Difference between revisions of "Webspiding"

Revision as of 18:28, 28 March 2008

Converted with HTML::WikiConverter::MediaWiki from my old phpwiki site

Cartes satellite Ikonos

Status: Les coordonnées des 4 cartes de Liège ont été découvertes mais pas encore celles de Bruxelles

#!/bin/bash
###########################################################################
# Purpose of this script is to fetch parts of a map and reconstruct it
# It's suited to fecth maps available at www.geo.ulg.ac.be/edusat/en/ikonos
#
# Version 0.3 (08/12/2002) Copyright Doegox &lt;philippe.teuwen@ael.be&gt;
# This script is released under the GNU/General Public License
#
# History:
# * Version 0.3:
#   XY Coord computation made easier, no more need for bc
#   Support for additional maps: all Liege Ikonos are now supported
# * Version 0.2:
#   Fix parametrization of total nr of images
#   Fetch more robust: retry if download failed
###########################################################################
# Here are the parameters to adapt:
###########################################################################
# imagename=
## Give just a prefix for the saved images
# savedname=
## Size of the whole image to recover, quite hard to guess I agree...
# xbig=
# ybig=
## Size of the returned snapshots
xsnap=500
ysnap=500
###########################################################################
########## IKONOS Liege fusion
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cliege-ikonos-fusion.bmp"
# savedname="lg-fusion"
# xbig=18497
# ybig=11066
########## IKONOS Liege panchromatique
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cliege-ikonos-pan.bmp"
# savedname="lg-pan"
# xbig=11024
# ybig=11008
########## IKONOS Liege multispectral
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cliege-ikonos-rgb.bmp"
# savedname="lg-rgb"
# xbig=2756
# ybig=2752
########## IKONOS Liege infrared
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cliege-ikonos-nir.bmp"
# savedname="lg-nir"
# xbig=2756
# ybig=2752
########## IKONOS Bruxelles fusion
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cbruxelles-ikonos-fusion.bmp"
# savedname="bxl-fusion"
# xbig=
# ybig=
########## IKONOS Bruxelles panchromatique
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cbruxelles-ikonos-pan.bmp"
# savedname="bxl-pan"
# xbig=
# ybig=
########## IKONOS Bruxelles multispectral
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cbruxelles-ikonos-rgb.bmp"
# savedname="bxl-rgb"
# xbig=
# ybig=
########## IKONOS Bruxelles infrared
# imagename="d%3A%5CEdusat-Images%5Cikonos%5Cbruxelles-ikonos-nir.bmp"
# savedname="bxl-nir"
# xbig=
# ybig=
###########################################################################
###########################################################################
imax=$((xbig/xsnap+1))
jmax=$((ybig/ysnap+1))
for ((i=0;i&lt;$imax;i++)); do
  x=$(($i*$xsnap+$xsnap/2));
  for ((j=0;j&lt;$jmax;j++)); do
    y=$(($j*$ysnap+$ysnap/2));
    echo Getting bitmap $(($j+$i*$jmax+1))/$(($imax*$jmax)) @ x=$x y=$y
    until wget --tries=inf --quiet "http://www.geo.ulg.ac.be/edusat/en/ikonos/cgi-bin/extr500.pl?nom=$imagename&amp;quicklook-x-size=$xbig&amp;quicklook-y-size=$ybig&amp;image.x=$x&amp;image.y=$y" --output-document=$savedname-$i-$j.bmp
    do
      sleep 1;
      echo "Retry...";
    done
    echo -n "Converting to PNM... "
    anytopnm $savedname-$i-$j.bmp &gt; $savedname-$i-$j.pnm
    rm $savedname-$i-$j.bmp
    if [ $j != 0 ];
    then
      if [ $j != $(($jmax-1)) ];
      then
        echo "Merge 2 images in columns... "
        pnmcat -topbottom $savedname-$i-$(($j-1))-merged.pnm $savedname-$i-$j.pnm &gt; $savedname-$i-$j-merged.pnm
        rm $savedname-$i-$(($j-1))-merged.pnm $savedname-$i-$j.pnm
      else
        echo "Cut last image of the column, there is some overlapping here... "
        pnmcut -top $((-($ybig-$ybig/$ysnap*$ysnap))) $savedname-$i-$j.pnm &gt; $savedname-$i-$j-cut.pnm
        rm $savedname-$i-$j.pnm
        echo "Finish merging this column... "
        pnmcat -topbottom $savedname-$i-$(($j-1))-merged.pnm $savedname-$i-$j-cut.pnm &gt; $savedname-$i-$j-merged.pnm
        rm $savedname-$i-$(($j-1))-merged.pnm $savedname-$i-$j-cut.pnm
      fi
    else
      mv $savedname-$i-$j.pnm $savedname-$i-$j-merged.pnm
    fi
  done
  mv $savedname-$i-$(($jmax-1))-merged.pnm $savedname-$i.pnm
  if [ $i != 0 ];
  then
    if [ $i != $(($imax-1)) ];
    then
      echo "Merge 2 columns... "
      pnmcat -leftright $savedname-$(($i-1))-merged.pnm $savedname-$i.pnm &gt; $savedname-$i-merged.pnm
      rm $savedname-$(($i-1))-merged.pnm $savedname-$i.pnm
    else
      echo "Cut last column, there is some overlapping here... "
      pnmcut -left $((-($xbig-$xbig/$xsnap*$xsnap))) $savedname-$i.pnm &gt; $savedname-$i-cut.pnm
      rm $savedname-$i.pnm
      echo "Finish merging whole picture... "
      pnmcat -leftright $savedname-$(($i-1))-merged.pnm $savedname-$i-cut.pnm &gt; $savedname-$i-merged.pnm
      rm $savedname-$(($i-1))-merged.pnm $savedname-$i-cut.pnm
    fi
  else
    mv $savedname-$i.pnm $savedname-$i-merged.pnm
  fi
done
mv $savedname-$(($imax-1))-merged.pnm $savedname-merged.pnm
echo Done!
#pnmtopng $savedname-merged.pnm &gt; $savedname-merged.png</nowiki>

Autres cartes satellites

Pour des raisons de copyright, ce script ne contient aucune référence à un site provider de cartes satellites, il est ici à titre purement éducatif et son éventuelle modification en vue d'une utilisation illicite au regard des licenses sur les cartes est sous votre entière responsabilité.
Partisans des logiciels libres, bienvenue au XXIème siècle!

#!/bin/bash
# Version 0.12 (06/08/2005) Copyright {SHA}Pqzqg/tBLZdMRSC88PlRCZD4kLA=
#TODO
## detect non zoomable areas (if size=2085 and png instead of jpeg)
# for hybrid, this is already ok: break hybrid if not available
## Use long:lat
## check nr tiles possible+wrap

###############################################################
# This should not be changed:
# Zoom is currently between 0 (max) and 17 (whole world in one tile)
ZOOMLIMIT=17
# Scale between YYY and Xxxxxx data: (experimental)
SCALE_YYY=1.046613
###############################################################

# PARAMETERS

# PREFIX:
# Simply the prefix to append to temporary and final files

# UPPERLEFT:
# This script accepts UPPERLEFT input in qrst string format (as kh.xxxxxx.com)
# or in H:V:Z format (as mt.xxxxxx.com)
# To find qrst or H:V:Z coordinates, go to maps.xxxxxx.com, satellite view,
# navigates to the desired upper-left corner, page info-&gt;media-&gt;check images

# NR_H_TILES and NR_V_TILES:
# Indicate the nr of horizontal and vertical cells to retrieve

# PROJ=[2-3]
# Projection can be Mercator projection =&gt; PROJ=3
# cf http://en.wikipedia.org/wiki/Mercator_projection
# or Plate carree (equidistant cylindral projection) =&gt; PROJ=2
# cf http://en.wikipedia.org/wiki/Plate_carr%C3%A9e_projection
# When making hybrid maps, be sure to use PROJ=3!
# Default:
#       PROJ=3

# SAT_SOURCE=[XXXXXX|YYY]:
# Select source of satellite views
# Remark: YYY satellite views are already with metadata
# and the script takes directly UPPERLEFT as YYY coordinates
# so providing SAT_SOURCE=YYY + some HYBRID_* will go wrong!
# Anyway who wants their poor outdated satellite views??
# Default:
#       SAT_SOURCE=XXXXXX

# HYBRID_XXXXXX=[false|true]
# HYBRID_YYY=[false|true]
# Combines satellite view with vectorized data
# Can be data from Xxxxxx or from YYY
# YYY metadata are not transparent and not aligned with Xxxxxx data
# but who cares? the script make them transparent and aligned :-)
# This is particularly interesting for non-US locations where
# Xxxxxx metadata is very poor.
# Default:
#       HYBRID_XXXXXX=false
#       HYBRID_YYY=false

# HYBRID_YYY_CLEAN=0x[0-F]
# Bits indicate which elements to remove:
# 1: Remove land
# 2: Remove sea
# 3: Remove sea coast
# 4: Remove inner frontiers
# Best combinations are probably 0x3, 0x7 and 0xF
# Default:
#       HYBRID_YYY_CLEAN=0xF

# HYBRID_YYY_WHEN=[BEFORE_HYBRID_XXXXXX|AFTER_HYBRID_XXXXXX]
# If both metadata, in which order to apply them?
# Default:
#       HYBRID_YYY_WHEN=AFTER_HYBRID_XXXXXX

# For ease of use, the script can be called for direct conversions as such:
# gmaps &lt;qrst string&gt;
# gmaps &lt;horizontal int&gt; &lt;vertical int&gt; &lt;zoom&gt;

PREFIX="/tmp/test"
UPPERLEFT=
NR_H_TILES=
NR_V_TILES=

# In case of interruption while downloading, the script should
# recover automatically.
# Even if interrupted and restarted later, it detects what is
# already done and continues from there.

#############################################################
# Examples

# World Mercator:
#ZOOM=15
#PREFIX="/tmp/world-mercator"
#UPPERLEFT=0:0:$ZOOM
#NR_H_TILES=$((2**($ZOOMLIMIT-$ZOOM)))
#NR_V_TILES=$((2**($ZOOMLIMIT-$ZOOM)))
#PROJ=3

# World Plate:
#ZOOM=15
#PREFIX="/tmp/world-plate"
#UPPERLEFT=0:$(((2**($ZOOMLIMIT-$ZOOM))/4)):$ZOOM
#NR_H_TILES=$((2**($ZOOMLIMIT-$ZOOM)))
#NR_V_TILES=$((2**($ZOOMLIMIT-$ZOOM-1)))
#PROJ=2

# Europe hybrid:
#PREFIX="/tmp/europe"
#UPPERLEFT=15:10:12
#NR_H_TILES=4
#NR_V_TILES=3
#HYBRID_XXXXXX=true

#PREFIX="/tmp/europe"
#UPPERLEFT=15:10:12
#NR_H_TILES=4
#NR_V_TILES=3
#SAT_SOURCE=XXXXXX
#HYBRID_YYY=true

# Romania hybrid:
#PREFIX="/tmp/romania"
#UPPERLEFT=142:88:9
#NR_H_TILES=8
#NR_V_TILES=6
#HYBRID_XXXXXX=true
#HYBRID_YYY=true

# Oradea:
#PREFIX="/tmp/oradea"
#UPPERLEFT=4594:2878:4
#NR_H_TILES=3
#NR_V_TILES=3

# Belgium hybrid:
#PREFIX="/tmp/belgium"
#UPPERLEFT=259:170:8
#NR_H_TILES=7
#NR_V_TILES=5
#HYBRID_XXXXXX=true
#HYBRID_YYY=true

# Liege available in max resol: !! huge file
#PREFIX="/tmp/liege"
#UPPERLEFT=trtqtqtsrrrqrtstrr
#UPPERLEFT=67499:44060:0
#NR_H_TILES=89
#NR_V_TILES=93

# Manhattan hybrid: this was only to tune the SCALE_YYY parameter
#PREFIX="/tmp/manhattan"
#UPPERLEFT=tqstqrqrrqrsqtstqq
#NR_H_TILES=2
#NR_V_TILES=2
#HYBRID_XXXXXX=true
#HYBRID_YYY=true
#HYBRID_YYY_WHEN=BEFORE_HYBRID_XXXXXX

# Canberra
PREFIX="/tmp/canberra"
UPPERLEFT=tsrrtsqsqttqt
NR_H_TILES=2
NR_V_TILES=2

#########################################################################
### HELPER FUNCTIONS
# takes a qrst string and returns h, v and z into variables $h, $v and $z
# h and v are between 0 and 2^(ZOOMLIMIT-z)
# Example: qrst2hvz tqstqrrqstsrtsqsqr;echo $h $v $z
function qrst2hvz {
    qrst=$1
    h=0
    v=0
    z=$ZOOMLIMIT
    # First must be always a "t"
    if [ "${qrst:0:1}" != "t" ];
    then
        echo "Error! QRST string does not start by \"t\": \"$1\""
        exit
    fi
    qrst=${qrst:1}
    if [ ${#qrst} -gt $ZOOMLIMIT ];
    then
        echo "Error! QRST string too long: \"$1\" (max is $(($ZOOMLIMIT+1)))"
        exit
    fi
    while [ ${#qrst} -ne 0 ];
    do
        h=$((h*2))
        v=$((v*2))
        z=$((z-1))
        case ${qrst:0:1} in
            q)
            ;;
            r)
                h=$((h+1))
            ;;
            s)
                h=$((h+1))
                v=$((v+1))
            ;;
            t)
                v=$((v+1))
            ;;
            *)
                echo "Error! QRST string malformed: \"$1\" contains \"${qrst:0:1}\""
                exit
            ;;
        esac
        qrst=${qrst:1}
    done
}

# takes a triplet of h v z values and returns a qrst string into variable $qrst
# Example: hvz2qrst 39637 50100 0;echo $qrst
function hvz2qrst {
    h=$1
    v=$2
    z=$3
    HVLIMIT=$((2**($ZOOMLIMIT-$z)))
    qrst=""
    if [ $h -gt $HVLIMIT ];
    then
        echo "Error! horizontal int wrong: $h (max is $HVLIMIT)"
        exit
    fi
    if [ $v -gt $HVLIMIT ];
    then
        echo "Error! vertical int wrong: $v (max is $HVLIMIT)"
        exit
    fi
    if [ $z -gt $ZOOMLIMIT ];
    then
        echo "Error! zoom level wrong: $z (max is $ZOOMLIMIT)"
        exit
    fi
    local i
    for ((i=0;i&lt;$ZOOMLIMIT-$z;i++));
    do
        case $((h%2)):$((v%2)) in
            0:0)
                qrst="q$qrst"
            ;;
            1:0)
                qrst="r$qrst"
            ;;
            1:1)
                qrst="s$qrst"
            ;;
            0:1)
                qrst="t$qrst"
            ;;
        esac
        h=$((h/2))
        v=$((v/2))
    done
    qrst="t$qrst"
}

# takes a r0123 YYY string and returns h, v and z into variables $h, $v and $z
# TODO actually no idea of the zoom limits for YYY...
# h and v are between 0 and 2^(ZOOMLIMIT-z)
# Example: yyy2hvz r01230123;echo $h $v $z
function yyy2hvz {
    yyy=$1
    h=0
    v=0
    z=$ZOOMLIMIT
    # First must be always a "r" or a "h"
    if [ "${yyy:0:1}" != "r" ] &amp;&amp; [ "${yyy:0:1}" != "h" ];
    then
        echo "Error! YYY string does not start by \"r\" neither \"h\": \"$1\""
        exit
    fi
    yyy=${yyy:1}
    if [ ${#yyy} -gt $ZOOMLIMIT ];
    then
        echo "Error! YYY string too long: \"$1\" (max is $(($ZOOMLIMIT+1)))"
        exit
    fi
    while [ ${#yyy} -ne 0 ];
    do
        h=$((h*2))
        v=$((v*2))
        z=$((z-1))
        case ${yyy:0:1} in
            0)
            ;;
            1)
                h=$((h+1))
            ;;
            2)
                v=$((v+1))
            ;;
            3)
                h=$((h+1))
                v=$((v+1))
            ;;
            *)
                echo "Error! YYY string malformed: \"$1\" contains \"${yyy:0:1}\""
                exit
            ;;
        esac
        yyy=${yyy:1}
    done
}

# takes a triplet of h v z values and returns a YYY string into variable $yyy
# Example: hvz2yyy 39637 50100 0;echo $yyy
function hvz2yyy {
    h=$1
    v=$2
    z=$3
    HVLIMIT=$((2**($ZOOMLIMIT-$z)))
    yyy=""
    if [ $h -gt $HVLIMIT ];
    then
        echo "Error! horizontal int wrong: $h (max is $HVLIMIT)"
        exit
    fi
    if [ $v -gt $HVLIMIT ];
    then
        echo "Error! vertical int wrong: $v (max is $HVLIMIT)"
        exit
    fi
    if [ $z -gt $ZOOMLIMIT ];
    then
        echo "Error! zoom level wrong: $z (max is $ZOOMLIMIT)"
        exit
    fi
    local i
    for ((i=0;i&lt;$ZOOMLIMIT-$z;i++));
    do
        yyy="$(((h%2)+((v%2)*2)))$yyy"
        h=$((h/2))
        v=$((v/2))
    done
    yyy="r$yyy"
}

#######################################################
### Some shortcuts to use the script to make conversions:
case ${#*} in
    1)
        string=$1
        case ${string:0:1} in
            t)
                echo "QRST to H:V:Z conversion:"
                qrst2hvz $1
                echo "$1=$h:$v:$z"
            ;;
            [rh])
                echo "YYY to H:V:Z conversion:"
                yyy2hvz $1
                echo "$1=$h:$v:$z"
            ;;
            *)
                echo "Error! string not understood! $1"
            ;;
        esac
        exit
    ;;
    3)
        echo "H:V:Z to QRST and YYY conversion:"
        hvz2qrst $1 $2 $3
        hvz2yyy $1 $2 $3
        echo "$1:$2:$3=$qrst=$yyy"
        exit
    ;;
esac
#######################################################

function yyy_merge {
    # Offsets between YYY and Xxxxxx data
    # YYY is smaller so we have to scale it a bit
    # but that means the YYY tiles become bigger than the 256px of the Xxxxxx tiles
    # Both are centered in the middle
    # So origin is at (2^(17-$my_z))/2
    # and uppercorner tile in origin axis becomes $my_hv-(2^(17-$my_z))/2
    # ...times 256 to get the uppercorner in pixels
    # Offset scaler is $SCALE_YYY-1
    # the last (...+0.5)/1 is just a trick to round the result
    echo "Getting YYY metadata... "
    xoff=$(echo "((($my_h-(2^($ZOOMLIMIT-$my_z-1)))*256*($SCALE_YYY-1))+0.5)/1"|bc)
    yoff=$(echo "((($my_v-(2^($ZOOMLIMIT-$my_z-1)))*256*($SCALE_YYY-1))+0.5)/1"|bc)
    my_x=$(echo "$my_h-($xoff/(256*$SCALE_YYY))"|bc)
    my_y=$(echo "$my_v-($yoff/(256*$SCALE_YYY))"|bc)
    if [ $xoff -gt 0 ];
    then
        my_x=$(($my_x-1))
    fi
    if [ $yoff -gt 0 ];
    then
        my_y=$(($my_y-1))
    fi
    NR_H_TILES=$(($NR_H_TILES+1))
    NR_V_TILES=$(($NR_V_TILES+1))
    NR_TILES=$(($NR_H_TILES*$NR_V_TILES))
    for ((j=0;j&lt;$NR_V_TILES;j++));
    do
        jj=$(($my_y+$j))
        for ((i=0;i&lt;$NR_H_TILES;i++));
        do
            ii=$(($my_x+$i))
            tile=$PREFIX-$ii-$jj-$my_z
            hvz2yyy $ii $jj $my_z
            request="http://tiles${yyy:${#yyy}-1}.virtualearth.yyy.com/tiles/r${yyy:1}.png?g=1"
            get_hybrid $tile-yyy.png YYY
            if [ "$HYBRID_YYY" != "true" ]; # shortcut to break if error 404
            then
                break
            fi
            pngtopnm $tile-yyy.png &gt; $tile-yyy-orig.pnm
            #rm $tile-yyy.png
        done
        if [ "$HYBRID_YYY" != "true" ]; # shortcut to break if error 404
        then
            break
        fi
        echo "Merge images in row..."
        pnmcat -leftright $(for ((ii=$my_x;ii&lt;$my_x+$NR_H_TILES;ii++)); do echo -n " $PREFIX-$ii-$jj-$my_z-yyy-orig.pnm";done) &gt; $PREFIX-$j-up_merge-yyy-orig.pnm
        rm -f $PREFIX-*-$jj-$my_z-yyy-orig.pnm
    done
    if [ "$HYBRID_YYY" != "true" ]; # shortcut to break if error 404
    then
        return
    fi
    echo "Merge rows... "
    pnmcat -topbottom $(for ((j=0;j&lt;$NR_V_TILES;j++)); do echo -n " $PREFIX-$j-up_merge-yyy-orig.pnm";done) &gt; $PREFIX-yyy-orig.pnm
    rm -f $PREFIX-*-up_merge-yyy-orig.pnm
    echo "Merging with YYY metadata... "
    # Colors to remove from the YYY map:
    HYBRID_YYY_CLEAN=${HYBRID_YYY_CLEAN:-0xF}
    clean_map=""
    # Land:
    if [ $(($HYBRID_YYY_CLEAN &amp; 0x1)) -ne 0 ];
    then
        clean_map=$clean_map"F6/F1/E6 "
    fi
    # Sea:
    if [ $(($HYBRID_YYY_CLEAN &amp; 0x2)) -ne 0 ];
    then
        clean_map=$clean_map"B3/C6/D4 "
    fi
    # Littoral:
    if [ $(($HYBRID_YYY_CLEAN &amp; 0x4)) -ne 0 ];
    then
        clean_map=$clean_map"C4/D4/DC B4/CC/D4 E3/E4/DD B3/C6/D5 DA/DC/DA F4/EC/E4 BC/CC/D3 EC/EC/E4 CC/DC/DC CC/D4/DC BC/CC/DC "
    fi
    # Frontiers:
    if [ $(($HYBRID_YYY_CLEAN &amp; 0x8)) -ne 0 ];
    then
        clean_map=$clean_map"FC/F3/9B F7/DD/A1 F4/EC/D4 F4/EC/DC F4/EC/CC F4/EC/C0 FA/E9/7E EC/D1/71 E0/B4/66 D6/A3/5D 8D/6E/4D 96/8C/5F 57/50/42 EF/DB/92 FC/EC/CC F2/EC/DF 51/42/36 F9/D0/89 "
    fi
    # Construct call to ppmchange:
    local tmp_ppmchange
    tmp_ppmchange=""
    local k
    for k in $clean_map;do
        tmp_ppmchange=$tmp_ppmchange"rgb:$k black "
    done
    ppmchange -remainder white $tmp_ppmchange $PREFIX-yyy-orig.pnm |\
        ppmtopgm|pgmtopbm|pbmclean|pbmtopgm 5 5  &gt; $PREFIX-yyy-mask.pgm
    #without smooth:        ppmtopgm  &gt; $PREFIX-yyy-mask.pgm
    pnmscale $SCALE_YYY $PREFIX-yyy-orig.pnm &gt; $PREFIX-yyy-orig-scaled.pnm
    pnmscale $SCALE_YYY $PREFIX-yyy-mask.pgm &gt; $PREFIX-yyy-mask-scaled.pgm
    yoff=$(echo "(($yoff-(256*$SCALE_YYY*($my_v-$my_y)))+0.5)/1"|bc)
    xoff=$(echo "(($xoff-(256*$SCALE_YYY*($my_h-$my_x)))+0.5)/1"|bc)
    pnmcomp -xoff=$xoff -yoff=$yoff -alpha=$PREFIX-yyy-mask-scaled.pgm $PREFIX-yyy-orig-scaled.pnm $PREFIX.pnm &gt; $PREFIX-tmp.pnm
    mv $PREFIX-tmp.pnm $PREFIX.pnm
    rm $PREFIX-yyy-orig.pnm $PREFIX-yyy-mask.pgm $PREFIX-yyy-orig-scaled.pnm $PREFIX-yyy-mask-scaled.pgm
}

function get_hybrid {
    file=$1
    if [ ! -s $file ];
    then
        echo "Getting mask   $(($i+$j*$NR_H_TILES+1))/$NR_TILES @ x=$ii y=$jj"
        until result=$(wget --tries=inf --no-verbose "$request" --output-document=$file 2&gt;&amp;1)
        do
            if echo $result|grep "403";then
                echo "!!!INTERRUPT: We apparently got ourselves blacklisted!!!"
                exit
            fi
            if echo $result|grep "404";then
                eval "HYBRID_$2=false"
                rm $file
                break
            fi
            sleep 1;
            echo "Retry...";
        done
    fi
}

case $UPPERLEFT in
# This is not an exhaustive check on the UPPERLEFT, just first char.
    [rh]*)
        yyy2hvz $UPPERLEFT
        hvz2qrst $h $v $z
        QRST_UPPERLEFT=$qrst
    ;;
    t*)
        QRST_UPPERLEFT=$UPPERLEFT
    ;;
    [0-9]*:[0-9]*:[0-9]*)
        hv=${UPPERLEFT%:*}
        hvz2qrst ${hv%:*} ${hv#*:} ${UPPERLEFT##*:}
        QRST_UPPERLEFT=$qrst
    ;;
    *)
        echo "Error! UPPERLEFT malformed: $UPPERLEFT"
        exit
    ;;
esac

qrst2hvz $QRST_UPPERLEFT
my_h=$h
my_v=$v
my_z=$z
NR_TILES=$(($NR_H_TILES*$NR_V_TILES))
# By default, no metadata
HYBRID_XXXXXX=${HYBRID_XXXXXX:-false}
HYBRID_YYY=${HYBRID_YYY:-false}
# Print some stats
echo "Get map h=$my_h-$(($my_h+$NR_H_TILES-1)) v=$my_v-$(($my_v+$NR_V_TILES-1)) z=$my_z"
echo "This will produce a $((256*$NR_H_TILES))x$((256*$NR_V_TILES)) pixels map"
if [ "$HYBRID_XXXXXX" != "false" ];then
    echo "Map will be hybrid i.e. merging of satellite and vector data from Xxxxxx"
fi
if [ "$HYBRID_YYY" != "false" ];then
    echo "Map will be hybrid i.e. merging of satellite and vector data from YYY"
fi
JPGSIZE=$((12500*$NR_TILES/1024))
if [ $JPGSIZE -gt 1024 ];then
    JPGSIZE="$(($JPGSIZE/1024)) Mb"
else
    JPGSIZE="$JPGSIZE kb"
fi
echo "Size of jpg file (~= size of the $NR_TILES tiles to download): around $JPGSIZE"
# Required diskspace: to stock twice the pnm version of the big map (when last merge occurs)
# + the final jpeg + the original jpeg bits if not deleted at each round
# TODO: this does not count yet space required for metadata HYBRID_*
echo "Required temporary diskspace: around $(((2*(196623+12500)*$NR_TILES/1024/1024)+1)) Mb"
if [ $NR_TILES -gt 500 ];
then
    echo "WARNING! Xxxxxx will probably blacklist you for a while"
    echo "because of the number of downloads ($NR_TILES)"
fi
echo "Are you sure to proceed? (y/n)"
read
[ "$REPLY" != "y" ] &amp;&amp; exit

### Recovery:
# If old half-merged files are found, try to use them
MERGE=0
if [ -s $PREFIX-*-up_merge.pnm ];
then
    MERGE=$(ls -1 $PREFIX-*-up_merge.pnm|tail -1)
    echo "Found $MERGE, try to recover from there..."
    MERGE=${MERGE##$PREFIX-}
    MERGE=${MERGE%%-up_merge.pnm}
    MERGE=$(($MERGE+1))
    if [ $MERGE -gt $(($NR_H_TILES)) ];
    then
        echo "$MERGE not in range of 1-$(($NR_H_TILES))! Discard..."
        MERGE=0
    fi
fi
###############################################################
# By default, satellite views from Xxxxxx and Mercator projection
SAT_SOURCE=${SAT_SOURCE:-XXXXXX}
PROJ=${PROJ:-3}
rm -f $PREFIX-*-*-$my_z.pnm
for ((j=0;j&lt;$NR_V_TILES;j++));
do
    # Recovering?
    if [ $MERGE -ne 0 ];
    then
        j=$MERGE
        MERGE=0
    fi
    jj=$(($my_v+$j))
    for ((i=0;i&lt;$NR_H_TILES;i++));
    do
        ii=$(($my_h+$i))
        tile=$PREFIX-$ii-$jj-$my_z
        # Build request depending on the source, Xxxxxx by default
        case "$SAT_SOURCE" in
            XXXXXX)
                hvz2qrst $ii $jj $my_z
                request="http://kh.xxxxxx.com/kh?v=$PROJ&amp;t=$qrst"
            ;;
            YYY)
                hvz2yyy $ii $jj $my_z
                request="http://tiles${yyy:${#yyy}-1}.virtualearth.yyy.com/tiles/h${yyy:1}.jpeg?g=1"
            ;;
        esac
        if [ ! -s $tile.jpg ];
        then
            echo "Getting bitmap $(($i+$j*$NR_H_TILES+1))/$NR_TILES @ x=$ii y=$jj"
            until result=$(wget --tries=inf --no-verbose "$request" --output-document=$tile.jpg 2&gt;&amp;1)
            do
                if echo $result|grep "403";then
                    echo "!!!INTERRUPT: We apparently got ourselves blacklisted!!!"
                    exit
                fi
                sleep 1;
                echo "Retry...";
            done
        fi
        echo -n "Converting to PNM... "
        jpegtopnm $tile.jpg &gt; $tile.pnm
        #rm $tile.jpg
        # Build request depending on the source of meta, none by default
        if [ "$HYBRID_XXXXXX" == "true" ];
        then
                hvz2qrst $ii $jj $my_z
                # for info, transparent is with v=w2t.1 and plain is with v=w2.5
                request="http://mt.xxxxxx.com/mt?v=w2t.1&amp;x=$ii&amp;y=$jj&amp;zoom=$my_z"
                get_hybrid $tile-xxxxxx.png XXXXXX
                if [ "$HYBRID_XXXXXX" == "true" ];
                then
                    pngtopnm $tile-xxxxxx.png &gt; $tile-xxxxxx-orig.pnm
                    pngtopnm -alpha $tile-xxxxxx.png &gt; $tile-xxxxxx-mask.pgm
                    #rm $tile-xxxxxx.png
                fi
        fi
    done
    echo "Merge images in row..."
    pnmcat -leftright $(for ((ii=$my_h;ii&lt;$my_h+$NR_H_TILES;ii++)); do echo -n " $PREFIX-$ii-$jj-$my_z.pnm";done) &gt; $PREFIX-$j-up_merge.pnm
    rm -f $PREFIX-*-$jj-$my_z.pnm
    if [ "$HYBRID_XXXXXX" == "true" ];
    then
        pnmcat -leftright $(for ((ii=$my_h;ii&lt;$my_h+$NR_H_TILES;ii++)); do echo -n " $PREFIX-$ii-$jj-$my_z-xxxxxx-orig.pnm";done) &gt; $PREFIX-$j-up_merge-xxxxxx-orig.pnm
        pnmcat -leftright $(for ((ii=$my_h;ii&lt;$my_h+$NR_H_TILES;ii++)); do echo -n " $PREFIX-$ii-$jj-$my_z-xxxxxx-mask.pgm";done) &gt; $PREFIX-$j-up_merge-xxxxxx-mask.pgm
        rm -f $PREFIX-*-$jj-$my_z-xxxxxx-orig.pnm $PREFIX-*-$jj-$my_z-xxxxxx-mask.pgm
    fi
done
echo "Merge rows... "
pnmcat -topbottom $(for ((j=0;j&lt;$NR_V_TILES;j++)); do echo -n " $PREFIX-$j-up_merge.pnm";done) &gt; $PREFIX.pnm
rm $PREFIX-*-up_merge.pnm
if [ "$HYBRID_XXXXXX" == "true" ];
then
    pnmcat -topbottom $(for ((j=0;j&lt;$NR_V_TILES;j++)); do echo -n " $PREFIX-$j-up_merge-xxxxxx-orig.pnm";done) &gt; $PREFIX-xxxxxx-orig.pnm
    pnmcat -topbottom $(for ((j=0;j&lt;$NR_V_TILES;j++)); do echo -n " $PREFIX-$j-up_merge-xxxxxx-mask.pgm";done) &gt; $PREFIX-xxxxxx-mask.pgm
    rm -f $PREFIX-*-up_merge-xxxxxx-orig.pnm $PREFIX-*-up_merge-xxxxxx-mask.pgm
fi

# Merging with metadata, by default if both Xxxxxx and YYY, Xxxxxx first:
HYBRID_YYY_WHEN=${HYBRID_YYY_WHEN:-AFTER_HYBRID_XXXXXX}
if [ "$HYBRID_YYY" == "true" ] &amp;&amp; [ "$HYBRID_YYY_WHEN" == "BEFORE_HYBRID_XXXXXX" ];
then
    yyy_merge
fi
if [ "$HYBRID_XXXXXX" == "true" ];
then
    echo "Merging with Xxxxxx metadata... "
    pnmcomp -alpha=$PREFIX-xxxxxx-mask.pgm $PREFIX-xxxxxx-orig.pnm $PREFIX.pnm &gt; $PREFIX-tmp.pnm
    mv $PREFIX-tmp.pnm $PREFIX.pnm
    rm $PREFIX-xxxxxx-orig.pnm $PREFIX-xxxxxx-mask.pgm
fi
if [ "$HYBRID_YYY" == "true" ] &amp;&amp; [ "$HYBRID_YYY_WHEN" == "AFTER_HYBRID_XXXXXX" ];
then
    yyy_merge
fi

#echo Converting to png format...
#pnmtopng $PREFIX.pnm &gt; $PREFIX.png
echo Converting to jpeg format...
pnmtojpeg $PREFIX.pnm &gt; $PREFIX.jpg
rm $PREFIX.pnm

echo Done! File is $PREFIX.jpg

Pages blanches

Annuaire inversé en ligne de commande:

#!/bin/bash
#Usage:
#&gt;pages 02 1234567

### Ancien site, hors service
#lynx -dump "http://www.belgacom.be/cgi-bin/whitePages?L=F&amp;TPL=IP2&amp;BYNUMBER=YES&amp;P1=$1&amp;P2=$2"|gawk '
#/Votre recherche/{exit}
#body==1
#/Résultats/{body=1}
#'

wget -O - -q --header="Cookie: language_cookie=fr;" \
"http://www.skynet.be/index.html?l1=search&amp;l2=whitepages&amp;l3=reverse\
&amp;prefixe=$1&amp;ntel=$2&amp;search=Rechercher"\
|gawk '\
  /Résultats de la recherche/ {\
     while ($0 !~ /&lt;td class=.content_text/) getline; \
     getline;\
     while ($0 !~ /&lt;!--/){\
      gsub(/^[[:space:]]*|&lt;\/?[a-z]*&gt;/,"");\
      print;\
      getline\
     }\
  }\
'

Volume mensuel consommé chez Skynet ADSL

#!/bin/bash
LOGIN=&lt;YOURLOGIN&gt;
PASSW=&lt;YOURPASSW&gt;
#Change CFID &amp; CFTOKEN to have a unique one
CFID=1234567
CFTOKEN=12345678

echo -n "fuseaction=CheckLoginConnection&amp;form_login=$LOGIN&amp;form_password=$PASSW&amp;Langue_Id=1&amp;Submit=Inloggen"\
|POST -t 2 -H "Cookie: CFID=$CFID; CFTOKEN=$CFTOKEN" -d\
 https://e-care.skynet.be/Login/index.cfm

wget -O /dev/null --quiet\
 --header="Cookie: CFID=$CFID; CFTOKEN=$CFTOKEN"\
 'https://e-care.skynet.be/Login/index.cfm?fuseaction=LoginConnection&amp;NextPage=../App/ConTime/index.cfm?fuseaction=VolumeMeter'

wget -O - --quiet\
 --header="Cookie: CFID=$CFID; CFTOKEN=$CFTOKEN"\
 'https://e-care.skynet.be/App/ConTime/index.cfm?fuseaction=VolumeMeter'\
|grep disponibles |sed 's/&lt;[^&lt;]*&gt;//g;s/^\t*//'

La sortie ressemblera à ceci:

Volume mensuel utilisé 3.75 Gb sur 10 Gb disponibles.

Dépendances:

libwww-perl
libcrypt-ssleay-perl
wget-ssl

pour debugger : livehttpheaders de firefox ;-)

Vérification automatique des Free Skype Days

Le but est de se logguer sur son compte Skypeout et de vérifier si ce jour est un Free Skype Day.
Ce script permet de se faire la main avec les lwp-request (GET, POST,...) disponibles dans le paquet libwww-perl.

#!/bin/bash

USER="&lt;my_user&gt;"
PASS="&lt;my_pass&gt;"
LOG="/var/log/skypeout.txt"

# Be sure to have write access to the log file:
touch $LOG||exit 1

# Login
# First: get a session_id
session_id=$(\
    echo -n "username=$USER&amp;password=$PASS&amp;login=Sign+me+in"|\
    POST -e -H 'Host: secure.skype.com' \
        'https://secure.skype.com/store/member/dologin.html'|\
    grep Set-Cookie|sed 's/.*\([a-f0-9]\{32\}\).*/\1/'\
)

# Then try again with this session_id
    echo -n "username=$USER&amp;password=$PASS&amp;login=Sign+me+in"|\
    POST    -H 'Host: secure.skype.com' \
            -H "Cookie: skype_store2=$session_id; username=$USER" \
        'https://secure.skype.com/store/member/dologin.html'

# Get overview
results=$(\
    GET     -H 'Host: secure.skype.com' \
            -H "Cookie: skype_store2=$session_id; username=$USER; loggedin=1" \
    'https://secure.skype.com/store/myaccount/overview.html'|grep "Free Skype Day" \
)

# Noe that we've collected the data, this part is up to you, depends what you want to do
date &gt;&gt; $LOG
echo $results &gt;&gt; $LOG
echo "--------------------------------" &gt;&gt;$LOG
subject=$(echo $results |gawk '{gsub(/&lt;[^&gt;]*&gt;/,"");gsub(/&amp;#[0-9]+;/,"");print;exit}')
echo $subject|grep -q "Today is not Free Skype Day"||echo $results|mail -s "$subject" &lt;myself&gt;

# Logout
    GET     -H 'Host: secure.skype.com' \
            -H "Cookie: skype_store2=$session_id; username=$USER; loggedin=1" \
    'https://secure.skype.com/store/member/logout.html' &gt;/dev/null 2&gt;&amp;1