1 files changed, 276 insertions, 0 deletions
diff --git a/tool/setup.py b/tool/setup.py
new file mode 100755
index 0000000..93a63ae
--- /dev/null
+++ b/tool/setup.py
@@ -0,0 +1,276 @@
+#!/usr/bin/env python3
+
+import os
+import os.path
+import re
+import pwd
+import grp
+import sys
+import argparse
+
+parser = argparse.ArgumentParser(
+    description="Crupest server all-in-one setup script. Have fun play with it!")
+parser.add_argument("action", choices=["setup", "download-tools", "clear"], default="setup", nargs="?",
+                    help="choose what to do, 'setup' for everything needed to run server, 'download-tools' for downloading other needed tools for setup, 'clear' for deleting everything so you can restart.")
+parser.add_argument("--include-data-dir", action="store_true",
+                    default=False, help="include data dir when clear")
+args = parser.parse_args()
+
+if args.action != 'clear' and args.include_data_dir:
+    print("Warning: --include-data-dir is only used when clear, ignored.")
+
+print("Nice to see you!\n")
+
+# get script dir in relative path
+script_dir = os.path.dirname(__file__)
+project_dir = os.path.normpath(os.path.join(script_dir, "../"))
+template_dir = os.path.join(project_dir, "template")
+data_dir = os.path.join(project_dir, "data")
+tool_dir = os.path.join(project_dir, "tool")
+
+
+def download_tools():
+    SCRIPTS = [("docker-mailserver setup script", "docker-mailserver-setup.sh",
+                "https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/setup.sh")]
+    for script in SCRIPTS:
+        name, filename, url = script
+        path = os.path.join(tool_dir, filename)
+        skip = False
+        if os.path.exists(path):
+            print(f"{name} already exists, download and overwrite? (y/N)", end=" ")
+            if input() != "y":
+                skip = True
+        else:
+            print(f"Download {name} to {path}? (Y/n)", end=" ")
+            if input() == "n":
+                skip = True
+        if not skip:
+            print(f"Downloading {name}...")
+            os.system(f"curl -s {url} > {path} && chmod +x {path}")
+            print(f"Downloaded {name} to {path}.")
+        else:
+            print(f"Skipped {name}.")
+
+
+if args.action == 'download-tools':
+    download_tools()
+    exit(0)
+
+print("First let's check all the templates...")
+
+# get all filenames ending with .template
+template_name_list = [os.path.basename(f)[:-len('.template')] for f in os.listdir(
+    template_dir) if f.endswith(".template")]
+
+# if action is 'clean'
+if args.action == "clear":
+    # check root if we have to delete data dir
+    if args.include_data_dir and os.path.exists(data_dir) and os.geteuid() != 0:
+        print("You need to be root to delete data dir.")
+        sys.exit(1)
+
+    print("Are you sure you want to delete everything? all your data will be lost! (y/N)", end=" ")
+    if input() == "y":
+        files_to_delete = []
+        for template_name in template_name_list:
+            f = os.path.join(project_dir, template_name)
+            if os.path.exists(f):
+                files_to_delete.append(f)
+
+        delete_data_dir = args.include_data_dir and os.path.exists(data_dir)
+
+        if len(files_to_delete) == 0:
+            print("Nothing to delete. We are safe!")
+            exit(0)
+
+        print("Here are the files to delete:")
+        for f in files_to_delete:
+            print(f)
+        if delete_data_dir:
+            print(data_dir + " (data dir)")
+
+        print("Are you sure you want to delete them? (y/N)", end=" ")
+        if input() == "y":
+            for f in files_to_delete:
+                os.remove(f)
+            if delete_data_dir:
+                os.rmdir(data_dir)
+        print("Your workspace is clean now! However config file is still there! See you!")
+    exit(0)
+
+print("I have found following template files:")
+for filename in template_name_list:
+    print(filename)
+print("")
+
+required_config_key_list = [
+    ("CRUPEST_DOMAIN", None),
+    ("CRUPEST_USER", lambda: pwd.getpwuid(os.getuid()).pw_name),
+    ("CRUPEST_GROUP", lambda: grp.getgrgid(os.getgid()).gr_name),
+    ("CRUPEST_UID", lambda: str(os.getuid())),
+    ("CRUPEST_GID", lambda: str(os.getgid())),
+    ("CRUPEST_HALO_DB_PASSWORD", lambda: os.urandom(8).hex()),
+    ("CRUPEST_IN_CHINA", lambda: "false")
+]
+
+required_config_value_generator_map = dict(required_config_key_list)
+
+required_config_keys = set([key for key, _ in required_config_key_list])
+
+sub_regex = re.compile(r"\{\{\s*([a-zA-Z0-9_]+?)\s*\}\}")
+var_set = set()
+for template in os.listdir(template_dir):
+    if not template.endswith(".template"):
+        continue
+    with open(os.path.join(template_dir, template), "r") as f:
+        content = f.read()
+        match_list = sub_regex.finditer(content)
+        for match in match_list:
+            var_set.add(match.group(1))
+
+print("I have found following variables needed in templates:")
+for var in var_set:
+    print(var, end=" ")
+print("")
+
+# check vars
+if not var_set == required_config_keys:
+    print("The variables needed in templates are not same to the explicitly declared ones! There must be something wrong.")
+    print("The explicitly declared ones are:")
+    for var in required_config_keys:
+        print(var, end=" ")
+    print("Try to check template files and edit the var list at the head of this script. Aborted! See you next time!")
+    exit(1)
+
+
+print("Now let's check if they are already generated...")
+
+conflict = False
+
+# check if there exists any generated files
+for filename in template_name_list:
+    if os.path.exists(os.path.join(project_dir, filename)):
+        print(f"Found {filename}")
+        conflict = True
+
+if conflict:
+    print("It seems there are some files already generated. Do you want to overwrite them? (y/N)")
+    if input() != "y":
+        print("Great! Check the existing files and see you next time!")
+        exit()
+else:
+    print("No conflict found. Let's go on!\n")
+
+print("Check for existing config file...")
+
+config_path = os.path.join(data_dir, "config")
+
+
+def parse_config(str):
+    config = {}
+    for line_number, line in enumerate(str.splitlines()):
+        # check if it's a comment
+        if line.startswith("#"):
+            continue
+        # check if there is a '='
+        if line.find("=") == -1:
+            print(
+                f"Invalid config file. Please check line {line_number + 1}. There is even no '='! Aborted!")
+        # split at first '='
+        key, value = line.split("=", 1)
+        key = key.strip()
+        value = value.strip()
+        config[key] = value
+    return config
+
+
+def config_to_str(config):
+    return "\n".join([f"{key}={value}" for key, value in config.items()])
+
+
+def print_config(config):
+    print(config_to_str(config))
+
+
+# check if there exists a config file
+if not os.path.exists(config_path):
+    config = {}
+    print("No existing config file found. Don't worry. Let's create one! Just tell me your domain name:")
+    config["CRUPEST_DOMAIN"] = input()
+    for key, default_generator in required_config_key_list:
+        if default_generator is not None:
+            config[key] = default_generator()
+    config_content = config_to_str(config)
+    # create data dir if not exist
+    if not os.path.exists(data_dir):
+        os.mkdir(data_dir)
+    # write config file
+    with open(config_path, "w") as f:
+        f.write(config_content)
+    print(
+        f"Everything else is auto generated. The config file is written into {config_path}. You had better keep it well. And here is the content:")
+    print(config_content)
+    print("If you think it's not ok, you can stop here and edit it. Or let's go on? (Y/n)")
+    if input() == "n":
+        print("Great! Check the config file and see you next time!")
+        exit()
+else:
+    print("Looks like you have already had a config file. Let's check the content:")
+    with open(config_path, "r") as f:
+        content = f.read()
+    config = parse_config(content)
+    print_config(config)
+    missed_keys = []
+    for required_key in required_config_keys:
+        if required_key not in config:
+            missed_keys.append(required_key)
+
+    if len(missed_keys) > 0:
+        print(
+            "Oops! It seems you have missed some keys in your config file. Let's add them!")
+        if "CRUPEST_DOMAIN" in missed_keys:
+            print("Please tell me your domain name:")
+            config["CRUPEST_DOMAIN"] = input()
+            missed_keys.remove("CRUPEST_DOMAIN")
+        for key in missed_keys:
+            config[key] = required_config_value_generator_map[key]()
+        content = config_to_str(config)
+        with open(config_path, "w") as f:
+            f.write(content)
+        print("Here is the new config, it has been written out:")
+        print(content)
+    print("Is it good enough? (Y/n)")
+    if input() == "n":
+        print("Great! Check the config file and see you next time!")
+        exit()
+
+print("Finally, everything is ready. Let's generate the files:")
+
+# generate files
+for filename in template_name_list:
+    print(f"Generating {filename}...")
+    with open(os.path.join(template_dir, filename + ".template"), "r") as f:
+        content = f.read()
+        content = sub_regex.sub(lambda m: config[m.group(1)], content)
+        with open(os.path.join(project_dir, filename), "w") as f:
+            f.write(content)
+
+print()
+
+if not os.path.exists(os.path.join(data_dir, "code-server")):
+    os.mkdir(os.path.join(data_dir, "code-server"))
+    print("I also create data dir for code-server. Because letting docker create it would result in permission problem.")
+else:
+    code_server_stat = os.stat(os.path.join(data_dir, "code-server"))
+    if code_server_stat.st_uid == 0 or code_server_stat.st_gid == 0:
+        print("WARNING: The owner of data dir for code-server is root. This may cause permission problem. You had better change it. Want me help you? (Y/n)")
+        if input() != "n":
+            os.system(f"sudo chown -R {os.getuid()}:{os.getgid()} {os.path.join(data_dir, 'code-server')}")
+print()
+
+print("🍻All done! By the way, would you like to download some scripts to do some extra setup like creating email user? (Y/n)")
+if input() == "n":
+    print("Great! See you next time!")
+    exit()
+
+download_tools()