1 files changed, 151 insertions, 0 deletions
diff --git a/python/pdfextract_tool.py b/python/pdfextract_tool.py
new file mode 100755
index 0000000..28d6397
--- /dev/null
+++ b/python/pdfextract_tool.py
@@ -0,0 +1,151 @@
+#!/usr/bin/env python3
+"""
+KNOWN ISSUE: thumbnails are not published to kafka in multi-processing mode
+"""
+
+import argparse
+import sys
+
+from sandcrawler import *
+
+
+def run_extract_json(args):
+    wayback_client = WaybackClient()
+    if args.jobs > 1:
+        worker = PdfExtractWorker(wayback_client, sink=None, thumbnail_sink=None)
+        multi_worker = MultiprocessWrapper(worker, args.sink)
+        pusher = JsonLinePusher(multi_worker, args.json_file, batch_size=args.jobs)
+    else:
+        worker = PdfExtractWorker(
+            wayback_client, sink=args.sink, thumbnail_sink=args.thumbnail_sink
+        )
+        pusher = JsonLinePusher(worker, args.json_file)
+    pusher.run()
+
+
+def run_extract_cdx(args):
+    wayback_client = WaybackClient()
+    if args.jobs > 1:
+        worker = PdfExtractWorker(wayback_client, sink=None, thumbnail_sink=None)
+        multi_worker = MultiprocessWrapper(worker, args.sink)
+        pusher = CdxLinePusher(
+            multi_worker,
+            args.cdx_file,
+            filter_http_statuses=[200, 226],
+            filter_mimetypes=["application/pdf"],
+            batch_size=args.jobs,
+        )
+    else:
+        worker = PdfExtractWorker(
+            wayback_client, sink=args.sink, thumbnail_sink=args.thumbnail_sink
+        )
+        pusher = CdxLinePusher(
+            worker,
+            args.cdx_file,
+            filter_http_statuses=[200, 226],
+            filter_mimetypes=["application/pdf"],
+        )
+    pusher.run()
+
+
+def run_extract_zipfile(args):
+    if args.jobs > 1:
+        print("multi-processing: {}".format(args.jobs), file=sys.stderr)
+        worker = PdfExtractBlobWorker(sink=None, thumbnail_sink=None)
+        multi_worker = MultiprocessWrapper(worker, args.sink, jobs=args.jobs)
+        pusher = ZipfilePusher(multi_worker, args.zip_file, batch_size=args.jobs)
+    else:
+        worker = PdfExtractBlobWorker(sink=args.sink, thumbnail_sink=args.thumbnail_sink)
+        pusher = ZipfilePusher(worker, args.zip_file)
+    pusher.run()
+
+
+def run_single(args):
+    worker = PdfExtractBlobWorker(sink=args.sink, thumbnail_sink=args.thumbnail_sink)
+    with open(args.pdf_file, "rb") as pdf_file:
+        pdf_bytes = pdf_file.read()
+    worker.push_record(pdf_bytes)
+    worker.finish()
+    if args.thumbnail_sink:
+        args.thumbnail_sink.finish()
+
+
+def main():
+    parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+    parser.add_argument(
+        "--kafka-mode", action="store_true", help="send output to Kafka (not stdout)"
+    )
+    parser.add_argument(
+        "--kafka-hosts",
+        default="localhost:9092",
+        help="list of Kafka brokers (host/port) to use",
+    )
+    parser.add_argument(
+        "--kafka-env", default="dev", help="Kafka topic namespace to use (eg, prod, qa, dev)"
+    )
+    parser.add_argument(
+        "-j", "--jobs", default=8, type=int, help="parallelism for batch CPU jobs"
+    )
+    subparsers = parser.add_subparsers()
+
+    sub_extract_json = subparsers.add_parser(
+        "extract-json",
+        help="for each JSON line with CDX info, fetches PDF and does PDF extraction",
+    )
+    sub_extract_json.set_defaults(func=run_extract_json)
+    sub_extract_json.add_argument(
+        "json_file",
+        help="JSON file to import from (or '-' for stdin)",
+        type=argparse.FileType("r"),
+    )
+
+    sub_extract_cdx = subparsers.add_parser(
+        "extract-cdx", help="for each CDX line, fetches PDF and does PDF extraction"
+    )
+    sub_extract_cdx.set_defaults(func=run_extract_cdx)
+    sub_extract_cdx.add_argument(
+        "cdx_file",
+        help="CDX file to import from (or '-' for stdin)",
+        type=argparse.FileType("r"),
+    )
+
+    sub_extract_zipfile = subparsers.add_parser(
+        "extract-zipfile",
+        help="opens zipfile, iterates over PDF files inside and does PDF extract for each",
+    )
+    sub_extract_zipfile.set_defaults(func=run_extract_zipfile)
+    sub_extract_zipfile.add_argument("zip_file", help="zipfile with PDFs to extract", type=str)
+
+    sub_single = subparsers.add_parser("single", help="opens single PDF and extracts it")
+    sub_single.set_defaults(func=run_single)
+    sub_single.add_argument("pdf_file", help="single PDF to extract", type=str)
+
+    args = parser.parse_args()
+    if not args.__dict__.get("func"):
+        parser.print_help(file=sys.stderr)
+        sys.exit(-1)
+
+    args.text_sink = None
+    args.thumbnail_sink = None
+    if args.kafka_mode:
+        text_topic = "sandcrawler-{}.pdf-text".format(args.kafka_env)
+        thumbnail_topic = "sandcrawler-{}.pdf-thumbnail-180px-jpg".format(args.kafka_env)
+        args.sink = KafkaCompressSink(kafka_hosts=args.kafka_hosts, produce_topic=text_topic)
+        args.thumbnail_sink = KafkaSink(
+            kafka_hosts=args.kafka_hosts, produce_topic=thumbnail_topic
+        )
+        print(
+            "Running in kafka output mode, publishing to {} and {}\n".format(
+                text_topic, thumbnail_topic
+            ),
+            file=sys.stderr,
+        )
+    else:
+        args.sink = None
+        args.thumbnail_sink = None
+
+    args.func(args)
+
+
+if __name__ == "__main__":
+    main()