Create separate module for the 3 different APIs also CDX is now CLI supported.

waybackpy/cdx_api.py

@@ -0,0 +1,185 @@
+from .exceptions import WaybackError
+from .cdx_snapshot import CDXSnapshot
+from .cdx_utils import (
+    get_total_pages,
+    get_response,
+    check_filters,
+    check_collapses,
+    check_match_type,
+)
+
+from .utils import DEFAULT_USER_AGENT
+
+
+class WaybackMachineCDXServerAPI:
+    def __init__(
+        self,
+        url,
+        user_agent=None,
+        start_timestamp=None,
+        end_timestamp=None,
+        filters=[],
+        match_type=None,
+        gzip=None,
+        collapses=[],
+        limit=None,
+    ):
+        self.url = str(url).strip().replace(" ", "%20")
+        self.user_agent = str(user_agent) if user_agent else DEFAULT_USER_AGENT
+        self.start_timestamp = str(start_timestamp) if start_timestamp else None
+        self.end_timestamp = str(end_timestamp) if end_timestamp else None
+        self.filters = filters
+        check_filters(self.filters)
+        self.match_type = str(match_type).strip() if match_type else None
+        check_match_type(self.match_type, self.url)
+        self.gzip = gzip if gzip else True
+        self.collapses = collapses
+        check_collapses(self.collapses)
+        self.limit = limit if limit else 5000
+        self.last_api_request_url = None
+        self.use_page = False
+        self.endpoint = "https://web.archive.org/cdx/search/cdx"
+
+    def cdx_api_manager(self, payload, headers, use_page=False):
+
+        total_pages = get_total_pages(self.url, self.user_agent)
+        # If we only have two or less pages of archives then we care for accuracy
+        # pagination API can be lagged sometimes
+        if use_page == True and total_pages >= 2:
+            blank_pages = 0
+            for i in range(total_pages):
+                payload["page"] = str(i)
+
+                url, res = get_response(
+                    self.endpoint, params=payload, headers=headers, return_full_url=True
+                )
+
+                self.last_api_request_url = url
+                text = res.text
+                if len(text) == 0:
+                    blank_pages += 1
+
+                if blank_pages >= 2:
+                    break
+
+                yield text
+        else:
+
+            payload["showResumeKey"] = "true"
+            payload["limit"] = str(self.limit)
+            resumeKey = None
+
+            more = True
+            while more:
+
+                if resumeKey:
+                    payload["resumeKey"] = resumeKey
+
+                url, res = get_response(
+                    self.endpoint, params=payload, headers=headers, return_full_url=True
+                )
+
+                self.last_api_request_url = url
+
+                text = res.text.strip()
+                lines = text.splitlines()
+
+                more = False
+
+                if len(lines) >= 3:
+
+                    second_last_line = lines[-2]
+
+                    if len(second_last_line) == 0:
+
+                        resumeKey = lines[-1].strip()
+                        text = text.replace(resumeKey, "", 1).strip()
+                        more = True
+
+                yield text
+
+    def add_payload(self, payload):
+        if self.start_timestamp:
+            payload["from"] = self.start_timestamp
+
+        if self.end_timestamp:
+            payload["to"] = self.end_timestamp
+
+        if self.gzip != True:
+            payload["gzip"] = "false"
+
+        if self.match_type:
+            payload["matchType"] = self.match_type
+
+        if self.filters and len(self.filters) > 0:
+            for i, f in enumerate(self.filters):
+                payload["filter" + str(i)] = f
+
+        if self.collapses and len(self.collapses) > 0:
+            for i, f in enumerate(self.collapses):
+                payload["collapse" + str(i)] = f
+
+        # Don't need to return anything as it's dictionary.
+        payload["url"] = self.url
+
+    def snapshots(self):
+        payload = {}
+        headers = {"User-Agent": self.user_agent}
+
+        self.add_payload(payload)
+
+        if not self.start_timestamp or self.end_timestamp:
+            self.use_page = True
+
+        if self.collapses != []:
+            self.use_page = False
+
+        texts = self.cdx_api_manager(payload, headers, use_page=self.use_page)
+
+        for text in texts:
+
+            if text.isspace() or len(text) <= 1 or not text:
+                continue
+
+            snapshot_list = text.split("\n")
+
+            for snapshot in snapshot_list:
+
+                if len(snapshot) < 46:  # 14 + 32 (timestamp+digest)
+                    continue
+
+                properties = {
+                    "urlkey": None,
+                    "timestamp": None,
+                    "original": None,
+                    "mimetype": None,
+                    "statuscode": None,
+                    "digest": None,
+                    "length": None,
+                }
+
+                prop_values = snapshot.split(" ")
+
+                prop_values_len = len(prop_values)
+                properties_len = len(properties)
+
+                if prop_values_len != properties_len:
+                    raise WaybackError(
+                        "Snapshot returned by Cdx API has {prop_values_len} properties instead of expected {properties_len} properties.\nInvolved Snapshot : {snapshot}".format(
+                            prop_values_len=prop_values_len,
+                            properties_len=properties_len,
+                            snapshot=snapshot,
+                        )
+                    )
+
+                (
+                    properties["urlkey"],
+                    properties["timestamp"],
+                    properties["original"],
+                    properties["mimetype"],
+                    properties["statuscode"],
+                    properties["digest"],
+                    properties["length"],
+                ) = prop_values
+
+                yield CDXSnapshot(properties)