From 9dae0115592424929ffe4045069740365bc91d52 Mon Sep 17 00:00:00 2001
From: Emiliano Ciavatta
Date: Sun, 9 Aug 2020 11:22:47 +0200
Subject: Update frontend filters

---
 frontend/src/components/ServicePortFilter.js       |  91 -------------
 frontend/src/components/ServicePortFilter.scss     |  61 ---------
 .../components/filters/BooleanConnectionsFilter.js |  72 ++++++++++
 .../filters/BooleanConnectionsFilter.scss          |  26 ++++
 .../src/components/filters/FiltersDefinitions.js   |  69 ++++++++++
 .../components/filters/RulesConnectionsFilter.js   |  90 +++++++++++++
 .../components/filters/RulesConnectionsFilter.scss | 136 +++++++++++++++++++
 .../components/filters/StringConnectionsFilter.js  | 146 +++++++++++++++++++++
 .../filters/StringConnectionsFilter.scss           |  68 ++++++++++
 9 files changed, 607 insertions(+), 152 deletions(-)
 delete mode 100644 frontend/src/components/ServicePortFilter.js
 delete mode 100644 frontend/src/components/ServicePortFilter.scss
 create mode 100644 frontend/src/components/filters/BooleanConnectionsFilter.js
 create mode 100644 frontend/src/components/filters/BooleanConnectionsFilter.scss
 create mode 100644 frontend/src/components/filters/FiltersDefinitions.js
 create mode 100644 frontend/src/components/filters/RulesConnectionsFilter.js
 create mode 100644 frontend/src/components/filters/RulesConnectionsFilter.scss
 create mode 100644 frontend/src/components/filters/StringConnectionsFilter.js
 create mode 100644 frontend/src/components/filters/StringConnectionsFilter.scss

(limited to 'frontend/src/components')

diff --git a/frontend/src/components/ServicePortFilter.js b/frontend/src/components/ServicePortFilter.js
deleted file mode 100644
index 72f2643..0000000
--- a/frontend/src/components/ServicePortFilter.js
+++ /dev/null
@@ -1,91 +0,0 @@
-import React, {Component} from 'react';
-import './ServicePortFilter.scss';
-import {withRouter} from "react-router-dom";
-import {Redirect} from "react-router";
-
-class ServicePortFilter extends Component {
-
-    constructor(props) {
-        super(props);
-        this.state = {
-            servicePort: "",
-            servicePortUrl: null,
-            timeoutHandle: null
-        };
-
-        this.servicePortChanged = this.servicePortChanged.bind(this);
-    }
-
-    componentDidMount() {
-        let params = new URLSearchParams(this.props.location.search);
-        let servicePort = params.get("service_port");
-        if (servicePort !== null) {
-            this.setState({
-                servicePort: servicePort,
-                servicePortUrl: servicePort
-            });
-        }
-    }
-
-    servicePortChanged(event) {
-        let value = event.target.value.replace(/[^\d]/gi, '');
-        if (value.startsWith("0")) {
-            return;
-        }
-        if (value !== "") {
-            let port = parseInt(value);
-            if (port > 65565) {
-                return;
-            }
-        }
-
-        if (this.state.timeoutHandle !== null) {
-            clearTimeout(this.state.timeoutHandle);
-        }
-        this.setState({
-            servicePort: value,
-            timeoutHandle: setTimeout(() =>
-                this.setState({servicePortUrl: value === "" ? null : value}), 300)
-        });
-    }
-
-    render() {
-        let redirect = null;
-        let urlParams = new URLSearchParams(this.props.location.search);
-        if (urlParams.get("service_port") !== this.state.servicePortUrl) {
-            if (this.state.servicePortUrl !== null) {
-                urlParams.set("service_port", this.state.servicePortUrl);
-            } else {
-                urlParams.delete("service_port");
-            }
-            redirect = <Redirect push to={`${this.props.location.pathname}?${urlParams}`} />;
-        }
-        let active = this.state.servicePort !== "";
-
-        return (
-            <div className={"filter d-inline-block" + (active ? " filter-active" : "")}
-                 style={{"width": "200px"}}>
-                <div className="input-group">
-                    <div className="filter-name-wrapper">
-                        <span className="filter-name" id="filter-service_port">service_port:</span>
-                    </div>
-                    <input placeholder="all ports" aria-label="service_port" aria-describedby="filter-service_port"
-                           className="form-control filter-value" onChange={this.servicePortChanged} value={this.state.servicePort} /></div>
-
-                { active &&
-                    <div className="filter-delete">
-                        <span className="filter-delete-icon" onClick={() => this.setState({
-                            servicePort: "",
-                            servicePortUrl: null
-                        })}>del</span>
-                    </div>
-                }
-
-                {redirect}
-            </div>
-        );
-    }
-
-}
-
-export default withRouter(ServicePortFilter);
diff --git a/frontend/src/components/ServicePortFilter.scss b/frontend/src/components/ServicePortFilter.scss
deleted file mode 100644
index 2b23444..0000000
--- a/frontend/src/components/ServicePortFilter.scss
+++ /dev/null
@@ -1,61 +0,0 @@
-@import '../colors.scss';
-
-.filter {
-  margin: 0 10px;
-  position: relative;
-
-  .filter-name-wrapper {
-    background-color: $color-primary-2;
-    padding: 3px 7px;
-    border-top-left-radius: 5px;
-    border-bottom-left-radius: 5px;
-  }
-
-  .filter-name {
-    font-size: 13px;
-  }
-
-  .filter-value {
-    font-size: 13px;
-    padding-left: 0;
-    border-radius: 5px;
-
-    &:focus {
-      background-color: $color-primary-2;
-    }
-  }
-
-  &.filter-active {
-    .filter-name-wrapper {
-      background-color: $color-primary-4;
-      color: $color-primary-3;
-    }
-
-    .filter-value {
-      font-size: 13px;
-      background-color: $color-primary-4;
-      color: $color-primary-3;
-
-      &:focus {
-        background-color: $color-primary-4;
-      }
-    }
-  }
-
-  .filter-delete {
-    position: absolute;
-    right: 10px;
-    top: 10px;
-
-    z-index: 10;
-    font-size: 11px;
-    letter-spacing: -0.5px;
-
-    color: $color-primary-2;
-    cursor: pointer;
-
-    .filter-delete-icon {
-      font-weight: 800;
-    }
-  }
-}
\ No newline at end of file
diff --git a/frontend/src/components/filters/BooleanConnectionsFilter.js b/frontend/src/components/filters/BooleanConnectionsFilter.js
new file mode 100644
index 0000000..7dea7cf
--- /dev/null
+++ b/frontend/src/components/filters/BooleanConnectionsFilter.js
@@ -0,0 +1,72 @@
+import React, {Component} from 'react';
+import {withRouter} from "react-router-dom";
+import {Redirect} from "react-router";
+import './BooleanConnectionsFilter.scss';
+
+const classNames = require('classnames');
+
+class BooleanConnectionsFilter extends Component {
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            filterActive: "false"
+        };
+
+        this.filterChanged = this.filterChanged.bind(this);
+        this.needRedirect = false;
+    }
+
+    componentDidMount() {
+        let params = new URLSearchParams(this.props.location.search);
+        this.setState({filterActive: this.toBoolean(params.get(this.props.filterName)).toString()});
+    }
+
+    componentDidUpdate(prevProps, prevState, snapshot) {
+        let urlParams = new URLSearchParams(this.props.location.search);
+        let externalActive = this.toBoolean(urlParams.get(this.props.filterName));
+        let filterActive = this.toBoolean(this.state.filterActive);
+        // if the filterActive state is changed by another component (and not by filterChanged func) and
+        // the query string is not equals at the filterActive state, update the state of the component
+        if (this.toBoolean(prevState.filterActive) === filterActive && filterActive !== externalActive) {
+            this.setState({filterActive: externalActive.toString()});
+        }
+    }
+
+    toBoolean(value) {
+        return value !== null && value.toLowerCase() === "true";
+    }
+
+    filterChanged() {
+        this.needRedirect = true;
+        this.setState({filterActive: (!this.toBoolean(this.state.filterActive)).toString()});
+    }
+
+    render() {
+        let redirect = null;
+        if (this.needRedirect) {
+            let urlParams = new URLSearchParams(this.props.location.search);
+            if (this.toBoolean(this.state.filterActive)) {
+                urlParams.set(this.props.filterName, "true");
+            } else {
+                urlParams.delete(this.props.filterName);
+            }
+            redirect = <Redirect push to={`${this.props.location.pathname}?${urlParams}`} />;
+
+            this.needRedirect = false;
+        }
+
+        return (
+            <div className={classNames("filter", "d-inline-block", {"filter-active" : this.toBoolean(this.state.filterActive)})}>
+                <div className="filter-boolean" onClick={this.filterChanged}>
+                    <span>{this.props.filterName}</span>
+                </div>
+
+                {redirect}
+            </div>
+        );
+    }
+
+}
+
+export default withRouter(BooleanConnectionsFilter);
diff --git a/frontend/src/components/filters/BooleanConnectionsFilter.scss b/frontend/src/components/filters/BooleanConnectionsFilter.scss
new file mode 100644
index 0000000..f3d8697
--- /dev/null
+++ b/frontend/src/components/filters/BooleanConnectionsFilter.scss
@@ -0,0 +1,26 @@
+@import '../../colors';
+
+.filter {
+
+  .filter-boolean {
+    padding: 0 10px;
+    background-color: $color-primary-2;
+    border-radius: 5px;
+    cursor: pointer;
+    height: 34px;
+
+    span {
+      display: block;
+      font-size: 13px;
+      padding: 6px 5px;
+    }
+  }
+
+  &.filter-active {
+    .filter-boolean {
+      background-color: $color-primary-4;
+      color: $color-primary-3;
+    }
+  }
+
+}
diff --git a/frontend/src/components/filters/FiltersDefinitions.js b/frontend/src/components/filters/FiltersDefinitions.js
new file mode 100644
index 0000000..a582d02
--- /dev/null
+++ b/frontend/src/components/filters/FiltersDefinitions.js
@@ -0,0 +1,69 @@
+import {
+    cleanNumber,
+    timestampToTime,
+    timeToTimestamp,
+    validate24HourTime,
+    validateIpAddress,
+    validateMin,
+    validatePort
+} from "../../utils";
+import StringConnectionsFilter from "./StringConnectionsFilter";
+import React from "react";
+import RulesConnectionsFilter from "./RulesConnectionsFilter";
+import BooleanConnectionsFilter from "./BooleanConnectionsFilter";
+
+
+export const filtersNames = ["service_port", "matched_rules", "client_address", "client_port",
+    "min_duration", "max_duration", "min_bytes", "max_bytes", "started_after",
+    "started_before", "closed_after", "closed_before", "marked", "hidden"];
+
+export const filtersDefinitions = {
+    service_port: <StringConnectionsFilter filterName="service_port"
+                                           defaultFilterValue="all_ports"
+                                           replaceFunc={cleanNumber}
+                                           validateFunc={validatePort}/>,
+    matched_rules: <RulesConnectionsFilter />,
+    client_address: <StringConnectionsFilter filterName="client_address"
+                                             defaultFilterValue="all_addresses"
+                                             validateFunc={validateIpAddress} />,
+    client_port: <StringConnectionsFilter filterName="client_port"
+                                          defaultFilterValue="all_ports"
+                                          replaceFunc={cleanNumber}
+                                          validateFunc={validatePort}/>,
+    min_duration: <StringConnectionsFilter filterName="min_duration"
+                                           defaultFilterValue="0"
+                                           replaceFunc={cleanNumber}
+                                           validateFunc={validateMin(0)}/>,
+    max_duration: <StringConnectionsFilter filterName="max_duration"
+                                           defaultFilterValue="∞"
+                                           replaceFunc={cleanNumber} />,
+    min_bytes: <StringConnectionsFilter filterName="min_bytes"
+                                        defaultFilterValue="0"
+                                        replaceFunc={cleanNumber}
+                                        validateFunc={validateMin(0)} />,
+    max_bytes: <StringConnectionsFilter filterName="max_bytes"
+                                        defaultFilterValue="∞"
+                                        replaceFunc={cleanNumber} />,
+    started_after: <StringConnectionsFilter filterName="started_after"
+                                            defaultFilterValue="00:00:00"
+                                            validateFunc={validate24HourTime}
+                                            encodeFunc={timeToTimestamp}
+                                            decodeFunc={timestampToTime} />,
+    started_before: <StringConnectionsFilter filterName="started_before"
+                                             defaultFilterValue="00:00:00"
+                                             validateFunc={validate24HourTime}
+                                             encodeFunc={timeToTimestamp}
+                                             decodeFunc={timestampToTime} />,
+    closed_after: <StringConnectionsFilter filterName="closed_after"
+                                           defaultFilterValue="00:00:00"
+                                           validateFunc={validate24HourTime}
+                                           encodeFunc={timeToTimestamp}
+                                           decodeFunc={timestampToTime} />,
+    closed_before: <StringConnectionsFilter filterName="closed_before"
+                                            defaultFilterValue="00:00:00"
+                                            validateFunc={validate24HourTime}
+                                            encodeFunc={timeToTimestamp}
+                                            decodeFunc={timestampToTime} />,
+    marked: <BooleanConnectionsFilter filterName={"marked"} />,
+    hidden: <BooleanConnectionsFilter filterName={"hidden"} />
+};
diff --git a/frontend/src/components/filters/RulesConnectionsFilter.js b/frontend/src/components/filters/RulesConnectionsFilter.js
new file mode 100644
index 0000000..358085f
--- /dev/null
+++ b/frontend/src/components/filters/RulesConnectionsFilter.js
@@ -0,0 +1,90 @@
+import React, {Component} from 'react';
+import {withRouter} from "react-router-dom";
+import {Redirect} from "react-router";
+import './RulesConnectionsFilter.scss';
+import ReactTags from 'react-tag-autocomplete';
+import axios from 'axios';
+
+const classNames = require('classnames');
+
+class RulesConnectionsFilter extends Component {
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mounted: false,
+            rules: [],
+            activeRules: []
+        };
+
+        this.needRedirect = false;
+    }
+
+    componentDidMount() {
+        let params = new URLSearchParams(this.props.location.search);
+        let activeRules = params.getAll("matched_rules") || [];
+
+        axios.get("/api/rules").then(res => {
+            let rules = res.data.flatMap(rule => rule.enabled ? [{id: rule.id, name: rule.name}] : []);
+            activeRules = rules.filter(rule => activeRules.some(id => rule.id === id));
+            this.setState({rules, activeRules, mounted: true});
+        });
+    }
+
+    componentDidUpdate(prevProps, prevState, snapshot) {
+        let urlParams = new URLSearchParams(this.props.location.search);
+        let externalRules = urlParams.getAll("matched_rules") || [];
+        let activeRules = this.state.activeRules.map(r => r.id);
+        let compareRules = (first, second) => first.sort().join(",") === second.sort().join(",");
+        if (this.state.mounted &&
+            compareRules(prevState.activeRules.map(r => r.id), activeRules) &&
+            !compareRules(externalRules, activeRules)) {
+            this.setState({activeRules: externalRules.map(id => this.state.rules.find(r => r.id === id))});
+        }
+    }
+
+    onDelete(i) {
+        const activeRules = this.state.activeRules.slice(0);
+        activeRules.splice(i, 1);
+        this.needRedirect = true;
+        this.setState({ activeRules });
+    }
+
+    onAddition(rule) {
+        if (!this.state.activeRules.includes(rule)) {
+            const activeRules = [].concat(this.state.activeRules, rule);
+            this.needRedirect = true;
+            this.setState({activeRules});
+        }
+    }
+
+    render() {
+        let redirect = null;
+
+        if (this.needRedirect) {
+            let urlParams = new URLSearchParams(this.props.location.search);
+            urlParams.delete("matched_rules");
+            this.state.activeRules.forEach(rule => urlParams.append("matched_rules", rule.id));
+            redirect = <Redirect push to={`${this.props.location.pathname}?${urlParams}`} />;
+
+            this.needRedirect = false;
+        }
+
+        return (
+            <div className={classNames("filter", "d-inline-block", {"filter-active" : this.state.filterActive === "true"})}>
+                <div className="filter-booleanq">
+                    <ReactTags tags={this.state.activeRules} suggestions={this.state.rules}
+                        onDelete={this.onDelete.bind(this)} onAddition={this.onAddition.bind(this)}
+                               minQueryLength={0} placeholderText="rule_name"
+                               suggestionsFilter={(suggestion, query) =>
+                                   suggestion.name.startsWith(query) && !this.state.activeRules.includes(suggestion)} />
+                </div>
+
+                {redirect}
+            </div>
+        );
+    }
+
+}
+
+export default withRouter(RulesConnectionsFilter);
diff --git a/frontend/src/components/filters/RulesConnectionsFilter.scss b/frontend/src/components/filters/RulesConnectionsFilter.scss
new file mode 100644
index 0000000..d75066e
--- /dev/null
+++ b/frontend/src/components/filters/RulesConnectionsFilter.scss
@@ -0,0 +1,136 @@
+@import '../../colors';
+
+.react-tags {
+  position: relative;
+  padding: 0px 6px;
+  border-radius: 4px;
+
+  background-color: $color-primary-2;
+
+
+  /* shared font styles */
+  font-size: 12px;
+
+  /* clicking anywhere will focus the input */
+  cursor: text;
+
+  z-index: 10;
+}
+
+.react-tags.is-focused {
+  border-color: #B1B1B1;
+}
+
+.react-tags__selected {
+  display: inline;
+}
+
+.react-tags__selected-tag {
+  display: inline-block;
+  border: none;
+  margin: 0 6px 6px 0;
+  padding: 2px 4px;
+  border-radius: 2px;
+  background: $color-primary-4;
+  color: $color-primary-3;
+
+  font-size: 11px;
+}
+
+.react-tags__selected-tag:after {
+  content: '\2715';
+  color: $color-primary-3;
+  margin-left: 8px;
+}
+
+.react-tags__selected-tag:hover,
+.react-tags__selected-tag:focus {
+  border-color: #B1B1B1;
+}
+
+.react-tags__search {
+  display: inline-block;
+  padding: 7px 10px;
+
+  /* prevent autoresize overflowing the container */
+  max-width: 100%;
+}
+
+@media screen and (min-width: 30em) {
+
+  .react-tags__search {
+    /* this will become the offsetParent for suggestions */
+    position: relative;
+  }
+
+}
+
+.react-tags__search-input {
+  max-width: 100%;
+  margin: 0;
+  padding: 0;
+  border: 0;
+  outline: none;
+
+  background-color: $color-primary-2;
+  color: $color-primary-4;
+
+  /* match the font styles */
+  font-size: inherit;
+  line-height: inherit;
+}
+
+.react-tags__search-input::-ms-clear {
+  display: none;
+}
+
+.react-tags__suggestions {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  width: 100%;
+}
+
+@media screen and (min-width: 30em) {
+
+  .react-tags__suggestions {
+    width: 240px;
+  }
+
+}
+
+.react-tags__suggestions ul {
+  margin: 4px -1px;
+  padding: 0;
+  list-style: none;
+  background: $color-primary-4;
+  border-radius: 2px;
+  color: $color-primary-1;
+  font-size: 12px;
+}
+
+.react-tags__suggestions li {
+  border-bottom: 1px solid #ddd;
+  padding: 3px 5px;
+}
+
+.react-tags__suggestions li mark {
+  text-decoration: underline;
+  background: none;
+  font-weight: 600;
+}
+
+.react-tags__suggestions li:hover {
+  cursor: pointer;
+  background: $color-primary-0;
+  color: $color-primary-4;
+}
+
+.react-tags__suggestions li.is-active {
+  background: #b7cfe0;
+}
+
+.react-tags__suggestions li.is-disabled {
+  opacity: 0.5;
+  cursor: auto;
+}
\ No newline at end of file
diff --git a/frontend/src/components/filters/StringConnectionsFilter.js b/frontend/src/components/filters/StringConnectionsFilter.js
new file mode 100644
index 0000000..490a569
--- /dev/null
+++ b/frontend/src/components/filters/StringConnectionsFilter.js
@@ -0,0 +1,146 @@
+import React, {Component} from 'react';
+import {withRouter} from "react-router-dom";
+import {Redirect} from "react-router";
+import './StringConnectionsFilter.scss';
+
+const classNames = require('classnames');
+
+class StringConnectionsFilter extends Component {
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            fieldValue: "",
+            filterValue: null,
+            timeoutHandle: null,
+            invalidValue: false
+        };
+        this.needRedirect = false;
+        this.filterChanged = this.filterChanged.bind(this);
+    }
+
+    componentDidMount() {
+        let params = new URLSearchParams(this.props.location.search);
+        this.updateStateFromFilterValue(params.get(this.props.filterName));
+    }
+
+    componentDidUpdate(prevProps, prevState, snapshot) {
+        let urlParams = new URLSearchParams(this.props.location.search);
+        let filterValue = urlParams.get(this.props.filterName);
+        if (prevState.filterValue === this.state.filterValue && this.state.filterValue !== filterValue) {
+            this.updateStateFromFilterValue(filterValue);
+        }
+    }
+
+    updateStateFromFilterValue(filterValue) {
+        if (filterValue !== null) {
+            let fieldValue = filterValue;
+            if (typeof this.props.decodeFunc === "function") {
+                fieldValue = this.props.decodeFunc(filterValue);
+            }
+            if (typeof this.props.replaceFunc === "function") {
+                fieldValue = this.props.replaceFunc(fieldValue);
+            }
+            if (this.isValueValid(fieldValue)) {
+                this.setState({
+                    fieldValue: fieldValue,
+                    filterValue: filterValue
+                });
+            } else {
+                this.setState({
+                    fieldValue: fieldValue,
+                    invalidValue: true
+                });
+            }
+        } else {
+            this.setState({fieldValue: "", filterValue: null});
+        }
+    }
+
+    isValueValid(value) {
+        return typeof this.props.validateFunc !== "function" ||
+            (typeof this.props.validateFunc === "function" && this.props.validateFunc(value));
+    }
+
+    filterChanged(event) {
+        let fieldValue = event.target.value;
+        if (this.state.timeoutHandle !== null) {
+            clearTimeout(this.state.timeoutHandle);
+        }
+
+        if (typeof this.props.replaceFunc === "function") {
+            fieldValue = this.props.replaceFunc(fieldValue);
+        }
+
+        if (fieldValue === "") {
+            this.needRedirect = true;
+            this.setState({fieldValue: "", filterValue: null, invalidValue: false});
+            return;
+        }
+
+        if (this.isValueValid(fieldValue)) {
+            let filterValue = fieldValue;
+            if (filterValue !== "" && typeof this.props.encodeFunc === "function") {
+                filterValue = this.props.encodeFunc(filterValue);
+            }
+
+            this.setState({
+                fieldValue: fieldValue,
+                timeoutHandle: setTimeout(() => {
+                    this.needRedirect = true;
+                    this.setState({filterValue: filterValue});
+                }, 500),
+                invalidValue: false
+            });
+        } else {
+            this.needRedirect = true;
+            this.setState({
+                fieldValue: fieldValue,
+                invalidValue: true
+            });
+        }
+    }
+
+    render() {
+        let redirect = null;
+        if (this.needRedirect) {
+            let urlParams = new URLSearchParams(this.props.location.search);
+            if (this.state.filterValue !== null) {
+                urlParams.set(this.props.filterName, this.state.filterValue);
+            } else {
+                urlParams.delete(this.props.filterName);
+            }
+            redirect = <Redirect push to={`${this.props.location.pathname}?${urlParams}`} />;
+            this.needRedirect = false;
+        }
+        let active = this.state.filterValue !== null;
+
+        return (
+            <div className={classNames("filter", "d-inline-block", {"filter-active" : active},
+                {"filter-invalid": this.state.invalidValue})} style={{"width": "200px"}}>
+                <div className="input-group">
+                    <div className="filter-name-wrapper">
+                        <span className="filter-name" id={`filter-${this.props.filterName}`}>{this.props.filterName}:</span>
+                    </div>
+                    <input placeholder={this.props.defaultFilterValue} aria-label={this.props.filterName}
+                           aria-describedby={`filter-${this.props.filterName}`} className="form-control filter-value"
+                           onChange={this.filterChanged} value={this.state.fieldValue} />
+                </div>
+
+                { active &&
+                    <div className="filter-delete">
+                        <span className="filter-delete-icon" onClick={() => {
+                            this.needRedirect = true;
+                            this.setState({fieldValue: "", filterValue: null});
+                        }}>del</span>
+                    </div>
+                }
+
+                {redirect}
+            </div>
+        );
+    }
+
+}
+
+export default withRouter(StringConnectionsFilter);
diff --git a/frontend/src/components/filters/StringConnectionsFilter.scss b/frontend/src/components/filters/StringConnectionsFilter.scss
new file mode 100644
index 0000000..ecc8d0f
--- /dev/null
+++ b/frontend/src/components/filters/StringConnectionsFilter.scss
@@ -0,0 +1,68 @@
+@import '../../colors';
+
+.filter {
+  margin: 0 10px;
+  position: relative;
+
+  .filter-name-wrapper {
+    background-color: $color-primary-2;
+    padding: 3px 7px;
+    border-top-left-radius: 5px;
+    border-bottom-left-radius: 5px;
+  }
+
+  .filter-name {
+    font-size: 13px;
+  }
+
+  .filter-value {
+    font-size: 13px;
+    padding-left: 0;
+    border-radius: 5px;
+
+    &:focus {
+      background-color: $color-primary-2;
+    }
+  }
+
+  &.filter-active {
+    .filter-name-wrapper {
+      background-color: $color-primary-4;
+      color: $color-primary-3;
+    }
+
+    .filter-value {
+      background-color: $color-primary-4;
+      color: $color-primary-3;
+    }
+  }
+
+  &.filter-invalid {
+    .filter-name-wrapper {
+      background-color: $color-secondary-2;
+      color: $color-primary-4;
+    }
+
+    .filter-value {
+      background-color: $color-secondary-2;
+      color: $color-primary-4;
+    }
+  }
+
+  .filter-delete {
+    position: absolute;
+    right: 10px;
+    top: 10px;
+
+    z-index: 10;
+    font-size: 11px;
+    letter-spacing: -0.5px;
+
+    color: $color-primary-2;
+    cursor: pointer;
+
+    .filter-delete-icon {
+      font-weight: 800;
+    }
+  }
+}
\ No newline at end of file
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