Sigaa

SIGAA Skill

SIGAA is a JSF-based web system with no public REST API. All automation uses authenticated web scraping (curl + Python).

Prerequisites

Required Environment Variables:

export SIGAA_URL='https://sigaa.unb.br'   # Institution base URL (no trailing slash)
export SIGAA_USER='241104251'             # Login: matricula number or CPF (institution-specific)
export SIGAA_PASSWORD='yourpassword'      # Your SIGAA password

• For username format per institution → see references/institutions.md
• Never pass credentials as command-line arguments — use env vars only

Quick Start

1. Login

source scripts/sigaa_login.sh
# Sets $SIGAA_COOKIE_FILE and $SIGAA_USER_ID
# Cookie file is chmod 600 and auto-removed on shell exit

2. Student Operations

bash scripts/sigaa_student.sh status             # Basic info + active program
bash scripts/sigaa_student.sh enrollments        # Current semester classes
bash scripts/sigaa_student.sh enrollment-result  # Status of enrollment requests (SUBMETIDA / DEFERIDA / NEGADA)
bash scripts/sigaa_student.sh grades             # Grades
bash scripts/sigaa_student.sh history            # Full academic history
bash scripts/sigaa_student.sh schedule           # Class schedule

3. Professor Operations

bash scripts/sigaa_professor.sh classes              # Current semester classes
bash scripts/sigaa_professor.sh students <turma_id>  # Students in a class
bash scripts/sigaa_professor.sh attendance           # Pending attendance
bash scripts/sigaa_professor.sh schedule             # Teaching schedule

JSF Navigation Pattern

SIGAA uses JavaServer Faces (JSF) with jsCookMenu. All menu actions require a POST with a fresh ViewState and jscook_action:

VS=$(curl -s -b "$SIGAA_COOKIE_FILE" -c "$SIGAA_COOKIE_FILE" \
  "${SIGAA_URL}/sigaa/portais/discente/discente.jsf" | \
  grep -oP 'name="javax\.faces\.ViewState"[^>]*value="\K[^"]+' | head -1)

curl -s -L -b "$SIGAA_COOKIE_FILE" -c "$SIGAA_COOKIE_FILE" \
  -X POST "${SIGAA_URL}/sigaa/portais/discente/discente.jsf" \
  -d "menu%3Aform_menu_discente=menu%3Aform_menu_discente" \
  -d "id=${SIGAA_USER_ID}" \
  --data-urlencode "jscook_action=menu_form_menu_discente_discente_menu:A]#{BEAN.method}" \
  --data-urlencode "javax.faces.ViewState=${VS}"

Full action reference → references/student-guide.md and references/professor-guide.md

Parsing Responses

import re, html as h

def clean_html(content):
    content = re.sub(r'<script[^>]*>.*?</script>', '', content, flags=re.DOTALL)
    content = re.sub(r'<style[^>]*>.*?</style>', '', content, flags=re.DOTALL)
    text = re.sub(r'<[^>]+>', ' ', content)
    return h.unescape(re.sub(r'[ \t]+', ' ', text))

def extract_table_rows(html_content):
    content = re.sub(r'<script[^>]*>.*?</script>', '', html_content, flags=re.DOTALL)
    rows = re.findall(r'<tr[^>]*>(.*?)</tr>', content, re.DOTALL)
    result = []
    for row in rows:
        cells = re.findall(r'<t[dh][^>]*>(.*?)</t[dh]>', row, re.DOTALL)
        clean = [h.unescape(re.sub(r'<[^>]+>|\s+', ' ', c)).strip() for c in cells if c.strip()]
        if clean:
            result.append(clean)
    return result

Security Notes

• Credentials via env vars only — never pass as CLI arguments (prevents shell history leakage)
• Cookie files: auto-created with chmod 600, auto-deleted on shell exit via trap
• Rate limiting: 0.5s delay between requests (built into scripts)
• Session scope: SIGAA sessions expire after ~20 min inactivity — re-source login if you get redirected to login page
• Network targets: scripts only contact $SIGAA_URL and the CAS SSO host derived from the login redirect — confirm these match your institution before running

Common Issues

References

• references/institutions.md — Supported institutions, login URLs, username formats
• references/student-guide.md — Full student portal guide, all JSF actions, parsing tips
• references/professor-guide.md — Professor portal, grade/attendance workflows