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   1 #!/bin/sh
   2
   3 . "${_EXEC:-${0%/*}}/cgilite/cgilite.sh"
   4 . "${_EXEC:-${0%/*}}/cgilite/storage.sh"
   5 . "${_EXEC:-${0%/*}}/cgilite/json.sh"
   6
   7 [ "$_DATE" ] || _DATE="$(date +%s)"
   8
   9 debug "$REQUEST_METHOD  $REQUEST_URI    $SERVER_PROTOCOL        $_DATE"
  10
  11 ingest() {
  12   local J="$1"
  13
  14   # json_get "$J" title
  15   # json_get "$J" parts.comments
  16
  17   case $(json_get "$J" title) in
  18     *.md|*.txt|*.csv)
  19       printf %s "$content" |base64 -d
  20       ;;
  21     *.pdf)
  22       printf %s "$content" |base64 -d \
  23       | pdftotext - -
  24       ;;
  25     *.doc)
  26       printf %s "$content" |base64 -d \
  27       | catdoc /dev/stdin
  28       ;;
  29     *.xls)
  30       printf %s "$content" |base64 -d \
  31       | xls2csv /dev/stdin
  32       ;;
  33     *.ppt)
  34       printf %s "$content" |base64 -d \
  35       | catppt /dev/stdin
  36       ;;
  37     *.html|*.xml|*.svg)
  38       printf %s "$content" |base64 -d \
  39       | sed 's;<[^>]*>;;g'
  40       ;;
  41     *.docx)
  42       printf %s "$content" |base64 -d \
  43       | unzip -qc /dev/stdin word/document.xml \
  44       | head -c 128M | sed 's;<[^>]*>;;g'
  45       ;;
  46     *.xlsx)
  47       printf %s "$content" |base64 -d \
  48       | unzip -qc /dev/stdin xl/sharedStrings.xml \
  49       | head -c 128M | sed 's;<[^>]*>; ;g'
  50       ;;
  51     *.odt)
  52       printf %s "$content" |base64 -d \
  53       | unzip -qc /dev/stdin content.xml \
  54       | head -c 128M | sed 's;<[^>]*>;;g'
  55       ;;
  56     *.ods|*.odp)
  57       printf %s "$content" |base64 -d \
  58       | unzip -qc /dev/stdin content.xml \
  59       | head -c 128M | sed 's;<[^>]*>; ;g'
  60       ;;
  61     *):;;
  62   esac
  63 }
  64
  65 search() {
  66   local index="$1" words w num total freq doc date J
  67   shift 1; words="$@"
  68
  69   words="$(printf %s\\n "$words" | awk '
  70     BEGIN { # Field separator FS should include punctuation, including Unicode Block U+2000 - U+206F
  71             if ( length("¡") == 1 )  # Utf-8 aware AWK
  72             FS = "([] \\t\\n\\r!\"#'\''()*+,./:;<=>?\\\\^_`{|}~[-]|%[0-9A-Fa-f]{2}|'"$(printf '[\342\200\200-\342\201\257]')"')+";
  73             else                     # UTF-8 Hack
  74             FS = "([] \\t\\n\\r!\"#'\''()*+,./:;<=>?\\\\^_`{|}~[-]|%[0-9A-Fa-f]{2}|'"$(printf '\342\200[\200-\277]|\342\201[\201-\257]')"')+";
  75             fi
  76           }
  77       { for (n = 1; n <= NF; n++) printf "%s  ", tolower($n); }
  78   ')"
  79
  80   for w in ${words}; do
  81     [ ! -f "${index}/$w" ] && continue
  82
  83     while read num total freq doc date; do
  84       printf '%s-%i  %f\n' "${doc}" "${date}" "$freq"
  85     done <"${index}/$w"
  86   done \
  87   | awk '
  88         { cnt[$1]++; weight[$1] = weight[$1] ? weight[$1] + $2 : $2; }
  89     END { m = 0; for (d in cnt) m = ( m < cnt[d] ) ? cnt[d] : m;
  90           for (d in cnt) if ( cnt[d] == m ) printf "%f    %s\n", weight[d], d;
  91         }
  92   ' \
  93   | sort -nr \
  94   | while read freq doc; do
  95     date="${doc##*-}" doc="$(UNSTRING "${doc%-*}")"
  96
  97     if J="$(DBM "$_records" get "$doc")"; then
  98       [ "$date" -eq "$(json_get obj:"$J" _indexdate)" ] \
  99       && printf '%f     %s      %s\n' \
 100          "$freq" "$(STRING "$doc")" "$(STRING "$J")"
 101     fi
 102   done
 103 }
 104
 105 _INDEX="${PATH_INFO#/}" _INDEX="${_INDEX%%/*}"
 106 _records="${_DATA}/${_INDEX}/_0_DOCS"
 107
 108 if   [ "$REQUEST_METHOD" = "PUT" ]; then
 109   _doc="${PATH_INFO#"/${_INDEX}/_doc"}"
 110
 111   J="$(head -c "${CONTENT_LENGTH:-0}")"
 112   # Don't use json parser to get content field
 113   # Content can be very large and the json parser is slow
 114   content="$(printf %s\\n "$J" |sed -E '
 115     :X; $bY; N; bX; :Y;
 116     s;^.*,[ \t\r\n]*"content"[ \t\r\n]*:[ \t\r\n]*";;
 117     s;".*$;;
 118     s;\\;;g;
 119   ')"
 120   J="$(printf %s\\n "$J" |sed -E '
 121     :X; $bY; N; bX; :Y;
 122     s;,[ \t\r\n]*"content"[ \t\r\n]*:[ \t\r\n]*"[^"]*";;
 123   ')"
 124   J="$(json_load "${J}")"
 125
 126   debug "Content: ${#content} bytes"
 127   debug "$(json_dump "$J")"
 128
 129   if [ "${#content}" -gt 0 ]; then
 130     ingest "$J" "$content"\
 131     | "${_EXEC}/concordance.sh" \
 132       "$_DATA/$_INDEX/" "$(STRING "$_doc")      $_DATE"
 133   fi
 134
 135   J="${J#obj:}"
 136   J="$(DB2 "$J" set _indexdate num:"$_DATE")"
 137
 138   if [ "${#content}" -eq 0 ]; then
 139     printf '%s: %s\r\n' "Status" "200 OK"
 140     result="updated"
 141   elif DBM "$_records" insert "$_doc" "$J"; then
 142     printf '%s: %s\r\n' "Status" "201 Created" "Location" "/${_INDEX}/_doc/$(URL "$_doc")" \
 143     result="created"
 144   elif DBM "$_records" update "$_doc" "$J"; then
 145     printf '%s: %s\r\n' "Status" "200 OK"
 146     result="updated"
 147   else
 148     printf '%s\r\n' "Status: 500 Internal Server Error" ""
 149     exit 0
 150   fi
 151
 152   cat <<-EOF
 153         X-elastic-product: Elasticsearch\r
 154         content-type: application/vnd.elasticsearch+json;compatible-with=8\r
 155         \r
 156         { "_index": $(json_dump str:"${_INDEX}"),
 157           "_id": $(json_dump str:"$_doc"),
 158           "result": "$result",
 159           "_indexdate": $_DATE
 160         }
 161         EOF
 162   exit 0
 163
 164 elif [ "$REQUEST_METHOD" = "DELETE" ]; then
 165   _doc="${PATH_INFO#"/${_INDEX}/_doc"}"
 166
 167   if   DBM "$_records" get "$_doc"; then
 168     if   DBM "$_records" delete "$_doc"; then
 169       printf '%s: %s\r\n' "Status" "200 OK"
 170       result="deleted"
 171     else
 172       printf '%s\r\n' "Status: 500 Internal Server Error" ""
 173       exit 0
 174     fi
 175   else
 176     printf '%s: %s\r\n' "Status" "404 Not Found"
 177     result="not_found"
 178   fi
 179
 180   cat <<-EOF
 181         X-elastic-product: Elasticsearch\r
 182         content-type: application/vnd.elasticsearch+json;compatible-with=8\r
 183         \r
 184         { "_index": $(json_dump str:"${_INDEX}"),
 185           "_id": $(json_dump str:"$_doc"),
 186           "result": "$result",
 187           "_indexdate": $_DATE
 188         }
 189         EOF
 190   exit 0
 191
 192 elif [ "$REQUEST_METHOD" = "POST" ]; then
 193   J="$(json_load "$(head -c "${CONTENT_LENGTH:-0}")")"
 194   J="$(json_get "$J" query.bool.must.bool.should)"
 195
 196   words="$(
 197     for j in $(DB2 "$J" iterate @); do
 198       json_get "$(UNSTRING "$j")" match_phrase_prefix.content
 199     done 2>/dev/null
 200   )"
 201
 202   results="@    $(
 203     search "${_DATA}/${_INDEX}" $words \
 204     | while read -r score id source; do
 205       S="$(DB2   "" set _index  str:"${_INDEX}")"
 206       S="$(DB2 "$S" set _id     str:"$(UNSTRING "${id#/}")")"
 207       S="$(DB2 "$S" set _score  num:"$score")"
 208       S="$(DB2 "$S" set _source obj:"$(UNSTRING "$source")")"
 209       printf 'obj:%s\t' "$(STRING "$S")"
 210     done
 211   )"
 212   results="${results%   }"
 213
 214   cat <<-EOF
 215         Status: 200 OK\r
 216         X-elastic-product: Elasticsearch\r
 217         Content-Type: application/vnd.elasticsearch+json;compatible-with=8\r
 218         \r
 219         { "took":0,
 220           "timed_out":false,
 221           "_shards":{"total":1,"successful":1,"skipped":0,"failed":0},
 222           "hits": {
 223             "total":{"value": $(DB2 "$results" count @) ,"relation":"eq"},
 224             "max_score": $(json_get "arr:$results" '[0]._score' 2>&- || printf 0),
 225             "hits": $(json_dump "arr:$results")
 226           }
 227         }
 228         EOF
 229
 230 elif [ "$REQUEST_METHOD" = "HEAD" ]; then
 231   accept="$(HEADER Accept)"
 232   [ ! "${accept#*"vnd.elasticsearch+json"*}" ] \
 233   && ctype="${accept}" || ctype="application/json"
 234
 235   cat <<-EOF
 236         HTTP/1.1 200 OK\r
 237         X-elastic-product: Elasticsearch\r
 238         content-type: ${ctype}\r
 239         \r
 240         EOF
 241   exit 0
 242
 243 elif [ "$REQUEST_METHOD" = "GET" ]; then
 244   accept="$(HEADER Accept)"
 245   [ ! "${accept#*"vnd.elasticsearch+json"*}" ] \
 246   && ctype="${accept}" || ctype="application/json"
 247
 248   cat <<-EOF
 249         HTTP/1.1 200 OK\r
 250         X-elastic-product: Elasticsearch\r
 251         content-type: ${ctype}\r
 252         \r
 253         EOF
 254
 255   if [ "$PATH_INFO" = "/${_INDEX}/" ]; then
 256   cat <<-EOF
 257         { $(json_dump str:"${_INDEX}"): {
 258             "aliases":{},
 259             "mappings": {
 260               "properties": {
 261                 "content": {"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},
 262                 "hash":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},
 263                 "metatags":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},
 264                 "owner":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},
 265                 "parts":{"properties":{"comments":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}}}},
 266                 "provider":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},
 267                 "share_names":{"properties":{"paul":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}}}},
 268                 "source":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},
 269                 "title":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}}
 270               }
 271             },
 272             "settings": {
 273               "index": {
 274                 "routing":{"allocation":{"include":{"_tier_preference":"data_content"}}},
 275                 "number_of_shards":"1",
 276                 "provided_name": $(json_dump str:"${_INDEX}"),
 277                 "creation_date": "$(stat -c %W "${_DATA}/${_INDEX}")",
 278                 "number_of_replicas":"1",
 279                 "uuid":"0000000000000000000000",
 280                 "version":{"created":"8500010"}
 281               }
 282             }
 283           }
 284         }
 285         EOF
 286   else
 287     cat <<-EOF
 288         { "name" : "head",
 289           "cluster_name" : "elasticsearch",
 290           "version" : {
 291             "number" : "8.12.1",
 292             "lucene_version" : "9.9.2",
 293             "minimum_wire_compatibility_version" : "7.17.0",
 294             "minimum_index_compatibility_version" : "7.0.0"
 295           },
 296           "tagline" : "You Know, for Search"
 297         }
 298         EOF
 299   fi
 300   exit 0
 301
 302 else
 303   printf '%s\r\n' "Status: 500 Internal Server Error" ""
 304   exit 0
 305 fi