LDAP LDIF to JSON

ldif_to_json.sh

#!/bin/bash

# Check if an LDIF file was provided
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 <ldif_file>"
    exit 1
fi

ldif_file=$1

# Begin the JSON array
echo "["

# Initialize isFirst to handle commas between objects
isFirst=true

# Process the LDIF file
awk 'BEGIN {FS=": "; OFS=": "}
{
    if ($0 ~ /^dn:/) {
        if (!isFirst) {
            print "  },"
        } else {
            isFirst=false
        }
        print "  {"
        print "    \"$dn\": \"" $2 "\""
    } else if ($0 ~ /^#/) {
        # Skip comment lines
        next
    } else if ($0 ~ /^[a-zA-Z]/) {
        print "    \"" $1 "\": \"" $2 "\""
    }
} END {
    print "  }"
}' "$ldif_file"

# End the JSON array
echo "]"

ldif_to_json_for.sh

#!/usr/bin/env bash

convert_to_json() {
    local input="$1"
    local -A keys_seen
    local json="{"
    local first_entry=true

    # Convert input into lines, one per key-value pair
    IFS=' ' read -ra kv_pairs <<< "$input"
    for kv in "${kv_pairs[@]}"; do
        IFS=: read key value <<< "$kv"

        # Remove potential whitespace around keys/values
        key=$(echo "$key" | xargs)
        value=$(echo "$value" | xargs)

        # Skip empty keys
        [[ -z "$key" ]] && continue

        # Check if key has been seen before
        if [[ -n "${keys_seen[$key]}" ]]; then
            # Append value to existing key
            new_value=$(echo "$json" | sed "s/\"$key\": \[\(.*\)\]/\"$key\": [\1, \"$value\"]/")
            json="$new_value"
        else
            # Add new key-value pair
            if [ "$first_entry" = true ]; then
                first_entry=false
            else
                json+=", "
            fi
            json+="\"$key\": [\"$value\"]"
            keys_seen[$key]=1
        fi
    done

    json+="}"
    echo "$json"
}

# Example usage
input="dn: anything,canbehere mail: [email protected] dn: somethingelse"
convert_to_json "$input"

ldif_to_json_ifs.sh

#!/usr/bin/env bash

convert_to_json() {
    local input="$1"
    local -A kv_pairs

    # Split input into an array of 'key: value' strings
    IFS=' ' read -ra pairs <<< "$input"
    for pair in "${pairs[@]}"; do
        IFS=: read -r key value <<< "$pair"

        # Trim whitespace from key and value
        key=$(echo "$key" | xargs)
        value=$(echo "$value" | xargs)

        # Handle duplicate keys by appending values to an array
        if [[ -n "${kv_pairs[$key]}" ]]; then
            # If already an array, add to it; otherwise, create an array
            if [[ "${kv_pairs[$key]}" =~ ^\[\ \".*\"\ \]$ ]]; then
                kv_pairs[$key]="${kv_pairs[$key]%]*}, \"$value\"]"
            else
                kv_pairs[$key]="[ \"${kv_pairs[$key]}\", \"$value\" ]"
            fi
        else
            kv_pairs[$key]="\"$value\""
        fi
    done

    # Construct JSON string
    local json="{"
    local sep=""
    for key in "${!kv_pairs[@]}"; do
        json+="$sep\"$key\": ${kv_pairs[$key]}"
        sep=", "
    done
    json+="}"

    echo "$json"
}

# Example usage
input="dn: anything,canbehere mail: [email protected] dn: somethingelse"
convert_to_json "$input"

ldif_to_json_simple.sh

#!/usr/bin/env bash

convert_to_json() {
    local input_str="$1"
    local -A kv_pairs # Declare associative array for storing key-value pairs
    
    # Normalize and parse the input string into key-value pairs
    echo "$input_str" | tr ' ' '\n' | while IFS=: read -r key value; do
        # Trim spaces from key and value
        key=$(echo "$key" | xargs)
        value=$(echo "$value" | xargs)
        
        # Check if key exists and handle multiple values
        if [[ -n "${kv_pairs[$key]}" ]]; then
            kv_pairs["$key"]="${kv_pairs[$key]}, \"$value\""
        else
            kv_pairs["$key"]="\"$value\""
        fi
    done
    
    # Construct JSON string
    local json="{"
    local first=true
    for key in "${!kv_pairs[@]}"; do
        if [ "$first" = true ]; then
            first=false
        else
            json+=", "
        fi
        
        # Check if we have multiple values for this key
        if [[ ${kv_pairs[$key]} =~ , ]]; then
            json+="\"$key\": [${kv_pairs[$key]}]"
        else
            json+="\"$key\": ${kv_pairs[$key]}"
        fi
    done
    json+="}"
    
    echo "$json"
}

# Example usage
input="dn: anything,canbehere mail: [email protected] dn: somethingelse"
convert_to_json "$input"

ldif_to_json_w_arrays.sh

#!/usr/bin/env bash

convert_to_json() {
    local input_str="$1"
    declare -A kv_pairs # Associative array to hold key-value pairs

    # Normalize input and read each key-value pair
    # Replace ' key:' with newline to ensure each key-value pair is on a new line
    local formatted_input=$(echo "$input_str" | sed 's/ \([^ ]\+\):/\n\1:/g')

    while IFS=: read -r key value; do
        # Trim leading and trailing spaces from key and value
        key=$(echo "$key" | xargs)
        value=$(echo "$value" | xargs)
        
        # Append value to existing key, using a unique delimiter for multiple values
        if [[ -n "${kv_pairs[$key]}" ]]; then
            # If key exists, append value with delimiter
            kv_pairs["$key"]+=$'\4'"$value" # Using ASCII EOT (End of Transmission) as a delimiter
        else
            # If key does not exist, add it
            kv_pairs["$key"]="$value"
        fi
    done <<< "$formatted_input"

    # Begin JSON output
    echo -n '{'
    local first=1
    for key in "${!kv_pairs[@]}"; do
        if [[ $first -eq 0 ]]; then
            echo -n ', '
        else
            first=0
        fi

        # Check if the key has multiple values (indicated by the delimiter)
        if [[ "${kv_pairs[$key]}" =~ $'\4' ]]; then
            # Replace the delimiter with ", " to format as a JSON array
            local joined_values=$(echo "${kv_pairs[$key]}" | sed "s/$'\4'/\", \"/g")
            echo -n "\"$key\": [\"$joined_values\"]"
        else
            # Single value, just output it
            echo -n "\"$key\": \"${kv_pairs[$key]}\""
        fi
    done
    echo '}'
}

# Example usage
input="dn: anything,canbehere mail: [email protected] dn: somethingelse"
convert_to_json "$input"

ldif_to_json_w_awk.sh

#!/usr/bin/env bash

convert_to_json() {
    local input="$1"
    
    # Use awk to process the input string, split by ' ' and ':'
    # It handles both unique and duplicate keys, assembling arrays for duplicates
    echo "$input" | awk -v RS=" " '
    {
        # Split each record by ":", key is $1, value is the rest
        split($0, parts, /:/, seps);
        key = parts[1];
        value = parts[2];
        for(i = 3; i in parts; i++) {
            value = value ":" parts[i];
        }

        # Remove leading and trailing whitespace
        gsub(/^ +| +$/, "", key);
        gsub(/^ +| +$/, "", value);

        # Process key-value pairs
        if (length(key) > 0) {
            if (key in kv) {
                # Key exists; append value with a separator
                kv[key] = kv[key] "‚" value; # Use a rare character as a separator
            } else {
                # New key
                kv[key] = value;
            }
        }
    }
    END {
        # Begin JSON output
        printf "{";
        for (k in kv) {
            # Split values by the separator, if more than one exists
            n = split(kv[k], vals, "‚");
            if (n > 1) {
                # Output as an array
                printf "\"%s\":[", k;
                for (v=1; v <= n; v++) {
                    printf "\"%s\"", vals[v];
                    if (v < n) printf ", ";
                }
                printf "]";
            } else {
                # Output as a single value
                printf "\"%s\":\"%s\"", k, kv[k];
            }
            if (--c > 0) printf ", ";
        }
        printf "}\n";
    }' c=$(echo "$input" | awk '{print gsub(/ /," ")}') # Count of total keys for comma handling
}

# Example usage
input="dn: anything,canbehere mail: [email protected] dn: somethingelse"
convert_to_json "$input"