pldnotify.awk

   1 #!/bin/awk -f
   2 # $Revision$, $Date$
   3
   4 function compare_ver(v1,v2) {
   5 # compares version numbers
   6         while (match(v1,/[a-zA-Z][0-9]|[0-9][a-zA-Z]/))
   7                 v1=(substr(v1,1,RSTART) "." substr(v1,RSTART+RLENGTH-1))
   8         while (match(v2,/[a-zA-Z][0-9]|[0-9][a-zA-Z]/))
   9                 v2=(substr(v2,1,RSTART) "." substr(v2,RSTART+RLENGTH-1))
  10         sub("^0*","",v1)
  11         sub("^0*","",v2)
  12         if (DEBUG) print "v1 == " v1
  13         if (DEBUG) print "v2 == " v2
  14         count=split(v1,v1a,"\.")
  15         count2=split(v2,v2a,"\.")
  16
  17         if (count<count2) mincount=count
  18         else mincount=count2
  19
  20         for (i=1; i<=mincount; i++) {
  21                 if (v1a[i]=="") v1a[i]=0
  22                 if (v2a[i]=="") v2a[i]=0
  23                 if (DEBUG) print "i == " i
  24                 if (DEBUG) print "v1[i] == " v1a[i]
  25                 if (DEBUG) print "v2[i] == " v2a[i]
  26                 if ((v1a[i]~/[0-9]/)&&(v2a[i]~/[0-9]/)) {
  27                         if (length(v2a[i])>length(v1a[i]))
  28                                 return 1
  29                         else if (v2a[i]>v1a[i])
  30                                 return 1
  31                         else if (length(v1a[i])>length(v2a[i]))
  32                                 return 0
  33                         else if (v1a[i]>v2a[i])
  34                                 return 0
  35                 } else if ((v1a[i]~/[A-Za-z]/)&&(v2a[i]~/[A-Za-z]/)) {
  36                         if (v2a[i]>v1a[i])
  37                                 return 1
  38                         else if (v1a[i]>v2a[i])
  39                                 return 0
  40                 } else if ((v1a[i]~"pre")||(v1a[i]~"beta")||(v1a[i]~"^b$"))
  41                         return 1
  42                 else
  43                         return 0
  44         }
  45         if ((count2==mincount)&&(count!=count2)) {
  46                 for (i=count2+1; i<=count; i++)
  47                         if ((v1a[i]~"pre")||(v1a[i]~"beta")||(v1a[i]~"^b$"))
  48                                 return 1
  49                 return 0
  50         } else if (count!=count2) {
  51                 for (i=count+1; i<=count2; i++)
  52                         if ((v2a[i]~"pre")||(v2a[i]~"beta")||(v2a[i]~"^b$"))
  53                                 return 0
  54                 return 1
  55         }
  56         return 0
  57 }
  58
  59 function get_http_links(host,dir,port,  errno,link,oneline,retval,odp,tmpfile) {
  60 # get all <A HREF=..> tags from specified URL
  61         "mktemp /tmp/XXXXXX" | getline tmpfile
  62         close("mktemp /tmp/XXXXXX")
  63         errno=system("echo -e \"GET " dir " HTTP/1.0\\n\" | nc " host " " port " | tr -d '\\r' > " tmpfile )
  64
  65         if (errno==0) {
  66                 getline oneline < tmpfile
  67                 if ( oneline ~ "200" ) {
  68                         while (getline oneline < tmpfile)
  69                                 odp=(odp " " oneline)
  70                         if ( DEBUG ) print "Odpowiedz: " odp
  71                 } else {
  72                         match(oneline,"[0-9][0-9][0-9]")
  73                         errno=substr(oneline,RSTART,RLENGTH)
  74                 }
  75         }
  76
  77         close(tmpfile)
  78
  79         if ( errno==0) {
  80                 while (tolower(odp) ~ /href=/) {
  81                         match(tolower(odp),/href="[^"]+"/)
  82                         link=substr(odp,RSTART,RLENGTH)
  83                         odp=substr(odp,RSTART+RLENGTH)
  84                         link=substr(link,7,length(link)-7)
  85                         retval=(retval " " link)
  86                 }
  87         } else {
  88                 retval=("HTTP ERROR: " errno)
  89         }
  90
  91         system("rm -f " tmpfile)
  92
  93         if (DEBUG) print "Zwracane: " retval
  94         return retval
  95 }
  96
  97 function get_ftp_links(host,dir,port,   tmpfile,link,retval) {
  98         "mktemp /tmp/XXXXXX" | getline tmpfile
  99         close("mktemp /tmp/XXXXXX")
 100
 101         errno=system("export PLIKTMP=\"" tmpfile "\" FTP_DIR=\"" dir "\" FTP_PASS=\"sebek@sith\" FTP_USERNAME=\"anonymous\" FTP_HOST=\"" host "\" DEBUG=\"" DEBUG "\" ; nc -e \"./ftplinks.sh\" " host " " port)
 102
 103         if (errno==0) {
 104                 while (getline link < tmpfile)
 105                         retval=(retval " " link)
 106                 close(tmpfile)
 107         } else {
 108                 retval=("FTP ERROR: " errno)
 109         }
 110
 111         system("rm -f " tmpfile)
 112
 113         if (DEBUG) print "Zwracane: " retval
 114         return retval
 115 }
 116
 117 function subst_defines(var,defs) {
 118 # substitute all possible RPM macros
 119         while ((var ~ /%{.*}/) || (var ~ /%[A-Za-z0-9_]+/)) {
 120                 oldvar=var
 121                 for (j in defs) {
 122                         gsub("%{" j "}", defs[j], var)
 123                         gsub("%" j , defs[j], var)
 124                 }
 125                 if (var==oldvar) {
 126                         if ( DEBUG ) for (i in defs) print i " == " defs[i]
 127                         return var
 128                 }
 129         }
 130         return var
 131 }
 132
 133 function process_source(number,lurl,name,version) {
 134 # fetches file list, and compares version numbers
 135         if ( DEBUG ) print "Przetwarzam " lurl
 136
 137         if ( index(lurl,version)==0 ) {
 138                 if (DEBUG) print "Nie ma numeru wersji."
 139                 return 0
 140         }
 141
 142         sub("://",":",lurl)
 143         sub("/",":/",lurl)
 144         gsub("[^/]*$",":&",lurl)
 145         split(lurl,url,":")
 146         acc=url[1]
 147         host=url[2]
 148         dir=url[3]
 149         filename=url[4]
 150
 151         if (index(dir,version)) {
 152                 dir=substr(dir,1,index(dir,version)-1)
 153                 sub("[^/]*$","",dir)
 154                 sub("(\.tar\.(bz|bz2|gz)|zip)$","",filename)
 155                 if ( DEBUG ) print "Sprawdze katalog: " dir
 156                 if ( DEBUG ) print "i plik: " filename
 157         }
 158
 159         filenameexp=filename
 160         gsub("\+","\\+",filenameexp)
 161         sub(version,"[A-Za-z0-9\\.]+",filenameexp)
 162         if ( DEBUG ) print "Wzorzec: " filenameexp
 163         match(filename,version)
 164         prever=substr(filename,1,RSTART-1)
 165         postver=substr(filename,RSTART+RLENGTH)
 166         if ( DEBUG ) print "Przed numerkiem: " prever
 167         if ( DEBUG ) print "i po: " postver
 168
 169         if ( DEBUG ) print "Zagl±dam na " acc "://" host dir
 170
 171         references=0
 172         finished=0
 173         oldversion=version
 174         if (acc=="http")
 175                 odp=get_http_links(host,dir,80)
 176         else {
 177                 odp=get_ftp_links(host,dir,21)
 178         }
 179         if( odp ~ "ERROR: ") {
 180                 print name "(" number ") " odp
 181         } else {
 182                 c=split(odp,linki)
 183                 for (nr=1; nr<=c; nr++) {
 184                         addr=linki[nr]
 185                         if (DEBUG) print "Znaleziony link: " addr
 186                         if (addr ~ filenameexp) {
 187                                 match(addr,filenameexp)
 188                                 newfilename=substr(addr,RSTART,RLENGTH)
 189                                 if (DEBUG) print "Hipotetyczny nowy: " newfilename
 190                                 sub(prever,"",newfilename)
 191                                 sub(postver,"",newfilename)
 192                                 if (DEBUG) print "Wersja: " newfilename
 193                                 if ( compare_ver(version, newfilename)==1 ) {
 194                                         if (DEBUG) print "Tak, jest nowa"
 195                                         version=newfilename
 196                                         finished=1
 197                                 }
 198                         }
 199                 }
 200                 if (finished==0)
 201                         print name "(" number ") seems ok"
 202                 else
 203                         print name "(" number ") [OLD] " oldversion " [NEW] " version
 204         }
 205 }
 206
 207 function process_data(name,ver,rel,src) {
 208 # this function checks if substitutions were valid, and if true:
 209 # processes each URL and tries to get current file list
 210         for (i in src) {
 211                 if ( src[i] !~ /%{.*}/ && src[i] !~ /%[A-Za-z0-9_]/ )  {
 212                         if ( DEBUG ) print "Zrodlo: " src[i]
 213                         process_source(i,src[i],name,ver)
 214                 } else {
 215                         print FNAME ":" i ": niemozliwe podstawienie: " src[i]
 216                 }
 217         }
 218 }
 219
 220 BEGIN {
 221         # if U want to use DEBUG, run script with "-v DEBUG=1"
 222         # or uncomment the line below
 223         # DEBUG = 1
 224 }
 225
 226 FNR==1 {
 227         if ( ARGIND != 1 ) {
 228                 process_data(NAME,VER,REL,SRC)
 229                 NAME="" ; VER="" ; REL=""
 230                 for (i in DEFS) delete DEFS[i]
 231                 for (i in SRC) delete SRC[i]
 232         }
 233         FNAME=FILENAME
 234 }
 235
 236 /^[Uu][Rr][Ll]:/&&(URL=="") { URL=subst_defines($2,DEFS) ; DEFS["url"]=URL }
 237 /^[Nn]ame:/&&(NAME=="") { NAME=subst_defines($2,DEFS) ; DEFS["name"]=NAME }
 238 /^[Vv]ersion:/&&(VER=="") { VER=subst_defines($2,DEFS) ; DEFS["version"]=VER }
 239 /^[Rr]elease:/&&(REL=="") { REL=subst_defines($2,DEFS) ; DEFS["release"]=REL }
 240 /^[Ss]ource[0-9]*:/ { if (/(ftp|http):\/\//) SRC[FNR]=subst_defines($2,DEFS) }
 241 /%define/ { DEFS[$2]=subst_defines($3,DEFS) }
 242
 243 END {
 244         process_data(NAME,VER,REL,SRC)
 245 }