Change permission FreshchatSDK.h in iOS

change_public.py

import uuid
import os

#Tags
FILE_REF_SECTION = "PBXFileReference section"
PACKAGE_HEADER_REF_SECTION = "PBXNativeTarget section"
PACKAGE_HEADER_DEFINITION = "PBXHeadersBuildPhase section"
PUBLIC_HEADER_DEFINITION = "PBXBuildFile section */"

#Constants
PBXFILE = "Pods/Pods.xcodeproj/project.pbxproj"
PACKAGENAME = "flutter_freshchat"
HEADERFILE = "FreshchatSDK.h"


# id = uuid.uuid4().hex.upper()


def extract_section(content, tag, tagend):
    start = content.index(tag) + len(tag)
    end = content.index(tagend, start)
    return content[start:end]

#Extract File ref
def get_file_ref(content):
    if content is None:
        return
    #Extract usable section from the file
    section = extract_section(content, FILE_REF_SECTION, FILE_REF_SECTION)
    #From the section, extract the ref
    line = [i for i in section.splitlines() if HEADERFILE in i][0]
    res = line[:(line.index("/*"))].strip()
    return res

#Extract package header ref
def get_package_header_ref(content):
    if content is None:
        return
    #Extract usable section from the file
    section = extract_section(content, PACKAGE_HEADER_REF_SECTION, PACKAGE_HEADER_REF_SECTION)
    #From the section, package sub section
    section = extract_section(section, PACKAGENAME , ");")

    line = [i for i in section.splitlines() if "Headers" in i][0]
    res = line[:(line.index("/*"))].strip()
    return res


#Extract File Header ref
#This section is of two states. 1. If the header definition exists within package's header def (Not Likely) Or Not
def get_file_header_ref(content, package_header_ref):
    if content is None:
        return
    #Extract usable section from the file
    section = extract_section(content, PACKAGE_HEADER_DEFINITION, PACKAGE_HEADER_DEFINITION)

    #From the section, package sub section
    section = extract_section(section, package_header_ref , ");")
    #From the section, extract the ref
    line = [i for i in section.splitlines() if HEADERFILE in i]
    if len(line) == 0:
        return
    line = line[0]
    res = line[:(line.index("/*"))].strip()
    return res


#This section attempts to add header to the package header definition
def add_file_to_headers(content, package_header_ref):
    #find the PBXHeadersBuildPhase section
    pre = content.index(PACKAGE_HEADER_DEFINITION)
    pre2 = content.index("{0} /* Headers */ =".format(package_header_ref), pre)
    start = content.index("files = (", pre2) + len("files = (")
    ref = uuid.uuid4().hex.upper()
    #C4DD7552E76E975403D2B2E193DAC088 /* FlutterFreshchatPlugin.h in Headers */,
    header = "\n\t\t\t\t{0} /* {1} in Headers */,".format(ref, HEADERFILE )
    #add to content
    return ref, content[:start] + header + content[start:]


#Three scenarios. 1, header exists and is public (in that case, skip)
#2, Header exists but isn't public (Fix)
#3, Header doesn't exist, so just add it
def add_public_header(content, file_header_ref, file_ref):
    if content is None:
        return
    try: #First 2 scenarios
        start = content.index(file_header_ref, 1, content.index("End {0}".format(PUBLIC_HEADER_DEFINITION) )) -3
        end = content.index("\n", start+3)
    except ValueError:
        start = content.index(PUBLIC_HEADER_DEFINITION) + len(PUBLIC_HEADER_DEFINITION)
        end = start

    header = '\n\t\t'+file_header_ref+' /* '+HEADERFILE+' in Headers */ = {isa = PBXBuildFile; fileRef = '+file_ref+' /* '+HEADERFILE+' */; settings = {ATTRIBUTES = (Public, ); }; };'

    return content[:start] + header + content[end:]


def perform_action():
    #Check if the Pod Project File exists
    if not os.path.isfile(PBXFILE):
        print("{0} does not exist, make sure you've run the pod install command ".format(PBXFILE))
        return

    #read file content
    content = ""
    with open(PBXFILE, 'r') as file:
        content = file.read()
        file.close()

    #Was packaged installed in the Pods?
    if PACKAGENAME not in content:
        print("Unable to find {0} in the pbx file, please reinstall pod".format(PACKAGENAME))
        return

    #Is headerfile reference declared in the pbx file?
    if HEADERFILE not in content:
        print("Unable to find {0} reference in the pbx file, please reinstall pod".format(HEADERFILE))
        return

    #Variables
    file_ref=""
    package_header_ref=""
    file_header_ref=""

    file_ref = get_file_ref(content)
    if file_ref is None:
        print("Unable to extract {0} reference from the pbx file".format(HEADERFILE))

    package_header_ref = get_package_header_ref(content)
    if package_header_ref is None:
        print("Unable to extract {0} header reference from the pbx file".format(PACKAGENAME))

    file_header_ref = get_file_header_ref(content, package_header_ref)

    #If the file was not declared as header yet (Very likely), Add it
    if file_header_ref is None:
        file_header_ref, content = add_file_to_headers(content, package_header_ref)
    if file_header_ref is None:
        print("Couldn't find and unable to add {0} to package header def".format(HEADERFILE))
        return

    #Last Stage, Add file to public header def and add attribute public
    content = add_public_header(content, file_header_ref, file_ref)
    with open(PBXFILE, 'w') as file:
        file.write(content)
        file.close()
        print("The change was done successfully")

perform_action()