday 17 February 2016 at 20:20

petch

Information

This update has been approved by the team.

Message

bugfixes for login/logout integration

Differences

New source code

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#!/bin/bash
 
local GAME="$1"
# option: --altername 'basename' baseindex: get pieces starting from another index than 0
# options: --patch: patches | --bonus: bonus contents
# 2.. MD5: hash of the pieces
# Will download as many pieces as extra parameters
# Hashes are recommended for large downloads anyway
shift
 
local BASENAME="setup_$GAME"
local INDEX=0
if [ "$1" = "--alternate" ]; then
        BASENAME="$2"
        INDEX="$3"
        shift 3
fi
 
# URL = ${BASEURL}/${GAME}/${INDEXPREFIX}${INDEX}
local BASEURL="https://secure.gog.com/downlink"
local INDEXPREFIX="en1installer"
if [ "$1" = "--patch" ]; then
        INDEXPREFIX="en1patch"
        shift
elif [ "$1" = "--bonus" ]; then
        BASEURL="https://secure.gog.com/downlink/file"
        INDEXPREFIX=""
        shift
fi
 
local PIECES="$#"
 
local GOG_REPO="$(POL_Config_Read GOG_REPO)"
 
if [ -z "$GOG_REPO" ]; then
        POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
        GOG_REPO="$APP_ANSWER"
        POL_Config_Write GOG_REPO "$GOG_REPO"
fi
 
 
local ALREADY_IN_SESSION="$GOG_LOGIN"
[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_login
 
# Download
[ -d "$GOG_REPO" ] || mkdir -p "$GOG_REPO"
cd "$GOG_REPO" || cd "$POL_USER_ROOT/tmp/"
POL_Debug_Message "Will download into $PWD"
 
download_piece ()
{
        # 1: URL
        # 2: filename
        # 3: MD5 hash
        # 4: Title
 
        # Failed piece from previous download, maybe reference MD5 was corrected?
        local FAILEDPIECE="$2.failed"
        if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
                        mv "$FAILEDPIECE" "$2"
                fi
        fi
 
        [ -e "$2" ] && return
 
        local TMPPIECE="$2.part"
        while true; do
                POL_System_wget "$1" "$4" --referer=https://www.gog.com/ --no-check-certificate --keep-session-cookies --load-cookies="$COOKIES_FINAL" --save-cookies="$COOKIES_FINAL" --continue -O "$TMPPIECE"
 
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ ! -e "$TMPPIECE" ]; then
                        GOGDMSG="$(eval_gettext 'Download failed')"
                elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
                        GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
                        mv "$TMPPIECE" "$FAILEDPIECE"
                else
                        # Success
                        mv "$TMPPIECE" "$2"
                        [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
                        break
                fi
 
                POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
                [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
        done
}
 
download_piece "$BASEURL/$GAME/${INDEXPREFIX}$INDEX" "$BASENAME.exe" "$1" "$BASENAME (1/$PIECES)"
 
if [ $PIECES -gt 1 ]; then
        local n=2
        while [ $n -le $PIECES ]; do
                download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
                let n=$((n+1))
        done
fi
 
# If we were already in session, it's caller responsability to close it
[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_logout
 
POL_GoG_downloaded="True"
POL_GoG_location="$PWD/$BASENAME.exe"

Replies

Edited by petch

petch Wednesday 17 February 2016 at 20:03

petch

Warning

This update has not been approved yet by the team.
Use it at your own risk

Message

Use POL_GoG_login/logout

Differences

@@ -39,36 +39,8 @@
 fi
  
  
-# Login / open session
-local COOKIES="$POL_USER_ROOT/tmp/gog_cookies"
-local COOKIES_2="$POL_USER_ROOT/tmp/gog_cookies2"
-while true; do
-   POL_SetupWindow_login "$(eval_gettext 'Please enter your gog.com login to download $BASENAME')" "$TITLE" "http://www.gog.com/"
-
-   POL_SetupWindow_wait "$(eval_gettext 'Please wait...')" "$TITLE"
-
-   rm "$COOKIES" 2> /dev/null
-   rm "$COOKIES_2" 2> /dev/null
-   gutm="$($POL_WGET http://www.gog.com/ -O- --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" | sed -n 's/^.*id="gutm" value="\([^"]*\)".*$/\1/p')"
-   gutm="$(POL_Website_urlencode "$gutm")"
-
-   buk="$($POL_WGET "http://www.gog.com/user/ajax" -O- --post-data="a=get&c=gamecard&p1=false&p2=false&auth=&gutm=$gutm" --save-cookies=$COOKIES_2 --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" |sed -n 's/^.*"buk":"\([^"]*\)".*/\1/p')"
-   buk="$(POL_Website_urlencode "$buk")"
-
-   $POL_WGET https://secure.gog.com/login --save-cookies=$COOKIES --load-cookies=$COOKIES_2 --post-data="log_email=$(POL_Website_urlencode "$POL_LOGIN")&log_password=$(POL_Website_urlencode "$POL_PASSWORD")&redirectOk=/&unlockSettings=0&btn_login=Log me in&buk=$buk" --no-check-certificate -O- --header="DNT: 1" --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0"
-
-   unset POL_LOGIN POL_PASSWORD
-
-   local AUTH_SESSION="$(awk '$6 == "guc_al" { print $7 }' $COOKIES)"
-   [ "$AUTH_SESSION" != "0" ] && break
-   unset AUTH_SESSION
-
-   POL_SetupWindow_question "$(eval_gettext 'Gog.com login failed, try again?')" "$TITLE"
-   if [ "$APP_ANSWER" = "FALSE" ]; then
-       POL_SetupWindow_Close
-       exit
-   fi
-done
+local ALREADY_IN_SESSION="$GOG_LOGIN"
+[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_login
  
 # Download
 [ -d "$GOG_REPO" ] || mkdir -p "$GOG_REPO"
@@ -125,8 +97,8 @@
    done
 fi
  
-# Close session
-rm -f "$COOKIES"
+# If we were already in session, it's caller responsability to close it
+[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_logout
  
 POL_GoG_downloaded="True"
 POL_GoG_location="$PWD/$BASENAME.exe"

New source code

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#!/bin/bash
 
local GAME="$1"
# option: --altername 'basename' baseindex: get pieces starting from another index than 0
# options: --patch: patches | --bonus: bonus contents
# 2.. MD5: hash of the pieces
# Will download as many pieces as extra parameters
# Hashes are recommended for large downloads anyway
shift
 
local BASENAME="setup_$GAME"
local INDEX=0
if [ "$1" = "--alternate" ]; then
        BASENAME="$2"
        INDEX="$3"
        shift 3
fi
 
# URL = ${BASEURL}/${GAME}/${INDEXPREFIX}${INDEX}
local BASEURL="https://secure.gog.com/downlink"
local INDEXPREFIX="en1installer"
if [ "$1" = "--patch" ]; then
        INDEXPREFIX="en1patch"
        shift
elif [ "$1" = "--bonus" ]; then
        BASEURL="https://secure.gog.com/downlink/file"
        INDEXPREFIX=""
        shift
fi
 
local PIECES="$#"
 
local GOG_REPO="$(POL_Config_Read GOG_REPO)"
 
if [ -z "$GOG_REPO" ]; then
        POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
        GOG_REPO="$APP_ANSWER"
        POL_Config_Write GOG_REPO "$GOG_REPO"
fi
 
 
local ALREADY_IN_SESSION="$GOG_LOGIN"
[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_login
 
# Download
[ -d "$GOG_REPO" ] || mkdir -p "$GOG_REPO"
cd "$GOG_REPO" || cd "$POL_USER_ROOT/tmp/"
POL_Debug_Message "Will download into $PWD"
 
download_piece ()
{
        # 1: URL
        # 2: filename
        # 3: MD5 hash
        # 4: Title
 
        # Failed piece from previous download, maybe reference MD5 was corrected?
        local FAILEDPIECE="$2.failed"
        if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
                        mv "$FAILEDPIECE" "$2"
                fi
        fi
 
        [ -e "$2" ] && return
 
        local TMPPIECE="$2.part"
        while true; do
                POL_System_wget "$1" "$4" --no-check-certificate --load-cookies="$COOKIES" --continue -O "$TMPPIECE"
 
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ ! -e "$TMPPIECE" ]; then
                        GOGDMSG="$(eval_gettext 'Download failed')"
                elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
                        GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
                        mv "$TMPPIECE" "$FAILEDPIECE"
                else
                        # Success
                        mv "$TMPPIECE" "$2"
                        [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
                        break
                fi
 
                POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
                [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
        done
}
 
download_piece "$BASEURL/$GAME/${INDEXPREFIX}$INDEX" "$BASENAME.exe" "$1" "$BASENAME (1/$PIECES)"
 
if [ $PIECES -gt 1 ]; then
        local n=2
        while [ $n -le $PIECES ]; do
                download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
                let n=$((n+1))
        done
fi
 
# If we were already in session, it's caller responsability to close it
[ "$ALREADY_IN_SESSION" ] || POL_Call POL_GoG_logout
 
POL_GoG_downloaded="True"
POL_GoG_location="$PWD/$BASENAME.exe"

Replies

Mystic-Mirage Sunday 29 November 2015 at 1:36

Mystic-Mirage

Message

As I can see -- English language is only supported (hardcoded) for now? Any chance to support other languages? For example, GOG's Pathologic Classic HD game has three installers -- en1installer* for English, pl1installer* for Polish and ru1installer for Russian.

Replies

petch

Sunday 29 November 2015 at 10:35

Until this script is fixed to work at all, no need to add languages support (that didn't exist when it was written)

trevorh Tuesday 5 August 2014 at 17:25

trevorh

Warning

This update has not been approved yet by the team.
Use it at your own risk

Message

Passing skip will now skip that place file.

Differences

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#!/bin/bash
 
local GAME="$1"
# option: --altername 'basename' baseindex: get pieces starting from another index than 0
# options: --patch: patches | --bonus: bonus contents
# 2.. MD5: hash of the pieces
# Will download as many pieces as extra parameters
# Passing skip will skip trying to download that place file
# Hashes are recommended for large downloads anyway
shift
 
local BASENAME="setup_$GAME"
local INDEX=0
if [ "$1" = "--alternate" ]; then
        BASENAME="$2"
        INDEX="$3"
        shift 3
fi
 
# URL = ${BASEURL}/${GAME}/${INDEXPREFIX}${INDEX}
local BASEURL="https://secure.gog.com/downlink"
local INDEXPREFIX="en1installer"
if [ "$1" = "--patch" ]; then
        INDEXPREFIX="en1patch"
        shift
elif [ "$1" = "--bonus" ]; then
        BASEURL="https://secure.gog.com/downlink/file"
        INDEXPREFIX=""
        shift
fi
 
local PIECES=0
for arg in "$@"; do
        if [ "${arg}" != "skip" ]; then
                PIECES=$((${PIECES}+1))
        fi
done
 
local GOG_REPO="$(POL_Config_Read GOG_REPO)"
 
if [ -z "$GOG_REPO" ]; then
        POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
        GOG_REPO="$APP_ANSWER"
        POL_Config_Write GOG_REPO "$GOG_REPO"
fi
 
 
# Login / open session
local COOKIES="$POL_USER_ROOT/tmp/gog_cookies"
local COOKIES_2="$POL_USER_ROOT/tmp/gog_cookies2"
while true; do
        POL_SetupWindow_login "$(eval_gettext 'Please enter your gog.com login to download $BASENAME')" "$TITLE" "http://www.gog.com/"
 
        POL_SetupWindow_wait "$(eval_gettext 'Please wait...')" "$TITLE"
 
        rm "$COOKIES" 2> /dev/null
        rm "$COOKIES_2" 2> /dev/null
        gutm="$($POL_WGET http://www.gog.com/ -O- --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" | sed -n 's/^.*id="gutm" value="\([^"]*\)".*$/\1/p')"
        gutm="$(POL_Website_urlencode "$gutm")"
 
        buk="$($POL_WGET "http://www.gog.com/user/ajax" -O- --post-data="a=get&c=gamecard&p1=false&p2=false&auth=&gutm=$gutm" --save-cookies=$COOKIES_2 --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" |sed -n 's/^.*"buk":"\([^"]*\)".*/\1/p')"
        buk="$(POL_Website_urlencode "$buk")"
 
        $POL_WGET https://secure.gog.com/login --save-cookies=$COOKIES --load-cookies=$COOKIES_2 --post-data="log_email=$(POL_Website_urlencode "$POL_LOGIN")&log_password=$(POL_Website_urlencode "$POL_PASSWORD")&redirectOk=/&unlockSettings=0&btn_login=Log me in&buk=$buk" --no-check-certificate -O- --header="DNT: 1" --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0"
 
        unset POL_LOGIN POL_PASSWORD
 
        local AUTH_SESSION="$(awk '$6 == "guc_al" { print $7 }' $COOKIES)"
        [ "$AUTH_SESSION" != "0" ] && break
        unset AUTH_SESSION
 
        POL_SetupWindow_question "$(eval_gettext 'Gog.com login failed, try again?')" "$TITLE"
        if [ "$APP_ANSWER" = "FALSE" ]; then
                POL_SetupWindow_Close
                exit
        fi
done
 
# Download
[ -d "$GOG_REPO" ] || mkdir -p "$GOG_REPO"
cd "$GOG_REPO" || cd "$POL_USER_ROOT/tmp/"
POL_Debug_Message "Will download into $PWD"
 
download_piece ()
{
        # 1: URL
        # 2: filename
        # 3: MD5 hash
        # 4: Title
 
        # Failed piece from previous download, maybe reference MD5 was corrected?
        local FAILEDPIECE="$2.failed"
        if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
                        mv "$FAILEDPIECE" "$2"
                fi
        fi
 
        [ -e "$2" ] && return
 
        local TMPPIECE="$2.part"
        while true; do
                POL_System_wget "$1" "$4" --no-check-certificate --load-cookies="$COOKIES" --continue -O "$TMPPIECE"
 
                POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
                if [ ! -e "$TMPPIECE" ]; then
                        GOGDMSG="$(eval_gettext 'Download failed')"
                elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
                        GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
                        mv "$TMPPIECE" "$FAILEDPIECE"
                else
                        # Success
                        mv "$TMPPIECE" "$2"
                        [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
                        break
                fi
 
                POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
                [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
        done
}
 
download_piece "$BASEURL/$GAME/${INDEXPREFIX}$INDEX" "$BASENAME.exe" "$1" "$BASENAME (1/$PIECES)"
 
if [ $# -gt 1 ]; then
        local n=2
        local offset=0
        while [ $n -le $# ]; do
                if [ "${!n}" != "skip" ]; then
                        download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1-offset)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
                else
                        let offset=$((offset+1))
                fi
                let n=$((n+1))
        done
fi
 
# Close session
rm -f "$COOKIES"
 
POL_GoG_downloaded="True"
POL_GoG_location="$PWD/$BASENAME.exe"

Replies

trevorh Tuesday 5 August 2014 at 8:14

trevorh

Warning

This update has not been approved yet by the team.
Use it at your own risk

Message

Allow scripts to skip missing indices by passing an empty parameter.

For use where GOG does not use consecutive indices such as with Heroes of Might and Magic 5.

Differences

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@@ -5,37 +5,43 @@
 # options: --patch: patches | --bonus: bonus contents
 # 2.. MD5: hash of the pieces
 # Will download as many pieces as extra parameters
+# An empty parameter will skip trying to download that place file
 # Hashes are recommended for large downloads anyway
 shift
  
 local BASENAME="setup_$GAME"
 local INDEX=0
 if [ "$1" = "--alternate" ]; then
-   BASENAME="$2"
-   INDEX="$3"
-   shift 3
+    BASENAME="$2"
+    INDEX="$3"
+    shift 3
 fi
  
 # URL = ${BASEURL}/${GAME}/${INDEXPREFIX}${INDEX}
 local BASEURL="https://secure.gog.com/downlink"
 local INDEXPREFIX="en1installer"
 if [ "$1" = "--patch" ]; then
-        INDEXPREFIX="en1patch"
-   shift
+    INDEXPREFIX="en1patch"
+    shift
 elif [ "$1" = "--bonus" ]; then
-   BASEURL="https://secure.gog.com/downlink/file"
-        INDEXPREFIX=""
-   shift
+    BASEURL="https://secure.gog.com/downlink/file"
+    INDEXPREFIX=""
+    shift
 fi
  
-local PIECES="$#"
+local PIECES=0
+for arg in "$@"; do
+    if [ "${arg}" != "" ]; then
+        PIECES=$((${PIECES}+1))
+    fi
+done
  
 local GOG_REPO="$(POL_Config_Read GOG_REPO)"
  
 if [ -z "$GOG_REPO" ]; then
-   POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
-   GOG_REPO="$APP_ANSWER"
-   POL_Config_Write GOG_REPO "$GOG_REPO"
+    POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
+    GOG_REPO="$APP_ANSWER"
+    POL_Config_Write GOG_REPO "$GOG_REPO"
 fi
  
  
@@ -43,31 +49,31 @@
 local COOKIES="$POL_USER_ROOT/tmp/gog_cookies"
 local COOKIES_2="$POL_USER_ROOT/tmp/gog_cookies2"
 while true; do
-   POL_SetupWindow_login "$(eval_gettext 'Please enter your gog.com login to download $BASENAME')" "$TITLE" "http://www.gog.com/"
+    POL_SetupWindow_login "$(eval_gettext 'Please enter your gog.com login to download $BASENAME')" "$TITLE" "http://www.gog.com/"
  
-   POL_SetupWindow_wait "$(eval_gettext 'Please wait...')" "$TITLE"
+    POL_SetupWindow_wait "$(eval_gettext 'Please wait...')" "$TITLE"
  
-   rm "$COOKIES" 2> /dev/null
-   rm "$COOKIES_2" 2> /dev/null
-   gutm="$($POL_WGET http://www.gog.com/ -O- --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" | sed -n 's/^.*id="gutm" value="\([^"]*\)".*$/\1/p')"
-   gutm="$(POL_Website_urlencode "$gutm")"
+    rm "$COOKIES" 2> /dev/null
+    rm "$COOKIES_2" 2> /dev/null
+    gutm="$($POL_WGET http://www.gog.com/ -O- --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" | sed -n 's/^.*id="gutm" value="\([^"]*\)".*$/\1/p')"
+    gutm="$(POL_Website_urlencode "$gutm")"
  
-   buk="$($POL_WGET "http://www.gog.com/user/ajax" -O- --post-data="a=get&c=gamecard&p1=false&p2=false&auth=&gutm=$gutm" --save-cookies=$COOKIES_2 --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" |sed -n 's/^.*"buk":"\([^"]*\)".*/\1/p')"
-   buk="$(POL_Website_urlencode "$buk")"
+    buk="$($POL_WGET "http://www.gog.com/user/ajax" -O- --post-data="a=get&c=gamecard&p1=false&p2=false&auth=&gutm=$gutm" --save-cookies=$COOKIES_2 --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" |sed -n 's/^.*"buk":"\([^"]*\)".*/\1/p')"
+    buk="$(POL_Website_urlencode "$buk")"
  
-   $POL_WGET https://secure.gog.com/login --save-cookies=$COOKIES --load-cookies=$COOKIES_2 --post-data="log_email=$(POL_Website_urlencode "$POL_LOGIN")&log_password=$(POL_Website_urlencode "$POL_PASSWORD")&redirectOk=/&unlockSettings=0&btn_login=Log me in&buk=$buk" --no-check-certificate -O- --header="DNT: 1" --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0"
+    $POL_WGET https://secure.gog.com/login --save-cookies=$COOKIES --load-cookies=$COOKIES_2 --post-data="log_email=$(POL_Website_urlencode "$POL_LOGIN")&log_password=$(POL_Website_urlencode "$POL_PASSWORD")&redirectOk=/&unlockSettings=0&btn_login=Log me in&buk=$buk" --no-check-certificate -O- --header="DNT: 1" --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0"
  
-   unset POL_LOGIN POL_PASSWORD
+    unset POL_LOGIN POL_PASSWORD
  
-   local AUTH_SESSION="$(awk '$6 == "guc_al" { print $7 }' $COOKIES)"
-   [ "$AUTH_SESSION" != "0" ] && break
-   unset AUTH_SESSION
+    local AUTH_SESSION="$(awk '$6 == "guc_al" { print $7 }' $COOKIES)"
+    [ "$AUTH_SESSION" != "0" ] && break
+    unset AUTH_SESSION
  
-   POL_SetupWindow_question "$(eval_gettext 'Gog.com login failed, try again?')" "$TITLE"
-   if [ "$APP_ANSWER" = "FALSE" ]; then
-       POL_SetupWindow_Close
-       exit
-   fi
+    POL_SetupWindow_question "$(eval_gettext 'Gog.com login failed, try again?')" "$TITLE"
+    if [ "$APP_ANSWER" = "FALSE" ]; then
+        POL_SetupWindow_Close
+        exit
+    fi
 done
  
 # Download
@@ -77,56 +83,61 @@
  
 download_piece ()
 {
-   # 1: URL
-   # 2: filename
-   # 3: MD5 hash
-   # 4: Title
-
-   # Failed piece from previous download, maybe reference MD5 was corrected?
-   local FAILEDPIECE="$2.failed"
-   if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
-       POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
-       if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
-           mv "$FAILEDPIECE" "$2"
-       fi
-   fi
-
-   [ -e "$2" ] && return
-
-   local TMPPIECE="$2.part"
-   while true; do
-       POL_System_wget "$1" "$4" --no-check-certificate --load-cookies="$COOKIES" --continue -O "$TMPPIECE"
-
-       POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
-       if [ ! -e "$TMPPIECE" ]; then
-           GOGDMSG="$(eval_gettext 'Download failed')"
-       elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
-           GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
-           mv "$TMPPIECE" "$FAILEDPIECE"
-       else
-           # Success
-           mv "$TMPPIECE" "$2"
-           [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
-           break
-       fi
-
-       POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
-       [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
-   done
+    # 1: URL
+    # 2: filename
+    # 3: MD5 hash
+    # 4: Title
+
+    # Failed piece from previous download, maybe reference MD5 was corrected?
+    local FAILEDPIECE="$2.failed"
+    if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
+        POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
+        if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
+            mv "$FAILEDPIECE" "$2"
+        fi
+    fi
+
+    [ -e "$2" ] && return
+
+    local TMPPIECE="$2.part"
+    while true; do
+        POL_System_wget "$1" "$4" --no-check-certificate --load-cookies="$COOKIES" --continue -O "$TMPPIECE"
+
+        POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
+        if [ ! -e "$TMPPIECE" ]; then
+            GOGDMSG="$(eval_gettext 'Download failed')"
+        elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
+            GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
+            mv "$TMPPIECE" "$FAILEDPIECE"
+        else
+            # Success
+            mv "$TMPPIECE" "$2"
+            [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
+            break
+        fi
+
+        POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
+        [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
+    done
 }
  
 download_piece "$BASEURL/$GAME/${INDEXPREFIX}$INDEX" "$BASENAME.exe" "$1" "$BASENAME (1/$PIECES)"
  
-if [ $PIECES -gt 1 ]; then
-   local n=2
-   while [ $n -le $PIECES ]; do
-       download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
-       let n=$((n+1))
-   done
+if [ $# -gt 1 ]; then
+    local n=2
+    local offset=0
+    while [ $n -le $# ]; do
+        if [ "${!n}" != "" ]; then
+            download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1-offset)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
+        else
+            let offset=$((offset+1))
+        fi
+        let n=$((n+1))
+    done
 fi
  
 # Close session
 rm -f "$COOKIES"
  
 POL_GoG_downloaded="True"
-POL_GoG_location="$PWD/$BASENAME.exe"
+POL_GoG_location="$PWD/$BASENAME.exe"
\ No newline at end of file

New source code

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#!/bin/bash
 
local GAME="$1"
# option: --altername 'basename' baseindex: get pieces starting from another index than 0
# options: --patch: patches | --bonus: bonus contents
# 2.. MD5: hash of the pieces
# Will download as many pieces as extra parameters
# An empty parameter will skip trying to download that place file
# Hashes are recommended for large downloads anyway
shift
 
local BASENAME="setup_$GAME"
local INDEX=0
if [ "$1" = "--alternate" ]; then
    BASENAME="$2"
    INDEX="$3"
    shift 3
fi
 
# URL = ${BASEURL}/${GAME}/${INDEXPREFIX}${INDEX}
local BASEURL="https://secure.gog.com/downlink"
local INDEXPREFIX="en1installer"
if [ "$1" = "--patch" ]; then
    INDEXPREFIX="en1patch"
    shift
elif [ "$1" = "--bonus" ]; then
    BASEURL="https://secure.gog.com/downlink/file"
    INDEXPREFIX=""
    shift
fi
 
local PIECES=0
for arg in "$@"; do
    if [ "${arg}" != "" ]; then
        PIECES=$((${PIECES}+1))
    fi
done
 
local GOG_REPO="$(POL_Config_Read GOG_REPO)"
 
if [ -z "$GOG_REPO" ]; then
    POL_SetupWindow_textbox "$(eval_gettext 'In what directory do you want to download GOG files?')" "$TITLE" "$POL_USER_ROOT/tmp/"
    GOG_REPO="$APP_ANSWER"
    POL_Config_Write GOG_REPO "$GOG_REPO"
fi
 
 
# Login / open session
local COOKIES="$POL_USER_ROOT/tmp/gog_cookies"
local COOKIES_2="$POL_USER_ROOT/tmp/gog_cookies2"
while true; do
    POL_SetupWindow_login "$(eval_gettext 'Please enter your gog.com login to download $BASENAME')" "$TITLE" "http://www.gog.com/"
 
    POL_SetupWindow_wait "$(eval_gettext 'Please wait...')" "$TITLE"
 
    rm "$COOKIES" 2> /dev/null
    rm "$COOKIES_2" 2> /dev/null
    gutm="$($POL_WGET http://www.gog.com/ -O- --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" | sed -n 's/^.*id="gutm" value="\([^"]*\)".*$/\1/p')"
    gutm="$(POL_Website_urlencode "$gutm")"
 
    buk="$($POL_WGET "http://www.gog.com/user/ajax" -O- --post-data="a=get&c=gamecard&p1=false&p2=false&auth=&gutm=$gutm" --save-cookies=$COOKIES_2 --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0" |sed -n 's/^.*"buk":"\([^"]*\)".*/\1/p')"
    buk="$(POL_Website_urlencode "$buk")"
 
    $POL_WGET https://secure.gog.com/login --save-cookies=$COOKIES --load-cookies=$COOKIES_2 --post-data="log_email=$(POL_Website_urlencode "$POL_LOGIN")&log_password=$(POL_Website_urlencode "$POL_PASSWORD")&redirectOk=/&unlockSettings=0&btn_login=Log me in&buk=$buk" --no-check-certificate -O- --header="DNT: 1" --user-agent="Mozilla/5.0 (Windows NT 6.1; U;WOW64; de;rv:11.0) Gecko Firefox/11.0"
 
    unset POL_LOGIN POL_PASSWORD
 
    local AUTH_SESSION="$(awk '$6 == "guc_al" { print $7 }' $COOKIES)"
    [ "$AUTH_SESSION" != "0" ] && break
    unset AUTH_SESSION
 
    POL_SetupWindow_question "$(eval_gettext 'Gog.com login failed, try again?')" "$TITLE"
    if [ "$APP_ANSWER" = "FALSE" ]; then
        POL_SetupWindow_Close
        exit
    fi
done
 
# Download
[ -d "$GOG_REPO" ] || mkdir -p "$GOG_REPO"
cd "$GOG_REPO" || cd "$POL_USER_ROOT/tmp/"
POL_Debug_Message "Will download into $PWD"
 
download_piece ()
{
    # 1: URL
    # 2: filename
    # 3: MD5 hash
    # 4: Title
 
    # Failed piece from previous download, maybe reference MD5 was corrected?
    local FAILEDPIECE="$2.failed"
    if [ -n "$3" -a ! -e "$2" -a -e "$FAILEDPIECE" ]; then
        POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
        if [ "$(POL_MD5_file $FAILEDPIECE)" = "$3" ]; then
            mv "$FAILEDPIECE" "$2"
        fi
    fi
 
    [ -e "$2" ] && return
 
    local TMPPIECE="$2.part"
    while true; do
        POL_System_wget "$1" "$4" --no-check-certificate --load-cookies="$COOKIES" --continue -O "$TMPPIECE"
 
        POL_SetupWindow_wait "$(eval_gettext 'Checking piece integrity...')" "$4"
        if [ ! -e "$TMPPIECE" ]; then
            GOGDMSG="$(eval_gettext 'Download failed')"
        elif [ -n "$3" ] && [ "$(POL_MD5_file $TMPPIECE)" != "$3" ]; then
            GOGDMSG="$(eval_gettext 'Download seems to be corrupted')\n$(eval_gettext 'The file could also have been updated. If the problem persists, consider reporting the issue so that the script can be adjusted.')"
            mv "$TMPPIECE" "$FAILEDPIECE"
        else
            # Success
            mv "$TMPPIECE" "$2"
            [ -e "$FAILEDPIECE" ] && rm "$FAILEDPIECE"
            break
        fi
 
        POL_SetupWindow_question "$GOGDMSG\n$(eval_gettext 'Retry?')" "$TITLE"
        [ "$APP_ANSWER" = "TRUE" ] || POL_Debug_Fatal "$GOGDMSG"
    done
}
 
download_piece "$BASEURL/$GAME/${INDEXPREFIX}$INDEX" "$BASENAME.exe" "$1" "$BASENAME (1/$PIECES)"
 
if [ $# -gt 1 ]; then
    local n=2
    local offset=0
    while [ $n -le $# ]; do
        if [ "${!n}" != "" ]; then
            download_piece "$BASEURL/$GAME/${INDEXPREFIX}$((INDEX+n-1))" "$BASENAME-$((n-1-offset)).bin" "${!n}" "$BASENAME ($n/$PIECES)"
        else
            let offset=$((offset+1))
        fi
        let n=$((n+1))
    done
fi
 
# Close session
rm -f "$COOKIES"
 
POL_GoG_downloaded="True"
POL_GoG_location="$PWD/$BASENAME.exe"

Replies

petch

Tuesday 5 August 2014 at 12:31

Empty md5s already had a semantic: download but do not check the part hash (as documented). Maybe some other value should be used ("skip"?)
Also my feeling is that while this change provides a solution for the problem at hand, it does not provide a solution for other known deficiencies of those gog support scripts: ability to download a game, maybe for a specific language, maybe also download a patch, or extras (say the manual, if they didn't include it in the main installer),...
That would require a much more expressive interface, or be able to fetch meta-informations about downloadables, like lgogdownloader does...

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