X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=fba%2Fhttp%2Ffederation.py;h=136a4ea3158b848c2af41e20b64fa4ca09b597cd;hb=c32f3df7a967ab56c13efde503e74b6fcf611f90;hp=e726ae5941ddf27074f047a99cc97bda7c17d03a;hpb=4d4dac367bd3d068f318f862a2560a0f02b4260a;p=fba.git

diff --git a/fba/http/federation.py b/fba/http/federation.py
index e726ae5..136a4ea 100644
--- a/fba/http/federation.py
+++ b/fba/http/federation.py
@@ -21,8 +21,7 @@ import bs4
 import requests
 import validators
 
-from fba import csrf
-
+from fba.helpers import blacklist
 from fba.helpers import config
 from fba.helpers import cookies
 from fba.helpers import domain as domain_helper
@@ -30,9 +29,11 @@ from fba.helpers import software as software_helper
 from fba.helpers import tidyup
 from fba.helpers import version
 
+from fba.http import csrf
 from fba.http import network
 from fba.http import nodeinfo
 
+from fba.models import blocks
 from fba.models import instances
 
 from fba.networks import lemmy
@@ -42,6 +43,12 @@ from fba.networks import peertube
 # Depth counter, being raised and lowered
 _DEPTH = 0
 
+# API paths
+_api_paths = [
+    "/api/v1/instance/peers",
+    "/api/v3/site",
+]
+
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
 
@@ -50,21 +57,25 @@ def fetch_instances(domain: str, origin: str, software: str, command: str, path:
     logger.debug("domain='%s',origin='%s',software='%s',command='%s',path='%s',_DEPTH=%d - CALLED!", domain, origin, software, command, path, _DEPTH)
     domain_helper.raise_on(domain)
 
-    if not isinstance(origin, str) and origin is not None:
+    if blacklist.is_blacklisted(domain):
+        raise Exception(f"domain='{domain}' is blacklisted but function was invoked")
+    elif not isinstance(origin, str) and origin is not None:
         raise ValueError(f"Parameter origin[]='{type(origin)}' is not of type 'str'")
     elif not isinstance(command, str):
         raise ValueError(f"Parameter command[]='{type(command)}' is not of type 'str'")
     elif command == "":
         raise ValueError("Parameter 'command' is empty")
-    elif command in ["fetch_blocks", "fetch_cs", "fetch_bkali", "fetch_relays", "fetch_fedipact", "fetch_joinmobilizon", "fetch_joinmisskey", "fetch_joinfediverse"] and origin is None:
+    elif command in ["fetch_blocks", "fetch_cs", "fetch_bkali", "fetch_relays", "fetch_fedipact", "fetch_joinmobilizon", "fetch_joinmisskey", "fetch_joinfediverse", "fetch_relaylist"] and origin is None:
         raise ValueError(f"Parameter command='{command}' but origin is None, please fix invoking this function.")
     elif not isinstance(path, str) and path is not None:
         raise ValueError(f"Parameter path[]='{type(path)}' is not of type 'str'")
+    elif path is not None and not path.startswith("/"):
+        raise ValueError(f"path='{path}' does not start with a slash")
     elif _DEPTH > 0 and instances.is_recent(domain, "last_instance_fetch"):
         raise ValueError(f"domain='{domain}' has recently been fetched but function was invoked")
     elif software is None and not instances.is_recent(domain, "last_nodeinfo"):
         try:
-            logger.debug("Software for domain='%s' is not set, determining ...", domain)
+            logger.debug("Software for domain='%s',path='%s' is not set, determining ...", domain, path)
             software = determine_software(domain, path)
         except network.exceptions as exception:
             logger.warning("Exception '%s' during determining software type", type(exception))
@@ -84,51 +95,62 @@ def fetch_instances(domain: str, origin: str, software: str, command: str, path:
         logger.debug("Adding new domain='%s',origin='%s',command='%s',path='%s',software='%s'", domain, origin, command, path, software)
         instances.add(domain, origin, command, path, software)
 
+        logger.debug("software='%s'", software)
+        if software_helper.is_relay(software):
+            logger.debug("software='%s' is a relay software - EXIT!", software)
+            _DEPTH = _DEPTH - 1
+            return
+
     logger.debug("Updating last_instance_fetch for domain='%s' ...", domain)
     instances.set_last_instance_fetch(domain)
 
     peerlist = list()
     logger.debug("software='%s'", software)
     if software is not None:
-        try:
-            logger.debug("Fetching instances for domain='%s',software='%s',origin='%s'", domain, software, origin)
-            peerlist = fetch_peers(domain, software, origin)
-        except network.exceptions as exception:
-            logger.warning("Cannot fetch peers from domain='%s',software='%s': '%s'", domain, software, type(exception))
+        logger.debug("Fetching instances for domain='%s',software='%s',origin='%s'", domain, software, origin)
+        peerlist = fetch_peers(domain, software, origin)
 
     logger.debug("peerlist[]='%s'", type(peerlist))
     if isinstance(peerlist, list):
         logger.debug("Invoking instances.set_total_peerlist(%s,%d) ...", domain, len(peerlist))
         instances.set_total_peers(domain, peerlist)
 
+    logger.debug("Invoking cookies.clear(%s) ...", domain)
+    cookies.clear(domain)
+
     logger.debug("peerlist[]='%s'", type(peerlist))
-    if peerlist is None or len(peerlist) == 0:
+    if peerlist is None:
         logger.warning("Cannot fetch peers: domain='%s',software='%s'", domain, software)
-
         if instances.has_pending(domain):
             logger.debug("Flushing updates for domain='%s' ...", domain)
-            instances.update_data(domain)
-
-        logger.debug("Invoking cookies.clear(%s) ...", domain)
-        cookies.clear(domain)
+            instances.update(domain)
 
         _DEPTH = _DEPTH - 1
         logger.debug("EXIT!")
         return
+    elif len(peerlist) == 0:
+        logger.info("domain='%s' returned an empty peer list.", domain)
+        if instances.has_pending(domain):
+            logger.debug("Flushing updates for domain='%s' ...", domain)
+            instances.update(domain)
+
+        _DEPTH = _DEPTH - 1
+        logger.debug("domain='%s',software='%s' has an empty peer list returned - EXIT!", domain, software)
+        return
 
     logger.info("Checking %d instance(s) from domain='%s',software='%s',depth=%d ...", len(peerlist), domain, software, _DEPTH)
     for instance in peerlist:
-        logger.debug("instance='%s'", instance)
+        logger.debug("instance[%s]='%s'", type(instance), instance)
         if instance is None or instance == "":
             logger.debug("instance[%s]='%s' is either None or empty - SKIPPED!", type(instance), instance)
             continue
 
         logger.debug("instance='%s' - BEFORE!", instance)
-        instance = tidyup.domain(instance)
+        instance = tidyup.domain(instance) if isinstance(instance, str) and instance != "" else None
         logger.debug("instance='%s' - AFTER!", instance)
 
-        if instance == "":
-            logger.warning("Empty instance after tidyup.domain(), domain='%s'", domain)
+        if instance is None or instance == "":
+            logger.warning("instance='%s' is empty after tidyup.domain(), domain='%s'", instance, domain)
             continue
         elif ".." in instance:
             logger.warning("instance='%s' contains double-dot, removing ...", instance)
@@ -151,7 +173,7 @@ def fetch_instances(domain: str, origin: str, software: str, command: str, path:
             logger.debug("Checking if domain='%s' has pending updates ...", domain)
             if instances.has_pending(domain):
                 logger.debug("Flushing updates for domain='%s' ...", domain)
-                instances.update_data(domain)
+                instances.update(domain)
 
             logger.debug("instance='%s',origin='%s',_DEPTH=%d reached!", instance, origin, _DEPTH)
             if _DEPTH <= config.get("max_crawl_depth") and len(peerlist) >= config.get("min_peers_length"):
@@ -161,13 +183,10 @@ def fetch_instances(domain: str, origin: str, software: str, command: str, path:
                 logger.debug("Adding instance='%s',domain='%s',command='%s',_DEPTH=%d ...", instance, domain, command, _DEPTH)
                 instances.add(instance, domain, command)
 
-    logger.debug("Invoking cookies.clear(%s) ...", domain)
-    cookies.clear(domain)
-
     logger.debug("Checking if domain='%s' has pending updates ...", domain)
     if instances.has_pending(domain):
         logger.debug("Flushing updates for domain='%s' ...", domain)
-        instances.update_data(domain)
+        instances.update(domain)
 
     _DEPTH = _DEPTH - 1
     logger.debug("EXIT!")
@@ -176,8 +195,14 @@ def fetch_peers(domain: str, software: str, origin: str) -> list:
     logger.debug("domain='%s',software='%s',origin='%s' - CALLED!", domain, software, origin)
     domain_helper.raise_on(domain)
 
-    if not isinstance(software, str) and software is not None:
+    if blacklist.is_blacklisted(domain):
+        raise Exception(f"domain='{domain}' is blacklisted but function was invoked")
+    elif not isinstance(software, str) and software is not None:
         raise ValueError(f"Parameter software[]='{type(software)}' is not of type 'str'")
+    elif isinstance(software, str) and software == "":
+        raise ValueError("Parameter 'software' is empty")
+    elif software_helper.is_relay(software):
+        raise ValueError(f"domain='{domain}' is of software='{software}' and isn't supported here.")
     elif not isinstance(origin, str) and origin is not None:
         raise ValueError(f"Parameter origin[]='{type(origin)}' is not of type 'str'")
     elif isinstance(origin, str) and origin == "":
@@ -206,25 +231,20 @@ def fetch_peers(domain: str, software: str, origin: str) -> list:
         logger.debug("Returning empty list ... - EXIT!")
         return list()
 
-    paths = [
-        "/api/v1/instance/peers",
-        "/api/v3/site",
-    ]
-
     # Init peers variable
     peers = list()
 
-    logger.debug("Checking %d paths ...", len(paths))
-    for path in paths:
+    logger.debug("Checking %d API paths ...", len(_api_paths))
+    for path in _api_paths:
         logger.debug("Fetching path='%s' from domain='%s',software='%s' ...", path, domain, software)
         data = network.get_json_api(
             domain,
             path,
-            headers,
-            (config.get("connection_timeout"), config.get("read_timeout"))
+            headers=headers,
+            timeout=(config.get("connection_timeout"), config.get("read_timeout"))
         )
 
-        logger.debug("data[]='%s'", type(data))
+        logger.debug("data(%d)[]='%s'", len(data), type(data))
         if "error_message" in data:
             logger.debug("Was not able to fetch peers from path='%s',domain='%s' ...", path, domain)
             instances.set_last_error(domain, data)
@@ -250,25 +270,28 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
     logger.debug("domain='%s',path='%s' - CALLED!", domain, path)
     domain_helper.raise_on(domain)
 
-    if not isinstance(path, str):
+    if blacklist.is_blacklisted(domain):
+        raise Exception(f"domain='{domain}' is blacklisted but function was invoked")
+    elif not isinstance(path, str):
         raise ValueError(f"path[]='{type(path)}' is not of type 'str'")
     elif path == "":
         raise ValueError("Parameter 'path' is empty")
+    elif not path.startswith("/"):
+        raise ValueError(f"path='{path}' does not start with / but should")
 
-    logger.debug("domain='%s',path='%s' - CALLED!", domain, path)
     software = None
 
     logger.debug("Fetching path='%s' from domain='%s' ...", path, domain)
     response = network.fetch_response(
         domain,
         path,
-        network.web_headers,
-        (config.get("connection_timeout"), config.get("read_timeout")),
+        headers=network.web_headers,
+        timeout=(config.get("connection_timeout"), config.get("read_timeout")),
         allow_redirects=True
     )
 
     logger.debug("response.ok='%s',response.status_code=%d,response.text()=%d", response.ok, response.status_code, len(response.text))
-    if ((response.ok and response.status_code < 300) or response.status_code == 410) and response.text.find("<html") > 0 and domain_helper.is_in_url(domain, response.url):
+    if ((response.ok and response.status_code == 200) or response.status_code == 410) and response.text.find("<html") > 0 and domain_helper.is_in_url(domain, response.url):
         logger.debug("Parsing response.text()=%d Bytes ...", len(response.text))
         doc = bs4.BeautifulSoup(response.text, "html.parser")
 
@@ -279,15 +302,15 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
         app_name  = doc.find("meta", {"name"    : "application-name"})
 
         logger.debug("generator[]='%s',site_name[]='%s',platform[]='%s',app_name[]='%s'", type(generator), type(site_name), type(platform), type(app_name))
-        if isinstance(platform, bs4.element.Tag) and isinstance(platform.get("content"), str):
+        if isinstance(platform, bs4.element.Tag) and isinstance(platform.get("content"), str) and platform.get("content") != "":
             logger.debug("Found property=og:platform, domain='%s'", domain)
             software = tidyup.domain(platform.get("content"))
+            logger.debug("software[%s]='%s' after tidyup.domain() ...", type(software), software)
 
-            logger.debug("software[%s]='%s'", type(software), software)
             if software is not None and software != "":
                 logger.debug("domain='%s' has og:platform='%s' - Setting detection_mode=PLATFORM ...", domain, software)
                 instances.set_detection_mode(domain, "PLATFORM")
-        elif isinstance(generator, bs4.element.Tag) and isinstance(generator.get("content"), str):
+        elif isinstance(generator, bs4.element.Tag) and isinstance(generator.get("content"), str) and generator.get("content") != "":
             logger.debug("Found generator meta tag: domain='%s'", domain)
             software = tidyup.domain(generator.get("content"))
 
@@ -295,7 +318,7 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
             if software is not None and software != "":
                 logger.info("domain='%s' is generated by software='%s' - Setting detection_mode=GENERATOR ...", domain, software)
                 instances.set_detection_mode(domain, "GENERATOR")
-        elif isinstance(app_name, bs4.element.Tag) and isinstance(app_name.get("content"), str):
+        elif isinstance(app_name, bs4.element.Tag) and isinstance(app_name.get("content"), str) and app_name.get("content") != "":
             logger.debug("Found property=og:app_name, domain='%s'", domain)
             software = tidyup.domain(app_name.get("content"))
 
@@ -303,7 +326,7 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
             if software is not None and software != "":
                 logger.debug("domain='%s' has application-name='%s' - Setting detection_mode=app_name ...", domain, software)
                 instances.set_detection_mode(domain, "APP_NAME")
-        elif isinstance(site_name, bs4.element.Tag) and isinstance(site_name.get("content"), str):
+        elif isinstance(site_name, bs4.element.Tag) and isinstance(site_name.get("content"), str) and site_name.get("content") != "":
             logger.debug("Found property=og:site_name, domain='%s'", domain)
             software = tidyup.domain(site_name.get("content"))
 
@@ -315,11 +338,15 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
         logger.warning("domain='%s' doesn't match response.url='%s', maybe redirect to other domain?", domain, response.url)
 
         components = urlparse(response.url)
+        domain2 = components.netloc.lower().split(":")[0]
 
-        logger.debug("components[]='%s'", type(components))
-        if not instances.is_registered(components.netloc):
+        logger.debug("domain2='%s'", domain2)
+        if not domain_helper.is_wanted(domain2):
+            logger.debug("domain2='%s' is not wanted - EXIT!", domain2)
+            return None
+        elif not instances.is_registered(domain2):
             logger.info("components.netloc='%s' is not registered, adding ...", components.netloc)
-            fetch_instances(components.netloc, domain, None, "fetch_generator")
+            instances.add(domain2, domain, "redirect_target")
 
         message = f"Redirect from domain='{domain}' to response.url='{response.url}'"
         instances.set_last_error(domain, message)
@@ -337,7 +364,7 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
         logger.debug("software='%s' may contain a version number, domain='%s', removing it ...", software, domain)
         software = version.remove(software)
 
-    logger.debug("software[]='%s'", type(software))
+    logger.debug("software[%s]='%s'", type(software), software)
     if isinstance(software, str) and "powered by " in software:
         logger.debug("software='%s' has 'powered by' in it", software)
         software = version.remove(software_helper.strip_powered_by(software))
@@ -351,22 +378,24 @@ def fetch_generator_from_path(domain: str, path: str = "/") -> str:
         logger.debug("software='%s' has ' see ' in it", software)
         software = software_helper.strip_until(software, " see ")
 
-    logger.debug("software='%s' - EXIT!", software)
+    logger.debug("software[%s]='%s' - EXIT!", type(software), software)
     return software
 
 def determine_software(domain: str, path: str = None) -> str:
     logger.debug("domain='%s',path='%s' - CALLED!", domain, path)
     domain_helper.raise_on(domain)
 
-    if not isinstance(path, str) and path is not None:
+    if blacklist.is_blacklisted(domain):
+        raise Exception(f"domain='{domain}' is blacklisted but function was invoked")
+    elif not isinstance(path, str) and path is not None:
         raise ValueError(f"Parameter path[]='{type(path)}' is not of type 'str'")
+    elif path is not None and not path.startswith("/"):
+        raise ValueError(f"path='{path}' does not start with a slash")
 
-    logger.debug("Determining software for domain='%s',path='%s'", domain, path)
+    logger.debug("Fetching nodeinfo from domain='%s',path='%s' ...", domain, path)
+    data = nodeinfo.fetch(domain, path)
     software = None
 
-    logger.debug("Fetching nodeinfo from domain='%s' ...", domain)
-    data = nodeinfo.fetch_nodeinfo(domain, path)
-
     logger.debug("data[%s]='%s'", type(data), data)
     if "exception" in data:
         # Continue raising it
@@ -418,7 +447,7 @@ def determine_software(domain: str, path: str = None) -> str:
         logger.debug("Generator for domain='%s' is: '%s'", domain, software)
 
     logger.debug("software[%s]='%s'", type(software), software)
-    if software is None:
+    if software is None or software == "":
         logger.debug("Returning None - EXIT!")
         return None
 
@@ -440,7 +469,7 @@ def determine_software(domain: str, path: str = None) -> str:
 
     software = software.strip()
 
-    logger.debug("software='%s' - EXIT!", software)
+    logger.debug("software[%s]='%s' - EXIT!", type(software), software)
     return software
 
 def find_domains(tag: bs4.element.Tag) -> list:
@@ -466,7 +495,7 @@ def find_domains(tag: bs4.element.Tag) -> list:
             logger.debug("domain='%s' is blacklisted - SKIPPED!", domain)
             continue
         elif domain == "gab.com/.ai, develop.gab.com":
-            logger.debug("Multiple domains detected in one row")
+            logger.debug("Multiple gab.com domains detected in one row")
             domains.append({
                 "domain": "gab.com",
                 "reason": reason,
@@ -500,7 +529,7 @@ def add_peers(rows: dict) -> list:
 
     peers = list()
     for key in ["linked", "allowed", "blocked"]:
-        logger.debug("Checking key='%s'", key)
+        logger.debug("key='%s'", key)
         if key not in rows or rows[key] is None:
             logger.debug("Cannot find key='%s' or it is NoneType - SKIPPED!", key)
             continue
@@ -530,3 +559,101 @@ def add_peers(rows: dict) -> list:
 
     logger.debug("peers()=%d - EXIT!", len(peers))
     return peers
+
+def fetch_blocks(domain: str) -> list:
+    logger.debug("domain='%s' - CALLED!", domain)
+    domain_helper.raise_on(domain)
+
+    if not instances.is_registered(domain):
+        raise Exception(f"domain='{domain}' is not registered but function is invoked.")
+    elif blacklist.is_blacklisted(domain):
+        raise Exception(f"domain='{domain}' is blacklisted but function was invoked")
+
+    # Init block list
+    blocklist = list()
+
+    # No CSRF by default, you don't have to add network.api_headers by yourself here
+    headers = tuple()
+
+    try:
+        logger.debug("Checking CSRF for domain='%s'", domain)
+        headers = csrf.determine(domain, dict())
+    except network.exceptions as exception:
+        logger.warning("Exception '%s' during checking CSRF (fetch_blocks,%s)", type(exception), __name__)
+        instances.set_last_error(domain, exception)
+
+        logger.debug("Returning empty list ... - EXIT!")
+        return list()
+
+    try:
+        # json endpoint for newer mastodongs
+        logger.info("Fetching domain_blocks from domain='%s' ...", domain)
+        data = network.get_json_api(
+            domain,
+            "/api/v1/instance/domain_blocks",
+            headers=headers,
+            timeout=(config.get("connection_timeout"), config.get("read_timeout"))
+        )
+        rows = list()
+
+        logger.debug("data(%d)[]='%s'", len(data), type(data))
+        if "error_message" in data:
+            logger.debug("Was not able to fetch domain_blocks from domain='%s': status_code=%d,error_message='%s'", domain, data['status_code'], data['error_message'])
+            instances.set_last_error(domain, data)
+
+            logger.debug("blocklist()=%d - EXIT!", len(blocklist))
+            return blocklist
+        elif "json" in data and "error" in data["json"]:
+            logger.warning("JSON API returned error message: '%s'", data["json"]["error"])
+            instances.set_last_error(domain, data)
+
+            logger.debug("blocklist()=%d - EXIT!", len(blocklist))
+            return blocklist
+        else:
+            # Getting blocklist
+            rows = data["json"]
+
+            logger.debug("Marking domain='%s' as successfully handled ...", domain)
+            instances.set_success(domain)
+
+        logger.debug("rows(%d)[]='%s'", len(rows), type(rows))
+        if len(rows) > 0:
+            logger.debug("Checking %d entries from domain='%s' ...", len(rows), domain)
+            for block in rows:
+                # Check type
+                logger.debug("block[]='%s'", type(block))
+                if not isinstance(block, dict):
+                    logger.debug("block[]='%s' is of type 'dict' - SKIPPED!", type(block))
+                    continue
+                elif "domain" not in block:
+                    logger.warning("block()=%d does not contain element 'domain' - SKIPPED!", len(block))
+                    continue
+                elif "severity" not in block:
+                    logger.warning("block()=%d does not contain element 'severity' - SKIPPED!", len(block))
+                    continue
+                elif block["severity"] in ["accept", "accepted"]:
+                    logger.debug("block[domain]='%s' has unwanted severity level '%s' - SKIPPED!", block["domain"], block["severity"])
+                    continue
+                elif "digest" in block and not validators.hashes.sha256(block["digest"]):
+                    logger.warning("block[domain]='%s' has invalid block[digest]='%s' - SKIPPED!", block["domain"], block["digest"])
+                    continue
+
+                reason = tidyup.reason(block["comment"]) if "comment" in block and block["comment"] is not None and block["comment"] != "" else None
+
+                logger.debug("Appending blocker='%s',blocked='%s',reason='%s',block_level='%s' ...", domain, block["domain"], reason, block["severity"])
+                blocklist.append({
+                    "blocker"    : domain,
+                    "blocked"    : block["domain"],
+                    "digest"     : block["digest"] if "digest" in block else None,
+                    "reason"     : reason,
+                    "block_level": blocks.alias_block_level(block["severity"]),
+                })
+        else:
+            logger.debug("domain='%s' has no block list", domain)
+
+    except network.exceptions as exception:
+        logger.warning("domain='%s',exception[%s]='%s'", domain, type(exception), str(exception))
+        instances.set_last_error(domain, exception)
+
+    logger.debug("blocklist()=%d - EXIT!", len(blocklist))
+    return blocklist